RULES FOR THE CLASSIFICATION OF SHIPS PART 17 2009 REVIEW OF AMENDMENTS IN RELATION TO PREVIOUS EDITION OF THE RULES RULES FOR THE CLASSIFICATION OF SHIPS Part 17 – Fire Protect

RULESFOR THE CLASSIFICATION OF

SHIPS

Part 17 – FIRE PROTECTION

2009

CROATIAN REGISTER OF SHIPPING

Hrvatska (Croatia) • 21000 Split • Marasovićeva 67 • P.O.B. 187Tel.: (...) 385 (0)21 40 81 11Fax.: (...) 385 (0)21 35 81 59

E-mail: [email protected] site: www.crs.hr

By decision of the General Committee of Croatian Register of Shipping,

RULES FOR THE CLASSIFICATION OF SHIPSPART 17 – FIRE PROTECTION

has been adopted on 8th May 2009 and shall enter into force on 1st July 2009

RULES FOR THE CLASSIFICATION OF SHIPSPART 17

2009

REVIEW OF AMENDMENTS IN RELATION TO PREVIOUSEDITION OF THE RULES

RULES FOR THE CLASSIFICATION OF SHIPSPart 17 – Fire Protection

Due to significant changes in respect to the Rules for technical supervision of sea-going ships, Part 17 – FireProtection, 2003 edition, deriving from SOLAS amendments 2000, and subsequent amendments, changes and correc-tions have not been indicated.

NOTE: Due to change of the structure of the Technical Rules (separation of statutory from classification rules),previously issued Rules for technical supervision of sea-going ships, Part 17 – Fire Protection, are now re-categorizedas a part of the classification rules.


2009

This Part of the Rules includes requirements of the following international Organizations:

International Maritime Organization (IMO)

Conventions: International Convention for the Safety of Life at Sea, 1974 (SOLAS 74) and all subsequentamendments up to and including the 2008 amendments (MSC.269(85)).

Protocol of 1988 relating to the International Convention for the Safety of Life at Sea, 1974, asamended (SOLAS PROT 1988).

Resolutions: A.123(V), A.654(16), A.752(18), A.756(18), A.800(19), A.830(19), A.855(20) and A.951(23);MSC.24(60), MSC.61(67), MSC.98(73), MSC.206(81), MSC.266(84) and MSC.269(85)

Circulars: MSC/Circ.353, MSC/Circ.387, MSC/Circ.451, MSC/Circ.485, MSC/Circ.553, MSC/Circ.582,MSC/Circ.582/Corr.1, MSC/Circ.606, MSC/Circ.608, MSC/Circ.670, MSC/Circ.677,MSC/Circ.730, MSC/Circ.731, MSC/Circ.732, MSC/Circ.777, MSC/Circ.798, MSC/Circ.808,MSC/Circ.848, MSC/Circ.849, MSC/Circ.850, MSC/Circ.858, MSC/Circ.909, MSC/Circ.910,MSC/Circ.913, MSC/Circ.917, MSC/Circ.917/Corr.1, MSC/Circ.965, MSC/Circ.1002,MSC/Circ.1003, MSC/Circ.1004, MSC/Circ.1005, MSC/Circ.1009, MSC/Circ.1027,MSC/Circ.1035, MSC/Circ.1036, MSC/Circ.1037, MSC/Circ.1050, MSC/Circ.1081,MSC/Circ.1082, MSC/Circ.1084, MSC/Circ.1085, MSC/Circ.1086, MSC/Circ.1087,MSC/Circ.1120, MSC/Circ.1129, MSC/Circ.1142, MSC/Circ.1146, MSC/Circ.1165,MSC/Circ.1167, MSC/Circ.1168, MSC/Circ.1214, MSC/Circ.1234, MSC/Circ.1272 andMSC/Circ.1276;MSC.1/Circ.1002/Corr.1, MSC.1/Circ.1203, MSC.1/Circ.1237, MSC.1/Circ.1241,MSC.1/Circ.1242, MSC.1/Circ.1267, MSC.1/Circ.1268, MSC.1/Circ.1269, MSC.1/Circ.1270,MSC.1/Circ.1271 and MSC.1/Circ.1275;SLS.14/Circ.17;BLG.1/Circ.23

International Association of Classification Societies (IACS)

Unified requirements (UR): F1(2002), F2(1999), F3(1971), F5(1973), F6(1996), F7(1999), F9(1971), F13(1977), F20(2005),F26(2004), F32(1976), F33(1981), F34(1989), F35(2005), F41(1993), F43(2002), F44(2008);M62(2002)

Unified Interpretations (UI): SC16(2006), SC17(2005), SC25(2005), SC32(2005), SC34(2005), SC35(2005), SC45(2005),SC46(2005), SC48(2005), SC49(2005), SC52(2005), SC54(2005), SC60(2005), SC61(2005),SC62(2005), SC63(2005), SC73(2005), SC85(2005), SC86(2005), SC87(2005), SC90(2005),SC91(2005), SC92(2005), SC97(2005), SC98(2005), SC101(2005), SC102(2005), SC103(2005),SC106(2005), SC108(2005), SC109(2005), SC114(2005), SC120(2006), SC121(2005),SC125(2005), SC126(2005), SC127(2005), SC128(2005), SC129(2005), SC130(2005),SC131(1998), SC132(2005), SC146(2005), SC147(2005), SC149(2005), SC150(2005),SC158(2005), SC159(2005), SC160(2005), SC162(2005), SC163(2005), SC164(2005),SC166(2005), SC168(2005), SC169(2003), SC170(2005), SC172(2005), SC174(2006),SC175(2003), SC176(2004), SC192(2004), SC196(2005), SC197(2006), SC198(2005),SC199(2005), SC200(2005), SC201(2006), SC204(2006), SC205(2006), SC211(2007),SC214(2006), SC217(2007), SC221(2007)

Recommendations (Rec.): 8(1981) and 53.2(1998)


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Contents:Page

1 GENERAL .............................................................................................................................................................11.1 APPLICATION .......................................................................................................................................................................... 11.2 DEFINITIONS AND EXPLANATIONS................................................................................................................................... 11.3 SCOPE OF SURVEY AND TECHNICAL DOCUMENTATION ............................................................................................ 41.4 FIRE CONTROL PLANS AND FIRE SAFETY INSTRUCTIONS.......................................................................................... 51.5 SUBDIVISION OF MATERIALS ACCORDING TO COMBUSTIBILITY, FLAME SPREAD AND IGNITABILITY........ 71.6 FIRE SAFETY OBJECTIVES AND FUNCTIONAL REQUIREMENTS ................................................................................ 71.7 ALTERNATIVE DESIGN AND ARRANGEMENTS .............................................................................................................. 8

2 STRUCTURAL INTEGRITY AND CONTAINMENT OF FIRE....................................................................92.1 GENERAL REQUIREMENTS .................................................................................................................................................. 92.2 PASSENGER SHIPS................................................................................................................................................................ 182.3 CARGO SHIPS ........................................................................................................................................................................ 322.4 TANKERS (≤60oC) .................................................................................................................................................................. 352.5 TANKERS (> 60oC) ................................................................................................................................................................. 412.6 SPECIAL PURPOSE SHIPS.................................................................................................................................................... 412.7 SHIPS CARRYING DANGEROUS GOODS.......................................................................................................................... 422.8 OIL RECOVERY SHIPS ......................................................................................................................................................... 51

3 FIRE-EXTINGUISHING SYSTEMS AND ARRANGEMENTS ...................................................................533.1 FIRE EXTINGUISHING ARRANGEMENTS ........................................................................................................................ 533.2 FIXED FIRE-EXTINGUISHING SYSTEMS.......................................................................................................................... 553.3 WATER FIRE MAIN SYSTEM .............................................................................................................................................. 583.4 AUTOMATIC SPRINKLER SYSTEM ................................................................................................................................... 633.5 PRESSURE WATER-SPRAYING SYSTEM.......................................................................................................................... 653.6 WATER-SCREEN SYSTEM................................................................................................................................................... 663.7 DRENCHING SYSTEM .......................................................................................................................................................... 663.8 FOAM SYSTEMS.................................................................................................................................................................... 663.9 CARBON DIOXIDE SYSTEMS ............................................................................................................................................. 693.10 INERT GAS SYSTEMS........................................................................................................................................................... 723.11 HALOGENATED HYDROCARBON SYSTEMS .................................................................................................................. 763.12 DRY POWDER SYSTEM ....................................................................................................................................................... 783.13 GAS FIRE-EXTINGUISHING SYSTEMS USING MEDIA OTHER THAN CARBON DIOXIDE...................................... 793.14 FIXED LOCAL APPLICATION FIRE-EXTINGUISHING SYSTEMS................................................................................. 823.15 PRESSURE TESTING OF FIRE-EXTINGUISHING SYSTEMS .......................................................................................... 82

4 FIRE DETECTION.............................................................................................................................................844.1 FIRE DETECTION AND FIRE ALARM ARRANGEMENTS............................................................................................... 844.2 FIRE DETECTION AND FIRE ALARM SYSTEMS ............................................................................................................. 854.3 PRE-DISCHARGE ALARM FOR FIXED GAS FIRE-EXTINGUISHING SYSTEMS......................................................... 884.4 FIRE ALARMS, PATROLS AND PUBLIC ADDRESS SYSTEMS ...................................................................................... 89

5 FIRE-EXTINGUISHING APPLIANCES, SPARE PARTS AND TOOLS....................................................905.1 FIRE-EXTINGUISHING APPLIANCES ................................................................................................................................ 905.2 SPARE PARTS AND TOOLS ................................................................................................................................................. 99

ANNEX 1 .......................................................................................................................................................................101MATERIALS USED IN ACCOMMODATION SPACES MSC/Circ. 1120...................................................................................... 101

ANNEX 2 .......................................................................................................................................................................104PETROLEUM PRODUCTS SUITABLE FOR CARRIAGE IN TANKERS (≤ 60oC) ...................................................................... 104

ANNEX 3 .......................................................................................................................................................................105LIQUID CARGOES (> 60oC)............................................................................................................................................................. 105

ANNEX 4 .......................................................................................................................................................................106NON COMBUSTIBLE AND LOW FIRE RISK CARGOES / CARGOES FOR WHICH A FIXED GAS FIRE-EXTINGUISHINGSYSTEM IS INEFFECTIVE .............................................................................................................................................................. 106


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ANNEX 5........................................................................................................................................................................108SYSTEMS, APPLIANCES AND EXTINGUISHERS IN MACHINERY SPACES ..........................................................................108

APPENDIX 1 .................................................................................................................................................................109FIRE SAFETY MEASURES FOR EXISTING PASSENGER SHIPS (Res. MSC.24(60))................................................................109

RULES FOR THE CLASSIFICATION OF SHIPS 1PART 17

2009

1 GENERAL

1.1 APPLICATION

1.1.1 The requirements of this Part of the Rules for theclassification of ships (hereinafter referred to as : the Rules),shall apply to ship's structural fire protection, fire-extinguishing systems and fire detection and fire alarm sys-tems as well as to fire-extinguishing appliances and tools onnew ships. Unless expressly provided otherwise, for the appli-cation of the present requirements to existing ships see Rules,Part 1 - General Requirements, 1.4.

1.1.2 In addition to the requirements specified in thisPart of the Rules and in order to define fire-integrity propertiesof materials and products as well as test procedures for theiracceptance, where applicable, the requirements of the FireTest Procedures Code (FTP Code) shall apply.

1.1.3 The fire protection requirements relating to themachinery and parts thereof, electrical equipment, pumpingand piping, fuel and lubrication oil tanks, boilers, refrigeratingplants etc. are set out in other relevant parts of the Rules.

1.1.4 Unless expressly provided otherwise the re-quirements of this Part of the Rules shall apply to passengerships intended for international voyages irrespective of sizeand to cargo ships of 500 gross tonnage and upwards.

The Administration may, if it considers that thesheltered nature and conditions of the voyage are such as torender the application of any specific requirements of this Partof the Rules unreasonable or unnecessary, exempt from thoserequirements individual ships or classes of ships which, in thecourse of their voyage, do not proceed more than 20 milesfrom the nearest land.

1.1.5 The application of the requirements of this Partof the Rules to:

.1 floating units; and

.2 technical floating units;is subject to special consideration by the Regis-

ter in each particular case.

1.2 DEFINITIONS ANDEXPLANATIONS

1.2.1 Definitions and explanations relating to the gen-eral terminology of the Rules are given in 1.4, Part 1 - Gen-eral Requirements.

For other definitions and explanations see otherrelevant Parts of the Rules.

1.2.2 For the purpose of this Part of the Rules the fol-lowing definitions are adopted:

.1 Accommodation spaces – those spacesused for public spaces, corridors, lavato-ries, cabins, offices, hospitals, cinemas,game and hobby rooms, barber shops,pantries containing no cooking appliancesand similar spaces.

.2 “A” class divisions – fire-resisting divi-sions as defined in 2.1.2.1.

.3 Atriums – public spaces within a singlemain vertical zone spanning three or moreopen decks.

.4 “B” class divisions – fire-resisting divi-sions as defined in 2.1.2.5.

.5 Cabin balcony – an open deck space whichis provided for the exclusive use of the oc-cupants of a single cabin and has direct ac-cess from such a cabin.

.6 Cargo area – that part of the ship thatcontains, cargo tanks, slop tanks and cargopump-rooms including pump-rooms, cof-ferdams, ballast and void spaces adjacentto cargo tanks and also deck areasthroughout the entire length and breadth ofthe part of the ship over the afore-mentioned spaces.

.7 Cargo spaces – spaces used for cargo suchas ro-ro spaces, vehicle spaces, containerspaces, general cargo, bulk cargo and re-frigerated cargo spaces and similar, cargotanks for liquids other than oil cargo andtrunks to such spaces.

.8 Central control station – a control stationin which the following control and indi-cator functions are centralized:.1 fixed fire detection and fire alarm sys-

tems;.2 automatic sprinkler, fire detection and

fire alarm systems;.3 fire door indicator panels;.4 fire door closure;.5 watertight door indicator panels;.6 watertight door closures;.7 ventilation fans;.8 general/fire alarms;.9 communication system including tele-

phones; and.10 microphones to public address sys-

tems..9 “C” class divisions – fire-resisting divi-

sions as defined in 2.1.2.9..10 Closed ro-ro spaces – ro-ro spaces which

are neither open ro-ro spaces nor weatherdecks.

.11 Closed vehicle spaces – vehicle spaceswhich are neither open vehicle spaces norweather decks.

.12 Continuous “B” class ceilings or linings –those “B” class ceilings or linings whichterminate at an “A” or “B” class division.

.13 Continuously manned central control sta-tion – a central control station which iscontinuously manned by a responsiblemember of the crew.

.14 Control stations – those spaces in whichthe ship’s radio or main navigating equip-ment or the emergency source of power islocated or where the fire recording or firecontrol equipment is centralized. Spaceswhere the fire recording or fire controlequipment is centralized are also consid-ered to be a fire control station.

2 RULES FOR THE CLASSIFICATION OF SHIPSPART 17

2009

Safety center dedicated to the managementof emergency situations.Control room for propulsion machinerywhen located outside the machineryspaces.Spaces in which the following batterysources regardless of battery capacity arelocated:.1 emergency batteries for power supply

from blackout till start of emergencygenerator;

.2 emergency batteries as reserve sourceof energy to radiotelegraph installa-tion;

.3 batteries for start of emergency gen-erator; and

.4 in general, all emergency batteries re-quired in Chapter 9, Part 12. – Electri-cal Equipment.

.15 Crude oil – any oil occurring naturally inthe earth, whether or not treated to renderit suitable for transportation, and includescrude oil where certain distillate fractionsmay have been removed from or added to.

.16 Dangerous goods – for transport by sea,substances, materials and articles as speci-fied and classified in the IMDG Code andcarried in packaged form or in solid formin bulk. Dangerous goods are subdividedinto the following classes:Class 1: Explosives (divisions 1.1, 1.2,

1.3, 1.4, 1.5 and 1.6);Class 2: Gasses compressed, liquefied

or disolved under pressure (2.1flammable; 2.2 non-flammable, non-toxic; 2.3toxic);

Class 3: Flammable liquids (3.1 and 3.2: < 23°C; 3.3 : > 23°C to <61°C);

Class 4: Flammable solids (4.1), sub-stances liable to spontaneouscombustion (4.2), and substanceswhich in contact with water,emit flammable gases (4.3);

Class 5: Oxidizing substances (5.1) andorganic peroxides (5.2);

Class 6: Toxic substances (6.1) and in-fectious substances (6.2);

Class 7: Radioactive materials;Class 8: Corrosives;Class 9: Miscellaneous dangerous sub-

stances and articles (for whichexperience has shown, or mayshow, to be of such a dangerouscharacter that the requirementsof this part of the Rules shall ap-ply to it).

.17 Explosives of division 1.4, compatibilitygroup S - substances and articles whichpresent no significant hazard and whichare so packaged or designed that any haz-ardous effects arising from accidental

functioning are confined within the pack-age.

.18 Fire Safety Systems Code – the Interna-tional Code for Fire Safety Systems asadopted by resolution MSC.98(73), as maybe amended (FSS Code).

.19 Fire Test Procedures Code – the Interna-tional Code for Application of Fire TestProcedures as adopted by resolutionMSC.61(67), as may be amended (FTPCode).

.20 Flashpoint – the temperature in degreesCelsius (closed cup test) at which a prod-uct will give off enough flammable vapourto be ignited, as determined by an ap-proved flashpoint apparatus.

.21 Helideck – a purpose-built helicopterlanding area located on a ship including allstructure, fire-fighting appliances andother equipment necessary for the safe op-eration of helicopters.

.22 Helicopter facility – a helideck includingany refuelling and hangar facilities.

.23 Low flame-spread – means that the surfacethus described will adequately restrict thespread of flame (see 1.5.3).

.24 Machinery spaces – machinery spaces ofcategory A and other spaces containingpropulsion machinery, boilers, oil fuelunits, steam and internal combustion en-gines, generators and major electrical ma-chinery, oil filling stations, refrigerating,stabilizing, ventilation and air conditioningmachinery, and similar spaces, and trunksto such spaces.

.25 Machinery spaces of category A – thosespaces and trunks to such spaces whichcontain either:.1 internal combustion machinery used

for main propulsion;.2 internal combustion machinery used

for purposes other than main propul-sion where such machinery has in theaggregate a total power output of notless than 375 kW; or

.3 any oil-fired boiler or oil fuel unit, orany oil-fired equipment other thanboilers, such as inert gas generators,incinerators, etc.

.26 Main vertical zones – those sections intowhich the hull, superstructure and deck-houses are divided by A” class divisions,the mean length and width of which onany deck does not in general exceed 40 m.

.27 Non-combustible materials – materialswhich comply with the requirements speci-fied in 1.5.1.1 (see also SLS.14/Circ.17).

.28 Oil fuel unit – any equipment used for thepreparation and delivery of oil fuel, heatedor not, to boilers (including inert gas gen-erators) and engines (including gas tur-bines) at a pressure of more than 0.18N/mm2. Oil fuel transfer pumps are not


2009

considered as oil fuel units (seeMSC.1/Circ. 1203).

.29 Open ro-ro spaces – those ro-ro spaceswhich are either open at both ends or havean opening at one end, and are providedwith adequate natural ventilation effectiveover their entire length through permanentopenings distributed in the side plating ordeckhead or from above, having a totalarea of at least 10% of the total area of thespace sides.

.30 Open vehicle spaces – those vehicle spaceswhich are either open at both ends or havean opening at one end and are providedwith adequate natural ventilation effectiveover their entire length through permanentopenings distributed in the side plating ordeckhead or from above, having a totalarea of at least 10% of the total area of thespace sides.

.31 Prescriptive requirements – the construc-tion characteristics, limiting dimensions,or fire safety systems specified in Chapter2, 3, 4 or 5.

.32 Public spaces – those portions of the ac-commodation which are used for halls,dining rooms, lounges and similar perma-nently enclosed spaces.

.33 Rooms containing furniture and furnish-ings of restricted fire risk – for the purposeof 2.2.4.2, those rooms containing furni-ture and furniture and furnishings of re-stricted fire risk (whether cabins, publicspaces, offices or other types of accommo-dation) in which:.1 case furniture such as desks, ward-

robes, dressing tables, bureaux, ordressers are constructed entirely of ap-proved non-combustible materials, ex-cept that a combustible veneer not ex-ceeding 2 mm may be used on theworking surface of such articles;

.2 free-standing furniture such as chairs,sofas, or tables are constructed withframes of non-combustible materials;

.3 draperies, curtains and other sus-pended textile materials have qualitiesof the restricted fire risk (see 1.5.5);

.4 floor coverings have low flame-spreadcharacteristics;

.5 exposed surfaces of bulkheads, liningsand ceilings have low flame-spreadcharacteristics;

.6 upholstered furniture has qualities ofthe restricted fire risk (see 1.5.7).

.7 bedding components have qualities ofthe restricted fire risk (see 1.5.6).

.34 Ro-ro spaces – cargo spaces not normallysubdivided in any way and normally ex-tending to either a substantial length or theentire length of the ship in which motorvehicles with fuel in their tanks for theirown propulsion and/or goods (packaged orin bulk, in or on rail or road cars, vehicles)

(including road or rail tankers), trailers,containers, pallets, demountable tanks orin or on similar stowage units or other re-ceptacles) can be loaded and unloadednormally in a horizontal direction.

.35 Ro-ro passenger ship – a passenger shipwith ro-ro spaces or special categoryspaces.

.36 Steel or other equivalent material – anynon-combustible material which, by itselfor due to insulation provided, has struc-tural and integrity properties equivalent tosteel at the end of the applicable exposureto the standard fire test (e.g., aluminiumalloy with appropriate insulation).

.37 Sauna – a hot room with temperaturesnormally varying between 80°C and120°C where the heat is provided by a hotsurface (e.g., by an electrically heatedoven). The hot room may also include thespace where the oven is located and adja-cent bathrooms.

.38 Safe area – in the context of a casualty andfrom the perspective of habitability, anyarea(s) which is not flooded or which isoutside the main vertical zone(s) in whicha fire has occurred such that it can safelyaccommodate all persons onboard to pro-tect them from hazards to life or health andprovide them with basic services.

.39 Safety centre – a control station dedicatedto the management of emergency situa-tions. Safety systems’ operation, controland/or monitoring are an integral part ofthe safety centre.

.40 Service spaces – spaces used for galleys,pantries containing cooking appliances,lockers, mail and specie rooms, store-rooms, work-shops other than those form-ing part of the machinery spaces, andsimilar spaces and trunks to such spaces.

.41 Special category spaces – enclosed vehiclespaces above and below the bulkheaddeck, into and from which vehicles can bedriven and to which passengers have ac-cess. Special category spaces may be ac-commodated on more than one deck pro-vided that the total overall clear height forvehicles does not exceed 10 m.

.42 Standard fire test – a test in which speci-mens of the relevant bulkheads or decksare exposed in a test furnace to tempera-tures corresponding approximately to thestandard time-temperature curve in accor-dance with the test method specified in theFTP Code.

.43 Tanker – a cargo ship constructed oradapted for the carriage in bulk of liquidcargoes of an inflammable nature.

.44 Vehicle spaces – cargo spaces intended forcarriage of motor vehicles with fuel intheir tanks for their own propulsion.


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.45 Weather deck – a deck which is com-pletely exposed to the weather from aboveand from at least two sides.

1.2.3 For the purpose of this Part of the Rules the fol-lowing explanations are given:

.1 Adjacent spaces – those spaces separatedfrom one another by a bulkhead, deck,platform or any other structural divisionhaving no openings, or having the open-ings with permanently fitted closing appli-ances. The term does not include corner tocorner spaces or compartments:

.2 Cargo pump-rooms – pump-rooms con-taining pumps including cargo pumps,stripping pumps, slop tank pumps, pumpsfor crude oil washing or similar pumps,and their accessories for the handling ofcargo in tankers and combination carriers(< 60°C).

.3 Cofferdam – an isolating space betweentwo adjacent steel bulkheads or decks.This space may be a void space or a ballasttank.

.4 Fire stations – posts and/or rooms whereitems of fire-extinguishing systems such assection and isolation valves, fire hydrantsand fire hoses, remote controls etc., andfire-extinguishing appliances are located.

.5 Foam expansion ratio – the ratio of thevolume of foam produced to the volume ofthe mixture of water and foam-makingconcentrate supplied.

.6 Lower flammable limit – the lowest con-tent (by volume) of the flammable sub-stance which when mixed with air is capa-ble of igniting at an open flame and sustainfire of the mixture (and spread of flame onthe mixture).

.7 MHB – solid materials hazardous whencarried in bulk (see IMSBC Code).

.8 Primary deck covering – all deck cover-ings which are laid directly upon a steeldeck plate and beneath a surface material,if applied, of the floor. However, thinfilms such as paints may be exemptedfrom consideration (see FTP Code).

.9 Protected spaces – spaces provided with afixed fire-extinguishing system and/orwith a fixed fire detection and fire alarmsystem.

.10 Rated volume of a protected space – thegross volume of a space bounded by wa-tertight or gastight bulkheads and deckswithout any deduction for the volume oc-cupied by equipment, machinery, struc-tural items, tanks, cargo, etc.

.11 Slop tank – a tank specifically designatedfor collection of cargo leakages, tankdrainings, tank washings and other oilymixtures.

.12 Smothering – filling of a protected spacewith a medium not supporting combustion.

.13 Structural fire protection – a complex ofthe passive means of fire protection in-tended for:.1 prevention of generation of fire;.2 containment of fire and smoke

spreading throughout the ship;.3 creation of conditions for safe evacua-

tion of persons from the ship’s spacesand from the ship, as well as for ef-fective extinction of the fire.

.14 Surface extinction – cooling, wetting orprecluding presence of oxygen to burningsurfaces.

.15 System equivalent to a fixed deck foamsystem – a system capable of extinguishingspill fires and also preclude ignition ofspilled oil not yet ignited, and capable ofcombating fires in ruptured tanks.

.16 System equivalent to a fixed inert gas sys-tem – a system capable of preventing dan-gerous accumulations of explosive mix-tures in intact cargo tanks during normalservice, throughout the ballast voyage andnecessary in-tank operations, and so de-signed as to minimize the risk of ignitionfrom the generation of static electricity bythe system itself.

.17 Water drenching systems – systems whichsupply vertical or horizontal ship’s struc-tures with water.

.18 Water-screen systems – systems whichcreate a water barrier in the form of suffi-ciently thick curtain of water fed throughspray nozzles. Such systems may be fittedwhere the use of fire-resisting division isnot practicable.

1.3 SCOPE OF SURVEY ANDTECHNICAL DOCUMENTATION

1.3.1 General requirements for supervision of shipduring construction as well as the requirements for the docu-mentation to be submitted to the Register for considerationand approval are specified in Rules, Part 1 - General Re-quirements, 2.1.

1.3.2 Subject to supervision by the Register duringconstruction of a ship are: structural fire protection, materialsused for the interior finishing of ship's spaces with regards totheir fire hazardous properties, fire-extinguishing systems, firedetection and fire alarm systems as well as fire-extinguishingappliances, tools and spare parts specified in this Part of theRules.

1.3.3 Subject to supervision by the Register duringmanufacture are:

.1 constructions and products intended forstructural fire protection (division bulk-heads, linings, ceilings, insulation, doors,windows and scuttles);

.2 materials and products intended for surfacefinish and furnishing of ship's spaces (ve-neers, floor coverings, textile and similarmaterials for upholstery and curtains);


2009

.3 materials for primary deck coverings;

.4 items and parts of fire-extinguishing sys-tems: hydrants, fire hoses, couplings, firehose nozzles, sprinklers, spray nozzles,foam proportionators, generators, moni-tors, foam nozzles and foam concentratetanks, inert gas generators, scrubbers andwater seals, (see also other relevant Partsof the Rules);

.5 fire-extinguishing appliances and tools:fire extinguishers, fireman's outfit, foamconcentrate, etc.

1.3.4 The following plans and particulars shall besubmitted to the Register for approval of newly applied activefire means intended for fire extinguishing and passive meansof structural fire protection:

.1 copies of Type Approval Certificates (ifavailable), test reports and other essentialdocuments on fire tests run by recognizedinstitutions, confirming compliance of afire extinguishing medium with the ac-ceptable standards on a composition andapplication rates, and including informa-tion on storage life and conditions;

.2 copies of Type Approval Certificates (ifavailable) test reports and other essentialdocuments on the fire tests of "A" and "B"class fire divisions including openings andtheir means of closure for such divisions(including "A" and "B" class doors);

.3 drawings of "A" and "B" class divisionsincluding details of any joints, where ap-propriate;

.4 data on the combustibility of the materialsand relevant documents confirming thatappropriate tests of the materials con-cerned were carried out.

.5 drawings and calculations of the particularequipment of the fire-extinguishing, firedetection and fire alarm systems;

.6 drawings showing plans and componentsof ventilation systems for accommodationspaces, control stations, service spaces,workshops, cargo spaces and machineryspaces, essential for fire safety of the ship.

1.4 FIRE CONTROL PLANS AND FIRESAFETY INSTRUCTIONS

1.4.1 In all ships, at the central fire station, wheel-house and in conspicuous positions in corridors and lobbies,there shall be permanently exhibited General arrangementplans for the guidance of the ship’s officers showing clearlyfor each deck the following:

.1 location of control stations;

.2 location of fire-resisting divisions;

.3 spaces protected by fire detection and firealarm systems;

.4 spaces protected by fixed fire-extinguishing systems, with the indicatedlocations of the system starting controls;

.5 means of access to different compart-ments, decks etc. with the indication ofmeans of escape, corridors and doors;

.6 the ventilating systems including particu-lars of the fan control positions, the posi-tion of dampers and identification numbersof the ventilating fans serving each sec-tion;

.7 disposition of fire hydrants, fire-extinguishing appliances, spare parts andtools;

.8 position where instructions specified in1.4.3 are kept.

1.4.2 Alternatively, the details described in 1.4.1 maybe set out in a booklet, a copy of which shall be supplied toeach officer, and one copy shall at all times be available onboard in an accessible position.

Descriptions in such plans and booklets shall bein the English and/or in the official language of the Admini-stration.

Graphical symbols for fire control plans shall becolour painted and shall comply with resolution A.952(23), asamended (see ISO 17631:2002).

Ships constructed before 1 January 2004 maycontinue to use the resolution A.654(16) (seeMSC/Circ.1050).

The originator of such plans, including plans,manuals and booklets referred to in 1.4.6, 1.4.9 and 1.4.10,shall ensure that the IMO ship identification number is markedon them prior to submission for approval (seeMSC/Circ.1142).

1.4.3 In all ships, other than cargo ships of less than500 gross tonnage, a duplicate set of fire control plans or abooklet containing such plans (see 1.4.1 and 1.4.2) shall bepermanently stored in a red painted weathertight enclosureoutside the deckhouse for the assistance of shoreside fire-fighting personnel (see MSC/Circ 451).

The position shall be marked with a sign asshown in Figure 1.4.3-1, be easy accessible and well illumi-nated.

Figure 1.4.3-1


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In tankers, combination carriers, chemical tank-ers and liquefied gas carriers this position shall be neither onthe superstructure wall facing cargo area nor on the side wallswithin the distance 3 m from it.

If this position is not in a close vicinity of placeof boarding the ship (near accommodation ladder) the signs asshown in Figure 1.4.3-2 shall be exhibited showing the way tosuch position.

Figure 1.4.3-2The signs shall have dimensions of not less than

400 mm x 300 mm.

1.4.4 Plans and booklets specified in 1.4.1 and 1.4.2shall be kept up to date, any alterations being recorded thereonas soon as practicable.

1.4.5 In passenger ships carrying more than 36 pas-sengers plans and booklets specified in 1.4.1 and 1.4.2 shallprovide the information regarding fire protection, fire detec-tion and fire extinction based on the guidelines developed bythe International Maritime Organization (resolutionA.756(18)).

1.4.6 The maintenance plan based on the Guidelineson maintenance and inspection of fire protection systems andappliances (see MSC/Circ. 850) shall be kept on board thepassenger ships and cargo ships of 500 gross tonnage and up-wards and shall include at least the following, where installed:

.1 fire mains, fire pumps and hydrants in-cluding hoses, nozzles and internationalshore connections;

.2 fixed fire detection and fire alarm systems;

.3 fixed fire-extinguishing systems and otherfire extinguishing appliances;

.4 automatic sprinkler, fire detection and firealarm systems;

.5 ventilation systems including fire andsmoke dampers, fans and their controls;

.6 emergency shut down of fuel supply;

.7 fire doors including their controls;

.8 general emergency alarm systems;

.9 emergency escape breathing devices;

.10 portable fire extinguishers including sparecharges; and

.11 fire-fighter's outfits.

1.4.7 In addition to the fire protection systems and ap-pliances listed in 1.4.6, passenger ships carrying more than 36passengers shall develop a maintenance plan for low-locationlighting (see 19.1.3, Part 12 – Electrical Equipment) and pub-lic address systems.

1.4.8 In addition to the fire protection systems and ap-pliances listed in 1.4.6 tankers and combination carriers shalldevelop a maintenance plan for (as applicable):

.1 inert gas systems;

.2 deck foam systems;

.3 fire safety arrangements in cargo pumprooms; and

.4 flammable gas detectors.

1.4.9 Passenger ships and cargo ships of 500 grosstonnage and upwards shall be provided with a training manual,which shall be written in the working language of the ship,and located in each crew mess room and recreation room or ineach crew cabin.

The training manual shall contain the instruc-tions and information in easily understood terms and illus-trated wherever possible. Any part of such information may beprovided in the form of audio-visual aids in lieu of the manual.

The training manual shall explain the followingin detail:

.1 general fire safety practice and precautionsrelated to the dangers of smoking, electri-cal hazards, flammable liquids and similarcommon shipboard hazards;

.2 general instructions on fire-fighting activi-ties and fire-fighting procedures, includingprocedures for notification of a fire anduse of manually operated call points;

.3 meanings of the ship’s alarms;

.4 operation and use of fire-fighting systemsand appliances;

.5 operation and use of fire doors;

.6 operation and use of fire and smoke damp-ers; and

.7 escape systems and appliances.

1.4.10 Passenger ships and cargo ships of 500 grosstonnage and upwards shall be provided with a fire safety op-erational booklet, which shall be written in the working lan-guage of the ship and located in each crew mess room and rec-reation room or in each crew cabin.

The fire safety operational booklet shall containthe necessary information and instructions for the safe opera-tion of the ship and cargo handling operations in relation tofire safety. The booklet shall include information concerningthe crew’s responsibilities for the general fire safety of theship while loading and discharging cargo and while underway. Necessary fire safety precautions for handling generalcargoes shall be explained. For ships carrying dangerousgoods and flammable bulk cargoes, the fire safety operationalbooklet shall also provide reference to the pertinent fire-fighting and emergency cargo handling instructions containedin the International Maritime Solid Bulk Cargoes Code(IMSBC Code), the International Bulk Chemical Code (IBCCode), the International Gas Carrier Code (IGC Code) and theInternational Maritime Dangerous Goods Code (IMDG Code),as appropriate.

The fire safety operational booklet may be com-bined with the training manuals required in 1.4.9.

1.4.11 In addition to specified in 1.4.10, the fire safetyoperational booklet intended for tankers (< 60°C) shall includerequirements for preventing fire spread to the cargo area dueto ignition of flammable vapours and include procedures of


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cargo tanks gas-purging and/or gas-freeing, taking into ac-count the requirements specified in Rules, Part 8 – Piping, 5.2(see 2.4.9.1.6).

1.4.12 When a hot work is planned on board the princi-ples for hot work on board all types of ships shall be includedin the fire safety operational booklet and followed (seeMSC/Circ.1084).

1.5 SUBDIVISION OF MATERIALSACCORDING TO COMBUSTIBILITY,FLAME SPREAD AND IGNITABILITY

1.5.1 Marine construction materials shall be tested inaccordance with the test methods specified in the FTP Codeand, according to test results obtained, subdivied as follows:

.1 Non-combustible materials - materialswhich, when heated to approximately 750oC, neither burn nor give off flammablevapours in sufficient quantity for self-ignition and satisfy all other criteria in theprocess of testing;

.2 Combustible materials - materials otherthan those specified in .1 above.

1.5.2 The non combustibility test need not be carriedout for the following materials which may be considered natu-rally non combustible:

.1 glass, concrete, ceramic products, naturalstone masonry units, common metals andmetal alloys;

.2 close or expanded building materials ofmetallic oxide base (calcium oxide, mag-nesium oxide, silicium oxide, aluminiumoxide and other oxides) or inorganic com-pounds (calcium carbonate, calcium sol-phate, calcium silicate and others) withoutorganic binders;

.3 insulating material of mineral (rock, glass,ceramic and others) fibres without organicbinders;

.4 materials, with or without inorganic mate-rial finish.

1.5.3 Bulkhead and deck finish materials shall betested for the flammability in accordance with the test methodsspecified in the FTP Code and according to test results ob-tained are subdivided as follows:

.1 Materials having low flame spread char-acteristics - materials which adequately re-strict the spread of flame over the surface;

.2 Materials having high flame spread char-acteristics - materials other than thosespecified in .1 above.

1.5.4 Primary deck coverings shall be tested for theignitability in accordance with the test methods specified inthe FTP Code and according to the test results obtained aresubdivided as follows:

.1 Not readily ignitable deck coverings -materials which not readily ignite or giverise to toxic or explosive hazards at ele-vated temperatures;

.2 Readily ignitable deck coverings - materi-als other than those specified in .1 above.

1.5.5 Textile materials used for manufacture of dra-piries, curtains, and other similar suspended articles shall betested for the resistance to the propagation of flame in accor-dance with the test methods specified in the FTP Code and ac-cording to the test results obtained are subdivided as follows:

.1 Textile materials of restricted fire risk -materials having qualities of resistance tothe propagation of flame not inferior tothose of wool of mass 0.8 kg/m2;

.2 Textile materials of high fire risk - materi-als other than those specified in .1 above.

1.5.6 Bedding components such as blankets, bed-spreads, pillows and mattresses and similar shall be tested forthe resistance to the ignition and propagation of flame in ac-cordance with the test methods specified in the FTP Code andaccording to test results obtained are subdivided as follows:

.1 Bedding components of restricted fire risk- components having required qualities ofresistance to the ignition and propagationof flame;

.2 Bedding components of high fire risk -components other than those specified in.1 above.

1.5.7 Upholstered furniture shall be tested for the ig-nition and propagation of flame in accordance with the testmethods specified in the FTP Code and according to the testresults obtained are subdivided as follows:

.1 Upholstered furniture of restricted fire risk- furniture having required qualities of re-sistance to the ignition and propagation offlame;

.2 Readily ignitable upholstered furniture -furniture other than those specified in .1above.

1.6 FIRE SAFETY OBJECTIVES ANDFUNCTIONAL REQUIREMENTS

1.6.1 Fire safety objectives

1.6.1.1 The fire safety objectives of this Part of theRules are to:

.1 prevent the occurrence of fire and explo-sion;

.2 reduce the risk to life caused by fire;

.3 reduce the risk of damage caused by fire tothe ship, its cargo and the environment;

.4 contain, control and suppress fire and ex-plosion in the compartment of origin; and

.5 provide adequate and readily accessiblemeans of escape for passengers and crew.

1.6.2 Functional requirements

1.6.2.1 In order to achieve the fire safety objectives setout in 1.6.1, the following functional requirements are em-bodied in the regulations of this Part of the Rules as appropri-ate:

.1 division of the ship into main vertical andhorizontal zones by thermal and structuralboundaries;


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.2 separation of accommodation spaces fromthe remainder of the ships by thermal andstructural boundaries;

.3 restricted use of combustible materials;

.4 detection of any fire in the zone of origin;

.5 containment and extinction of any fire inthe space of origin;

.6 protection of means of escape and accessfor fire fighting;

.7 ready availability of fire-extinguishing ap-pliances; and

.8 minimization of possibility of ignition offlammable cargo vapour.

1.6.3 Achievement of the fire safety objectives

1.6.3.1 The fire safety objectives set out in 1.6.1 shall beachieved by ensuring compliance with the prescriptive re-quirements specified in Chapter 2, 3, 4 or 5, or by alternativedesign and arrangements which comply with 1.7. A ship shallbe considered to meet the functional requirements set out in1.6.2 and to achieve the fire safety objectives set out in 1.6.1when either:

.1 the ship’s design and arrangements, as awhole, comply with the relevant prescrip-tive requirements in Chapter 2, 3, 4 or 5;

.2 the ship’s design and arrangements, as awhole, have been reviewed and approvedin accordance with 1.7; or

.3 part(s) of the ship’s design and arrange-ments have been reviewed and approved inaccordance with 1.7 and the remainingparts of the ship comply with the relevantprescriptive requirements in Chapter 2, 3,4 or 5.

1.7 ALTERNATIVE DESIGN ANDARRANGEMENTS

1.7.1 General

1.7.1.1 Fire safety design and arrangements may deviatefrom the prescriptive requirements set out in Chapter 2, 3, 4 or5, provided that the design and arrangements meet the firesafety objectives and the functional requirements.

1.7.1.2 When fire safety design or arrangements deviatefrom the prescriptive requirements of this Part of the Rules,engineering analysis, evaluation and approval of the alterna-tive design and arrangements shall be carried out in accor-dance with this regulation.

1.7.2 Engineering analysis

1.7.2.1 The engineering analysis shall be prepared andsubmitted to the Register, based on the guidelines adopted bythe Register (see MSC.1/Circ.1002/Corr.1 andMSC/Circ.1002) and shall include, as a minimum, the fol-lowing elements:

.1 determination of the ship type and space(s)concerned;

.2 identification of prescriptive require-ment(s) with which the ship or the space(s)will not comply;

.3 identification of the fire and explosionhazards of the ship or the space(s) con-cerned, including:.3.1 identification of the possible ignition

sources;.3.2 identification of the fire growth po-

tential of each space concerned;.3.3 identification of the smoke and toxic

effluent generation potential for eachspace concerned;

.3.4 identification of the potential for thespread of fire, smoke or of toxic ef-fluents from the space(s) concernedto other spaces;

.4 determination of the required fire safetyperformance criteria for the ships or thespace(s) concerned addressed by the pre-scriptive requirement(s), in particular:.4.1 performance criteria shall be based

on the fire safety objectives and onthe functional requirement of thischapter;

.4.2 performance criteria shall provide adegree of safety not less than thatachieved by using the prescriptiverequirements; and

.4.3 performance criteria shall be quanti-fiable and measurable;

.5 detailed description of the alternative de-sign and arrangements, including a list ofthe assumption used in the design and anyproposed operational restrictions or condi-tions; and

.6 technical justification demonstrating thatthe alternative design and arrangementsmeet the required fire safety performancecriteria.

1.7.3 Evaluation of the alternative design andarrangements

1.7.3.1 The engineering analysis required in 1.7.1.2shall be evaluated and approved by the Register taking intoaccount the guidelines adopted by the Register.

1.7.3.2 A copy of the documentation, as approved bythe Register indicating that the alternative design and ar-rangements comply with this regulation shall be carried onboard the ship.

1.7.4 Re-evaluation due to change ofconditions

1.7.4.1 If the assumptions, and operational restrictionsthat were stipulated in the alternative design and arrangementsare changed, the engineering analysis shall be carried out un-der the changed condition and shall be approved by the Reg-ister.


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2 STRUCTURAL INTEGRITYAND CONTAINMENT OF FIRE

2.1 GENERAL REQUIREMENTS

2.1.1 Requirements for materials

2.1.1.1 The hull, superstructures, structural bulkheads,decks and deckhouses shall be constructed of steel or otherequivalent material.

Where material equivalent to steel is used (see1.2.2.37) the “applicable fire exposure” shall be according tothe required integrity and insulation standards as indicated inthe applicable fire integrity tables.

2.1.1.2 Unless otherwise specified in 2.1.1.1, in caseswhere any part of the structures is of aluminium alloy, thefollowing shall apply:

.1 the insulation of aluminium alloy compo-nents of load-bearing “A” or “B” class di-visions shall be such that the temperatureof the structural core does not rise morethan 200°C above the ambient temperatureat any time during the applicable fire ex-posure to the standard fire test;

.2 columns, stanchions and other structuralmembers required to support lifeboat andliferaft stowage, launching and embarka-tion areas and “A” class divisions shallcomply with the temperature rise limita-tion specified in paragraph .1 above at theend of one hour, and for such members re-quired to support “B” class divisions thetemperature rise limitation shall apply atthe end of half an hour; and

.3 in cargo ships of less than 500 gross ton-nage, the temperature rise limitation re-quired in paragraphs .1 and .2 above mayapply at the end of half an hour.

2.1.1.3 Composite materials my be accepted by theRegister to be used for construction of “A” or “B” class divi-sions of superstructures, structural bulkheads except for thosein contact with liquids, decks and deckhouses of ships, asequivalent to steel, if they meet criteria specified inMSC/Circ.732.

2.1.1.4 “Light-weight constructions” (honeycomb type,etc.) of steel or equivalent material may be used as non load-bearing internal “A” class division in accommodation andservice spaces provided they have successfully passed therelevant standard fire test according to the FTP Code.

These “light-weight constructions” shall not beused as an integral part of main fire zone bulkheads and stair-way enclosures on passenger ships (see MSC/Circ.1005 andMSC/Circ.1120).

2.1.1.5 Crowns, casings and skylights of machineryspaces of category A shall be of steel construction and shall beinsulated as required in the applicable fire integrity tables.

2.1.1.6 Neither combustible nor oil-absorbing materialsshall be used as flooring, bulkhead lining, ceiling or decks inthe propulsion machinery control room, machinery spaces,shaft tunnel or rooms where oil tanks are located.

2.1.1.7 The floor plating of normal passageways in ma-chinery spaces of category A shall be made of steel.

2.1.1.8 Insulating materials shall be non-combustible,except in cargo spaces, mail rooms, baggage rooms and refrig-erated compartments of service spaces.

In spaces where penetration of oil products ispossible the surface of insulation shall be impervious to oil oroil vapours.

2.1.1.9 Vapour barriers and adhesives used in conjunc-tion with insulation, as well as the insulation of pipe fittingsfor cold service systems, need not be of non-combustible ma-terials, but they shall be kept to the minimum quantity practi-cable and their exposed surfaces shall have low flame-spreadcharacteristics.

2.1.1.10 Primary deck coverings, if applied within ac-commodation and service spaces and control stations, shall beof approved material which will not readily ignite or give riseto smoke and toxic or explosive hazards at elevated tempera-tures, this being determined in accordance with the FTP Code(see Annex 1).

In passenger ships, primary deck coverings oncabin balconies shall not give rise to smoke, toxic or explosivehazards at elevated temperatures, this being determined in ac-cordance with the FTP Code.

2.1.1.11 Paints, varnishes and other finishes used on ex-posed interior surfaces in accommodation and service spacesand control stations shall not be capable of producing exces-sive quantities of smoke and toxic products, this being deter-mined in accordance with the FTP Code (see Annex 1).

In passenger ships, paints, varnishes and otherfinishes used on exposed surfaces of cabin balconies, exclud-ing natural hard wood decking systems, shall not be capable ofproducing excessive quantities of smoke and toxic products,this being determined in accordance with the FTP Code.

2.1.1.12 In passenger ships, furniture and furnishings oncabin balconies shall comply with requirements in 1.2.2.33.1to 1.2.2.33.3, 1.2.2.33.6 and 1.2.2.33.7 unless such balconiesare protected by a fixed pressure water-spraying and fixed firedetection and fire alarm systems complying with guidelinesspecified in MSC.1/Circ.1268 (see 4.1.1.3.2).

2.1.1.13 In passenger ships, except in cargo spaces, alllinings, grounds, draught stops and ceilings shall be of non-combustible material except in mail rooms, baggage rooms,saunas or refrigerated compartments of service spaces (seeAnnex 1).

2.1.1.14 In passenger ships “A”, “B” or “C” class divi-sions in accommodation and service spaces and cabin balco-nies which are faced with combustible materials, facings,mouldings, decorations and veneers shall comply with the re-quirements specified in 2.1.1.11 and 2.1.1.19 to 2.1.1.21.However, traditional wooden benches and wooden linings onbulkheads and ceilings are permitted in saunas and such mate-rials need not be subject to the calculations prescribed in2.1.1.19 and 2.1.1.20. However, the requirements in 2.1.1.20need not be applied to cabin balconies.


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2.1.1.15 In passenger ships:.1 partial bulkheads or decks used to subdi-

vide a space for utility or artistic treatmentshall be of non-combustible materials; and

.2 linings, ceilings and partial bulkheads ordecks used to screen or to separate adja-cent cabin balconies shall be of non-combustible materials.

2.1.1.16 In cargo ships of 500 gross tonnage and up-wards, all linings, ceilings, draught stops and their associatedgrounds shall be of non-combustible materials in the followingspaces (see Annex 1):

.1 in accommodation and service spaces andcontrol stations for ships where method ICis adopted (see 2.3.1.2.1); and

.2 in corridors and stairway enclosures serv-ing accommodation and service spaces andcontrol stations for ships where methodsIIC or IIIC are adopted (see 2.3.1.2.2 and2.3.1.2.3).

2.1.1.17 In cargo ships of less than 500 gross tonnage butnot less than 300, in corridors and stairways enclosures serv-ing accommodation and service spaces and control stations, alllinings, ceilings, draught stops and their associated groundsshall be of non-combustible materials.

2.1.1.18 In cargo ships of 500 gross tonnage and up-wards, non-combustible bulkheads, ceilings and linings fittedin accommodation and service spaces may be faced with com-bustible materials, facings, mouldings, decorations and ve-neers provided such spaces are bounded by non-combustiblebulkheads ceilings and linings in accordance with the re-quirements specified in 2.1.1.11 and 2.1.1.19 to 2.1.1.21.

2.1.1.19 Combustible materials used on the surfaces andlinings specified in 2.1.1.14 and 2.1.1.18 shall have a calorificvalue (see ISO 1716:1973 – Determination of calorific poten-tial) not exceeding 45 MJ/m2 of the area for the thicknessused. These requirements need not apply to the surfaces offurniture fixed to linings or bulkheads.

2.1.1.20 Where combustible materials are used in accor-dance with 2.1.1.14 and 2.1.1.18, they shall comply with thefollowing requirements:

.1 the total volume of combustible facings,mouldings, decorations and veneers in ac-commodation and service spaces shall notexceed a volume equivalent to 2.5 mm ve-neer on the combined area of the walls andceiling linings. Furniture fixed to linings,bulkheads or decks need not be included inthe calculation of the total volume of com-bustible materials; and

.2 in the case of ships fitted with an auto-matic sprinkler system complying with therequirements specified in 3.4, the abovevolume may include some combustiblematerial used for erection of “C” class di-visions.

2.1.1.21 The following surfaces shall have low flame-spread characteristics in accordance with the FTP Code:

.1 In passenger ships:.1.1exposed surfaces in corridors, stairway

enclosures and escape routes, and of

bulkhead and ceiling linings in ac-commodation and service spaces (ex-cept saunas) and control stations;

.1.2 surfaces and grounds in concealed orinaccessible spaces in accommoda-tion and service spaces and controlstations; and

.1.3 exposed surfaces of cabin balconies,except for natural hard wood deck-ing systems.

.2 In cargo ships of 500 gross tonnage andupwards:.2.1 exposed surfaces in corridors and

stairway enclosures and of ceilingsin accommodation and servicespaces (except saunas) and controlstations; and

.2.2 surfaces and grounds in concealed orinaccessible spaces in accommoda-tion and service spaces and controlstations.

2.1.1.22 The total mass of combustible materials used forthe construction of bulkheads, linings, ceilings and their asso-ciated grounds and furniture in accommodation and servicespaces, other than saunas, and control stations, on all types ofships, except cargo ships of less than 500 gross tonnage, andspaces where use of such materials is not prohibited, shall benot in excess of maximum values for the total mass of com-bustible materials per unit area prescribed in MSC/Circ.1003.

2.1.1.23 Materials used for the construction of ventilationducts passing through the fire-resisting divisions shall complywith the relevant requirements specified in Rules, Part 8 –Piping, 7.2 and 7.3.

2.1.1.24 Waste receptacles, other than receptacles in gal-leys, pantries, bars, garbage handling or storage spaces and in-cinerator rooms which are intended purely for the carriage ofwet waste, glass bottles and metal cans and are suitablymarked, shall be constructed of non-combustible materialswith no openings in the sides or bottom.

2.1.2 Fire-resisting divisions

2.1.2.1 Fire-resisting "A" class divisions are those divi-sions formed by bulkheads and decks which comply with thefollowing:

.1 they shall be constructed of steel or otherequivalent material;

.2 they shall be suitably stiffened;

.3 they shall be so constructed as to be capa-ble of preventing the passage of smoke andflame to the end of the one-hour standardfire test (see 1.2.2.42);

.4 they shall be insulated with approved non-combustible materials such that the aver-age temperature of the unexposed side willnot rise more than 140 oC above the origi-nal temperature, nor will the temperature,at any one point, including any joint, risemore than 180 oC above the original tem-perature.Depending on the time within which theabove-indicated temperature rise is en-


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sured in the course of the standard fire test,they may be assigned the following fireintegrity standards:.4.1 Class "A-60"-for 60 min;.4.2 Class "A-30"-for 30 min;.4.3 Class "A-15"-for 15 min;.4.4 Class "A-0"-for 0 min.

2.1.2.2 In order to reduce heat transmission in placeswhere "A" class divisions abut against decks, bulkheads orother structural members, provision shall be made for fire in-sulation of the abutting structures on one or both sides for atotal length of not less than 450 mm from "A" class division.The fire insulation of the abutting structures shall have at leastthe same fire integrity as the relevant "A" class division.

If a space is divided with a deck or bulkhead of“A” class standard having insulation of different values, theinsulation with the higher value shall continue on the deck orbulkhead with the insulation of the lesser value for a distanceof at least 450 mm.

2.1.2.3 Fire resisting divisions having a structural coreof aluminium alloy and separating adjacent spaces, each con-taining combustible materials, shall be insulated on both sidesof the structural core.

Non-load-bearing fire divisions need not be pro-vided with fire insulation on the side of the space not contain-ing non-combustible materials.

In any case, “A” class decks having an alumin-ium alloy core shall be fire insulated from below.

2.1.2.4 Where in cargo ships of less than 500 gross ton-nage an “A” class division separates adjacent spaces, one ofwhich does not contain any combustible materials or it is ex-ternal boundary of a superstructure or a deckhouse, other thanthose referred to in 2.4.2.2, such a division may be of “A-0”class, if it is made of steel.

2.1.2.5 Fire-resisting "B" class divisions are those divi-sions formed by bulkheads, decks, ceilings or linings whichcomply with the following:

.1 they shall be constructed of noncombusti-ble materials (combustible veneers arepermitted, see 2.1.1.14 and 2.1.1.18);

.2 they shall be constructed as to be capableof preventing the passage of flame to theend of the first half an hour of the standardfire test (see 1.2.2.42).

.3 they shall have an insulation value suchthat the average temperature of the unex-posed side will not rise more than 140 oCabove the original temperature, nor willthe temperature at any one point, includingany joint, rise more than 225 oC above theoriginal temperature, whichever side is ex-posed to fire test.Depending on the time within which theabove-indicated temperature rise is en-sured in the course of the standard fire test,they may be asigned the following fire in-tegrity standards:.3.1 Class "B-15"-for 15 minutes;.3.2 Class "B-0"-for 0 minutes.

2.1.2.6 Fire-resisting divisions shall be type tested inaccordance with the FTP Code, to ensure that they meet rele-vant requirements for integrity and temperature rise.

2.1.2.7 The type approval process for all “B” class pan-els to which handrails are attached on ro-ro passenger shipsshall include a suitable structural test (see MSC/Circ. 910).

2.1.2.8 Continuous "B" class ceilings or linings, in asso-ciation with the relevant decks or bulkheads, may be acceptedas contributing wholly or in part to the class of fire insulationof "A" class divisions as required in the appropriate fire integ-rity tables, providing that they are fire tested in accordancewith the FTP Code.

2.1.2.9 “C” class divisions are divisions constructed ofapproved non-combustible materials. They need meet neitherrequirements relative to the passage of smoke and flame norlimitations relative to the temperature rise. Combustible ve-neers are permitted provided they meet the requirements ofthis chapter.

2.1.3 Protection of openings and penetrationsin fire-resisting divisions

2.1.3.1 Except for hatches between cargo, special cate-gory, store and baggage spaces, and between such spaces andthe weather decks, openings shall be provided with perma-nently attached means of closing which shall be at least as ef-fective for resisting fires as the divisions in which they arefitted.

2.1.3.2 The construction of doors and door frames in“A” class divisions, with the means of securing them whenclosed, shall provide resistance to fire as well as to the passageof smoke and flame equivalent to that of the bulkheads inwhich the doors are situated, this being determined in accor-dance with the FTP Code. Doors approved without the sillbeing part of the frame shall be installed such that the gap un-der the door does not exceed 12 mm and a non-combustiblesill shall be installed under the door such that floor coveringsdo not extend beneath the closed door. Such doors and doorframes shall be constructed of steel or other equivalent mate-rial.

2.1.3.3 Doors and door frames in “B” class divisionsand means of securing them shall provide a method of closurewhich shall have resistance to fire equivalent to that of the di-visions, this being determined in accordance with the FTPCode. Doors approved without the sill being part of the frameshall be installed such that the gap under the door does not ex-ceed 25 mm. Such doors and door frames shall be constructedof non-combustible material.

In passenger ships carrying not more than 36passengers and in cargo ships constructed according to methodIC, the Register may permit the use of combustible materialsin doors separating cabins from individual interior sanitaryspaces such as showers.

2.1.3.4 Windows and scuttles fitted in bulkheads withinaccommodation and service spaces and control stations shallbe so constructed as to preserve the integrity requirements ofthe type of bulkheads in which they are fitted, this being de-termined in accordance with the FTP Code.

2.1.3.5 External boundaries which are required in2.1.1.1 to be of steel or other equivalent material may be


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pierced for the fitting of windows and sidescuttles providedthat there is no specific requirement for such boundaries ofpassenger ships and cargo ships, including tankers (< 60°C),to have “A” class fire integrity elsewhere in this part of theRules. Similarly, in such boundaries which are not required tohave “A” class fire integrity, doors may be constructed ofmaterials to the satisfaction of the Register (see Rules, Part 3– Hull Equipment, 7.2 and 7.5).

2.1.3.6 Doors fitted in fire-resisting divisions (self-closing and remotely automatically closing doors included)shall be so arranged as to be capable of being opened fromeach side of the bulkhead by one person only.

2.1.3.7 Doors required to be self-closing shall not befitted with hold-back hooks.

However, hold-back arrangements fitted withremote release device of the fail-safe type may be utilized.

2.1.3.8 Power-operated watertight doors constructed andfitted so as to comply with requirements specified in Rules,Part 3 - Hull Equipment, 7.12 may be installed in "A" classbulkheads and need not be insulated.

2.1.3.9 Ventilation openings and louvres in "A" classdoors shall not be permitted (see 2.1.3.2).

2.1.3.10 "B" class doors in corridor bulkheads, exceptdoors located in stairway enclosures, may be provided withventilation opening fitted in the lower portion of doors. Alter-natively, a non-combustible air balance duct routed betweenthe cabin and the corridor may be permitted.

The cross-sectional area of the duct and/or totalnet area of any such opening or openings shall not exceed 0.05m2.

Ventilation openings, except those in cargoships, provided under the door (see 2.1.3.3), shall be fittedwith a grill made of non-combustible material.

2.1.3.11 “B” class doors may be glazed in the upper por-tion of the door. The glass panel shall be mounted in the framemade of steel and shall be retained by a metal glazing bead orangle (see 2.1.3.3). Large area glazed doors fitted in publicspaces and failing to comply with the requirements for "B"class bulkheads, may be approved by the Register, providedthat water screens meeting the requirements specified in 3.6are provided.

2.1.3.12 Door furniture such as hinges, locks, latches,shoot bolts, handles, etc. shall be constructed of materialshaving melting points of not less than 950 oC, for "A" classdoors, and not less than 850 oC for "B" class doors.

2.1.3.13 Where “A” class divisions are penetrated, suchpenetrations including ventilation ducts penetrations and firedampers with their relevant means of operation shall be testedin accordance with the FTP Code.

The testing is not required for steel sleeveswhich are directly joined to ventilation ducts by means of riv-eted or screwed flanges or by welding.In any event fire integrity standards of the divisions at open-ings and penetrations of the ventilation systems in ship’sspaces shall comply with the relevant requirements as speci-fied in Rules, Part 8 – Piping, Chapter 7.

Also, where a pipe penetration is made of steelor equivalent material having a thickness of 3 mm or greater

and a length of not less than 900 mm (preferably 450 mm oneach side of the division), and there are no openings in, testingis not required. Such penetrations shall be suitably insulatedby extension of the insulation at the same level of the division(see 2.1.2.2).

These requirements shall equally apply to allpenetrations at the exterior boundaries of superstructures anddeckhouses which according to 2.4.2.2 are required to be "A-60” class insulated (see MSC.1/Circ. 1203).

2.1.3.14 Where “B” class divisions are penetrated for thepassage of electric cables, pipes, trunks, ducts, etc., or for thefitting of ventilation terminals, lighting fixtures and similardevices, arrangements shall be made to ensure that the fire re-sistance is not impaired (for ventilation ducts see Rules, Part 8– Piping, 7.2). Pipes other than steel or copper that penetrate“B” class divisions shall be protected by either:

.1 a fire-tested penetration device suitable forthe fire resistance of the division piercedand the type of pipe used; or

.2 a steel sleeve, having a thickness of notless than 1.8 mm and a length of not lessthan 900 mm for pipe diameters of 150mm or more and not less than 600 mm forpipe diameters of less than 150 mm (pref-erably equally divided to each side of thedivision). The pipe shall be connected tothe ends of the sleeve by flanges or cou-plings; or the clearance between the sleeveand the pipe shall not exceed 2,5 mm; orany clearance between pipe and sleeveshall be made tight by means of non-combustible or other suitable material.

2.1.3.15 Uninsulated metallic pipes penetrating “A” or“B” class divisions shall be of materials having a melting tem-perature which exceeds 950°C for “A-0” and 850°C for “B-0”class divisions.

2.1.3.16 Combustible gaskets in flanged ventilation ductconnections shall not be permitted within 600 mm of anopening in “A” or “B” class divisions and in ducts required tobe of “A” class construction.

2.1.4 Protection of stairways and otheropeningsClosing arrangements and control ofventilation systems

2.1.4.1 In accommodation spaces, service spaces andcontrol stations protection of stairways and lifts shall complywith the following:

.1 all stairways shall be of steel frame orother equivalent material construction andshall comply with the requirements speci-fied in Rules, Part 3 - Hull Equipment, 8.4;

.2 stairways which penetrate only a singledeck shall be protected, at a minimum, atone level by at least "B-0" class divisionsand self-closing doors;

.3 lifts which penetrate only a single deckshall be surrounded by "A-0" class divi-sions with steel doors at both levels;

.4 stairways and lift trunks which penetratemore than a single deck shall be sur-


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rounded by at least "A-0" class divisionsand be protected by self-closing doors atall levels.Fire protection of lifts wholly containedwithin the stairway enclosure is not re-quired;

.5 self-closing doors shall be capable ofclosing against an inclination of 3.5° op-posing closure. Hold-back arrangements, iffitted, shall be capable of remote releasefrom the wheelhouse and the place where aresponsible member of the crew is on dutywhen the wheelhouse is unmanned, eithersimultaneously or in groups, and also indi-vidually from a position at the door.The release mechanism shall be so de-signed that the door will automaticallyclose in the event of disruption or de-energizing of the remote control system.

.6 on ships having accommodation for 12persons or less, stairways which penetratemore than a single deck may be sur-rounded by at least "B-0" class divisionsand be protected by self-closing doors atall levels, provided there are at least twoescape routes direct to the open deck atevery accommodation level.

2.1.4.2 The main inlets and outlets of all ventilationsystems serving accommodation spaces, service spaces andcontrol stations shall be provided with positive means of clo-sure capable of being operated from position outside the spacebeing ventilated.

The means of closure shall be easily accessibleas well as prominently and permanently marked and shall in-dicate whether the shut-off is open or closed.

2.1.4.3 Power ventilation of accommodation spaces,service spaces and control stations shall be capable of beingstopped from an easily accessible position outside the spacebeing served. This position shall not be readily cut off in theevent of a fire in the spaces served. The means provided forstopping the power ventilation of the accommodation spaces,service spaces and control stations shall be entirely separatefrom the means provided for stopping ventilation of otherspaces.

2.1.4.4 In passenger ships carrying more than 36 pas-sengers, power ventilation of accommodation spaces, servicespaces and control stations shall be fitted with controls sogrouped that all fans may be stopped from either of two sepa-rate positions which shall be situated as far apart as practica-ble.

2.1.4.5 Air spaces enclosed behind ceilings, panellings,or linings, shall be divided by close-fitting draught stopsspaced not more than 14 m apart. In the vertical direction,such air spaces, including those behind linings of stairways,trunks, etc., shall be closed at each deck level.

2.1.4.6 Permanent openings in the side plating, the endsor deckhead of the cargo spaces shall be so situated that a firein these spaces does not endanger stowage areas and embar-kation stations for survival craft and accommodation spaces,service spaces and control stations located in superstructuresand deckhouses above such spaces.

2.1.5 Protection of the machinery spaces

2.1.5.1 The requirements of this section shall apply tomachinery spaces of category A and, where the Register con-siders it desirable, to other machinery spaces.

2.1.5.2 The number of skylights, doors, ventilators,openings in funnels to permit exhaust ventilation and otheropenings to machinery spaces shall be reduced to a minimumconsistent with the needs of ventilation and the proper andsafe working of the ship.

2.1.5.3 No windows and glass panels shall be fitted inmachinery space boundary divisions, crowns, casings andskylights.

However, this does not preclude the use of glassin propulsion machinery control room laying wholly withinmachinery space.

2.1.5.4 In spaces where a fixed fire-smothering systemis used (gas or equivalent aerosol systems – see Table 3.1.2-1)openings, such as skylights, ventilation inlets and outlets,openings in funnels etc., which may admit air to, or allow gasto escape from, a protected space shall have permanently at-tached closing arrangements.

These arrangements shall be made of steel and,in the event of fire in the space so protected, shall be capableof being operated from outside the space concerned, wherethey shall not be cut off in the event of fire in the space theyserve.

2.1.5.5 Doors fitted in boundary bulkheads of machin-ery spaces of category A, other than power-operated water-tight doors, outer doors and normally locked doors, shall bereasonably gastight and self-closing. Hold-back arrangements,if fitted, shall include release mechanisms on doors and meansof control for closing the doors, located outside the space con-cerned, where they will not be cut off in the event of fire in thespace it serves.

2.1.5.6 In passenger ships, doors referred to in 2.1.5.5shall, in case of fire, be capable of closing against an inclina-tion of 3,5° opposing closure and have a fail-safe hold-backarrangement provided with a remotely operated release device.

The means of control shall be situated at onecontrol position, to the satisfaction of the Register. Such posi-tion shall have safe access from the weather deck.

2.1.5.7 Doors for emergency escape trunks shall be ofthe self-closing type and need not be fitted with a fail-safehold-back facility and a remotely operated release device.

2.1.5.8 In addition to the watertight door separating ma-chinery space of category A from the shaft tunnel, on the sideof the tunnel a light steel fire-screen door shall be fitted capa-ble of being operated from each side.

2.1.5.9 Purifiers and similar equipment for preparingheated fuel oil for use in boilers and machinery shall be placedin a separate room, enclosed by steel bulkheads extendingfrom deck to deck and provided with self-closing steel doors.

2.1.5.10 Means of control shall be provided for openingand closure of skylights, closure of openings in funnels whichnormally allow exhaust ventilation and closure of ventilatordampers.


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2.1.5.11 Means of control shall be provided for stoppingventilating fans. Controls provided for the power ventilationserving machinery spaces shall be grouped so as to be oper-able from two positions, one of which shall be outside suchspaces. The means provided for stopping the power ventilationof the machinery spaces shall be entirely separate from themeans provided for stopping ventilation of other spaces.

2.1.5.12 Means of control shall be provided for stoppingforced and induced draught fans, oil fuel transfer pumps, oilfuel unit pumps, lubricating oil service pumps, thermal oil cir-culating pumps and oil separators (purifiers). However, re-quirements in 2.1.5.13 and 2.1.5.14 need not apply to oilywater separators.

2.1.5.13 The controls required in 2.1.5.10 to 2.1.5.12 andcontrols specified in Rules, Part 8 – Piping, 8.2 shall be lo-cated outside the space concerned so they will not be cut off inthe event of fire in the space they serve.

2.1.5.14 In passenger ships, the controls required in2.1.5.10 to 2.1.5.13 and in 2.1.5.5 and 2.1.5.16 and the con-trols for any required fire-extinguishing system shall be situ-ated at one control position or grouped in as few positions aspossible to the satisfaction of the Register. Such positionsshall have a safe access from the weather deck.

2.1.5.15 Suitable arrangements shall be made to permitthe release of smoke, in the event of fire, from the space to beprotected, subject to the requirements in 2.1.5.2. The normalventilation system may be acceptable for this purpose.

2.1.5.16 Means of control shall be provided for permit-ting the release of smoke and such controls shall be locatedoutside the space concerned so that they will not be cut off inthe event of fire in the space they serve.

2.1.5.17 Installation of atmospheric oil mist detectors inmachinery spaces, where provided, shall comply with Code ofPractice for Oil Mist Detectors (see MSC/Circ. 1086.)

2.1.6 Protection of control stations outsidemachinery spaces from smoke spread

2.1.6.1 Practicable measures shall be taken for controlstations outside machinery spaces in order to ensure that ven-tilation, visibility and freedom from smoke are maintained sothat, in the event of fire, the machinery and equipment con-tained therein may be supervised and continue to function ef-fectively.

2.1.6.2 Alternatiave and separate means of air supplyshall be provided and air inlets of the two sources of supplyshall be so disposed that the risk of both inlets drawing insmoke simultaneously is minimized. At the discretion of theRegister, such requirements need not apply to control stationssituated on, and opening onto, an weather deck or where localclosing arrangements would be equally effective.

2.1.6.3 The ventilation system serving safety centresmay be derived from the ventilation system serving the navi-gation bridge, unless located in an adjacent main vertical zone.

2.1.7 Ventilation systems and fire protectionand fire-extinguishing arrangements ingalleys and laundries

2.1.7.1 The ventilation systems for galleys, machineryspaces of category A, vehicle spaces, ro-ro spaces, specialcategory spaces and other cargo spaces shall, in general, beseparated from each other and from the ventilation systemsserving other spaces, except that the galley ventilation systemson cargo ships of less than 4,000 gross tonnage and in passen-ger ships carrying not more than 36 passengers need not becompletely separated, but may be served by separate ductsfrom a ventilation unit serving other spaces. In any case, anautomatic fire damper shall be fitted in the galley ventilationduct, including any duct section, near the ventilation unit.Ducts provided for the ventilation of galleys shall not passthrough accommodation, spaces, service spaces or control sta-tions unless they comply with the conditions as specified inRules, Part 8 – Piping, 7.2.

2.1.7.2 Exhaust ducts from galley ranges in cargo shipsof 500 gross tonnage and upwards and passenger ships carry-ing not more than 36 passengers, where they pass through ac-commodation spaces or spaces containing combustible materi-als, shall be constructed of “A” class divisions.

Each exhaust duct shall be fitted with:.1 a grease trap readily removable for clean-

ing;.2 a fire damper located in the lower end of

the duct and, in addition, a fire damper inthe upper end of the duct;

.3 arrangements, operable from within thegalley, for shutting of the exhaust fans;

.4 a fixed means for extinguishing a firewithin the duct.

2.1.7.3 Exhaust ducts from galley ranges in passengerships carrying more than 36 passengers shall meet the re-quirements specified in Rules, Part 8 – Piping, 7.2 and shallbe fitted with:

.1 a grease trap readily removable for clean-ing unless an alternative approved greaseremoval system is fitted;

.2 a fire damper located in the lower end ofthe duct which is automatically and re-motely operated and, in addition, a re-motely operated fire damper located in theupper end of the duct;

.3 a fixed means for extinguishing a firewithin the duct;

.4 remote-control arrangements for shuttingoff the exhaust fans and supply fans, foroperating the fire dampers mentioned inparagraph .2 above and for operating thefire-extinguishing system, which shall beplaced in a position close to the entrance tothe galley. Where a multi-branch system isinstalled, a remote means located with theabove controls shall be provided to closeall branches exhausting through the samemain duct before an extinguishing mediumis released into the system; and

.5 suitably located hatches for inspection andcleaning.


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2.1.7.4 In ships carrying more than 36 passengers, ex-haust ducts from ranges for cooking equipment installed onweather decks shall comply with 2.1.7.3, as applicable, whenpassing through accommodation spaces or spaces containingcombustible materials.

2.1.7.5 In ships carrying more than 36 passengers, ex-haust ducts from main laundries shall be fitted with:

.1 filters readily removable for cleaning pur-poses;

.2 a fire damper located in the lower end ofthe duct which is automatically and re-motely operated;

.3 remote-control arrangements for shuttingoff the exhaust fans and supply fans fromwithin the space and for operating the firedamper mentioned in paragraph .2 above;and

.4 suitably located hatches for inspection andcleaning.

2.1.7.6 In passenger ships and in cargo ships of 500gross tonnage and upwards, deep-fat cooking equipment in-stalled in enclosed spaces or on weather decks, shall be fittedwith the following:

.1 an automatic or manual extinguishingsystem tested to the standard ISO15371:2000 or equivalent;

.2 a primary and backup thermostat with analarm to alert the operator in the event offailure of either thermostat;

.3 arrangements for automatically shuttingoff the electrical power upon activation ofthe extinguishing system;

.4 an alarm for indicating operation of theextinguishing system in the galley wherethe equipment is installed; and

.5 controls for manual operation of the extin-guishing system which are clearly labelledfor ready use by the crew.

2.1.7.7 The galley floor shall be lined with ceramic tilesor other equivalent non-combustible materials.

2.1.7.8 Galleys provided with gas-fired equipment shallnot be located adjacent to store-rooms for flammable liquidsand combustible materials.

2.1.7.9 Except wooden chopping board, no combustiblematerials shall be used in galleys provided with gas-firedequipment.

2.1.7.10 Galley flue gas ducts from gas-fired equipment,when passing through and/or being contiguous with accom-modation spaces, service spaces and control stations, shallcomply with the requirements for construction and fire insula-tion as required for exhaust ducts from galley ranges and shallbe provided with automatic fire damper close to the bounda-ries penetrated (see MSC/Circ.1276).

2.1.7.11 No oil-fired equipment for galley use shall beaccepted.

2.1.8 Arrangements for gaseous fuel fordomestic purposes

2.1.8.1 Register may accept the use of gaseous fuel fordomestic purposes if gaseous fuel and all components of gase-ous fuel arrangement (gas cylinders, gaseous fuel consumers,etc.) comply with recognized standards.

The use of gaseous fuel for domestic purposes inpassenger ships and oil tankers shall be subject to the specialconsideration by the Register.

2.1.8.2 Gaseous fuel may be used for galley ranges,rapid water-heaters and provision refrigerators consuming notmore than 1 kg of gas per hour.

2.1.8.3 Gaseous fuel consumers shall be fitted withautomatic shutdown valve for stopping flow of gas in theevent of burners flame failure.

For rapid water-heaters pilot flame shall be pro-vided in addition.

2.1.8.4 Enclosed spaces intended for gas-cylindersstore-room shall be efficiently ventilated. Store-room shall belocated on the weather deck and have direct access from theweather deck. Access door shall be opened outwards and shallbe fitted with lock and a conspicuous warning signs: “Danger-Explosion”; “No smoking”.

2.1.8.5 Location for the storage of gas cylinders on theweather deck (not more than two cylinders) shall be so chosenas to preclude mechanical damage of the cylinders and shallbe at a distance of not less than 2 m from the accommodationspaces and control stations and shall not be contiguous withstore-rooms for flammable liquids. Such a location shall be ata safe distance from the life-saving equipment also.

The cylinders shall be protected from the directsun-light and from the access of the unauthorized personsthereto by the grating walls and door. In the close vicinity ofthe cylinders corresponding warning signs shall be exhibited(see 2.1.8.4).

The depth of a recess into a deck structure, usedfor the exclusive storage of gas cylinders, shall be not greaterthan 1 m (see MSC/Circ.1276).

2.1.8.6 Electric equipment located in store-room for gascylinders shall comply with the requirements specified inRules, Part 12 – Electrical Equipment, 1.9.4.

2.1.8.7 Stowage of gas cylinders shall comply with thefollowing requirements:

.1 cylinders shall be stowed in upright posi-tion with stop valves on top and securedwith straps or similar quick release ar-rangements;

.2 pressure reducing valve shall be providedbetween gas cylinder and piping;

.3 where stowage of more than two gas cyl-inders is provided, a manifold with onlyone pressure reduction valve may be fitted.Copper pipes shall be used for connectionbetween gas cylinders and the manifold.

.4 shut-off valve or cock shall be fitted be-tween each cylinder and the manifold.Warning sign prohibiting use of more than


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one cylinder at the same time shall be pro-vided in close vicinity.

2.1.8.8 In addition to the requirements prescribed in2.1.7, enclosed spaces in which gaseous fuel consumers areinstalled shall comply with following:

.1 the space shall not be located below theweather deck;

.2 rapid water-heaters shall be provided withseparate flue-gas discharge ducts.

2.1.8.9 Seamless-steel or copper pipes shall be used forgas-distribution piping. Steel pipes shall be protected againstcorrosion.

2.1.8.10 The wall thickness of pipes shall comply withthe requirements prescribed in Rules, Part 8 – Piping, Table1.3.4.3, column 3 or 11, as applicable.

2.1.8.11 Distribution piping between cylinders and gase-ous fuel consumers shall be led on weather deck and protectedfrom mechanical damage.

2.1.8.12 Piping joints shall be of the welded type.Threaded joints or flange joints may be used only for control-measuring instruments, fittings and gaseous fuel consumers.

2.1.8.13 A shut-off valve or cock shall be fitted on distri-bution piping which shall be operated from outside the cylin-der store-room. The shut-off valve or cock shall have indica-tion for open and closed position.

2.1.8.14 Where provision is made for more than onegaseous fuel consumer, distribution piping for each consumershall be fitted with shut-off valve or cock with indication foropen and closed position. If such valves or cocks are locatedin the store-room, arrangements shall be provided to operatethem from outside the store-room.

In latter case no shut-off valve or cock on mani-fold is required (see 2.1.8.13).

2.1.8.15 Pressure reducing valve setting shall not behigher than 5 kPa.

2.1.8.16 A safety valve with a setting pressure of lessthan 7 kPa shall be provided with gas outlet leading to a safeplace on the open deck and fitted close-after to the pressurereducing valve. The safety valve need not be provided if thereducing valve is so designed that gas flow to the low pressureside is avoided in the case of failure or break of membrane.

2.1.8.17 Piping fittings shall be made of bronze, brass orother non-sparking corrosion-resistant material.

2.1.8.18 Pipeline from gas cylinder to pressure reducingvalves shall be tested:

.1 in a workshop, by hydraulic pressure of2.5 MPa.

.2 after installation on board, by air pressureof 1.7 MPa.

Pipelines from pressure reducing valve to gase-ous fuel consumers shall be tested for tightness by air pressureof 0.02 MPa, after installation on board.

2.1.9 Construction and arrangement of saunas

2.1.9.1 The perimeter of the sauna shall be constructedof fire-resisting divisions complying as required in the appli-

cable fire integrity tables and may include changing rooms,showers and toilets.

2.1.9.2 Bathrooms with direct access to saunas may beconsidered as part of them. In such cases, the door betweensauna and the bathroom need not comply with fire safety re-quirements.

2.1.9.3 The traditional wooden lining on the bulkheadsand ceiling are permitted in the sauna. The ceiling above theoven shall be lined with a non-combustible plate with an airgap of at least 30 mm. The distance from the hot surfaces tocombustible materials shall be at least 500 mm or the com-bustible materials shall be protected (e.g., non-combustibleplate with an air gap of at least 30 mm).

2.1.9.4 The traditional wooden benches are permitted tobe used in the sauna.

2.1.9.5 The sauna door shall open outwards by pushing.

2.1.9.6 Electrically heated ovens shall be provided witha timer. Electrical equipment, cables and wiring in saunasshall comply with the requirements specified in Rules, Part 12– Electrical Equipment, Chapter 15 and section 16.8.

2.1.10 Store-rooms for flammable liquids andreadily combustible materials

2.1.10.1 Flammable liquids and readily combustible ma-terials shall be stowed in a separate and designated enclosedspaces.

2.1.10.2 Store-room for flammable liquids shall be lo-cated on the weather deck and have direct access from theweather deck.

Entrance door shall be opened outward and pro-vided with a lock and conspicuous warning signs: “FlammableLiquids”; “No Smoking”.

2.1.10.3 Store-room for readily combustible materialsshall be, in generally, not situated in common with accommo-dation and service spaces and control stations.

Access shall be provided from the weather deckdirectly or through a corridor or a stairway leading to thisroom. Entrance door shall be provided with a lock.

2.1.10.4 Store-room for stowage of cargo samples intankers (< 60°C) shall, in generally, be situated in the cargoarea. For chemical tankers see Rules, Part 27 – ChemicalTankers, 16.5.

2.1.10.5 Paint stores shall be not situated in the cargoarea of tankers (< 60°C) and chemical tankers.

2.1.10.6 Location and arrangement of store-room desig-nated for storage of fuel oil with a flash point of less than43°C shall be subject to special consideration be the Registerin each particular case.

The fuel oil shall be packaged in metal jerrycanshaving capacity of not exceeding 60 l and fitted with fixedtight closing lids.

For the requirements for helicopter refuelling fa-cilities see 2.1.13.

2.1.10.7 Store-rooms for flammable liquids, except forstore-room for stowage of cargo samples located in the cargo


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area, shall be mechanically ventilated with separate exhaustfan.

2.1.10.8 Fire-extinguishing arrangements in store-roomsfor flammable liquids shall comply with the requirements asspecified in Table 3.1.2-1, item 5.

2.1.10.9 Electric equipment located in store-room forflammable liquids shall comply with requirements specified inRules, Part 12 – Electrical Equipment, 19.4.

2.1.11 Heating

2.1.11.1 Electric heating shall comply with the require-ments specified in Rules, Part 12 – Electrical Equipment, 15.1and 15.2.

2.1.11.2 Electric radiators, if used, shall be of such a con-struction as to reduce to a minimum possibility to set on fireclothing, curtains, baggage or other similar materials.

2.1.11.3 Steam and electric radiators shall be fixed in aposition at a distance of not less than 50 mm from bulkheadsor linings. If the bulkheads and linings are of combustiblematerial, the portions located against the heating elementsshall be screened wit heat deflectors of non-combustible mate-rial, otherwise the heating elements shall be at a distance ofnot less than 150 mm from the bulkheads and linings made ofcombustible materials.

2.1.12 Hot work, gas welding equipment andgas cylinders rooms

2.1.12.1 Hot work shall be considered any work requiringthe use of electric arc or gas welding equipment, cuttingburner equipment or other forms of naked flame, as well asheating or spark generating tools, regardless of where it is car-ried out on board a ship.

2.1.12.2 Performing of any hot work operation shall be inaccordance with relevant principles included in the fire safetyoperational booklet (see 1.4.13) and, when undertaken outsidethe designated space, shall be controlled under the SafetyManagement System (SMS) on board through adequate guid-ance-permit to work system.

2.1.12.3 Whenever possible, a space such as engine roomworkshop or a separate room shall be designated for hot work.

2.1.12.4 The designated space shall be assessed for pos-sible risks and provided with adequate conditions under whichhot work may be carried in that space (ventilation, fire protec-tion and fire-extinguishing arrangements, etc.) to the satisfac-tion of the Register.

2.1.12.5 The requirements of this section for gas weldingequipment and gas cylinders rooms shall apply to the fixedcentralised plant for oxyacetylene welding on board consistingof a gas cylinders, piping and distribution stations, where thetotal number of acetylene and oxygen cylinders exceeds four.

2.1.12.6 The gas cylinders room containing acetylene andoxygen cylinders, where distribution headers, non-return andstop valves, pressure reducing devices and outlets of supplylines to distribution stations may also be installed, shall com-ply with the following requirements:

.1 Cylinders shall be stowed in upright posi-tion and rested on stands having sockets.Straps or similar arrangements shall befitted for securing and quick release of thecylinders;

.2 The gas cylinders room shall be ade-quately insulated and ventilated, as appro-priate, so that the temperature inside doesnot exceed 45°C. When the total numberof gas cylinders, including possible sparecylinders which are not connected to thesystem, does not exceed 8, acetylene andoxygen cylinders my be installed in thesame enclosed space. Otherwise acetyleneand oxygen cylinders shall be located inseparate enclosed spaces. The gas cylin-ders room shall be located on the weatherdeck and provided with direct access fromthe weather deck. Access door shall openoutwards and shall be fitted with lock andthe conspicuous warning signs: “Danger-Explosion”; “No-Smoking”. No commonboundaries with the accommodationspaces and control stations shall be per-mitted.The gas cylinders room shall not be usedfor other services on board;

.3 Storage of gas cylinders on the weatherdeck is subject to special consideration bythe Register in each particular case. Loca-tion shall be so chosen as to preclude me-chanical damage of the cylinders and shallbe at a distance not less than 2 m from theaccommodation spaces and control sta-tions and shall be not contiguous withstore rooms for flammable liquids.Such a location shall be at a safe distancefrom the life-saving equipment also.The cylinders shall be protected from theaccess of the unauthorized persons theretoand from the direct sun-light. In the closevicinity of the cylinders relevant warningsigns shall be exhibited (see paragraph .2above).

2.1.12.7 No more than two distribution stations are nor-mally permitted.

Distribution stations which may be adequatelyprotected areas or cabinets equipped with stop valves, pressureregulating devices, pressure gauges, non-return valves andoxygen as well as acetylene hose connections for the weldingtorch, shall be located in the designated space such as engineroom workshop or in the separate enclosed space, in a well-ventilated position and protected against possible mechanicaldamage.

2.1.13 Helicopter facilities

2.1.13.1 Where helicopters land or conduct winching op-erations on an occasional or emergency basis on ships withouthelidecks, fire-fighting equipment fitted in accordance withthe requirements of regulations in Chapter 3 and Chapter 5may be used. This equipment shall be made readily available


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in close proximity to the landing or winching areas duringhelicopter operations.

2.1.13.2 Notwithstanding the requirements in 2.1.13.1,ro-ro passenger ships without helidecks shall be provided witha helicopter pick-up area approved by the Administration.

2.1.13.3 In addition to complying with the requirementsof regulations in Chapters 2, 3, 4 and 5, as appropriate, shipsequipped with helicopter facilities shall comply with require-ments as specified in 2.1.13.4, 2.1.13.5 and 2.1.13.6.

2.1.13.4 The structure, means of escape, fire-fighting ap-pliances, helicopter refuelling and hangar facilities (where fit-ted) and operation manual and fire-fighting arrangements ofthe on-board helicopter facilities (a helideck including anyhangar and refuelling installation) shall comply with Standardsfor Onboard Helicopter Facilities as specified in resolutionA.855(20), as may be amended.

2.1.13.5 Closed hangars and closed spaces containing re-fuelling installations shall be provided with mechanical venti-lation as required for closed ro-ro spaces of cargo ships (seeRules, Part 8 – Piping, 7.6). Ventilation fans shall be of non-sparking type.

2.1.13.6 Electrical equipment and wiring in closed han-gars and closed spaces containing refuelling installations shallcomply with the requirements as specified in Rules, Part 12 –Electrical Equipment, 19.3.

2.2 PASSENGER SHIPS

2.2.1 Generally

2.2.1.1 The requirements of this section are in additionto the requirements specified in section 2.1 and, where ex-pressly provided otherwise, the requirements of this sectionshall prevail.

2.2.2 Main vertical and horizontal zones

2.2.2.1 In ships carrying more than 36 passengers, thehull, superstructure and deckhouses shall be subdivided intomain vertical zones by "A-60" class divisions. Steps and re-cesses shall be kept to a minimum but where they are neces-sary, they shall also be "A-60" class divisions. Where a cate-gory (5), (9) or (10) space is on one side or where fuel oiltanks are on both sides of the division the standard may be re-duced to "A-0" (see 2.2.4.2.2).

2.2.2.2 In ships carrying not more than 36 passengers,the hull, superstructure and deckhouses in way of accommo-dation and service spaces shall be subdivided into main verti-cal zones by "A" class division. These division shall have in-sulation values in accordance with the requirements specifiedin 2.2.5.1

2.2.2.3 As far as practicable, the bulkheads forming theboundaries of the main vertical zones above the bulkhead deckshall be in line with watertight subdivision bulkheads situatedimmediately below the bulkhead deck. The length and widthof main vertical zones may be extended to a maximum of 48m in order to bring the ends of main vertical zones to coincidewith subdivision watertight bulkheads or in order to accom-

modate a large public space extending for the whole length ofthe main vertical zone provided that the total area of the mainvertical zone is not greater than 1,600 m2 on any deck.

The lenght or width of a main vertical zone isthe maximum distance between the furthermost points of thebulkheads bounding it.

If a stairway serves two main vertical zones, themaximum length of any one main vertical zone need not bemeasured from the far side of the stairway enclosure.

In this case all boundaries of the stairway enclo-sure shall be insulated as main vertical zone bulkheads.

2.2.2.4 Such bulkheads shall extend from deck to deckand to the shell or other boundaries.

2.2.2.5 Where a main vertical zone is subdivided byhorizontal "A" class divisions into horizontal zones for thepurpose of providing an appropriate barrier between a zonewith sprinkles and a zone without sprinklers, the divisionsshall extend between adjacent main vertical zone bulkheadsand to the shell or exterior boundaries of the ship and shall beinsulated in accordance with the fire insulation and integrityvalues given in Table 2.2.5.2-2.

2.2.2.6 On ships designed for special purposes, such asautomobile or railroad car-ferries (see 1.2.2.34) where theprovision of main vertical zone bulkheads, as required in2.2.2.1 and 2.2.2.2, would defeat the purpose for which theship is intended, equivalent means for controlling and limitinga fire shall be substituted and specifically approved by theRegister (see Table 3.1.2-1, item 6).

Service spaces and ship stores shall be not lo-cated on ro-ro decks unless protected to comply with the re-quirements prescribed in Chapter 2, 3 and 4, as appropriate.

2.2.2.7 However, in ship with special category spaces,such spaces shall comply with the applicable requirements in2.2.11 and, where such compliance would be inconsistent withother requirements for passenger ships specified in this Chap-ter, the requirements in 2.2.11 shall prevail.

2.2.3 Bulkheads within a main vertical zones

2.2.3.1 For ships carrying more than 36 passengers,bulkheads which are not required to be "A" class divisionsshall be at least "B" class or "C" class divisions as prescribedin Table 2.2.4.2-1.

2.2.3.2 For ships carrying not more than 36 passengersbulkheads within accommodation and service spaces whichare not required to be "A" class divisions shall be at least "B"class or "C" class divisions as prescribed in Table 2.2.5.2-1.

In addition, corridor bulkheads, where not re-quired to be "A" class, shall be "B" class divisions which shallextend from deck to deck except:

.1 when continuous "B" class ceilings or lin-ings are fitted on both sides of the bulk-head, the portion of the bulkhead behindthe continuous ceiling or lining shall be ofmaterial which, in thickness and composi-tion, is acceptable in the construction of"B" class divisions but which shall be re-quired to meet "B" class standards only inso far as is reasonable and practicable inthe opinion of the Register; and


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.2 in the case of a ship protected by an auto-matic sprinkler system complying with therequirements of section 3.4 the corridorbulkheads may terminate at a ceiling in thecorridor provided such bulkheads andceilings are of “B” class standards in com-pliance with 2.2.5 (see also 2.1.3.2).

2.2.3.3 Bulkheads required to be “B” class division, ex-cept corridor bulkheads as prescribed in 2.2.3.2, shall extendfrom deck to deck and to the shell or other boundaries unlessthe continuous “B” class ceilings or linings fitted on both sidesof the bulkheads are at least of the same fire resistance as thebulkhead, in which case the bulkhead may terminate at thecontinuous ceiling or lining (see MSC/Circ.917 andMSC/Circ.917/Corr.1).

2.2.3.4 The construction of ceilings, linings and bulk-heads shall be such that it will be possible, without impairingthe efficiency of the fire protection, for the fire patrols to de-tect any smoke originating in concealed and inaccessibleplaces, except where in the opinion of the Register is no riskof fire originating in such places.

2.2.3.5 Non-load bearing partial bulkheads which sepa-rate adjacent cabin balconies shall be capable of being openedby the crew from each side for the purpose of fighting fires.

2.2.3.6 Atriums shall be within enclosures formed of“A” class divisions having a fire rating determined in accor-dance with tables 2.2.4.2-2 and 2.2.5.2-2, as applicable.

2.2.3.7 Decks separating spaces within atriums shallhave a fire rating determined in accordance with tables2.2.4.2-2 and 2.2.5.2-2, as applicable.

2.2.4 Fire integrity of bulkheads and decks inships carrying more than 36 passengers

2.2.4.1 In addition to complying with the specific re-quirements for fire integrity of bulkheads and decks of pas-senger ships, the minimum fire integrity of all bulkheads anddecks shall be as prescribed in tables 2.2.4.2-1 and 2.2.4.2-2.Where, due to any particular structural arrangements in theship, difficulty is experienced in determining from the tablesthe minimum fire integrity value of any divisions, such valuesshall be determined to the satisfaction of the Register.

2.2.4.2 The following requirements shall govern appli-cation of the tables:

.1 Table 2.2.4.2-1 shall apply to bulkheadsnot bounding either main vertical zones orhorizontal zones. Table 2.2.4.2-2 shall ap-ply to decks not forming steps in mainvertical zones nor bounding horizontalzones.

.2 For determining the appropriate fire integ-rity standards to be applied to boundariesbetween adjacent spaces, such spaces areclassified according to their fire risk asshown in categories (1) to (14) below.Where the contents and use of a space aresuch that there is a doubt as to its classifi-cation for the purpose of this regulation, orwhere it is possible to assign two or moreclassifications to a space, it shall be treated

as a space within the relevant categoryhaving the most stringent boundary re-quirements. Smaller, enclosed roomswithin a space that have less than 30%communicating openings to that space areconsidered separate spaces. The fire integ-rity of the boundary bulkheads and decksof such smaller rooms shall be as pre-scribed in tables 2.2.4.2-1 and 2.2.4.2-2.The title of each category is intended to betypical rather than restrictive. The numberin parentheses preceding each category re-fers to the applicable column or row in thetables.(1) Control stations

Spaces containing emergency sourcesof power and lighting.Wheelhouse and chartroom.Spaces containing the ship’s radioequipment.Fire control stations.Control room for propulsion machin-ery when located outside the propul-sion machinery space.Spaces containing centralized firealarm equipment.Spaces containing centralized emer-gency public address system stationsand equipment.Safety center.

(2) Stairways:Interior stairways, lifts, totally en-closed emergency escape trunks andescalators (other than those whollycontained within the machineryspaces) for passengers and crew andenclosures thereto.In this connection, a stairway whichis enclosed at only one level shall beregarded as part of the space fromwhich it is not separated by a firedoor.

(3) Corridors:Passenger and crew corridors.

(4) Evacuation stations and external es-cape routes:Survival craft stowage area.Open deck spaces and enclosedpromenades forming lifeboat and lif-eraft embarkation and lowering sta-tions.Muster stations, internal and exter-nal.External stairs and open decks usedfor escape routes.The ship's side to the waterline in thelightest seagoing condition, super-sturcture and deckhouse sides situ-ated below and adjacent to the lifer-aft's and evacuation slide's embarka-tion areas.

(5) Open deck spaces:Open deck spaces and enclosedpromenades clear of lifeboat and lif-


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eraft embarkation and lowering sta-tions.To be considered in this category,enclosed promenades shall have nosignificant fire risk, meaning thatfurnishings shall be restricted todeck furniture. In addition, suchspaces shall be naturally ventilatedby permanent openings.Air spaces (the space outside super-structures and deckhouses).

(6) Accommodation spaces of minor firerisk:Cabins containing furniture and fur-nishings of restricted fire risk.Offices and dispensaries containingfurniture and furnishings of re-stricted fire risk.Public spaces containing furnitureand furnishings of restricted fire riskand having a deck area of less than50 m2.

(7) Accommodation spaces of moderatefire risk:Spaces as in category (6) above butcontaining furniture and furnishingsof other than restricted fire risk.Public spaces containing furnitureand furnishings of restricted fire riskand having a deck area of 50 m2 ormore.Isolated lockers and small store-rooms in accommodation spaceshaving areas less than 4 m2 (in whichflammable liquids are not stowed).Motion picture projection and filmstowage rooms.Diet kitchens (containing no openflame).Cleaning gear lockers (in whichflammable liquids are not stowed).Laboratories (in which flammableliquids are not stowed).Pharmacies.Small drying rooms (having a deckarea of 4m2 or less).Specie rooms.Operating rooms.

(8) Accommodation spaces of greaterfire risk:Public spaces containing furnitureand furnishings of other than re-stricted fire risk and having a deckarea of 50 m2 or more.Barber shops and beauty parlours.SaunasSale shops

(9) Sanitary and similar spaces:Communal sanitary facilities, show-ers, baths, water closets, etc.Small laundry rooms.Indoor swimming pool areas.

Isolated pantries containing nocooking appliances in accommoda-tion spaces.(Private sanitary facilities shall beconsidered a portion of the space inwhich they are located).

(10) Tanks, voids and auxiliary machin-ery spaces having little or no firerisk:Water tanks forming part of theship's structure.Voids and cofferdams.Auxiliary machinery spaces whichdo not contain machinery having apressure lubrication system andwhere storage of combustibles isprohibited, such as:ventilation and air-conditioningrooms; windlass room; steering gearroom; stabilizer equipment room;electrical propulsion motor room;rooms containing section switch-boards and purely electrical equip-ment other than oil-filled electricaltransformers (above 10 kVA); shaftalleys and pipe tunnels; spaces forpumps and refrigeration machinery(not handling or using flammableliquids).Closed trunks serving the spaceslisted above.Other closed trunks such as pipe andcable trunks.

(11) Auxiliary machinery spaces, cargospaces, fuel oil tanks and othersimilar spaces of moderate fire risk:Cargo holds, trunkways and hatch-ways.Refrigerated chambers.Oil fuel tanks (where installed in aseparate space with no machinery).Shaft alleys and pipe tunnels allow-ing storage of combustibles.Auxiliary machinery spaces as incategory (10) which contain machin-ery having a pressure lubricationsystem or where storage of combus-tibles is permitted.Oil fuel filling stations.Spaces containing oil-filled electricaltransformers (above 10 kVA).Spaces containing turbine and recip-rocating steam engine driven auxil-iary generators and small internalcombustion engines of power outputup to 110 kW driving generators,sprinkler, drencher or fire pumps,bilge pumps, etc.Closed trunks serving the spaceslisted above.

(12) Machinery spaces and main galleys:Main propulsion machinery rooms(other than electric propulsion motorrooms) and boiler rooms.


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Auxiliary machinery spaces otherthan those in categories (10) and (11)which contain internal combustionmachinery or other oil-burning,heating or pumping units.Main galleys and annexes.Trunks and casings to the spaceslisted above.

(13) Store-rooms, workshops, pantries,etc.:Main pantries not annexed to gal-leys.Main laundry.Large drying rooms (having a deckarea of more than 4 m2).Miscellaneous stores.Mail and baggage rooms.Garbage rooms.Workshops (not part of machineryspaces, galleys, etc.).Lockers and store-rooms having ar-eas greater than 4 m2, other thanthose spaces that have provisions forthe storage of flammable liquids.

(14) Other spaces in which flammableliquids are stowed:

Paint lockers.Store-rooms containing flammableliquids (including dyes, medicines,etc.).Laboratories (in which flammableliquids are stowed).

.3 Where a single value is shown for the fireintegrity of a boundary between twospaces, that value shall apply in all cases.

.4 Notwithstanding the provisions of para-graph 2.2.3, there are no special require-ments for material or integrity of bounda-ries where only a dash appears in the ta-bles.

.5 The Register shall determine in respect ofcategory (5) spaces whether the insulationvalues in Table 2.2.4.2-1 shall apply toends of deckhouses and superstructures,and whether the insulation values in Table2.2.4.2-2 shall apply to weather decks. Inno case shall the requirements of category(5) of tables 2.2.4.2-1 or 2.2.4.2-2 neces-sitate enclosure of spaces which in theopinion of the Register need not be en-closed.

Table 2.2.4.2-1Bulkheads not bounding either main vertical zones or horizontal zones

Spaces Spacecateg. (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) (14)

Control stations (1) B-01 A-0 A-0 A-0 A-0 A-60 A-60 A-60 A-60 A-60 A-60 A-60 A-60 A-60Stairways (2) A-01 A-0 A-0 A-0 A-0 A-15 A-15 A-03 A-0 A-15 A-30 A-15 A-30Corridors (3) B-15 A-60 A-0 B-15 B-15 B-15 B-15 A-0 A-15 A-30 A-0 A-30Evacuation stations andexternal escape routes

(4) A-0 A-602,4 A-602,4 A-602,4 A-04 A-0 A-602 A-602 A-602 A-602

Open deck spaces (5) A-0 A-0 A-0 A-0 A-0 A-0 A-0 A-0 A-0Accommodation spacesof minor fire risk (6) B-0 B-0 B-0 C A-0 A-0 A-30 A-0 A-30

Accommodation spacesof moderate fire risk (7) B-0 B-0 C A-0 A-15 A-60 A-15 A-60

Accommodation spacesof greater fire risk (8) B-0 C A-0 A-30 A-60 A-15 A-60

Sanitary and similarspaces (9) C A-0 A-0 A-0 A-0 A-0

Tanks, voids andauxiliary machineryspaces having little orno fire risk

(10) A-01 A-0 A-0 A-0 A-0

Auxiliary machineryspaces, cargo spaces,fuel oil tanks and othersimilar spaces ofmoderate fire risk

(11) A-01 A-0 A-0 A-15

Machinery spaces andmain galleys (12) A-01 A-0 A-60

Store-rooms, work-shops, pantries, etc. (13) A-01 A-0

Other spaces in whichflammable liquids arestowed

(14) A-30

See notes following Table 2.2.4.2-2


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Table 2.2.2.4-2Decks not forming steps in main vertical zones nor bounding horizontal zones

above SpacesSpaces

below categ.(1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) (14)

Control stations (1) A-30 A-30 A-15 A-0 A-0 A-0 A-15 A-30 A-0 A-0 A-0 A-60 A-0 A-60Stairways (2) A-0 A-0 A-0 A-0 A-0 A-0 A-0 A-0 A-0 A-0 A-0 A-30 A-0 A-30Corridors (3) A-15 A-0 A-01 A-60 A-0 A-0 A-15 A-15 A-0 A-0 A-0 A-30 A-0 A-30Evacuationstations andexternal escaperoutes

(4) A-0 A-0 A-0 A-0 − A-0 A-0 A-0 A-0 A-0 A-0 A-0 A-0 A-0

Open deck spaces (5) A-0 A-0 A-0 A-0 − A-0 A-0 A-0 A-0 A-0 A-0 A-0 A-0 A-0Accommodationspaces of minorfire risk

(6) A-60 A-15 A-0 A-60 A-0 A-0 A-0 A-0 A-0 A-0 A-0 A-0 A-0 A-0

Accommodationspaces ofmoderate fire risk

(7) A-60 A-15 A-15 A-60 A-0 A-0 A-15 A-15 A-0 A-0 A-0 A-0 A-0 A-0

Accommodationspaces of greaterfire risk

(8) A-60 A-15 A-15 A-60 A-0 A-15 A-15 A-30 A-0 A-0 A-0 A-0 A-0 A-0

Sanitary andsimilar spaces (9) A-0 A-0 A-0 A-0 A-0 A-0 A-0 A-0 A-0 A-0 A-0 A-0 A-0 A-0

Tanks, voids andauxiliarymachinery spaceshaving little or nofire risk

(10) A-0 A-0 A-0 A-0 A-0 A-0 A-0 A-0 A-0 A-01 A-0 A-0 A-0 A-0

Auxiliary ma-chinery spaces,cargo spaces, fueloil tanks andother similarspaces of moder-ate fire risk

(11) A-60 A-60 A-60 A-60 A-0 A-0 A-15 A-30 A-0 A-0 A-01 A-0 A-0 A-30

Machinery spacesand main galleys (12) A-60 A-60 A-60 A-60 A-0 A-60 A-60 A-60 A-0 A-0 A-30 A-301 A-0 A-60

Store rooms,workshops,pantries, etc.

(13) A-60 A-30 A-15 A-60 A-0 A-15 A-30 A-30 A-0 A-0 A-0 A-0 A-0 A-0

Other spaces inwhich flammableliquids are stowed

(14) A-60 A-60 A-60 A-60 A-0 A-30 A-60 A-60 A-0 A-0 A-0 A-0 A-0 A-0

Notes to be applied to Table 2.2.4.2-1 and Table 2.2.4.2-2, as appropriate1. Where adjacent spaces are in the same numerical category and superscript “1” appears, a bulkhead or deck between such

spaces need not be fitted if deemed unnecessary by the Register. For example, in category (12) a bulkhead need not be re-quired between a galley and its annexed pantries provided the pantry bulkhead and decks maintain the integrity of the galleyboundaries. No fire rating is required for those partitions separating the navigation bridge and the safety centre when the lat-ter is within the navigation bridge. A bulkhead is, however, required between a galley and machinery space even though bothspaces are in category (12).

2. The ship’s side, to the waterline in the lightest seagoing condition, superstructure and deckhouse sides situated below andadjacent to the liferafts and evacuation slides may be insulated to “A-30” standard.

3. Where public toilets are installed completely within the stairway enclosure, the public toilet bulkhead within the stairway en-closure may be of “B” class integrity.

4. Where spaces of category 6, 7, 8, and 9 are located completely within the outer perimeter of the assembly station, the bulk-heads of these spaces are allowed to be of “B-0” class integrity. Control positions for audio, video and light installations maybe considered as part of the muster station.


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2.2.5 Fire integrity of bulkheads and decks inships carrying not more than 36passengers

2.2.5.1 In addition to complying with the specific re-quirements for fire integrity of bulkheads and decks of pas-senger ships, the minimum fire integrity of bulkheads anddecks shall be as prescribed in tables 2.2.5.2-1 and 2.2.5.2-2.

2.2.5.2 The following requirements govern applicationof the tables:

.1 Tables 2.2.5.2-1 and 2.2.5.2-2 shall applyrespectively to the bulkheads and decksseparating adjacent spaces.

.2 Where the contents and use of a space aresuch that there is a doubt as to its classifi-cation for the purpose of this regulation, orwhere it is possible to assign two or moreclassifications to a space, it shall be treatedas a space within the relevant categoryhaving the most stringent boundary re-quirements. Smaller, enclosed roomswithin a space that have less than 30%communicating openings to that space areconsidered separate spaces. The fire integ-rity of the boundary bulkheads and decksof such smaller rooms shall be as pre-scribed in tables 2.2.5.2-1 and 2.2.5.2-2.The title of each category is intended to betypical rather than restrictive. The numberin parentheses preceding each category re-fers to the applicable column or row in thetables.(1) Control stations

Spaces containing emergency sourcesof power and lighting.Wheelhouse and chartroom.

Space containing the ship’s radioequipment.Fire control stations.Control room for propulsion ma-chinery when located outside themachinery space.Spaces containing centralized firealarm equipment.

(2) Corridors:Passenger and crew corridors andlobbies.

(3) Accommodation spaces:Spaces as defined in 1.2.2.1, ex-cluding corridors and lobbies.

(4) Stairways:Interior stairways, lifts, totallly en-closed emergency escape trunks andescalators (other than those whollycontained within the machineryspaces) and enclosures thereto.In this connection, a stairway whichis enclosed only at one level shall beregarded as a part of the space fromwhich it is not separated by a firedoor.

(5) Service spaces (low fire risk):

Lockers and store-rooms not havingprovisions for the storage of flam-mable liquids and having areas ofless than 4 m2 and drying rooms andlaundries.

(6) Machinery spaces of category A:Spaces as defined in 1.2.2.25.

(7) Other machinery spaces:Electrical equipment rooms (seeRules, Part 12 – Electrical Equip-ment, 1.2.7), auto-telephone ex-change and air-conditioning ductspaces.Spaces as defined in 1.2.2.24, ex-cluding machinery spaces of cate-gory A.

(8) Cargo spaces:All spaces used for dry cargo andtrunkways and hatchways to suchspaces, other than special categoryspaces.

(9) Service spaces (high fire risk):Galleys, pantries containing cookingappliances, paint lockers, lockers andstore-rooms having areas of 4 m2 ormore, spaces for the storage offlammable liquids, saunas and work-shops other than those forming partof the machinery spaces.

(10) Open decks:Open deck spaces and enclosedpromenades having little or no firerisk. Enclosed promenades shallhave no significant fire risk, meaningthat furnishing shall be restricted todeck furniture. In addition, suchspaces shall be naturally ventilatedby permanent openings.Air spaces (the space outside super-structures and deckhouses).

(11) Special category and ro-ro spaces:Spaces as defined in 1.2.2.34 and1.2.2.41.

.3 In determining the applicable fire integritystandard of a boundary between twospaces within a main vertical zone or hori-zontal zone which is not protected by anautomatic sprinkler system complyingwith the requirements of section 3.4, orbetween such zones neither of which is soprotected, the higher of the two valuesgiven in tables shall apply.

.4 In determining the applicable fire integritystandard of a boundary between twospaces within a main vertical zone or hori-zontal zone which is protected by anautomatic sprinkler system complyingwith the requirements of section 3.4 orbetween such zones both of which are soprotected, the lesser of the two valuesgiven in the tables shall apply.Where a zone with sprinkles and a zonewithout sprinklers meet within accommo-dation and service spaces, the higher of the


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two values given in the tables shall applyto the division between the zones.

Table 2.2.5.2-1Fire integrity of bulkheads separating adjacent spaces

Spaces spacecateg. (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11)

Control station (1) A-03 A-0 A-60 A-0 A-15 A-60 A-15 A-60 A-60 * A-60

Corridors (2) C5 B-05 A-01

B-05 B-05 A-60 A-0 A-0 A-15A-04 * A-15

Accommodationspaces

(3) C5 A-01

B-05 B-05 A-60 A -0 A-0 A-15A-04 * A-30

A-04

Stairways (4) A-01

B-05A-01

B-05 A-60 A-0 A-0 A-15A-04

** A-15

Service spaces(low risk) (5) C5 A-60 A-0 A-0 A-0 * A-0

Machinery spacesof category A (6) * A-0 A-0 A-60 * A-60

Other machineryspaces (7) A-02 A-0 A-0 * A-0

Cargo spaces (8) * A-0 * A-0Service spaces(high risk) (9) A-02 * A-30

Open decks (10) A-0Special categoryand ro-ro spaces (11) A-0



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Table 2.2.5.2-2Fire integrity of decks separating adjacent spaces

above SpaceSpacesbelow categ.

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11)

Control stations (1) A-0 A-0 A-0 A-0 A-0 A-60 A-0 A-0 A-0 * A-30Corridors (2) A-0 * * A-0 * A-60 A-0 A-0 A-0 * A-0Accommodationspaces (3) A-60 A-0 * A-0 * A-60 A-0 A-0 A-0 * A-30

A-04

Stairways (4) A-0 A-0 A-0 * A-0 A-60 A-0 A-0 A-0 * A-0Service spaces(low risk) (5) A-15 A-0 A-0 A-0 * A-60 A-0 A-0 A-0 * A-0

Machinery spacesof category A (6) A-60 A-60 A-60 A-60 A-60 * A-606 A-30 A-60 * A-60

Other machineryspaces (7) A-15 A-0 A-0 A-0 A-0 A-0 * A-0 A-0 * A-0

Cargo spaces (8) A-60 A-0 A-0 A-0 A-0 A-0 A-0 * A-0 * A-0Service spaces(high risk)) (9) A-60 A-30

A-04A-30A-04

A-30A-04 A-0 A-60 A-0 A-0 A-0 * A-30

Open decks (10) * * * * * * * * * − A-0Special categoryand ro-ro spaces (11) A-60 A-15 A-30

A-04 A-15 A-0 A-30 A-0 A-0 A-30 A-0 A-0

Notes to be applied to Table 2.2.5.2-1 and Table 2.2.5.2-2, as appropriate:1. For clarification as to which applies, see 2.2.3 and 2.2.6.2. Where spaces are of the same numerical category and superscript “2” appears, a bulkhead or deck of the rating shown

in the tables is only required when the adjacent spaces are for a different purpose (e.g., in category (9)) A galley nextto galley does not require a bulkhead, but a galley next to a paint locker requires an “A-0” bulkhead.

3. Bulkheads separating the wheelhouse and chartrooom from each other may be of “B-0” rating. No fire rating is re-quired for those partitions separating the navigation bridge and the safety centre when the latter is within the naviga-tion bridge.

4. See paragraphs 2.2.5.2.3 and 2.2.5.2.4.5. For the application of 2.2.2.4, “B-0” and “C”, where appearing in the Table 2.2.5-1 shall be read as A-0.6. Fire inslulation need not be fitted if the machinery spaces in category (7) have little or no fire risk, i.e. if do not con-

tain machinery using fuel oil or having a pressure lubrication system.7. Where an asterisk appears in the tables 2.2.5.2-1 and 2.2.5.2-2, the division is required to be of steel or other equiva-

lent material but is not required to be of “A” class standard.However, where a deck, except in a category (10) space, is penetrated for the passage of electric cables, pipes andvent ducts, such penetrations shall be made tight to prevent the passage of flame and smoke. Divisions between con-trol stations (emergency generators) and open decks may have air intake openings without means for closure, unless afixed gas fire-extinguishing system is fitted.For the application of 2.2.2.4 an asterisk, where appearing in the Table 2.2.5.2-2, except for categories (8) and (10),shall be read as “A-0”.

2.2.6 Protection of stairways and lifts inaccommodation, service and controlstations area.

2.2.6.1 Stairways shall be within enclosures formed of"A" class divisions, with positive means of closure at allopenings, except that:

.1 a stairway connecting only two decks neednot be enclosed, provided the integrity ofthe deck is maintained by proper bulk-heads or doors in one tween-deck space.When a stairway is closed in one 'tween-deck space, the stairway enclosure shall beprotected in accordance with the tables fordecks 2.2.4.2-2 or 2.2.5.2-2; and

.2 stairways may be fitted in the open in apublic space, provided they lie whollywithin the such public space.

2.2.6.2 Lift trunks shall be so fitted as to prevent thepassage of smoke and flame from one 'tween-deck to anotherand shall be provided with means of closing so as to permitthe control of draught and smoke.

Machinery for lifts located within stairway en-closures shall be arranged in a separate room, surrounded bysteel boundaries, except that small passages for lift cables arepermitted.

Lifts which open into spaces other than corri-dors, public spaces, special category spaces, stairways andexternal areas shall not open into stairways included in themeans of escape.


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In addition to the above, lockers of non-combustible material, providing storage for non-hazardoussafety equipment required by these regulations, may be per-mitted. Drinking water dispensers and ice cube machines maybe permitted in corridors provided they are fixed and do notrestrict the width of the escape routes. This applies as well todecorative flower or plant arrangements, statues or other ob-jects of art such as paintings and tapestries in corridors andstairways.

2.2.6.3 Furniture in stairway enclosures shall be limitedto seating. It shall be fixed, limited to six seats on each deck ineach stairway enclosure, be of restricted fire risk determinedin accordance with the FTP Code, and shall not restrict thepassenger escape route. The Register may permit additionalseating in the main reception area within a stairway enclosureif it is fixed, non-combustible and does not restrict the passen-ger escape route. Furniture shall not be permitted in passengerand crew corridors forming escape routes in cabin areas.

2.2.7 Protection of openings in fire-resistingdivisions

2.2.7.1 Except for hatches between cargo spaces, specialcategory spaces, store rooms, and baggage spaces, and be-tween such spaces and the weather deck all openings shall beprovided with permanently attached means of closing whichshall be at least as effective for resisting fires as the divisionsin which they are fitted.

2.2.7.2 The construction of doors and door frames in“A” class divisions, with the means of securing them whenclosed, shall provide resistance to fire as well as to the passageof smoke and flame equivalent to that of the bulkheads inwhich the doors are situated, this being determined in accor-dance with the FTP Code. Such doors and door frames shallbe constructed of steel or other equivalent material. Watertightdoors need not be insulated.

2.2.7.3 Fire doors in main vertical zone bulkheads, gal-ley boundaries and stairways enclosures, other than power-operated watertight doors and those which are normallylocked, shall satisfy the following requirements:

.1 the doors shall be self-closing and be ca-pable of closing against an angle of incli-nation of up to 3,5o opposing closure;

.2 the approximate time of closure for hingedfire doors shall be no more than 40 s andno less than 10 s from the beginning oftheir movement with the ship in uprightposition. The approximate uniform rate ofclosure for sliding fire doors shall be of nomore than 0.2 m/s and no less than 0.1 m/swith the ship in the upright position;

.3 the doors, except those for emergency es-cape trunks, shall be capable of remoterelease from the continuously mannedcentral control station, either simultane-ously or in groups and shall be capable ofrelease also individually from a position atboth sides of the door. Release switchesshall have an on-off function to preventautomatic resetting of the system;

.4 hold-back hooks not subject to centralcontrol station release are prohibited;

.5 a door closed remotely from the centralcontrol station shall be capable of being re-opened at both sides of the door by localcontrol. After such local opening, the doorshall automatically close again;

.6 indication shall be provided at the fire doorindicator panel in the continuously mannedcentral control station whether each door isclosed;

.7 the release mechanism shall be so de-signed that the door will automaticallyclose in the event of disruption of the con-trol system or central power supply;

.8 local power accumulators for power-operated doors shall be provided in theimmediate vicinity of the doors to enablethe doors to be operated after disruption ofthe control system or main source of elec-tric power at least ten times (fully openedand closed) using the local controls;

.9 disruption of the control system or mainsource of electric power at one door shallnot impair the safe functioning of the otherdoors;

.10 remote-released sliding or power-operateddoors shall be equipped with an alarm thatsounds for at least 5 s but no more than 10s, after the door is released from the cen-tral control station and before the door be-gins to move and continues sounding untilthe door is completely closed;

.11 a door designed to re-open upon contact-ing an object in its path shall re-open notmore than 1 m from the point of contact;

.12 double-leaf doors equipped with a latchnecessary to their fire integrity shall have alatch that is automatically activated by theoperation of the doors when released bythe control system;

.13 doors giving direct access to special cate-gory spaces which are power-operated andautomatically closed need not be equippedwith the alarms and remote-releasemechanisms required in .3 and .10 above;

.14 the components of the local control systemshall be accessible for maintenance andadjusting; and

.15 power-operated doors shall be providedwith a control system of an approved typewhich shall be able to operate in case offire, this being determined in accordancewith the FTP Code. This system shall sat-isfy the following requirements:.15.1 the control system shall be able to

operate the door at the temperatureof at least 200 oC for at least 60 min,served by the power supply;

.15.2 the power supply for all other doorsnot subject to fire shall not be im-paired; and

.15.3 at temperatures exceeding 200 oC thecontrol system shall be automaticallyisolated from the power supply and


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shall be capable of keeping the doorclosed up to at least 945 oC.

2.2.7.4 In ships carrying not more than 36 passengers,where a space is protected by an automatic sprinkler fire de-tection and fire alarm system complying with the requirementsof section 4.2 or fitted with a continuous “B” class ceiling,openings in decks not forming steps in main vertical zones norbounding horizontal zones shall be closed reasonably tight andsuch decks shall meet the “A” class integrity requirements inso far as is reasonable and practicable in the opinion of theRegister.

2.2.7.5 The requirements for "A" class integrity of theouter boundaries of a ship shall not apply to glass partitions,windows and sidescuttles, provided that there is no require-ment for such boundaries to have “A” class integrity in2.2.7.10. The requirements for “A” class integrity of the outerboundaries of the ship shall not apply to exterior doors, exceptfor those in superstructures and deckhouses facing life-savingappliances, embarkation and external assembly station areas,external stairs and open decks used for escape routes. Stairwayenclosure doors need not meet this requirement.

2.2.7.6 Except for watertight doors, weathertight doors,doors leading to the open deck and doors which need to bereasonably gastight, all "A" class doors located in stairways,public spaces and main vertical zones bulkheads in escaperoutes shall be equipped with a self-closing hose port. Thematerial, construction and fire resistance of the hose port shallbe equivalent to the door into which it is fitted, and shall be a150 mm square clear opening with the door closed and shallbe inset into the lower edge of the door, opposite the doorhinges, or in the case of sliding doors, nearest the opening.

2.2.7.7 For the requirements with regard to the ventila-tion ducts when passing through the main verticale zone divi-sion see Rules, Part 8 – Piping, 7.2 and 7.3.

2.2.7.8 Cabin doors in "B" class divisions shall be of aself-closing type.

Hold-back devices are not permitted.

2.2.7.9 The requirements for “B” class integrity of theouter boundaries of a ship shall not apply to glass partitions,windows and sidescuttles. Similarly, the requirements for “B”class integrity shall not apply to exterior doors in superstruc-tures and deckhouses. For ships carrying not more than 36passengers, the Register may permit the use of combustiblematerials in doors separating cabins from the individual inte-rior sanitary spaces such as showers.

2.2.7.10 Windows facing life-saving appliances, embar-kation and assembly stations, external stairs and open decksused for escape routes, and windows situated below liferaftand escape slide embarkation areas shall have fire integrity asrequired in Table 2.2.4.2.1. Where automatic dedicated sprin-kler heads are provided for windows, "A-0" windows may beaccepted as equivalent. Windows located in the ship's sidebelow the lifeboat embarkation areas shall have the fire integ-rity at least equal to "A-0" class.

To be considered under this paragraph, thesprinkler heads shall either be:

.1 dedicated heads located above the win-dows, and installed in addition to the con-ventional ceiling sprinklers; or

.2 conventional ceiling sprinkler heads ar-ranged such that the window is protectedby an average application rate of at least 5l/m2 and the additional window area is in-cluded in the calculation of the area ofcoverage; or

.3 water-mist nozzles that have been testedand approved in accordance with theguidelines accepted by the Register (seeresolution A.800(19)).

2.2.8 Means of escape

2.2.8.1 Means of escape, maintained in a safe conditionand clear of obstacles shall be provided, so that persons onboard can safely and swiftly escape to the lifeboat and liferaftembarkation deck.

2.2.8.2 Unless expressly provided otherwise in thisregulation, at least two widely separated and ready means ofescape shall be provided from all spaces or groups of spaces.

2.2.8.3 Lifts shall not be considered as forming one ofthe means of escape as required by this regulation.

2.2.8.4 Stairways and ladders shall be so arranged as toprovide ready means of escape to the lifeboat and liferaft em-barkation deck from passenger and crew accommodationspaces and from spaces in which the crew is normally em-ployed, other than machinery spaces.

2.2.8.5 Unless expressly provided otherwise in thisregulation, a corridor, lobby, or part of a corridor from whichthere is only one route of escape shall be prohibited. Dead-endcorridors used in service areas which are necessary for thepractical utility of the ship, such as fuel oil stations and ath-wartship supply corridors, shall be permitted, provided suchdead-end corridors are separated from crew accommodationareas and are inaccessible from passenger accommodation ar-eas. Also, a part of a corridor that has a depth not exceeding itswidth is considered a recess or local extension and is permit-ted.

2.2.8.6 All stairways in accommodation and servicespaces and control stations shall be of steel frame constructionexcept where the Register sanctions the use of other equivalentmaterial.

2.2.8.7 If a radiotelegraph station has no direct access tothe open deck, two means of escape from, or access to, thestation shall be provided, one of which may be a porthole orwindow of sufficient size or other means to the satisfaction ofthe Register.

2.2.8.8 Doors in escape routes shall, in general, open inway of the direction of escape, except that:

.1 individual cabin doors may open into thecabins in order to avoid injury to personsin the corridor when the door is opened;and

.2 doors in vertical emergency escape trunksmay open out of the trunk in order to per-mit the trunk to be used both for escapeand for access.

2.2.8.9 Below the bulkhead deck, two means of escape,at least on of which shall be independent of watertight doors,


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shall be provided from each watertight compartment or simi-larly restricted space or group of spaces. Exceptionally, theRegister may dispense with one of the means of escape forcrew spaces that are entered only occasionally, if the requiredescape route is independent of watertight doors.

2.2.8.10 Where the Register has granted dispensation un-der the provisions of paragraph 2.2.8.9, this sole means of es-cape shall provide safe escape. However, stairways shall notbe less than 800 mm in clear width with handrails on bothsides.

2.2.8.11 Above the bulkhead deck there shall be providedat least two means of escape from each main vertical zone orsimilarly restricted space or group of spaces, at least one ofwhich shall give access to a stairway forming a vertical es-cape.

2.2.8.12 Stairway enclosures in accommodation andservice spaces shall have direct access from the corridors andbe of a sufficient area to prevent congestion, having in viewthe number of persons likely to use them in an emergency.Within the perimeter of such stairway enclosures, only publictoilets, lockers of non-combustible material providing storagefor non-hazardous safety equipment and open informationcounters are permitted. Only corridors, lifts, public toilets,special category spaces and open ro-ro spaces to which anypassengers carried can have access, other escape stairways asrequired in 2.2.8.13 and external areas are permitted to havedirect access to these stairway enclosures. Public spaces mayalso have direct access to stairway enclosures except for thebackstage of a theatre. Small corridors or “lobbies” used toseparate an enclosed stairway from galleys or main laundriesmay have direct access to the stairway provided they have aminimum deck area of 4.5 m2, a width of no less than 900 mmand contain a fire hose station.

2.2.8.13 At least one of the means of escape as requiredin 2.2.8.9 and 2.2.8.11 shall consist of a readily accessible en-closed stairway, which shall provide continuous fire shelterfrom the level of its origin to the appropriate lifeboat and lifer-aft embarkation decks, or to the uppermost weather deck if theembarkation deck does not extend to the main vertical zonebeing considered. In the latter case, direct access to the em-barkation deck by way of external open stairways and pas-sageways shall be provided and shall have emergency lightingas required in Rules, Part 12 – Electrical Equipment, 19.1 andslip-free surfaces underfoot. Boundaries facing external openstairways and passageways forming part of an escape route anboundaries in such a position that their failure during a firewould impede escape to the embarkation deck shall have fireintegrity, including insulation values, in accordance with ta-bles in 2.2.4 and 2.2.5, as appropriate.

2.2.8.14 Protection of access from the stairway enclo-sures to the lifeboat and liferaft embarkation areas shall beprovided either directly or through protected internal routeswhich have fire integrity and insulation values for stairwayenclosures as determined by tables in 2.2.4 and 2.2.5, as ap-propriate.

2.2.8.15 Stairways serving only a space and a balcony inthat space shall not be considered as forming one of the re-quired means of escape.

2.2.8.16 Each level within an atrium shall have twomeans of escape, one of which shall give direct access to an

enclosed vertical means of escape meeting the requirements in2.2.8.13.

2.2.8.17 The widths, number and continuity of escapesshall be in accordance with the requirements in the FSS Code.

2.2.8.18 In addition to the emergency lighting required inRules, Part 12 – Electrical Equipment 19.1, the means of es-cape, including stairways and exits, shall be marked by light-ing or photoluminescent strip indicators placed not more than300 mm above the deck at all points of the escape route, in-cluding angles and intersections. The marking must enablepassengers to identify the routes of escape and readily identifythe escape exits. If electric illumination is used, it shall besupplied by the emergency source of power and it shall be soarranged that the failure of any single light or cut in a lightingstrip will not result in the marking being ineffective. Addition-ally, escape route signs and fire equipment location markingsshall be of photoluminescent material or marked by lighting.The Register shall ensure that such lighting or photolumines-cent equipment has been evaluated, tested and applied in ac-cordance with the FSS Code (see Rules, Part 12 – ElectricalEquipment, 19.1.3).

2.2.8.19 In passenger ships carrying more than 36 pas-sengers, the requirements of 2.2.8.18 shall also apply to thecrew accommodation areas.

2.2.8.20 In lieu of the escape route lighting system re-quired in 2.2.8.18 alternative evacuation guidance systemsmay be accepted if approved by the Register, based on theguidelines given in MSC/Circ.1167 and MSC/Circ.1168.

2.2.8.21 Cabin and stateroom doors shall not require keysto unlock them from inside the room. Neither shall there beany doors along any designated escape route which requirekeys to unlock them when moving in the direction of escape.

2.2.8.22 Escape doors from public spaces that are nor-mally latched shall be fitted with a means of quick release.Such means shall consist of a door-latching mechanism incor-porating a device that releases the latch upon the applicationof a force in the direction of escape flow. Quick releasemechanism shall be designed and installed to the satisfactionof the Register and, in particular:

.1 consist of bars or panels, the actuatingportion of which extends across at leastone half of the width of the door leaf, atleast 760 mm and not more than 1,120 mmabove the deck;

.2 cause the latch to release when a force notexceeding 67 N is applied; and

.3 not be equipped with any locking device,set screw or other arrangement that pre-vents the release of the latch when pres-sure is applied to the releasing device.

2.2.8.23 For the requirements regarding the number andarrangements of emergency escape breathing devices (EEBD)see Table 5.1.2-1, item 18.

2.2.9 Means of escape, additionalrequirements for ro-ro passenger ships

2.2.9.1 Escape routes shall be provided from everynormally occupied space on the ship to an assembly station.These escape routes shall be arranged so as to provide the


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most direct route possible to the assembly station (seeMSC/Circ.777), and shall be marked with symbols based onthe guidelines developed by the Organization (see resolutionA.760(18)).

2.2.9.2 he escape route from cabins to stairway enclo-sures shall be as direct as possible, with a minimum number ofchanges in direction. It shall not be necessary to cross fromone side of the ship to the other to reach an escape route. Itshall not be necessary to climb more than two decks up ordown in order to reach an assembly station or open deck fromany passenger space.

2.2.9.3 External routes shall be provided from opendecks, as referred to in 2.2.9.2, to the survival craft embarka-tion stations.

2.2.9.4 Where enclosed spaces adjoin an open deck,openings from the enclosed space to the open deck shall,where practicable, be capable of being used as an emergencyexit.

2.2.9.5 Escape routes shall not be obstructed by furni-ture and other obstructions. With the exception of tables andchairs which may be cleared to provided open space, cabinetsand other heavy furnishings in public spaces and along escaperoutes shall be secured in place to prevent shifting if the shiprolls or lists. Floor coverings shall also be secured in place.When the ship is under way, escape routes shall be kept clearof obstructions such as cleaning carts, bedding, luggage andboxes of goods.

2.2.9.6 Decks shall be sequentially numbered, startingwith “1” at the tank top or lowest deck. The numbers shall beprominently displayed at stair landings and lift lobbies. Decksmay also be named, but the deck number shall always be dis-played with the name.

2.2.9.7 Simple “mimic” plans showing the “you arehere” position and escape routes marked by arrows shall beprominently displayed on the inside of each cabin door and inpublic spaces. The plan shall show the directions of escapeand shall be properly oriented in relation to its position on theship.

2.2.9.8 Handrails or other handholds shall be providedin corridors along the entire escape route so that a firm hand-hold is available at every step of the way, where possible, tothe assembly stations and embarkation stations. Such handrailsshall be provided on both sides of longitudinal corridors morethan 1.8 m in width and transverse corridors more than 1 m inwidth. Particular attention shall be paid to the need to be ableto cross lobbies, atriums and other large open spaces along es-cape routes. Handrails and other handholds shall be of suchstrength as to withstand a distributed horizontal load of 750N/m applied in the direction of the centre of the corridor orspace, and a distributed vertical load of 750 N/m applied in thedownward direction. The two loads need not be applied si-multaneously.

2.2.9.9 The lowest 0.5 m of bulkheads and other parti-tions forming vertical divisions along escape routes shall beable to sustain a load of 750 N/m to allow them to be used aswalking surfaces from the side of the escape route with theship at large angles of heel.

2.2.9.10 Escape routes shall be evaluated by an evacua-tion analysis early in the design process (see MSC/Circ.909).

The analysis shall be used to identify and eliminate, as far aspracticable, congestion which may develop during an aban-donment, due to normal movement of passengers and crewalong escape routes, including the possibility that crew mayneed to move along these routes in a direction opposite to themovement of passengers. In addition, the analysis shall beused to demonstrate that escape arrangements are sufficientlyflexible to provide for the possibility that certain escaperoutes, assembly stations, embarkation stations or survivalcraft may not be available as a result of a casualty.

2.2.10 Means of escape from machinery spaces

2.2.10.1 Means of escape from each machinery space inpassenger ships shall comply with requirements specifiedhereinafter.

2.2.10.2 Where the space is below the bulkhead deck, thetwo means of escape shall consist of either:

.1 two sets of steel ladders, as widely sepa-rated as possible, leading to doors in theupper part of the space, similarly separatedand from which access is provided to theappropriate lifeboat and liferaft embarka-tion decks. One of these ladders shall belocated within a protected enclosure thatsatisfies requirements specified in 2.2.4 forcategory (2), or requirements in 2.2.5 forcategory (4), as appropriate, from thelower part of the space it serves to a safeposition outside the space. Self-closing firedoors of the same fire integrity standardsshall be fitted in the enclosure. The laddershall be fixed in such a way that heat is nottransferred into the enclosure through non-insulated fixing points. The protected en-closure shall have minimum internal di-mensions of at least 800 mm x 800 mm,and shall have emergency lighting provi-sions; or

.2 one steel ladder leading to a door in theupper part of the space from which accessis provided to the embarkation deck andadditionally, in he lower part of the spaceand in a position well separated from theladder referred to, a steel door capable ofbeing operated from each side and whichprovides access to a safe escape route fromthe lower part of the space to the embar-kation deck.

2.2.10.3 Where the space is above the bulkhead deck, thetwo means of escape shall be as widely separated as possibleand the doors leading from such means of escape shall be in aposition from which access is provided to the appropriate life-boat and liferaft embarkation decks. Where such means of es-cape require the use of ladders, these shall be of steel.

2.2.10.4 In a ship of less than 1,000 gross tonnage, theRegister may dispense with one of the means of escape, dueregard being paid to the width and disposition of the upperpart of the space. In a ship of 1,000 gross tonnage and above,the Register may dispense with one means of escape from anysuch space, including a normally unattended auxiliary ma-chinery space, so long as either a door or a steel ladder pro-


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vides a safe escape route to the embarkation deck, due regardbeing paid to the nature and location of the space and whetherpersons are normally employed in that space. In the steeringgear space, a second means of escape shall be provided whenthe emergency steering position is located in that space unlessthere is direct access to the open deck.

2.2.10.5 Two means of escape shall be provided from amachinery control room located within a machinery space, atleast one of which will provide continuous fire shelter to a safeposition outside the machinery space.

2.2.10.6 One of the escape routes from the machineryspaces where the crew is normally employed shall avoid directaccess to any special category space.

2.2.11 Protection of special category spaces andro-ro spaces

2.2.11.1 In passenger ships provided with special cate-gory and ro-ro spaces, where the main vertical zoning requiredin 2.2.2 may not be practicable, equivalent protection must beobtained in such spaces on the basis of a horizontal zone con-cept.

Horizontal zone may include special categoryand ro-ro spaces on more than one deck provided that the totaloverall clear height for vehicles i.e the sum of distances be-tween deck and web frames of the decks forming one hori-zontal zone does not exceed 10 m.

2.2.11.2 Notwithstanding the requirements in 2.2.4, inpassenger ships carrying more than 36 passengers the bound-ary bulkheads and decks of special category and ro-ro spacesshall be insulated to "A-60" class standard. However, where acategory (5), (9) or (10) space is on one side of the divisionthe standard may be reduced to "A-0". Where fuel oil tanksare below a special category and ro-ro space, the integrity ofthe deck between such spaces may be reduced to "A-0" stan-dard.

2.2.11.3 In passenger ships carrying not more than 36passengers the boundary bulkheads of special category and ro-ro spaces shall be insulated as required for category (11)spaces in Table 2.2.5.2-1 and the horizontal boundaries as re-quired for category (11) spaces in Table 2.2.5.2-2.

2.2.11.4 In passenger ships carrying not more than 36passengers, the boundary bulkheads of closed and open ro-rospaces shall have a fire integrity as required for category (8)spaces in Table 2.2.5.2-1 and the horizontal boundaries as re-quired for category (8) spaces in Table 2.2.5.2-2.

2.2.11.5 The requirements of this chapter with regard tothe ventilation systems and openings and penetrations in “A”class divisions for maintaining the fire integrity of verticalzones shall be applied equally to decks and bulkheads formingthe boundaries of the special category and ro-ro spaces andseparating horizontal zones from each other and from the re-mainder of the ship.

2.2.11.6 In special category and open ro-ro spaces towhich any passengers carried can have access, the number anddisposition of the means of escape both below and above thebulkhead deck shall be to the satisfaction of the Register and,in general, the safety of access to the embarkation deck shallbe at least equivalent to that provided for under paragraphs2.2.8.9, 2.2.8.11, 2.2.8.13 and 2.2.8.14.

2.2.11.7 The spaces referred to in 2.2.11.6 shall be pro-vided with designated walkways to the means of escape with abreadth of at least 600 mm. The stowage arrangements for thevehicles shall maintain the walkways clear at all times.

2.2.11.8 At least two means of escape shall be providedin ro-ro spaces where the crew are normally employed. Theescape routes shall provide a safe escape to the lifeboat andliferaft embarkation decks and shall be located at the fore andaft ends of the space.

2.2.11.9 Indicators shall be provided on the navigatingbridge which shall indicate when any fire door leading to orfrom the special category spaces is closed.

2.2.11.10 Permanent openings for ventilation in the sideplating, the ends or deckhead of special category and ro-rospaces shall be so situated that a fire in these spaces does notendanger stowage areas and embarkation stations for survivalcraft and accommodation spaces, service spaces and controlstations in superstructures and deckhouses located above suchspaces.

2.2.12 Safety centre on passenger ships

2.2.12.1 Passenger ships shall have on board a safetycentre, as defined in 1.2.2.40, complying with requirements ofthis section.

2.2.12.2 The safety centre shall either be a part of thenavigation bridge or be located in a separate space adjacent toand having direct access to the navigation bridge, so that themanagement of emergencies can be performed without dis-tracting watch officers from their navigational duties.

2.2.12.3 The layout and ergonomic design of the safetycentre shall take into account the guidelines developed by theOrganization, as appropriate.

2.2.12.4 Means of communication between the safetycentre, the central control station, the navigation bridge, theengine control room, the storage room(s) for fire extinguishingsystem(s) and fire equipment lockers shall be provided.

2.2.12.5 Notwithstanding the requirements set out else-where in other Parts of Rules the full functionality (operation,control, monitoring or any combination thereof, as required)of the safety systems listed below shall be available from thesafety centre:

.1 all powered ventilation systems;

.2 fire doors;

.3 general emergency alarm system;

.4 public address system;

.5 electrically powered evacuation guidancesystems;

.6 watertight and semi-watertight doors;

.7 indicators for shell doors, loading doorsand other closing appliances;

.8 water leakage of inner/outer bow doors,stern doors and any other shell door;

.9 television surveillance system;

.10 fire detection and alarm system;

.11 fixed fire-fighting local application sys-tem(s);

.12 sprinkler and equivalent systems;

.13 water-based systems for machinery spaces;

.14 alarm to summon the crew;


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.15 atrium smoke extraction system;

.16 flooding detection systems; and

.17 fire pumps and emergency fire pumps.

2.2.13 Casualty threshold, safe return to portand safe areas

Application

2.2.13.1 Passenger ships having length, as defined inRules, Part 5 – Subdivision, 1.2.1 of 120 m or more or havingthree or more main vertical zones shall comply with require-ments of this section.

2.2.13.2 Ships subject to this section shall meet the de-sign criteria for a safe return to port under its own propulsion,see 2.2.13.4, after a casualty that does not exceed the casualtythreshold stipulated in 2.2.13.3, and shall comply with func-tional requirements and performance standards for safe areasprescribed in 2.2.13.5.

Casualty threshold

2.2.13.3 The casualty threshold, in the context of fire,shall include:

.1 loss of space of origin up to the nearest“A” class boundaries, which may be a partof the space of origin, if the space of originis protected by a fixed fire-extinguishingsystem; or

.2 loss of the space of origin and adjacentspaces up to the nearest “A” class bounda-ries, which are not part of the space of ori-gin.

Safe return to port

2.2.13.4 When fire damage does not exceed the casualtythreshold indicated in 2.2.13.3, the ship shall be capable ofreturning to port while providing a safe area as defined in1.2.2.39. To be deemed capable of returning to port, the fol-lowing systems shall remain operational in the remaining partof the ship not affected by fire (see MSC.1/Circ. 1214):

.1 propulsion;

.2 steering systems and steering-control sys-tems;

.3 navigational systems;

.4 systems for fill, transfer and service of fueloil;

.5 internal communication between thebridge, engineering spaces, safety centre,fire-fighting and damage control teams,and as required for passenger and crewnotification and mustering;

.6 external communication;

.7 fire main system;

.8 fixed fire-extinguishing systems;

.9 fire and smoke detection system;

.10 bilge and ballast system;

.11 power-operated watertight and semi-watertight doors;

.12 systems intended to support “safe areas” asindicated in paragraph 2.2.13.5.2;

.13 flooding detection systems; and

.14 other systems determined by the Registerto be vital to damage control efforts.

Safe area(s)

2.2.13.5 Following functional requirements shall be ob-served:

.1 the safe area(s) shall generally be internalspace(s); however, the use of an externalspace as a safe area may be allowed by theRegister taking into account any restrictiondue to the area of operation and relevantexpected environmental conditions;

.2 the safe area(s) shall provide all occupantswith the following basic services (seeMSC.1/Circ. 1214) to ensure that thehealth of passengers and crew is main-tained:.1 sanitation;.2 water;.3 food;.4 alternate space for medical care (see

MSC/Circ. 1129);.5 shelter from the weather;.6 means of preventing heat stress and

hypothermia;.7 light; and.8 ventilation;

.3 ventilation design shall reduce the risk thatsmoke and hot gases could affect the useof the safe area(s); and

.4 means of access to life-saving appliancesshall be provided from each area identifiedor used as a safe area, taking into accountthat a main vertical zone may not be avail-able for internal transit.

Design criteria for systems to remain operational after afire casualty

2.2.13.6 For the design criteria for systems required toremain operational for supporting the orderly evacuation andabandonment of a ship, if the casualty threshold, as defined in2.2.13.3, is exceeded (see 2.2.13.7 to 2.2.13.9 andMSC.1/Circ. 1214).

2.2.13.7 In case any one main vertical zone is unservice-able due to fire, the following systems shall be so arrangedand segregated as to remain operational:

.1 fire main;

.2 internal communications (in support offire-fighting as required for passenger andcrew notification and evacuation);

.3 means of external communications;

.4 bilge systems for removal of fire-fightingwater;

.5 lighting along escape routes, at assemblystations and at embarkation stations of life-saving appliances; and

.6 guidance systems for evacuation shall beavailable.

2.2.13.8 The above systems shall be capable of operationfor at least 3 h based on the assumption of no damage outsidethe unserviceable main vertical zone. These systems are notrequired to remain operational within the unserviceable mainvertical zones.

2.2.13.9 Cabling and piping within a trunk constructed toan “A-60” standard shall be deemed to remain intact and


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serviceable while passing through the unserviceable main ver-tical zone for the purposes of 2.2.13.7. An equivalent degreeof protection for cabling and piping may be approved by theRegister.

2.3 CARGO SHIPS

2.3.1 Application, methods of protection andconstruction of bulkheads inaccommodation area

2.3.1.1 The requirements of this section are in additionto the requirements specified in section 2.1 and shall apply tocargo ships of 500 gross tonnage and upwards.

Unless expressly provided otherwise, the appli-cation of these requirements to the ships of less than 500 grosstonnage but not less than 300, is subject to special considera-tion by the Register in each particular case.

2.3.1.2 One of the following methods of protection shallbe addopted in accommodation and service spaces, exceptspaces which affard no substantial fire risk such as voidspaces, sanitary spaces, etc., and control stations:

.1 Method IC - The construction of internaldivisional bulkheads of non-combustible"B" or "C" class divisions (see 2.3.1.5.1)and installation of a fixed fire detectionand fire alarm system as required in4.1.1.4.1; or

.2 Method IIC - There is, generally, no re-striction on the type of internal divisionalbulkheads (see 2.3.1.5.2), subject the re-quirements for fitting of an automaticsprinkler, fire detection and fire alarmsystem and, in addition, a fixed fire detec-tion and fire alarm system (see Table3.1.2-1, Note 2.3 and 4.1.1.4.1) are com-plied with; or

.3 Method IIIC - There is, generally, no re-striction on the type of internal divisionalbulkheads (see 2.3.1.5.3), subject the re-quirements for fitting of a fixed fire detec-tion and fire alarm system as required in4.1.1.4.2 are complied with.

2.3.1.3 The requirements for the use of non-combustiblematerials in construction and insulation of boundary bulkheadsof machinery spaces, control stations, service spaces, etc., andthe protection of stairway enclosures and corridors (see sec-tion 2.1) shall be common to all three methods of protectionotlined in 2.3.1.2.

2.3.1.4 Bulkheads within accommodation area, requiredto be “B” class divisions, shall extend from deck to deck andto the shell or other boundaries. However, where a continuous“B” class ceiling or lining is fitted on both sides of the bulk-head, the bulkhead may terminate at the continuous ceiling orlining (see MSC/Circ.917 and MSC/Circ.917/Corr.1).

2.3.1.5 Depending upon the adopted method of protec-tion, bulkheads within accommodation area not required else-where to be “A” or “B” class divisions, shall comply withfollowing:

.1 For method IC – bulkheads shall be of atleast “C” class construction;

.2 For method IIC – there is no any restric-tion on the construction of bulkheads ex-cept in individual cases where “C” classbulkheads are required in accordance withTable 2.3.2.1-1;

.3 For method IIIC – there is no any restric-tion on the construction of bulkheads, ex-cept that the area of any accommodationspace or spaces bounded by a continuous“A” or “B” class divisions shall in no caseexceed 50 m2 and except in individualcases where “C” class bulkheads are re-quired in accordance with Table 2.3.2.1-1.However consideration may be given bythe Register to increasing this area forpublic spaces.

2.3.2 Fire integrity of bulkheads and decks

2.3.2.1 In addition to complying with the specific re-quirements for fire integrity of bulkheads and decks of cargoships, the minimum fire integrity of bulkheads and decks sepa-rating adjacent spaces shall be as prescribed in Table 2.3.2.1-1and Table 2.3.2.1-2, provided the application of tables is gov-erned as follows.

For determining the appropriate fire integritystandards to be applied to divisions between adjacent spaces,such spaces are classified according to their fire risk as shownin categories (1) to (11) below.

Where the contents and use of a space are suchthat there is a doubt as to its classification for the purpose ofthis regulation, or where it is possible to assign two or moreclassifications to a space, it shall be treated as a space withinthe relevant category having the most stringent boundary re-quirements. Smaller, enclosed rooms within a space that haveless than 30% communicating openings to that space are con-sidered separate spaces. The fire integrity of the boundarybulkheads and decks of such smaller rooms shall be as pre-scribed in tables 2.3.2.1-1 and 2.3.2.1-2. The title of eachcategory is intended to be typical rather than restrictive. Thenumber in parentheses preceding each category refers to theapplicable column or row in the tables.

(1) Control stations:Spaces containing emergencysources of power and lighting.Wheelhouse and chartroom.Spaces containing the ship’s radioequipment.Fire control stations.Control room for propulsion ma-chinery when located outside themachinery space.Spaces containing centralized firealarm equipment.

(2) Corridors:Corridors and lobbies.

(3) Accommodation spaces:Spaces as defined in 1.2.2.1 exclud-ing corridors.

(4) Stairways:


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Interior stairways, lifts, totally en-closed emergency escape trunks andescalators (other than those whollycontained within the machineryspaces) and enclosures thereto.In this connection, a stairway whichis enclosed only at one level shall beregarded as part of the space fromwhich it is not separated by a firedoor.

(5) Service spaces (low risk):Lockers and store-rooms not havingprovisions for the storage of flam-mable liquids and having areas lessthan 4 m2 and drying rooms andlaundries.


(7) Other machinery spaces:Electrical equipment rooms (seeRules, Part 12 – Electrical Equip-ment, 1.2.7), auto-telephone ex-change and air-conditioning ductspaces.Spaces as defined in 1.2.2.24, ex-cluding machinery spaces of cate-gory A.

(8) Cargo spaces:All spaces used for dry cargo ex-cluding ro-ro and vehicle spaces andtrunkways and hatchways to suchspaces.

(9) Service spaces (high risk):Galleys, pantries containing cookingappliances, saunas, paint lockers andstore-rooms having areas of 4 m2 ormore, spaces for the storage offlammable liquids, and workshopsother than those forming part of themachinery spaces.

(10) Open decks:Open deck spaces and enclosedpromenades having little or no firerisk. To be considered in this cate-gory, enclosed promenades shallhave no significant fire risk, meaningthat furnishings shall be restricted todeck furniture. In addition, suchspaces shall be naturally ventilatedby permanent openings. Air spaces(the spaces outside superstructuresand deckhouses);

(11) Ro-ro and vehicle spaces:Spaces as defined in 1.2.2..35. and1.2.2.45.

Table 2.3.2.1-1Fire integrity of bulkheads separating adjacent spaces

Spaces Spacecateg. (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11)

Control stations (1) A-05 A-0 A-60 A-0 A-15 A-60 A-15 A-60 A-60 * A-60

Corridors (2) C B-0 B-0A-03 B-0 A-60 A-0 A-0 A-0 * A-30

Accommodationspaces

(3) C1,2 B-0A-03 B-0 A-60 A-0 A-0 A-0 * A-30

Stairways (4) B-0A-03

B-0A-03 A-60 A-0 A-0 A-0 *

* A-30

Service spaces(low risk) (5) C A-60 A-0 A-0 A-0 * A-0

Machinery spacesof category A (6) * A-0 A-07 A-60 * A-606

Other machineryspaces (7) A-04 A-0 A-0 * A-0

Cargo spaces (8) * A-0 * A-0Service spaces(high risk) (9) A-04 * A-30

Open decks (10) − A-0Ro-ro and vehiclespaces

(11) *8

Sea notes following Table 2.3.2.1-2


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Space Space Spaces abovebelow categ. (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11)

Control stations (1) A-0 A-0 A-0 A-0 A-0 A-60 A-0 A-0 A-0 * A-60Corridors (2) A-0 * * A-0 * A-60 A-0 A-0 A-0 * A-30Accommodationspaces (3) A-60 A-0 * A-0 * A-60 A-0 A-0 A-0 * A-30

Stairways (4) A-0 A-0 A-0 * A-0 A-60 A-0 A-0 A-0 * A-30Service spaces(low risk) (5) A-15 A-0 A-0 A-0 * A-60 A-0 A-0 A-0 * A-0

Machinery spacesof category A (6) A-60 A-60 A-60 A-60 A-60 * A-609 A-307 A-60 * A-60

Other machineryspaces (7) A-15 A-0 A-0 A-0 A-0 A-0 * A-0 A-0 * A-0

Cargo spaces (8) A-60 A-0 A-0 A-0 A-0 A-07 A-0 * A-0 * A-0Service spaces(high risk) (9) A-60 A-0 A-0 A-0 A-0 A-60 A-0 A-0 A-04 * A-30

Open decks (10) * * * * * * * * * − *Ro-ro and vehiclespaces

(11) A-60 A-30 A-30 A-30 A-0 A-60 A-0 A-0 A-30 * *8

Notes to be applied to Table 2.3.2.1-1 and Table 2.3.2.1-21. No special requirements are imposed upon bulkheads in methods II C and III C fire protection.2. In case of method III C, “B” class bulkheads of “B-0” rating shall be provided between spaces or groups of spaces

of 50 m2 and over in area.3. For clarification as to which applies, see2.1.4.1 and 2.3.1.5.4. A bulkhead or deck between adjacent spaces which ara in the same numerical category need not be fitted if deemed

unnecessary by the Register.5. Bulkheads separating the wheelhouse, chartroom and radio room from each other may be of “B-0” rating.6. “A-0” rating may be used if no dangerous goods are intended to be carried or if such goods are stowed not less than

3 m horizontally from such a bulkhead.7. For cargo spaces in which dangerous goods are intended to be carried, see 2.7.2.1.8.1.8. Bulkheads and decks separating ro-ro spaces shall be capable of being closed rasonably gastight and such divisions

shall have “A” class integrity in so far as reasonable and practicable in the opinion of the Register, have little or nofire risk.

9. Fire insulation need not be fitted in the machinery spaces in category (7) if, in the opinion of the Register, have lit-tle or no fire risk, i.e. if they do not contain machinery using fuel oil or have not a pressure lubrication system

10. Where an asterisk appears in Tables, 2.3.2.1-1 and 2.3.2.1-2 the division is required to be of steel or other equiva-lent material but is not required to be of “A” class integrity.However, where a deck, except an open deck, is penetrated for the passage of electric cables, pipes and vent ducts,such penetrations shall be made tight to prevent the passage of flame and smoke. Divisions between control stations(emergency generators) and open decks may have air intake openings without means for closure, unless a fixed gasfire-extinguishing system is fitted.

2.3.3 Means of escape

2.3.3.1 In addition to the requirements specified in2.2.8.1 to 2.2.8.4 and 2.2.8.6 to 2.2.8.8, means of escape incargo ships shall comply with the requirements specifiedhereinafter.

2.3.3.2 At all levels of accommodation there shall beprovided at least two widely separated means of escape fromeach restricted space or group of spaces.

2.3.3.3 Below the lowest open deck the main means ofescape shall be a stairway and the second escape may be atrunk or a stairway.

2.3.3.4 Above the lowest open deck the means of escapeshall be stairways or doors to an open deck or a combinationthereof.

2.3.3.5 No dead-end corridors having a length of morethan 7 m shall be accepted. Where used, dead-end corridorsshall be separated from the passenger and special personnelaccommodation areas and shall be restricted, as far as practi-cable, to service areas which are necessary for the practicalutility of the ship.

2.3.3.6 The width, number and continuity of escaperoutes shall be in accordance with the requirements of the FSSCode.

2.3.3.7 Exceptionally, the Register may dispense withone of the means of escape, for crew spaces that are entered


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only occasionally, if the required escape route is independentof watertight doors.

2.3.3.8 For the requirements regarding number and ar-rangements of emergency escape breathing devices (EEBD)see Table 5.1.2-1, item 18.

2.3.4 Means of escape from machinery spaces

2.3.4.1 Means of escape from each machinery space incargo ships shall comply with the requirements specifiedhereinafter.

2.3.4.2 Except as provided in 2.3.4.3, two means of es-cape shall be provided from each machinery space of categoryA. In particular, one of the following provisions shall be com-plied with:

.1 two sets of steel ladders, as widely sepa-rated as possible, leading to doors in theupper part of the space, similarly separatedand from which access is provided to theopen deck. One of these ladders shall belocated within a protected enclosure thatsatisfies the requirements specified in 2.3.2for category (4), from the lower part of thespace it serves to a safe position outsidethe space. Self-closing fire doors of thesame fire integrity standards shall be fittedin the enclosure. The ladder shall be fixedin such a way that heat is not transferredinto the enclosure through non-insulatedfixing points. The enclosure shall haveminimum internal dimensions of at least800 mm x 800 mm, and shall have emer-gency lighting provisions; or

.2 one steel ladder leading to a door in theupper part of the space from which accessis provided to the open deck and, addition-ally, in the lower part of the space and in aposition well separated from the ladder re-ferred to, a steel door capable of being op-erated from each side and which providesaccess to a safe escape route from thelower part of the space to the open deck.

2.3.4.3 In a ship of less than 1,000 gross tonnage, theRegister may dispense with one of the means of escape re-quired under 2.3.4.2, due regard being paid to the dimensionand disposition of the upper part of the space. In addition, themeans of escape from machinery spaces of category A neednot comply with the requirement for an enclosed fire shelterlisted in 2.3.4.2.1. In the steering gear space, a second meansof escape shall be provided when the emergency steering po-sition is located in that space unless there is direct access tothe open deck.

2.3.4.4 From machinery spaces other than those of cate-gory A, two escape routes shall be provided except that a sin-gle escape route may be accepted for spaces that are enteredonly occasionally and for spaces where the maximum traveldistance to the door is 5 m or less.

2.4 TANKERS (≤60OC)

2.4.1 Application

2.4.1.1 The requirements of this section are in additionto the requirements specified in section 2.3, except for 2.3.2when only method IC fire protection is adopted and shall ap-ply to tankers and combination carriers of 300 gross tonnageand upwards carrying crude oil or petroleum products having aflash point not exceeding 60 oC (closed cup test), as deter-mined by an approved flashpoint apparatus, and a Reid vapourpressure which is below atmospheric pressure or other liquidproducts having a similar fire hazard (for list of products seeAnnex 2).

2.4.1.2 Unless expressly provided otherwise, the appli-cation of these requirements to the ships of less than 300 grosstonnage is subject to special consideration by the Register ineach particular case.

2.4.2 Fire integrity of bulkheads and decks

2.4.2.1 In addition to complying with the specific re-quirements for fire integrity of bulkheads and decks of tank-ers, the minimum fire integrity of bulkheads and decks sepa-rating adjacent spaces shall be as prescribed in Tables 2.4.2.1-1 and 2.4.2.1-2, provided the application of tables is governedas follows.

For determining the appropriate fire integritystandards to be applied to divisions between adjacent spaces,such spaces are classified according to their fire risk as shownin categories (1) to (10) below.

Where the contents and use of a space are suchthat there is a doubt as to its classification for the purpose ofthis regulation, or where it is possible to assign two or moreclassifications to a space, it shall be treated as a space withinthe relevant category having the most stringent boundary re-quirements. Smaller, enclosed areas within a space that haveless than 30% communicating openings to that space are con-sidered separate areas. The fire integrity of the boundary bulk-heads and decks of such smaller spaces shall be as prescribedin Table 2.4.2.1-1 and 2.4.2.1-2. The title of each category isintended to be typical rather than restrictive. The number inparentheses preceding each category refers to the applicablecolumn or row in the tables.

(1) Control stations:Spaces containing emergencysources of power and lighting.Wheelhouse and chartroom.Spaces containing the ship’s radioequipment.Fire control stations.Control room for propulsion ma-chinery when located outside themachinery space.Spaces containing centralized firealarm equipment.

(2) Corridors:Corridors and lobbies.

(3) Accommodation spaces:


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Spaces as defined in 1.2.2.1, ex-cluding corridors.

(4) Stairways:Interior stairways, lifts, totally en-closed emergency escape trunks andescalators (other than those whollycontained within the machineryspaces) and enclosures thereto.In this connection, a stairway whichis enclosed only at one level shall beregarded as part of the space fromwhich it is not separated by a firedoor.

(5) Service spaces (low-risk):Lockers and store-rooms not havingprovisions for the storage of flam-mable liquids and having areas lessthan 4 m2 and drying rooms andlaundries.


(7) Other machinery spaces:Electrical equipment rooms (seeRules, Part 12 – Electrical Equip-ment, 1.2.7), auto-telephone ex-change and air-conditioning ductspaces.

Spaces as defined in 1.2.2.24, ex-cluding machinery spaces of cate-gory A.

(8) Cargo pump rooms:Spaces containing cargo pumps andentrances and trunks to such spaces(see 1.2.3.2).

(9) Service spaces (high risk):Galleys, pantries containing cookingappliances, paint lockers, lockers andstore-rooms having areas of 4 m2 ormore, spaces for the storage offlammable liquids, saunas and work-shops other than those forming partof the machinery spaces.

(10) Open decks:Open deck spaces and enclosedpromenades having little or no firerisk. To be considered in this cate-gory, enclosed promenades shallhave no significant fire risk, meaningthat furnishings shall be restricted todeck furniture. In addition, suchspaces shall be naturally ventilatedby permanent openings. Air spaces(the spaces outside superstructuresand deckhouses).

Table 2.4.2.1-1Fire integtrity of bulkheads separating adjacent spaces

Spaces Spacecateg. (1) (2) (3) (4) (5) (6) (7) (8) (9) (10)

Control stations (1) A-03 A-0 A-60 A-0 A-15 A-60 A-15 A-60 A-60 *

Corridors (2) C B-0 B-0A-01 B-0 A-60 A-0 A-60 A-0 *

Accommodationspaces

(3) C B-0A-01 B-0 A-60 A-0 A-60 A-0 *

Stairways (4)B-0A-01

B-0A-01 A-60 A-0 A-60 A-0 *

Seervice spaces(low risk) (5) C A-60 A-0 A-60 A-0 *

Machinery spaces ofcategory A (6) * A-0 A-04 A-60 *

Other machineryspaces (7) A-02 A-0 A-0 *

Cargo pump-rooms (8) * A-60 *Service spaces(high risk) (9) A-02 *

Open decks (10) -



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above SpaceSpace belowbelow categ.

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10

Control stations (1) A-0 A-0 A-0 A-0 A-0 A-60 A-0 − A-0 *Corridors (2) A-0 * * A-0 * A-60 A-0 − A-0 *Accommodation spaces (3) A-60 A-0 * A-0 * A-60 A-0 − A-0 *Stairways (4) A-0 A-0 A-0 * A-0 A-60 A-0 − A-0 *Service spaces (low risk) (5) A-15 A-0 A-0 A-0 * A-60 A-0 − A-0 *Machinery spaces ofcategory A (6) A-60 A-60 A-60 A-60 A-60 * A-605 A-0 A-60 *

Other machinery spaces (7) A-15 A-0 A-0 A-0 A-0 A-0 * A-0 A-0 *Cargo pump-rooms (8) − − − − − A-04 A-0 * − *Service spaces (high risk) (9) A-60 A-0 A-0 A-0 A-0 A-60 A-0 − A-02 *Open decks (10) * * * * * * * * * −

Notes to be applied to Table 2.4.2.1-1 and Table 2.4.2.1-21. For clarification as to which applies see 2.1.4.1 and 2.3.1.5.2. Where spaces are of the same numerical category and superscript “2” appears, a bulkhead or deck of the rating

shown in tables is only required when the adjacent spaces are for a different purpose (e.g., in category (9)). A galleynext to a galley does not require a bulkhead, but a galley next to a paint room requires an “A-0” bulkhead.

3. Bulkheads separating the wheelhouse, chartroom and radio room from each other may be of “B-0” rating.4. For penetrations of bulkheads and decks between cargo-pump rooms and machinery spaces of category A by cargo-

pump shaft glands and similar glanded penetrations see 2.4.5.5.5. Fire insulation need not be fitted if the machinery spaces in category (7), in the opinion of the Register, has little or

no fire risk, i. e. if do not contain machinery using fuel oil or have not a pressure lubricatin system.6. Where an asterisk appears in tables 2.4.2.1-1 and 2.4.2.1-2 the division is required to be of steel or other equivalent

material, but is not required to be of “A” class integrity.However, where a deck, except an open deck, is penetrated for the passage of electric cables, pipes and vent ducts,such penetrations shall be made tight to prevent the passage of flame and smoke. Divisions between control stations(emergency generators) and open decks may have air intake openings without means for closure, unless a fixed gasfire-extinguishing system is fitted.

2.4.2.2 Exterior boundaries of superstructures and deck-houses enclosing accommodation and including any over-hanging decks which support such accommodation shall beconstructed of steel and insulated to “A-60” standard for thewhole of the portions which face the cargo area and on theoutward sides for a distance of 3 m from the end boundaryfacing the cargo area. The distance of 3 m shall be measuredhorizontally and parallel to the middle line of the ship from theboundary which faces the cargo area at each deck level. In thecase of the sides of those superstructures and deckhouses, suchinsulation shall be carried up to the underside of the deck ofthe navigation bridge.

2.4.3 Separation of cargo tanks

2.4.3.1 Cargo pump-rooms, cargo tanks, slop tanks andcofferdams shall be positioned forward of machinery spaces.However, oil fuel bunker tanks need not be forward of ma-chinery spaces. Cargo tanks and slop tanks shall be isolatedfrom machinery spaces by cofferdams, cargo pump-rooms, oilbunker tanks or ballast tanks.

The void space or ballast water tank serving asprotection for such oil fuel tanks only, need not be consideredas part of the cargo area and/or as above mentioned coffer-

dams, even though they have a cruciform contact with thecargo tank or slop tank.2.4.3.2 Pump-rooms containing pumps and their acces-sories for ballasting those spaces situated adjacent to cargotanks and slop tanks and pumps for oil fuel transfer shall beconsidered as equivalent to a cargo pump-room within thecontext of this regulation, provided that such pump-roomshave the same safety standard as that required for cargo pump-rooms. However, pump-rooms intended solely for ballast oroil fuel transfer, need not comply with the requirements of Ta-ble 3.1.2-1, item 11. The lower portion of the cargo pump-room may be recessed into machinery spaces of category A toaccommodate cargo pumps, provided that the deck head of therecess is in general not more than one third of the mouldeddepth above the keel, except that in the case of ships of notmore than 25,000 tonnes deadweight, where it can be demon-strated that for reasons of access and satisfactory piping ar-rangements this is impracticable, the Register may permit arecess in excess of such height, but not exceeding one half ofthe moulded depth above the keel.

2.4.3.3 Corner-to-corner situations forming boundariesbetween cargo tanks or slop tanks and machinery spaces shallbe avoided. When this is impracticable a cofferdam formed bya diagonal plate across the corner shall be provided separatingmachinery spaces from cargo tanks or slop tanks. The design


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and dimensions of the cofferdam shall be approved by theRegister. Corner cofferdams inaccessible for inspection shallbe suitably protected against corrosion.

2.4.3.4 Main cargo control stations, control stations, ac-commodation and service spaces (excluding isolated cargohandling gear lockers) shall be positioned aft of cargo tanks,slop tanks, and spaces which isolate cargo or slop tanks frommachinery spaces but not necessarily aft of the oil fuel bunkertanks and ballast tanks, and shall be arranged in such a waythat a single failure of a deck or bulkhead shall not permit theentry of gas or fumes from the cargo tanks into accommoda-tion and, main cargo control stations, control stations, or ac-commodation and service spaces. A recess provided in accor-dance with 2.4.3.2 need not be taken into account when theposition of these spaces is being determined.

2.4.3.5 However, where deemed necessary, the Registermay permit main cargo control stations, control stations, ac-commodation and service spaces forward of the cargo tanks,slop tanks and spaces which isolate cargo and slop tanks frommachinery spaces, but not necessarily forward of oil fuel bun-ker tanks or ballast tanks.

Machinery spaces, other than those of categoryA, may be permitted forward of the cargo tanks and slop tanksprovided they are isolated from the cargo tanks and slop tanksby cofferdams, cargo pump-rooms, oil fuel bunker tanks orballast tanks. In cases where they contain internal combustionmachinery, one approved foam-type extinguisher of at least 45l capacity or equivalent shall be arranged in addition to port-able fire extinguishers. If operation of a semi-portable fire ex-tinguisher is impracticable, this fire extinguisher may be re-placed by two additional portable fire extinguishers.

Main cargo control stations, control stations andaccommodation and service spaces shall be arranged in such away that a single failure of a deck or bulkhead shall not permitthe entry of gas or fumes from the cargo tanks into suchspaces.

In addition, where deemed necessary for thesafety of navigation of the ship, the Register may permit ma-chinery spaces containing internal combustion machinery notbeing main propulsion machinery having an output greaterthan 375 kW to be located forward of the cargo area subject toan equivalent standard of safety and appropriate availability offire extinguishing arrangements being provided to the satis-faction of the Register.

2.4.3.6 Where the fitting of a navigation position abovethe cargo area is shown to be necessary, it shall be for naviga-tion purposes only and it shall be separated from the cargotank deck by means of an open space with a height of at least2 m. The fire protection requirements for such a navigationposition shall be those required for control stations in 2.4.2,and other provisions for tankers, as applicable.

2.4.4 Restrictions on boundary openings

2.4.4.1 Except as permitted in 2.4.4.2, access doors, airinlets and openings to accommodation spaces, service spaces,control stations and machinery spaces shall not face the cargoarea. They shall be located on the transverse bulkhead notfacing the cargo area or on the outboard side of the super-structure or deckhouse at a distance of at least 4% of thelength of the ship but not less than 3 m from the end of the su-

perstructure or deckhouse facing the cargo area. This distanceneed not exceed 5 m.

Access to forecastle spaces containing sourcesod ignition may be permitted through doors facing the cargoarea provided the doors are located outside hazardous areas asdefined in Rules, Part 12 – Electrical Equipment, 19.2.3.

2.4.4.2 The Register may permit access doors in bound-ary bulkheads facing the cargo area or within the 5m limitsspecified in 2.4.4.1 to main cargo control stations and to suchservice spaces as provision rooms, store-rooms and lockers,provided they do not give access directly or indirectly to anyother space containing or provided for accommodation, con-trol stations or service spaces such as galleys, pantries orworkshops, or similar spaces containing sources of vapour ig-nition. The boundary of such a space shall be insulated to "A-60" standard, with the exception of the boundary facing thecargo area. Bolted plates for the removal of machinery may befitted within the limits specified in 2.4.4.1. Wheelhouse doorsand windows may be located within the limits specified in2.4.4.1 so long as they are designed to ensure that the wheel-house can be made rapidly and efficiently gas and vapourtight.

2.4.4.3 Windows and sidescuttles facing the cargo areaand on the sides of the superstructures and deckhouses withinthe limits specified in 2.4.4.1 shall be of the fixed (non-opening) type. Such windows and sidescuttles, except wheel-house windows, shall be constructed to “A-60” class standard,except that “A-0” class standard is acceptable for windowsand sidescuttles outside the limit specified in 2.4.2.2.

2.4.4.4 The arrangement of ventilation inlets and outletsand other deckhouse and superstructure boundary spaceopenings shall be such as to complement the requirementsspecified in Rules, Part 8 – Piping, 5.2. Such vents, especiallyfor machinery spaces, shall be situated as far aft as practicable.Due consideration in this regard shall be given when the shipis equipped to load or discharge at the stern. Source of ignitionsuch as electrical equipment shall be so arranged as to avoidan explosion hazard.

2.4.5 Protection and safety equipment in cargopump-rooms

2.4.5.1 Cargo pump-rooms shall be arranged withinseparate spaces bounded with gastight bulkheads and decksconstructed of steel, and may not give direct access to otherspaces except as permitted in 2.4.5.4.

Skylights to cargo pump-rooms shall be of steel,shall not contain any glass and shall be capable of beingclosed from outside the pump-room.

2.4.5.2 Bulkheads and decks separating cargo pump-rooms and machinery spaces of category A may be penetratedby shaft glands, electric cables and similar penetrations, pro-vided that gastight seals with efficient lubrication or othermeans of ensuring the permanence of the gas seal, approvedby the Register, are fitted in way of the bulkhead or deck (see2.4.4.5 and Rules, Part 7 - Machinery Installations, 1.12.6).

2.4.5.3 Permanent approved gastight lighting enclosuresfor illuminating cargo pump-rooms may be permitted in bulk-heads and decks separating cargo pump-rooms from other


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spaces provided they are of adequate strength and the integrityand gastightness of the bulkhead or deck is maintained.

2.4.5.4 Where there is permanent access form a pipetunnel to the cargo pump-room, a watertight door shall be fit-ted complying with the requirements specified in Rules, Part 3– Hull equipment, 7.12.4.

The watertight door shall be kept closed duringnormal operations of the ship except when access to the pipetunnel is required.

2.4.5.5 Cargo pumps, ballast pumps and strippingpumps, installed in cargo pump-rooms and driven by shaftspassing through pump-room bulkheads shall be fitted withtemperature sensing devices for bulkhead shaft glands, bear-ings and pump casings. A continuous audible and visual alarmsignal shall be automatically effected in the cargo controlroom or the pump control station.

2.4.5.6 Lighting in cargo pump-rooms, except emer-gency lighting, shall be interlocked with ventilation such thatthe ventilation shall be in operation when switching on thelighting. Failure of the ventilation system shall not cause thelighting to go out. Emergency lighting, if fitted, shall not beinterlocked.

2.4.5.7 The fixed system for continuous monitoring ofthe concentration of hydrocarbon gases in cargo pump-roomsshall be fitted.

Sequential sampling is acceptable as long as it isdedicated for the pump room only, including exhaust ducts,and the sampling time is reasonably short.

Sampling points or detector heads shall be lo-cated in suitable positions in order that potentially dangerousleakages are readily detected. Suitable positions may be theexhaust ventilation duct and lower parts of the pump-roomabove floor plates. When the hydrocarbon gas concentrationreaches a pre-set level which shall not be higher than 10% ofthe lower flammable limit, a continuous audible and visualalarm signal shall be automatically effected in the pump-room,engine control room, cargo control room and navigationbridge to alert personnel to the potential hazard.

Location and arrangement of fixed gas analysingunits of the sampling type located outside gas dangerous zonesis subject to special consideration by the Register in each par-ticular case.

2.4.5.8 All cargo pump-rooms shall be provided withbilge level monitoring devices together with audible and vis-ual alarms located in the cargo control station and on the navi-gation bridge.

2.4.5.9 Cargo pump-rooms shall be mechanically ven-tilated and discharges from the exhaust fans shall be led to asafe place on the open deck. The ventilation of these roomsshall have sufficient capacity to minimize the possibility ofaccumulation of flammable vapours. The number of airchanges shall be at least 20 per hour, based upon the grossvolume of the space. The air ducts shall be arranged so that allof the space is effectively ventilated. The ventilation shall beof the suction type using fans of the non-sparking type.

2.4.6 Safety measures in cargo tanks deck area

2.4.6.1 Means shall be provided to keep deck spillsaway from the accommodation and service areas. This may beaccomplished by provision of a permanent continuous coam-ing of a height of at least 300 mm, extending from side to side.Special consideration shall be given to the arrangements asso-ciated with stern loading.

2.4.6.2 Materials readily render ineffective by heat shallnot be used for valves, fittings, tank opening covers, cargovent piping, and cargo piping so as to prevent the spread offire to the cargo.

2.4.6.3 Drip pans for collecting cargo residues in cargolines and hoses shall be provided in the area of pipe and hoseconnections under the manifold area.

2.4.6.4 Cargo hoses and tank washing hoses shall haveelectrical continuity over their entire lengths, including cou-plings and flanges (except shore connections), and shall beearthed for removal of electrostatic charges.

2.4.7 Miscellaneous items

2.4.7.1 Access and control hatches, tank cleaningopenings and other similar openings to cargo tanks and sloptanks shall only be permitted on the weather deck and shall befitted with closing arrangements approved by the Register.

2.4.7.2 Access to fuel oil double bottom tanks situatedimmediately below the cargo tanks shall not be located incargo tanks and machinery spaces.

2.4.7.3 Pipe tunnels passing through double hull anddouble bottom spaces shall be provided with not less than twoseparate access openings fitted on opposite ends of tunnel, atdistances not exceeding 60 m, and leading to the open deck.The Register may accept pipe tunnel openings leading to thecargo pump-room, pump-room or void spaces in the cargoarea provided they are fitted with means of closure approvedby the Register (see 2.4.5.4).

Pipe tunnel shall not communicate with machin-ery spaces.

2.4.7.4 Dimensions and structure of pipe tunnels shallbe such as to ensure their complete inspection and repair ofpiping and removal of an injured person.

2.4.7.5 Pipe tunnels shall be adequately ventilated andshall comply with the requirements specified in 2.4.5.6 and2.4.5.7.

Where an enclosed pipe trunk is situated withinthe cargo tanks deck area, the requirements as specified inMSC/Circ.1276 shall be complied with.

2.4.7.6 Arrangements for ballasting permanent ballasttanks adjacent to cargo tanks shall be located in the cargo areaand shall be separate of piping systems serving spaces forwardand aft of the cofferdams.

2.4.7.7 The fore peak tank may be connected to theballast systems referred to in 2.4.7.6 subject the following re-quirements are complied with:

.1 the fore peak tank shall be considered asgas dangerous space;


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.2 the vent pipe openings shall be located atleast 3 metres away from the sources ofignition;

.3 means shall be provided on the weatherdeck for the measurement of flammablegas concentrations inside the fore peaktank;

.4 access openings and sounding arrange-ments to this space shall be located on theweather deck, or access openings may belocated in cofferdams isolating cargo tanksfrom the spaces in forecastle. In case werethe fore peak tank is isolated by a coffer-dam from the cargo tanks a bolted man-hole may be permitted in an enclosedspace with the following warning notice:“This manhole may only be opened afterthe tank has been proven gas free or elec-trical equipment in this space which is notof certified safe type has been isolated”.

2.4.7.8 Side-fenders shall be of non-sparking construc-tion, i.e. non-metallic or any other sparking hazardless con-struction.

2.4.7.9 The use of aluminium coatings is prohibited incargo tanks, cargo pump-rooms, cofferdams, deck areas whichform part of the cargo area or any other area where cargo va-pour may accumulate.

Aluminised pipes may be permitted in balasttanks, in inerted cargo tanks, and, provided the pipes are pro-tected from accidental impact, in hazardous areas on weatherdeck.

2.4.7.10 Impressed current systems shall not be permittedin cargo tanks.

2.4.7.11 Magnesium or magnesium alloy anodes shall notbe permitted in cargo tanks.

The use of aluminium anodes in cargo tanksshall be subject to special consideration by the Register ineach particular case (see Rules, Part 24 - Non-Metallic Mate-rials, 4.10).

2.4.8 Inerting, ventilation and gasmeasurement in double hull, doublebottom and cofferdams in the cargo area

2.4.8.1 Tankers required to be fitted with inert gas sys-tem shall be provided with suitable arrangements for inertingdouble hull and double bottom spaces and, where appropriate,cofferdams, when necessary.

2.4.8.2 The arrangements for inerting of spaces referredto in 2.4.8.1 may be through partable connections to the inertgas system for cargo tanks or by fixed piping connections.Where necessary fixed purge pipes arranged such as to takeinto account the configuration of these spaces shall be fitted(see MSC/Circ. 730).

2.4.8.3 If fixed piping is used the arrangements for in-erting shall include a separate deck water seal and a non-returnvalve in order to prevent hydrocarbon gases from cargo tanksentering the double hull, double bottom and cofferdamsthrough the system.

Where such spaces are not permanently con-nected to the inert gas system, appropriate means shall be pro-vided to allow connection to the inert gas main.

2.4.8.4 The double hull, double bottom and cofferdamsmay be inerted either at all times when empty, or only if hy-drocarbon gases are detected indicating leakage between cargotanks and such spaces in which case the fixed piping systemshall be considered necessary.

2.4.8.5 Double hull, double bottom and, where appro-priate, cofferdams shall be fitted with suitable connections forthe supply of air.

2.4.8.6 The ventilation arrangements shall be capable ofgasfreeing:

.1 inerted spaces; or

.2 spaces containing cargo vapours fromleakages of cargo or cargo vapour; andmaintaining adequate ventilation continu-ously during entry of personnel.

2.4.8.7 Alternative methods of ventilation may includeuse of portable gas-freeing fans or inert gas blowers and waterballast line or purge pipes (see MSC/Circ. 730).

2.4.8.8 Suitable portable instruments for measuringoxygen and flammable vapour concentrations in double bot-tom and double hull spaces and, where appropriate, coffer-dams shall be provided (see Table 5.1.2-1, item 15). In se-lecting these instruments, due attention shall be given to theiruse in combination with the fixed gas sampling line systemsreferred to in 2.4.8.9.

2.4.8.9 Where the atmosphere in spaces referred to in2.4.8.8 cannot be reliably measured using flexible gas sam-pling hoses, permanent gas sampling lines shall be provided.The configuration of gas sampling lines shall be adapted to thedesign of such spaces.

2.4.8.10 The materials of construction and the dimen-sions of gas sampling lines shall be such as to prevent restric-tion. Pipes made of non-metallic material may be accepted forfixed purge lines and gas sampling lines in the double bottomand double hull spaces provided they are of electrically con-ductive type and suitably grounded.

2.4.9 Additional requirements for combinationcarriers

2.4.9.1 Combination carriers shall additionally complywith the following requirements:

.1 The slop tanks shall be surrounded by cof-ferdams except where the boundaries ofthe slop tanks, where slop may be carriedon dry cargo voyages, are part of the hull,main cargo deck, cargo pump-room bulk-head or oil fuel bunker tank. These coffer-dams shall not be open to a double bottom,pipe tunnel, pump-room or other enclosedspace, nor shall they be used for cargo orballast and shall not be connected to pipingsystems serving oil cargo or ballast. Meansshall be provided for filling the cofferdamswith water and for draining them. Wherethe boundary of a slop tank is part of thecargo pump-room bulkhead, the pump-


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room shall not be open to the double bot-tom, pipe tunnel or other enclosed space;however, openings provided with gastightbolted covers may be permitted.

.2 Hatches and tank cleaning openings toslop tanks shall only be permitted on theopen deck and shall be fitted with closingarrangements. Except where they consistof bolted plates with bolts at watertightspacing, these closing arrangements shallbe provided with locking arrangementsunder the control of the responsible ship’sofficer.

.3 Cargo spaces and any enclosed spaces ad-jacent to cargo spaces shall be capable ofbeing mechanically ventilated. The me-chanical ventilation may be provided byportable fans.

.4 An approved fixed gas warning system ca-pable of monitoring flammable vapoursshall be provided in pipe tunnels and cof-ferdams, as referred to in paragraph .1,adjacent to slop tanks. Suitable arrange-ments shall be made to facilitate measure-ment of flammable vapours in cargo tanksand all other spaces within the cargo area.Such measurements shall be made possiblefrom the weather deck or other easily ac-cessible positions

.5 The arrangements for isolating slop tankscontaining oil or oil residues from othercargo tanks shall consist of blank flangeswhich will remain in position at all timeswhen cargoes other than liquid cargoes re-ferred to in 2.4.1.1 are carried.

.6 An instruction manual shall be kept on-board describing all essential proceduresfor conversion from oil to dry cargo serv-ice and vice versa including the carriage ofslop on dry cargo voyages.

2.5 TANKERS (> 60OC)

2.5.1 The requirements of this section are in additionto the requirements specified in 2.3 and shall apply to tankersof 300 gross tonnage and upwards carrying liquid bulk cargoesof the following categories:

.1 petroleum products with a flash pointabove 60oC up to 100oC;

.2 petroleum products heated to a tempera-ture above 45oC but not higher than 15oCbelow their flash point;

.3 other liquid products having a similar firehazard.

The application of the requirements of this sec-tion to ships of less than 300 gross tonnage is subject to spe-cial consideration by the Register in each particular case.

2.5.2 The requirements of this section are at presentlimited to the liquid cargoes listed in Annex 3.

2.5.3 Cargo tanks shall not be adjacent to accommo-dation spaces.

2.5.4 No doors leading to accommodation and servicespaces shall be permitted in boundary bulkhead of super-structures and deckhouses facing the cargo tanks deck area.

2.5.5 A permanent continuous coaming of not lessthan 150 mm in height and extending from side to side shallbe fitted on the upper deck at a distance of about 2 m from asuperstructure where accommodation and service spaces arelocated.

2.5.6 Machinery spaces of category A shall be ar-ranged aft of cargo and slop tank area.

2.5.7 Where cargo heating arrangements are fitted,provision shall be made to prevent cargo from heating to thetemperature higher than 45 oC, i.e. higher than 15 oC belowthe flashpoint of the cargo.

2.6 SPECIAL PURPOSE SHIPS

2.6.1 Application

2.6.1.1 The requirements of this section shall apply tospecial purpose ships of 300 gross tonnage and upwards,which carry more than 12 special personnel (see resolutionMSC.266(84)).

2.6.1.2 The application of this regulation to ships of lessthan 300 gross tonnage is subject to special consideration bythe Register in each particular case.

2.6.2 General requirements

2.6.2.1 For ships carrying more than 240 persons onboard, the requirements of section 2.2 for passenger ships car-rying more than 36 passengers shall be applied.

2.6.2.2 For ships carrying more than 60 persons onboard, but not more than 240, the requirements of section 2.2for passenger ships carrying not more than 36 passengers shallbe applied.

2.6.2.3 For ships carrying not more than 60 persons onboard, the requirements of section 2.3 as for cargo ships of500 gross tonnage and upwards, shall be applied.

2.6.2.4 In applying the requirements in 2.6.2.1, theminimum fire integrity of bulkheads and decks separatingworkshops and laboratories from other spaces shall complywith the requirements in 2.2.4.2 as for category (10) and (14)spaces, as appropriate.

2.6.2.5 In applying the requirements in 2.6.2.2 and2.6.2.3, the minimum fire integrity of bulkheads and decksseparating workshops and laboratories from other spaces shallcomply with the requirements in 2.2.5.2 and 2.3.2.1 as forcategory (5) and (9) spaces, as appropriate.

2.6.2.6 Ships intended to carry dangerous goods forshipment as cargo, and not used on board, shall comply withthe requirements of section 2.7, also.

For that purpose appropriate provisions of theIMDG Code regarding construction, loading, stowage and seg-regation shall be taken into account at the design stage of theship.


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2.7 SHIPS CARRYING DANGEROUSGOODS


2.7.1.1 In addition to complying with the requirementsspecified in section 2.2 and 2.3 and in Chapter 3, 4 and 5 asappropriate, ship types and cargo spaces, referred to in 2.7.1.4,intended for the carriage of dangerous goods shall complywith the requirements of this section, as appropriate, exceptwhen carrying dangerous goods in limited quantities and ex-cepted quantities (see IMDG Code, Chapter 3.4 and 3.5), un-less such requirements have already been met by compliancewith the requirements elsewhere in this Part of the Rules.

The types of ships and modes of carriage ofdangerous goods are referred to in 2.7.1.4 and in Table2.7.2.1-1.

2.7.1.2 Cargo ships of less than 500 gross tonnage, butnot less than 300, shall comply with this regulation, but Reg-ister may reduce the requirements and such reduced require-ments shall be recorded in the document of compliance re-ferred to in 2.7.1.8.

2.7.1.3 Unless expressly provided otherwise the appli-cation of the requirements of this section to cargo ships of lessthan 300 gross tonnage is subject to special consideration bythe Register in each particular case.

2.7.1.4 The following ship types and cargo spaces shallgovern the application of Tables 2.7.2.1-1 and 2.7.2.1-3.

.1 ships and cargo spaces not specifically de-signed for the carriage of freight contain-ers but intended for the carriage of danger-ous goods in packaged form, includinggoods in freight containers and portabletanks;

.2 purpose-built containerships and cargospaces intended for the carriage of danger-ous goods in freight containers and port-able tanks;

.3 ro-ro ships and ro-ro spaces intended forthe carriage of dangerous goods;

.4 ships and cargo spaces intended for thecarriage of solid dangerous goods in bulk;and

.5 ships and cargo spaces intended for thecarriage of dangerous goods other thanliquids and gases in bulk in shipbornebarges

2.7.1.5 A ship,except a cargo ship of less than 300 grosstonnage, intended for the carriage of dangerous goods in anycargo spaces, "on deck" or "under deck", shall be providedwith a fixed carbon dioxide fire-extinguishing system or witha fire-extinguishing system which, in the opinion of the Reg-ister, gives equivalent protection for the cargoes being carried(see Annex 4, Table 2-1).

2.7.1.6 Notwithstanding the requirements specified in2.7.1.5, in ships intended solely for the carriage of non-combustible and/or low fire risk dangerous goods the installa-tion of a fire-extinguishing system in cargo spaces may bedispensed with on application to the Register (see Annex 4,Table 1-1).

2.7.1.7 Ships intended for the carriage of dangerousgoods shall be provided with relevant instructions (IMDGCode, IMSBC Code, MFAG and EmS) which describe all es-sential operational procedures for the carriage and accidentsfor the cargoes being carried.

2.7.1.8 The Register shall provide the ship with an ap-propriate document as evidence of compliance of constructionand equipment with the requirements of this regulation (seeMSC/Circ.1027). Certification for dangerous goods, exceptsolid dangerous goods in bulk, is not required for those car-goes specified as class 6.2 and 7, as defined in 1.2.2.16, anddangerous goods in limited quantities and excepted quantities.

The cargoes covered by the IMSBC Code do notrequire certification, unless such cargoes are classified as dan-gerous goods, except class 6.2 and 7.

Such a document of compliance is required onlywhen a ship carries or intends to carry dangerous goods and is(see MSC/Circ.858):

.1 a passenger ship constructed on or after 1September 1984; or

.2 a cargo ship of 500 gross tonnage or overconstructed on or after 1 September 1984;or

.3 a cargo ship of less than 500 gross tonnageconstructed on or after 1 February 1992.

2.7.2 Special requirements2.7.2.1 Unless otherwise specified, the following re-quirements shall govern the application of the Tables 2.7.2.1-1, 2.7.2.1-2 and 2.7.2.1-3 to both "on-deck" and "under-deck"stowage of dangerous goods where the numbers of the fol-lowing paragraphs are indicated in the first column of the ta-bles:

1. Water supply, cooling and flooding1.1 Arrangements shall be made to ensure

immediate availability of a supply ofwater from the fire main at the re-quired pressure either by permanentpressurization and automatic start oneof the required fire pumps or by re-mote arrangements for the fire pumpsplaced on the navigating bridge andfire control station, if any.

The suction and discharge valves ofthe fire main in machinery spaces shallbe capable of being remotely con-trolled, or warning plates stating thatthese valves shall be kept normally inopen position shall be posted to callthe crew’s attention.

1.2 Number and arrangments of hydrantsshall be such as to ensure that waterfrom the four nozzles of a size and atpressures as specified in 3.3.1.2, canbe simultaneously trained on any partof the cargo space when empty. Thisamount of water may be applied byequivalent means to the satisfaction ofthe Register.The hydrants shall be installed on theopen deck, except for the ro-ro spacesand special category spaces.


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For dry spaces two of the requirednozzles shall be connected by meansof a single length fire hose and othertwo may be connected by means oftwo coupled lengths of fire hoses.For ro-ro spaces all four nozzles shallbe connected by means of a singlelength fire hose.The quantity of water delivered shallsatisfy the requirements in 1.3 also (ifapplicable), simultaneously, and shallbe calculated for the largest designatedcargo space.The capacity requirement shall be metby the total capacity of main firepumps, not including the capacity ofthe emergency fire pump, if fitted.If a drencher system is used to satisfythe requirements in 1.3, the drencherpump may also be taken into accountin this total capacity calculation.

1.3 Means of effectively cooling the des-ignated under-deck cargo space by co-pious quantities of water, either by afixed arrangement of spraying nozzles(see section 3.4), or flooding the cargospace with water, shall be provided.Hoses may be used for this purpose insmall cargo spaces and in small areasof larger cargo spaces if availablequantities of water satisfy the purposeintended, and subject to approval bythe Register. However the drainageand pumping arrangements shall besuch as to prevent the build-up of freesurfaces. The drainage system shall besized to remove no less than 125% ofthe combined capacity of both the wa-ter spraying system pumps and the re-quired number of fire hose nozzles.The drainage system valves shall beoperable from outside the protectedspace at a position in the vicinity of theextinguishing system controls. Bilgewells shall be of sufficient holding ca-pacity and shall be arranged at the sideshell of the ship at a distance fromeach other of not more than 40 m ineach watertight compartment. If this isnot possible the adverse effect uponstability of the added weight and freesurface of water shall be taken into ac-count and shall comply with the re-quirements specified in Rules, Part 5.-Subdivision, Chapter 2 and 3.

1.4 Provision to flood a designated under-deck cargo space with suitable speci-fied media, e.g. high expansion foam,unless cargoes react dangerously withwater, may be accepted by the Registerin lieu of the requirements in 1.3.

2. Electrical equipment and sources of ig-nition2.1 Electrical equipment and wiring shall

not be fitted in enclosed cargo spacesor vehicle spaces unless it is essentialfor operational purposes in the opinionof the Register. Howerver, if electricalequipment is fitted in such spaces, itshall be of a certified safe type for usein the dangerous environments towhich it may be exposed (flammablegases, vapours or dust) unless it is pos-sible to completely isolate the electri-cal system (e.g. by removal of links inthe system, other than fuses). Electri-cal appliances which are not requiredin conjunction with the transport ofdangerous goods or which are not es-sential either for the safety of the shipor crew need not have a type of pro-tection corresponding to the goods tobe transported if they can be isolatedfrom the electrical supply completelyand protected against anauthorized re-connection.Disconnection shall be made outsidethe hazardous areas and shall be ef-fected by removal of links in the sys-tem, other than fuses, or with lockableswitches.Portable electrical equipment which isnecessary for ship operation or whichis required by the Rules shall be ofcertified safe type.Cable penetrations of the decks andbulkheads shall be sealed against thepassage of gas or vapour. Throughruns of cables and cables within thecargo spaces shall be protected againstdamage from impact (see Rules, Part12. - Electrical Equipment, 2.9 and16.8).Any other equipment which may con-stitute a source of ignition of flamma-ble vapour shall not be permitted.

3. Fire detection system3.1 Ro-ro spaces shall be fitted with a

fixed fire detection and fire alarm sys-tem complying with requirementsspecified in 4.2.1. All other types ofcargo spaces shall be fitted with eithera fixed fire detection and fire alarmsystem complying with requirementsin 4.2.1 or a sample extraction smokedetection system complying with re-quirements specified in 4.2.3. Where asample extraction smoke detectionsystem is fitted, particular attentionshall be made to 4.2.3.4 in order toprevent the leakage of toxic fumes intooccupied areas.


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4. Ventilation arrangement4.1 Adequate power ventilation shall be

provided in enclosed cargo spaces. Thearrangement shall be such as to pro-vide for at least six air changes perhour in the cargo space based on anempty cargo space and for removal ofvapours from the upper or lower partsof the cargo space, as appropriate.The fan(s) shall be permanently fittedor of a portable type adapted for beingpermanently fitted prior to loading andduring voyage.The height of ventilation inlets andoutlets shall satisfy the InternationalConvention on Load Lines in force, foropenings fitted with closing appli-ances. The means of closure for fireprotection shall be fitted in accordancewith 2.1.4.3 (see also 2.7.3.1.2.2).

4.2 The fans shall be such as to avoid thepossibility of ignition of flammablegas air mixtures (see Rules, Part 9 -Machines, 5.3.3).Fixed protection screens of not morethan 13 mm square wire mesh shall befitted over inlet and outlet ventilationopenings.

4.3 At least natural ventilation fitted withclosing appliances for inlets and out-lets and/or means of closure for fireprotection, shall be provided, as ap-propriate, in enclosed cargo spaces in-tended for the carriage of solid dan-gerous goods in bulk, where there is noprovision for power ventilation.

5. Bilge pumping/drainage system5.1 Where it is intended to carry flamma-

ble (flash point < 23°C) or toxic liq-uids in enclosed cargo spaces, thebilge pumping system shall be de-signed to protect against inadvertentpumping of such liquids through ma-chinery space piping or pumps. Wherelarge quantities of such liquids are car-ried, consideration shall be given tothe provision of additional means ofdraining those cargo spaces. Thesemeans shall be to the satisfaction ofthe Register.Cargo spaces shall be fitted with afixed bilge pumping/drainage systemindependent or separated from thebilge system in machinery space andlocated outside of the machineryspace.If bilge ejectors are used driving watermay be taken from a pump in the ma-chinery space provided a non-returnvalve shall be fitted in the supply line.

5.2 If the bilge pumping system for cargospaces is additional to the systemserved by pumps in the machineryspace, the capacity of the system shall

be not less than 10 m3/h per cargospace served. If the additional systemserves more than one cargo space thecapacity need not exceed 25 m3/h. Theadditional bilge system need not be ar-ranged with redundancy.If a single bilge pumping system com-pletely independent of the machineryspace is provided, the system shallcomply with the requirements to re-dundancy and capacity based on thesize of the space or spaces which itserves, as specified in Rules, Part 8 –Piping, Chapter 2.

5.3 Whenever the dangerous goods arecarried, the bilge line into the machin-ery space shall be separated either byfitting a blank flange or by a closedlockable valve located in a readily ac-cessible position outside cargo spacee.g. in the machinery space. Warningplates against inadvertent openingshall be exhibited in the close vicinity.

5.4 Enclosed spaces outside machineryspaces, containing bilge pumps servingsuch cargo spaces, shall be fitted withseparate mechanical exhaust ventila-tion giving at least 6 air changes perhour. Electrical equipment in the spaceshall comply with requirements speci-fied in paragraph 2.1, above. If thespace has access from another en-closed space, the door shall be of self-closing type.

5.5 If bilge drainage of cargo spaces is or-ranged by gravity drainage, the drain-age shall be either lead directly over-board or to a closed draintank locatedoutside of machinery spaces. The tankshall have a minimum volume suffi-cient to accumulate 1/3 of the drainagecapacity per hour of the largest cargospace and shall be provided with ventpipe to a safe location on the opendeck.Drainage from a cargo space into bilgewells in a lower space is only permit-ted if that space satisfies the same re-quirements as the cargo space above.

6. Personnel protection and medicalequipment6.1 Four sets of full protective clothing re-

sistant to chemical attack of the car-goes being carried shall be provided inaddition to the fire-fighter’s outfits re-quired in Table 5.1.2-1, item 10.The protective clothing shall cover allskin, so that no part of the body is un-protected and shall be selected takinginto account the hazards associatedwith the chemicals being transportedand the standards acceptable to theRegister according to the class andphysical state.


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(see Supplement EmS to IMDG Codeand/or Appendix 1 of the IMSBCCode, as appropriate).In cargo ships of less than 300 grosstonnage and in passenger ships of lessthan 500 gross tonnage, but not lessthan 300, not more than two sets ofprotective clothing are required.

6.2 At least two self-contained breathingapparatuses, additional to those re-quired in Table 5.1.2-1, item 10, shallbe provided.Two complete sets of air bottles eachcontaining at least 1,200 l of free airshall be kept ready for each of the ad-ditional breathing apparatus.Passenger ships carrying not more than36 passengers and cargo ships that areequipped with suitably located meansfor fully recharging the air cylindersfree from contamination need carryonly one spare charge for each re-quired apparatus.In cargo ships of less than 300 grosstonnage and in passenger ships of lessthan 500 gross tonnage but not lessthan 300, having open ro-ro space,only one breathing apparatus with oneset of air bottles is required.

6.3 The ship’s hospital shall have a 40 li-tre/200 bar medical oxygen cylinder,assembled for direct use, equippedwith one flow-meter unit for supply-ing oxygen for two persons simulta-neously, and a complete portable set,ready for use, with a 2 litre/200 barmedical oxygen cylinder and a sparecylinder (also 2 litre/200 bar).

The 40 litre/200 bar cylinders shall bestored in fixed supports connected di-rectly to ships steel structure within theship’s hospital. The cylinders shall bestored within a steel cabinet with natu-ral ventilation to free air. Signboardwarning of possible ignition caused bystatic electricity from clothing or openflame when medical oxygen is used(released) shall be posted on the cabi-net.Alternative arrangements, which in theopinion of the Register are equivalent,may be accepted.

7. Portable fire extinguishers7.1 Portable fire extinguishers with a total

capacity of at least 12 kg of dry pow-der or equivalent shall be provided forthe cargo spaces. These extinguishersshall be in addition to any portable fireextinguishers required elsewhere inthis Part of the Rules (see Table 5.1.2-1, item 4.4).

8. Insulation of machinery space boundaries8.1 Bulkheads forming boundaries be-

tween cargo spaces and machinery

spaces of category A shall be insulatedto "A-60" standard, unless the danger-ous goods are stowed at least 3 m hori-zontally away from such bulkheads.Other boundaries between such spacesshall be insulated to "A-60" standard.No loading of dangerous goods shallbe permitted in the closed or semi-closed cargo space located partlyabove the machinery space of categoryA if the deck above the machineryspace is not insulated to "A-60" stan-dard.If the uninsulated deck above the ma-chinery space of category A is aweather deck, no loading of the dan-gerous goods shall be permitted for theportion of the deck located above themachinery space.

9. Water spray system9.1Each open ro-ro space having a deck

above it and each space deemed to be aclosed ro-ro space not capable of beingsealed shall be fitted with a fixed pres-sure water-spraying system for manualoperation which shall protect all partsof any deck and vehicle platform insuch space (see 3.5), except that theRegister may permit the use of anyother fixed fire-extinguishing systemthat has been shown by full scale testto be no less effective.However, the drainage and pumpingarrangements shall be such as to pre-vent the build-up of free surfaces. Thedrainage system shall be sized to re-move no less than 125% of the com-bined capacity of both the water-spraying system pumps and the re-quired number of fire hose nozzles.The drainage system valves shall beoperable from outside the protectedspace at a position in the vicinity of theextinguishing system controls. Bilgewells shall be of sufficient holding ca-pacity and shall be arranged at the sideshell of the ship at a distance fromeach other of not more than 40 m ineach watertight compartment. If this isnot possible, the adverse effect uponstability of the added weight and freesurface of water shall be taken into ac-count and shall comply with require-ments specified in Rules, Part 5 –Subdivision, Chapter 2 and Chapter3,.(see also MSC.1/Circ.1234)

10. Separation of ro-ro spaces10.1 In ships having ro-ro spaces, a sepa-

ration shall be provided between aclosed ro-ro space and the adjacentopen ro-ro space. The separation shallbe such as to minimize the passage ofdangerous vapours and liquids be-tween such spaces. Alternatively, such


2009

separation need not be provided if thero-ro space is considered to be a closedcargo space over its entire length andfully complies with the relevant spe-cial requirements of this regulation.

10.2 In ships having ro-ro spaces, a sepa-ration shall be provided between aclosed ro-ro space and the adjacentweather deck. The separation shallbe such as to minimize the passage

of dangerous vapours and liquidsbetween such spaces. Alternatively,a separation need not be provided ifthe arrangements of the closed ro-rospaces are in accordance with thoserequired for the dangerous goodscarried on adjacent weather decks.(see 7.2.4, IMDG Code).

Table 2.7.2.1-1Application of the special requirements to different modes of carriage of dangerous goods in ships and cargo spaces*

Ships and cargo .1 .2 .3 .4 .5 spaces: 2.7.1.4 Ro-ro spaces5

Specialrequirements: 2.7.2.1

Weatherdecks .1

to .5inclusive

Not specifi-cally de-signed

Containercargo spaces closed open

Soliddangerousgoods in

bulk (only)

Shipbornebarges

1.1 X X X X X X1.2 X X X X X −1.3 − X X X X X1.4 − X X X X X2.1 − X X X X X4

3.1 − X X X − X4

4.1 − X X1 X − X4

4.2 − X X1 X − X4

5.1 − X X X − −6.1 X X X X X −6.2 X X X X X −7.1 X X − − X −8.1 X X X2 X X −9.1 − − − X3 X −10.1 − − − X − −10.2 − − − X −

Forapplicationof require-ments ofthis sectionto differentclasses ofdangerousgoods, seeTable2.7.2.1-2.

−

*Wherever X appears in Table 2.7.2.1-1 it means this requirement is applicable to all classes of dangerous goods as given in the ap-propriate line of Table 2.7.2.1-3, except as indicated by the notes.Notes to Table 2.7.2.1-1

1. For classes 4 and 5.1 solids not applicable to closed freight containers.For classes 2, 3, 6.1 and 8 when carried in closed freight containers, the ventilation rate may be reduced to not lessthan two air changes per hour. For classes 4 and 5.1 liquids when carried in closed freight containers, the ventilationrate may be reduced to not less than two air changes per hour. For the purpose of this requirement a portable tank is aclosed freight container.

2. Applicable to decks only.3. Applies only to closed ro-ro spaces, not capable of being sealed.4. In the special case where the barges are capable of containing flammable vapours or alternatively if they are capable

of disharging flammable vapours to a safe space outside the barge carrier compartment by means of ventilation ductsconnected to the barges, these requiremens may be reduced or waived to the satisfaction of the Register.

5. Special category spaces shall be treated as closed ro-ro spaces when dangerous goods are carried.


2009

Table 2.7.2.1-2Application of the special requirements to different classes of dangerous goods for ships and cargo spaces carrying solid dangerous

goods in bulk

ClassSpecialrequirements:2.7.2.1

4.1 4.2 4.36 5.1 6.1 8 9

1.1 X X − X − − X1.2 X X − X − − X2.1 X X7 X X8 − − X8

4.1 − X7 X − − − −4.2 X9 X7 X X7,9 − − X7,9

4.3 X X X X X X X6.1 and 6.2 X X X X X X X

6.3 X X X X X X X8.1 X X X X7 − − X10

Notes to Table 2.7.2.1-2:6. The hazards of substances in this class which may be carried in bulk are such that special consideration shall be given

by the Register to the construction and equipment of the ship involved in addition to meeting the requirements enu-merated in this table (see 2.7.3).

7. Only applicable to Seedcake containing solvent extractions, to Ammonium nitrate and to Ammonium nitrate fertiliz-ers.

8. Only applicable to Ammonium nitrate and to Ammonium nitrate fertilizers, However, a degree of protection in ac-cordance with standards contained in the IEC publication 60079 – Electrical Apparatus for Explosive Gas Atmos-pheres, is sufficient.

9. Only suitable wire mesh guards are required.10. The requirements of the IMSBC Code are sufficient.

2.7.2.2 For solid dangerous goods in bulk and packageddangerous goods in classes 6.2 and 7 there are no special re-quirements to ship's construction and equipment regarding fireprotection, fire detection and fire extinction (for the specificoperational requirements see IMDG Code, IMSBC Codeand/or INF Code, as appropriate).


2009

9 X − − − X17 − X11

X17

− X14 − − X X X

8so

lids

X X − − − X − − − X − − X X X

8liq

ui ds X X − − − X − − X19 X − − X X X

815

liqui

ds≥

23o C

≤ 61

o C

X X − − − X X − X19 X X X X X X

815

liqui

ds<

23o C

X X − − X X X X X X X X X X X

6.1

solid

s

X X − − − X X11 − − X − − X X X

6.1

liqui

ds

X X − − − X − − X X − − X X X

6.115

liqui

ds ≥

23o C

≤ 61

o C

X X − − − X X − X X X X X X X

6.115

liqui

ds<2

3o C


5.216 X X − − − − − − − X − X X X X

5.1 X X − − − X X11 − − X X X13 X X X

4.3

solid

s

X X − − − X X − − X X X X X X

4.3

liqu

ids X X − − X

18 X X − − X X X X X X

4.2 X X − − − X X11 − − X X X X X X

4.1 X X − − − X X11 − − X X X X X X

≥23o C

≤61o CX X − − − X − − − X X X X X X

315

< 23

o C


2.3

non-

flam

-m

able

X X − − − X X − − X − X X X X

2.3

fla-

mm

abl

e X X − − X − − − − X − X X X X

2.2 X X − − − X − − − X − X X X X

2.1 X X − − X X X X − X − X X X X

1.4

S

X X − − − X − − − − − − X X X

1.1-

1.6

X X X X X X − − − − − X12 X X X

Tab

lica

2.7.

2.1-

3A

pplic

atio

n of

the

requ

irem

ents

to d

iffer

ent c

lass

es o

f dan

gero

us g

oods

exc

ept s

olid

dan

gero

us g

oods

in b

ulk

Cla

ssSp

ecia

lre

quire

men

ts:2.

7.2.

1 1.1

1.2

1.3

1.4

2.1

3.1

4.1

4.2

5.1

6.1

and

6.2

7.1

8.1

9.1

10.1

10.2

Not

es to

Tab

le 2

.7.2

.1-3

11. W

hen

“mec

hani

cally

-ven

tilat

ed sp

aces

” ar

e re

quire

d by

IMD

G C

ode,

as a

men

ded.

12. S

tow

3 m

hor

izon

tally

aw

ay fr

om th

e m

achi

nery

spac

e bo

unda

ries i

n al

l cas

es.

13. R

efer

ence

is m

ade

to th

e IM

DG

Cod

e, a

s am

ende

d.14

. As a

ppro

pria

te fo

r the

goo

ds to

be

carr

ied.

15. I

ndic

ated

tem

pera

ture

refe

rs to

the

flash

poin

t.16

. Und

er th

e pr

ovis

ions

of t

he IM

DG

Cod

e, a

s am

eded

, sto

wag

e of

cla

ss 5

.2 d

ange

rous

goo

ds u

nder

dec

k or

in e

nclo

sed

ro-r

o sp

aces

is p

rohi

bite

d.17

. Onl

y ap

plic

able

to d

ange

rous

goo

ds e

volv

ing

flam

mab

le v

apou

r lis

ted

in th

e IM

DG

Cod

e, a

s am

ende

d.18

. Onl

y ap

plic

able

to d

ange

rous

goo

ds h

avin

g a

flash

poin

t les

s tha

n 23°C

list

ed in

the

IMD

G C

ode,

as a

men

ded.

19. O

nly

appl

icab

le to

dan

gero

us g

oods

hav

ing

a su

bsid

iary

risk

cla

ss 6

.1.


2009

2.7.3 Additional requirements

2.7.3.1 The following requirements, additional to thosespecified in 2.7.2.1, shall apply to the individual solid danger-ous goods in bulk, as indicated in Table 2.7.3.1-1, as applica-ble:

Table 2.7.3.1-1Application of the additional requirements to the individual solid dangerous goods in bulk

Additional requirements: 2.7.3.12. 7. 8.Solid dangerous

goods in bulkUNNo.

IMOclass 1.1 2.1 2.2 2.3 3.1 4.1 5.1 6.1 7.1&

7.28.1 8.2 8.3 9.1

Aluminiumferrosiclicon powder 1395 4.3 X X X X − − − − − − X X X

Aluminium siliconpowder, uncoated 1398 4.3 X X X X − − − − − − X X X

Aluminium smetling by-products 3170 4.3 X − X X X − − − − − X X X

Ammonium nitrate 1942 5.1 − − − − − − − X − X X X XAmmonium nitrate basedfertilizers 2067 5.1 − − − − − − X X − X X X X

Ammonium nitrate basedfertilizers 2071 9 − − − − − − X − − X X X X

Copra (dry) 1363 4.2 X − − − − X X − − − X X XFerrosilicion, 30-90% 1408 4.3 X X X X X − − − − − X X XFerrous metal, borings,shavings or cuttings 2793 4.2 X − − − − X − − − − X X −

Fishmeal (fishscrap), stabi-lized 2216 9 X − − − − X X1 − − − X X −

Iron oxide, iron sponge,spent 1376 4.2 X − − X − − − − − X X X −

Seed cake, containing vege-table oil (a), mechanicallyexpelled seeds

1386 4.2 X − − − − X X − − − X X −

Seed cake, containing vege-table oil (b) solvent extrac-tion and expelled seeds.

1386 4.2 X − − X − X X − X − X X X

Seed cake, containing vege-table oil 2217 4.2 X − − − − X X − X − X X X

Sulphur (lump and coarsegrained) 1350 4.1 − − − − − − − − X − X X −

Zinc ashes 1435 4.3 X X X X − − − − − X X X X

Note 1:1) Maximum temperature shall not exceed 30o C

1. Oxygen analysis and gas detectionequipment1.1 When transporting a solid dangerous

goods in bulk which are liable to emita toxic or flammable gas, or causeoxygen depletion in the cargo space,an appropriate instrument (see Appen-dix 1 of the IMSBC Code) for meas-uring the concentration of gas or oxy-gen in the air shall be provided to-gether with detailed instructions for its

use. Such an instrument shall be to thesatisfaction of the Register (see Table15.1.2-1, item 15).The instruments may be portable orfixed. In case portable gas measuringinstruments are provided, suitablesampling connections enabling thechecking of atmosphere in cargospaces without need of entry, shall bearranged.


2009

2. Ventilation of cargo spaces2.1 Cargo spaces shall be provided with at

least two fans.2.2 Cargo spaces intended for the carriage

of goods for which continuous venti-lation is required, shall be providedwith ventilation openings which maybe kept opened when required. Suchopenings shall comply with the re-quirements specified in the Interna-tional Convention on Lead Lines inforce, for openings not fitted withmeans of closure. The means of clo-sure for fire protection shall be fittedin accordance with 2.1.4.2.

2.3 Ventilation outlets shall be located at aminimum of 3 m away from openingsinto machinery and/or accommodationand service spaces.

3. Bilge pumping/drainage system3.1 An independent or separated bilge

pumping/drainage system approved bythe Register, shall be provided for thecargo spaces (se 2.7.2.1.5).

4. Temperature monitoring4.1 Cargo spaces shall be fitted with ar-

rangements for measuring the tem-perature of the cargo.The temperature sensors may be eitherpermanently fitted or of portable type.If portable sensors are used the ar-rangement shall enable measurementof the temperature of the cargo withoutentry of the cargo space being neces-sary.

5. Separation from heated surfaces5.1 Heated fuel tanks adjacent to cargo

spaces shall be fitted with permanenttemperature indicators or providedwith suitable arrangement for usingportable indicators. Such fuel tanksshall not be heated above 45 oC. How-ever, if high temperature alarm(s) isprovided an alarm limit of 50 oC maybe accepted.

6. Separation of cargo spaces from oiltanks6.1 Cargo spaces shall not have fuel oil

and lubricating oil tanks located adja-cently or such tanks shall be hy-drostatically tested before loading inorder to ensure that there is no leakageof manholes and piping systems lead-ing to the tanks.

7. Spark arresters7.1 Exhaust gas uptakes of propulsion and

auxiliary machinery and exhaust gasboilers, flue gas uptakes of boilers andincinerators and gas turbine regenera-tors shall be fitted with spark arresters.

7.2 The inlet and outlet ventilation open-ings shall be fitted with spark-arrestingscreens (one screen with 30 x 30threads per square inch or two screens

with 20 x 20 threads per square inchfitted in series).

8. Personnel protection and medicalequipment8.1 The requirements specified in

2.7.2.1.6.1 shall apply.8.2 The requirements specified in

2.7.2.1.6.2 shall apply.8.3 The requirements specified in

2.7.2.1.6.3 shall apply.9. Precautions

9.1 "NO SMOKING" signs shall be dis-played on open deck and in the cargospaces.

2.7.3.2 For the specific operational requirements whichshall apply to the individual solid dangerous goods in bulk seeindividual entries in the Appendix 1 of the IMSBC Code.

2.7.4 Dangerous goods permitted in passengerships, including ro-ro passenger ships

2.7.4.1 Dangerous goods in packaged form may be car-ried in passenger ships provided the requirements specified in2.7.1 and 2.7.2 are complied with and observing the restric-tions given in 2.7.4.2 to 2.7.4.10.

2.7.4.2 Except for class 1 – Explosives, dangerousgoods may be carried in passenger ships provided the restric-tions with regard to the stowage and location of such goodsand number of passengers onboard, as specified in section7.1.1 of the IMDG Code are observed.

2.7.4.3 Goods of class 1 which may be carried in pas-senger ships are identified in the Dangerous Goods List of theIMDG Code. Explosives in division 1.4, compatibility group Smay be carried in any amount in passenger ships. No other ex-plosives may be carried in passenger ships except any one ofthe following:

.1 explosive articles for life-saving purposes,if the total net explosives mass of such ar-ticles does not exceed 50 kg per ship; or

.2 goods in compatibility groups C, D and E,if the total net explosives mass does notexceed 10 kg per ship; or

.3 articles in compatibility group G otherthan those requiring special stowage, if thetotal net explosives mass does not exceed10 kg per ship; or

.4 articles in compatibility group B, if thetotal net explosives mass does not exceed10 kg per ship.

2.7.4.4 Nowithstanding the restrictions in 2.7.4.3 addi-tional quantities or types of explosives may be carried in pas-senger ships in which special safety measures approved by theRegister are taken.

2.7.4.5 Articles in compatibility group N, shall only beallowed in passanger ships if the total net explosive mass doesnot exceed 50 kg per ship and no other explosives, apart fromdivision 1.4 compatibility group S, are carried.

2.7.4.6 Stowage and handling of goods of class 1 shallcomply with stowage categories as specified in paragraph7.1.7.2 and observing the stowage restrictions with regard to


2009

the compatibility group, shown in paragraph 7.1.7.5.5 of theIMDG Code.

2.7.4.7 Passengers and other unauthorized persons shallbe excluded from vehicle decks on which dangerous goodshave been loaded. All doors leading directly to these decksshall be securely closed during the voyage and notices or signsprohibiting entrance to such decks shall be conspicuously dis-played.

During the voyage access to such decks by pas-sengers and other unauthorized persons shall only be permit-ted when such persons are accompanied by an authorized crewmember.

The transport of dangerous goods shall be pro-hibited on any vehicle deck on which the foregoing provisionscannot be met.

2.7.4.8 Closing arrangements for the openings betweenro-ro spaces and machinery and accommodation spaces shallbe such as to avoid the possibility of dangerous vapours andliquids entering such spaces. Such openings shall normally bekept securely closed when dangerous cargo is on board, exceptto permit access by authorized persons or for emergency use.

2.7.4.9 Ro-ro ships may carry dangerous goods in cargotransport units or stowed in the conventional way on vehicledecks, in cargo holds or on weather decks. The provisions forsuch stowage shall be in compliance with the relevant provi-sions laid down in the IMDG Code.

2.7.4.10 Stowage requirements and/or restrictions for in-dividual substances may be specified in the Dangerous GoodsList of the IMDG Code or by the Administration.

2.8 OIL RECOVERY SHIPS

2.8.1 The requirements of this section are in additionto the requirements specified in 2.3 and apply to ships in-tended for recovery operations, including occasionally storageand transportation, of oil with flash point not exceeding 60 oCfrom spills in marine environment oil pollution accidents.

2.8.2 The oil recovery ship shall be provided with:.1 suitable working deck for use in oil recov-

ery opertations;.2 storage tanks for recovered oil;.3 skimming equipment and pumping and

piping arrangments for recovery and trans-fer of oil.

2.8.3 The hull, superstructures, structural bulkheads,decks and deckhouses shall be constructed of steel.

2.8.4 Tanks intended for storage of recovered oil andthe deck area, from where the oil recovery operations are per-formed, shall be as far away from the accommodation andservice spaces and control stations as possible.

2.8.5 The storage tanks shall be separated from the ac-commodation, service and machinery spaces by cofferdams,oil fuel bunker tanks or ballast tanks.

Where cofferdams are fitted a width of not lessthan 600 mm shall be provided.

2.8.6 All openings to the storage tanks, including ac-cess for cleaning and gas-freeing shall be located on the opendeck.

2.8.7 Exterior boundaries of superstructures and deck-houses enclosing accommodation and including any over-hanging decks which support such accommodation, shall beinsulated to "A-60" standard for the whole of the portionswhich face the operation deck area and for 3 m aft or forwardon the sides, as appropriate.

2.8.8 Suitable metal covers, ready to be fitted from in-side, shall be provided for windows and sidescuttles fittedwithin the limits referred to in 2.8.7.

2.8.9 Alternatively, in lieu of the “A-60” class insula-tion required and where it is impractical to fit deadlights toweelhouse windows (see 2.8.7 and 2.8.8), a fixed drenchingsystem (see 3.7) capable of being controled from the wheel-house may be accepted.

2.8.10 Generally, entrances, ventilation openings andall other openings into non-hazardous locations such as ac-commodation, service and machinery spaces shall be locatedoutside hazardous zones.

However, where this is impractical, the Registermay accept entrances between such spaces provided penetra-tion of hazardous vapours is avoided as follows:

.1 air locks complying with 2.8.11 shall beprovided;

.2 spaces shall be fitted with mechanical sup-ply ventilation;

.3 warning signs shall be fitted that doorsshall be kept closed during oil recoveryoperations.

No air locks shall be required for wheelhousedoors provided they can be made rapidly and efficiently gasand vapour tight.

Spaces having openings and entrances located inhazardous zones and not provided with air locks shall be re-garded as hazardous.

2.8.11 An air lock shall consist of two steel doors sub-stantially gastight which shall be spaced not less than 1,5 mapart. The doors shall be selfclosing and without any holdingback arrangements. The door sill shall not to be less than 300mm in height.

The design of air locks shall be such that theyare flushed with air from inside outwards in order to removeany vapours/gases which may have entered when using the airlock.

2.8.12 A portable hydrocarbon vapours-measuring in-strument of approved type shall be provided on board. Fittingof fixed gas detection system is subject to special considera-tion by the Register in each particular case.

2.8.13 For protection of the operation deck area andstorage tanks for recovered oil a fixed deck foam system shallbe provided (see 3.8). Foam may be supplied by means offoam applicators.

2.8.14 In addition to 2.8.13, two dry powder fire extin-guishers, each with a capacity of at least 45 kg shall be pro-vided. The fire extinguishers shall be placed near the operationdeck area where the equipment for handling of recovered oil islocated, and shall be fitted with hoses of adequate length.

2.8.15 The ship shall be provided with the OperationManual, approved by the Register, for the safe use of the ves-sel during oil recovery operation. The Operation Manual ac-


2009

companied by appropriate drawings shall, in general, includethe following information:

.1 procedure for recovery of oil, oil transfer,tank cleaning, gas freeing and ballasting;

.2 fire fighting procedures, including gas de-tection;

.3 stability information in all possible opera-tional conditions.

2.8.16 The requirements specified in Rules, Part 8 –Piping, 4.3, 6.1 and 7.13; and Part 12 - Electrical Equipment,19.2 shall be complied with.


2009

3 FIRE-EXTINGUISHINGSYSTEMS AND ARRANGEMENTS

3.1 FIRE EXTINGUISHINGARRANGEMENTS

3.1.1 Fire-extinguishing arrangements shall enable tosuppress and swiftly extinguish a fire in the space of origin.For this purpose the fixed fire-extinguishing systems shall beinstalled, having due regard to the fire growth potential of the

protected spaces (for the arrangements of the fire-extinguishing appliances see Chapter 5).

3.1.2 In addition to the water fire main system, shipsspaces shall be protected by one of the fixed fire-extinguishingsystems as indicated in Table 3.1.2-1 and specified in sections3.4 to 3.14, unless expressly provided otherwise.

The Register may consider the use of other,equivalent, fire-extinguishing systems also (see 3.2.1.1).

3.1.3 For the fire-extinguishing arrangements in en-gines, see Rules, Part 9 – Machines, 2.2.5.

Table 3.1.2.1-1

Fixed fire-extinguishing systems

Item Spaces

Aut

omat

ic sp

rink

ler

syst

em

Pres

sure

-wat

ersp

rayi

ng sy

stem

Wat

ersc

reen

syst

em

Dre

nchi

ngsy

stem

Foam

syst

em

Car

bon

diox

ide

syst

em

Iner

t gas

syst

em

Wat

er b

ased

syst

em

Dry

pow

der

syst

em

1 2 3 4 5 6 7 8 9 10 11

1. Control stations (see 1.2.2.8and 1.2.2.14), 1

+

2. Accommodation spaces andservices spaces (see 1.2.2.1and 1.2.2.40), 2

+

3. Paint lockers and flammableliquid lockers, 13

+ + +

4. Cargo tanks and cargo tanksdecks area, 3 + +

5. Cargo spaces other than ro-roand vehicle spaces (see1.2.2.7), 4, 6, 7

+ +5 +12

6. Ro-ro and vehicle spaces(see 1.2.2.34 and 1.2.2.44),6, 7

+ +11 +5 + +

7. Machinery spaces, 8, 14, 16 + +5 +15 +

8.

Periodically unattended ma-chinery spaces containingsteam turbines or enclosedsteam engines with a totalaggregate output of not lessthan 375 kW (see Table5.1.2-1, item 5), 14

+ +5 +15 +

9. Exhaust gas uptakes of inter-nal combustion machineryand exhaust gas boilers, fluegas uptakes of boilers and in-cinerators and gas turbine re-generators, 9

+ +


2009

Table 3.1.2.1-1 (continued)

1 2 3 4 5 6 7 8 9 10 11

10. Ventilation ducts(see 2.1.7)

+ +

11. Cargo pump-rooms (see2.4.5), 14

+ +5 +15 +

12.Superstructure outside walls,10 +

13. Special category spaces, 6 + +

14.Cargo area in liquefied gascarriers, cargo piping andcargo manifold

+

15. Incinerator and waste storagerooms

+ + +5 +17 +

16. Helideck (see 2.1.13) +

Notes to Table 3.1.2.1-1:1. Required in:

.1 passenger ships carrying more than 36passengers. Control stations wherewater may cause damage to essentialequipment may be fitted with a fixedfire-extinguishing system of anothertype, approved by the Register;

.2 passenger ships carrying not more than36 passengers, where it is considerednecessary by the Register.

2. Required in:.1 passenger ships carrying more than 36

passengers;For the protection of cabin balconiessee 2.1.1.12.

.2 passenger ships carrying not more than36 passengers, unless fixed fire detec-tion and fire alarm system is installed(see 4.1.1.2.2);For the protection of cabin balconiessee 2.1.1.12.

.3 cargo ships of 500 gross tonnage andupwards, where method IIC of struc-tural fire protection is adopted (see2.3.1.2.2 and 4.1.1.4.1).

3. Fixed deck foam system shall be providedin tankers and combination carriers(≤ 60oC) of 500 gross tonnage and up-wards, and tankers (> 60oC) of 2,000 grosstonnage and upwards.Inert gas system shall be provided in tank-ers and combination carriers (≤ 60oC) of20,000 tonnes deadweight and upwards.Tankers operating with a cargo tankcleaning procedure using crude oil wash-ing shall be fitted with an inert gas systemalso. The washing machines shall be of thefixed type.For inerting of double hull and doublebottom spaces see 2.4.8.

4. Not required in:.1 passenger ships of restricted service,

where deemed reasonably by the Reg-ister, and also in ships of less than

1,000 gross tonnage, provided that theship is fitted with steel hatch coversand effective means of closing all ven-tilators and other openings leading tothe cargo spaces (see 2.7.1.5);

.2 cargo ships of less than 2,000 grosstonnage (see 2.7.1.5).

.3 cargo spaces of any cargo ship if con-structed, and solely intended, for thecarriage of ore, coal, grain, unseasonedtimber non-combustible cargoes orcargoes which, in the opinion of theRegister, constitute a low fire risk,provided that the ship is fitted withsteel hatch covers and effective meansof closing all ventilators and otheropenings leading to the cargo spaces(see Annex 4).

5. Only high-expansion foam system may befitted.For cargo spaces such system shall provideprotection equivalent to those of the car-bon dioxide system.High-expansion foam systems using insideair, which gives equivalent protection, forthe protection of machinery spaces andcargo pump-rooms shall be approved bythe Register and comply with guidelinesspecified in MSC.1/Cir.1271.

6. Open spaces and spaces not capable ofbeing sealed shall be fitted with pressurewater-spraying system.High-expansion foam system may not befitted for container cargo spaces.Fixed water spraying system shall be pro-vided for open top container cargo spacesin lieu of the fixed gas fire-extinguishingsystem required (see MSC/Circ.608).Equivalent fixed water-based fire-extinguishing systems (see MSC/Circ.1272), approved by the Register, may beaccepted in lieu of the fixed pressure-waterspraying system required.


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7. Water spraying system shall be providedfor cooling the cargo spaces intended forthe carriage of dangerous goods of class 1,in addition to the fixed gas fire-extinguishing system required (see2.7.2.1.1.3).

8. Required in all passenger ships and cargoships of 300 gross tonnage and upwards,and applies to:.1 machinery spaces of category A (for

incinerator space see item 15.);.2 all spaces in which, subject to special

approval by the Register, oil fuel hav-ing a flash point of less than 60 oC (butnot less than 43oC) is used;

.3 separate rooms where oil fuel purifiersare installed. A fixed fire-extinguishingsystem capable of being operated fromoutside the room shall be provided.The system shall be separate for theroom, but may be a part of the fixedfire-extinguishing system required forthe machinery space.In passenger ships of 500 gross ton-nage and upwards and in cargo shipsof 2,000 gross tonnage and upwardsmachinery spaces of category A above500 m3 in volume shall, additionally,be protected by the fixed local appli-cation fire-extinguishing system (see3.14).

9. Required in tankers and combination carri-ers (≤ 60oC) and ships serving them, shipsintended for the carriage of dangerousgoods (see 2.7.3.1.7.1) and oil recoveryships.

10. Required as an alternative to the A-60class fire insulation (see 2.8.9).

11. In passenger ships designed for specialpurposes (see 2.2.2.6), a water screen sys-tem shall be fitted in addition to the fixedfire-extinguishing system required.

12. For list of solid bulk cargoes for which afixed gas fire-extinguishing system is noteffective and for which a fire-extinguishing system giving equivalentprotection shall be available see Annex 4,Table 2-1.

13. Paint lockers and flammable liquid lockersof deck area of 4 m2 and more shall beprovided with a fire-extinguishing systemenabling the crew to extinguish a firewithout entering the space. Fixed ar-rangements as specified below may beprovided:.1 carbon dioxide system, designed for

40% of the gross volume of the space;.2 dry-powder system, designed for pow-

der supply of at least 0.5 kg pow-der/m3;

.3 water spraying system designed for atleast 5 l/m2 per minute.Water spraying system may be con-nected to the water fire main system;

.4 systems other than those mentioned inparagraph .1, .2 and .3 may be fittedprovided the Register is satisfied thatan equivalent protection is achieved.

For lockers of deck area less than 4 m2

carbon dioxide or dry-powder fire extin-guisher located in close vicinity to the en-trance of the room may be accepted.Flammable liquid lockers intended forstowage of cargo samples, when suchspaces are located within the cargo area,need not comply with this requirements.

14. Equivalent water-based fire-extinguishingsystems (see MSC/Circ.1165, MSC.1Circ.1237 and MSC.1/Circ.1269), ap-proved by the Register, may be acceptedas alternative arrangements for the protec-tion of machinery spaces and cargo pump-rooms.

15. Equivalent fixed gas fire-extinguishingsystems (see MSC/Circ.848 andMSC.1/Circ.1267) approved by the Reg-ister, may be accepted in lieu of the fixedcarbon dioxide system required (see 3.13).

16. Equivalent aerosol fire extinguishing sys-tems (see MSC.1/Circ.1270), approved bythe Register, may be accepted as alterna-tive arrangements for the protection ofmachinery spaces.

17. For a waste storage space and combinedincinerator and waste storage space anautomatic sprinkler system may be usedonly.Where an incinerator or waste storagespace is located on weather deck it shall beaccessible with two means of fire extin-guishment: either fire hoses, semi-portablefire extinguishers, one of the fire extin-guishing systems specified or combinationof any two of these extinguishing devices.A fixed fire-extinguishing system is ac-ceptable as one means of extinguishment.

3.2 FIXED FIRE-EXTINGUISHINGSYSTEMS


3.2.1.1 Where a fixed fire-extinguishing system not re-quired in section 3.1 is installed, it shall meet the requirementsof the section 1.7 and relevant regulations of this chapter.

3.2.1.2 Fire-extinguishing systems using Halon 1211,1301, and 2402 and perfluorocarbons shall be prohibited (see3.11.1).

3.2.1.3 In general, the Register shall not permit the useof steam as a fire-extinguishing medium in fixed fire-extinguishing systems. Where the use of steam is permitted bythe Register, it shall be used only in restricted areas as an ad-dition to the required fire-extinguishing system and shall com-ply with the requirements of the FSS Code.


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3.2.1.4 Where gas other than carbon dioxide is producedon the ship and is used as a fire-extinguishing medium, thesystem shall comply with the requirements of the FSS Code,Chapter 5, 2.4.

3.2.1.5 The arrangement and location of the fixed fire-extinguishing systems shall provide a ready availability andsimple and rapid operation of the system at ambient and serv-ice conditions normally encountered in ships (see Rules, Part8 – Machinery Installation, 1.6.1).

The system shall provide the delivery of extin-guishing medium into the entire space protected, including theenclosed portions thereof (e.g. engine control rooms, work-shops, etc., in machinery spaces).

3.2.1.6 The use of a fire-extinguishing medium which,in the opinion of the Register, either by itself or under ex-pected conditions of use gives off toxic gases, liquids andother substances in such quantities as to endanger personsshall not be permitted.

3.2.1.7 In each case where two or more adjacent spacesare not entirely separated by gas-tight or watertight bulkheadsor decks or if fuel oil can drain from one space into anotherthe fire-extinguishing medium quantity provided and the rateof supply shall be calculated on the basis of the total grossvolume or area of all such combined spaces which shall beconsidered as one compartment.

3.2.1.8 Where the quantity of the fire-extinguishing me-dium is required to protect more than one space and the pro-tected spaces are entirely separate, the quantity of mediumavailable need not be more than the largest quantity requiredfor any one space so protected.

3.2.1.9 Watertight and gastight doors fitted in the bulk-heads separating adjacent machinery spaces may be consid-ered as closures of openings in such bulkheads only wherethey are of a self-closing type or operated remotely at the lo-cations from which the fire-extinguishing medium may be dis-charged and where the indicators for closed position of suchdoors are provided.

In the absence of such indication the calculationof the required quantity and the rate of discharge of the fire-extinguishing medium shall be based on the requirement ofproviding for the total volume or area of the adjacent spaces.

3.2.1.10 In multi-deck ships, one ‘tweendeck may beconsidered as separated from another ‘tweendeck or hold by agastight deck, provided the cargo hatchways, access hatch-ways and other openings including penetrations of structuralelements in the deck are provided with watertight or gastightsteel covers or similar means of closure.

In the absence of such covers or means of clo-sure, the spaces shall be considered as combined, and the fire-extinguishing medium quantity provided shall be based on thetotal volume or area of such spaces.

3.2.1.11 Where a machinery space protected by means ofgas fire-extinguishing system contains starting air receivers,the required quantity of the fire-extinguishing medium shall becalculated on the basis of gross volume of the protected spaceplus the volume of air receivers converted to free air volume,except where means are provided to discharge the air from thesafety valves directly to the open air.

3.2.1.12 The calculation of the required quantity and therate of application of the fire-extinguishing medium shall in-clude the volume of the free standing fuel and lubricating oiltanks located within the protected space with the exception oftanks located in the double bottom.

In so doing only the volume or area of the onelargest tank of separately arranged tanks or the one largestgroup of the adjacent tanks may be added to the gross volumeor area of the protected space.

3.2.1.13 In order to prevent excessive overpressure in thespaces protected by the fire-extinguishing system due to dis-charge of fire-extinguishing medium, where necessary, suchspaces shall be provided with the breather valves or other suit-able means (e.g. air pipes or ventilation ducts may be used).

3.2.1.14 Means shall be provided for the crew to safelycheck the quantity of the fire-extinguishing medium stored inthe containers.

3.2.1.15 Containers for the storage of fire-extinguishingmedium and associated pressure components shall be designedto pressure codes of practice to the satisfaction of the Registerhaving regard to their locations and maximum ambient tem-peratures expected in service (see Rules, Part 10 – Boilers,Heat Exchangers and Pressure Vessels).

For the requirements for electrical componentssee Rules, Part 12 – Electrical Equipment.

3.2.1.16 Except as otherwise permitted by the Register,pressure containers required for the storage of the fire-extinguishing medium, other than steam, shall be located out-side the protected spaces in accordance with the requirementsspecified in 3.2.4.

3.2.1.17 The sources of power supply and fire-extinguishing medium supply including pumps, other thanthose serving the fire main system, required for the provisionof water for fire-extinguishing systems required by this chap-ter, shall be installed outside the space or spaces protected bysuch systems and shall be so arranged that a fire in the spaceor spaces protected will not put any such system out of action.

3.2.1.18 Spare parts for the fire-extinguishing systemsshall be stored on board and be to the satisfaction of the Reg-ister (see Table 5.2.1-1).

3.2.2 Piping and fittings

3.2.2.1 Piping and fittings for the fixed fire-extinguishing systems shall comply with the following re-quirements:

.1 fixed piping shall be provided for con-veying and distribution of the fire-extinguishing medium into the protectedspaces. The piping shall be arranged anddischarge nozzles so positioned that a uni-form distribution of the medium is ob-tained;

.2 piping conveying the gas fire-extinguishing medium may pass throughaccommodation areas provided that it is ofsubstantial thickness and that its tightnessis verified with a pressure test, after theirinstallation (see Table 3.15.1-1.). In addi-tion, piping passing through accommoda-


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tion areas shall be joined only by welding(butt joints fully radiographed) and shallnot be fitted with drains or other openingswithin such spaces.Flange connections in the piping may bepermitted in corridors serving the accom-modation area but they shall be kept to thelesser extent possible;

.3 piping shall not be laid through fuel oiland lubricating oil tanks and it shall notpass through refrigerated spaces also;

.4 where a cargo space fitted with a gas fire-extinguishing system is used temporarilyas a passenger space, the gas branch pipingfor that particular space shall be blankedduring such use;

.5 means shall be provided for periodicallytesting of fire-extinguishing piping in op-eration. For gas and dry powder fire-extinguishing systems compressed air maybe used for testing.Compressed air connection for testing ofpiping shall be provided with closing non-return valve;

.6 packings used in the piping joints shall bemade of non-combustible material whichdo not react with fire-extinguishing mediaand which is suitable for use in marine en-vironment.

3.2.2.2 Unless expressly provided otherwise, the pipesused for the fire-extinguishing systems shall be made of steel(see 3.9.2.3).

Steel pipes shall be corrosion protected, both in-side and outside.

3.2.2.3 Sprinklers, nozzles, spray-nozzles and otherequipment and fittings ensuring efficient and trouble-free op-eration of the fire-extinguishing systems shall be made of ma-terials resistant to marine environment and approved by theRegister.

3.2.3 Operation and system controlrequirements

3.2.3.1 The fixed fire-extinguishing systems shall be ca-pable of being started directly from the fire control station, andthe fire pumps, if any, from the position where they are in-stalled, irrespective of remote starting arrangements beingprovided.

3.2.3.2 The means of control of any fixed fire-extinguishing system shall be readily accessible, simple to op-erate and shall be grouped together in as few locations as pos-sible at positions not likely to be cut off by a fire in a protectedspace. At each location there shall be clear instructions relat-ing to the operation of the system having regard to the safetyof personnel.

3.2.3.3 Where the fire extinguishing medium protectingthe cargo holds is stored in a room located forward of thecargo holds (see 3.2.4.1), both the local manual releasemechanism and remote control(s) for the release of mediumshall be fitted, and the latter shall be of robust construction orso protected as to remain operable in case of fire in the pro-

tected spaces. The remote controls shall be placed in the ac-commodation area in order to facilitate their ready accessibil-ity by the crew. The capability to release different quantities offire extinguishing medium into different cargo holds so pro-tected shall be included in the remote release arrangement.

3.2.3.4 For the protection of fire control stations outsidemachinery spaces from spread of smoke see 2.1.6.

3.2.3.5 Where the fixed fire-extinguishing system pro-tects more than one space the necessary pipes for conveyingfire-extinguishing medium into the protected spaces shall befitted with normally closed control valves located in the firecontrol station and so marked as to indicate clearly the spacesto which the pipes are led.

3.2.3.6 Starting of the fixed fire-extinguishing systemsshall be actuated manually. Automatic release of fire-extinguishing medium shall not be permitted except as speci-fied in 3.4, 3.7.1.1, 3.11.2.3.5, 3.11.3 and 3.14.

3.2.3.7 Suitable provisions shall be made to prevent in-advertent and accidental starting of fire-extinguishing systemsand admission of the medium to any space under any serviceconditions including the effects of such factors as ship’smovements, shaking and vibration.

Means shall be provided to seal the starting han-dles, where find necessary.

3.2.3.8 Remote starting arrangements using compressedgas shall be provided with one complete spare charge readyfor use.

3.2.4 Storage rooms of fire-extinguishingmedium

3.2.4.1 When the fire-extinguishing medium is storedoutside a protected space, it shall be stored in a room which islocated behind the forward collision bulkhead, and is used forno other purposes. Any entrance to such a storage room shallpreferably be from the open deck and shall be independent ofthe protected space.

3.2.4.2 The size of the room and the arrangement of theequipment therein shall be conducive to efficient operationand maintenance. For the purpose of the application of theminimum fire integrity standards for the bulkheads and decksseparating adjacent spaces, such storage rooms shall be treatedas fire control stations. The entrance to the room shall bereadily accessible and at position not likely to be cut off by afire in a protected space.

3.2.4.3 The storage room for the fixed deck foam sys-tem shall be suitably located outside the cargo area, adjacentto the accommodation spaces and readily accessible and oper-able in the event of fire in the areas protected.

3.2.4.4 If the storage room is located below deck, itshall be located no more than one deck below the weatherdeck and shall be directly accessible by a stairway or ladderfrom the weather deck.

3.2.4.5 Storage rooms which are located below deck orrooms where access from the weather deck is not providedshall be fitted with a mechanical ventilation system designedto take exhaust air from the bottom of the space and shall besized to provide at least 6 air changes per hour. Access doors


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shall open outwards, and bulkheads and decks, includingdoors and other means of closing any opening therein, whichform the boundaries between such rooms and adjacent en-closed spaces shall be gastight.

3.2.4.6 The storage room shall be suitably thermally in-sulated having regard to their location and maximum ambienttemperatures expected in service.

3.2.4.7 Containers for storage of the fire-extinguishingmedia (other than foam concentrate), pressure tanks, carbondioxide cylinders, compressed air bottles and nitrogen con-tainers used in fire-extinguishing systems shall meet the rele-vant requirements for pressure vessels and air bottles specifiedin Rules, Part 10 – Boilers, Heat Exchangers and PressureVessels.

3.3 WATER FIRE MAIN SYSTEM

3.3.1 Number and capactiy of fire pumps

3.3.1.1 Ship shall be provided with fire pumps, firemains, hydrants and fire hoses complying, with the require-ments of this section, as applicable.

3.3.1.2 The minimum number of the fixed fire pumps(other than any emergency fire pump) and the minimum pres-sures maintained at all hydrants, with the two pumps simulta-neously delivering water through the nozzles specified in 3.3.6with the quantity of water as specified in 3.3.1.3, through anyadjacent hydrants, shall be as prescribed in Table 3.3.1.2-1.

In any case the maximum pressure at any hy-drant shall not exceed that at which effective control of a firehose can be demonstrated.

Table 3.3.1.2-1

Passenger ships Cargo ships

Gross tonnageNumber of firepumps (other

than emergencyfire pump)

Minimumpressure athydrants[MPa]

Gross tonnageNumber of firepumps (other

than emergencyfire pump)

Minimumpressure athydrants[MPa]

Less than 3001 1 0.252 Less than 500 1 0.22

Less than 1,000 2 0.3 Less than 1,000 2 0.25Less than 4,000 2 0.3 Less than 6,000 2 0.264,000 and upwards 3 0.4 6,000 and upwards 2 0.28

Notes to Table 3.3.1.2-1:1. Only valid for the passenger ships of restricted service.2. With one pump delivering water.

3.3.1.3 The required fire pumps, other than any emer-gency fire pump, shall be capable of delivering for fire fight-ing purposes a quantity of water, at the pressure specified in3.3.1.2, which shall be not less than that calculated by theformula:

Q = k ⋅ m2

where:Q = quantity of water, [m3/h];m = 1.68 ( )DBL +⋅ + 25;k = coefficient equal to:

0.016 , for passenger ships havingbilge pump numeral equal to orexceeding 30 (see Rules, Part 8 – Pip-

ing, 2.1);0.012 for passenger ships having bilgepump numeral less than 30;0.008 for ships other than passengerships.

For L, B and D see Rules, Part 5 - Subdivision,1.2.

For catamarans and similar ships the requiredfire pumps shall be capable of delivering a quantity of water

equal to the value obtained for one hull and multiplied withthe number of hulls provided.

3.3.1.4 In cargo ships the total capacity of fire pumps,other than emergency fire pump, need not exceed 180 m3/h,unless a larger capacity is required in order to ensure the si-multaneous operation of other fire-extinguishing systems us-ing water.

In a later case the total capacity of fire pumpsshall be capable of delivering a quantity of water sufficient forsimultaneous operation of the water fire main system with atleast two jets of water at the required pressure and one of theanother systems which requires the largest quantity of water.

3.3.1.5 When determining the total capacity of firepumps, the capacity of the fixed fire pumps fitted in the for-ward part of tankers and combination carriers (≤ 60oC) shallnot be taken into account.

3.3.1.6 The capacity, pressure head and number of mainfire pumps for floating docks shall comply with the require-ments for water fire main system in the cargo ship the floatingdock is designed to carry.

3.3.1.7 Each of the required fire pumps, other than anyemergency pump, shall have a capacity not less than 80% ofthe total required capacity divided by the minimum number ofrequired fire pumps but in any case not less than 25 m3/h and


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each such pump shall in any event be capable of delivering atleast the two jets of water through nozzles of the largest sizefitted.

These fire pumps shall be capable of supplyingthe fire main system under the required conditions. Wheremore pumps than the minimum of required pumps are in-stalled, such additional pumps shall have a capacity of at least25 m3/h and shall be capable of delivering at least the two jetsof water as required in 3.3.5.2.

3.3.1.8 In passenger ships of restricted service of lessthan 300 gross tonnage, and in cargo ships of less than 500gross tonnage but not less than 300, capacity of the requiredfire pumps need be not greater than 25 m3/h and shall be not lessthan 15 m3/h.

3.3.1.9 Ballast, bilge or general service pumps havingthe capacity and pressure as required in 3.3.1.2 may be ac-cepted as fire pumps, provided that they are not normally usedfor pumping oil and that, if they are subject to occasional dutyfor the transfer or pumping of oil, suitable change-over ar-rangements are fitted.

3.3.1.10 In cargo ships where other pumps, such as gen-eral service, bilge and ballast, etc., are fitted in a machineryspace, arrangements shall be made to ensure that at least oneof these pumps, if have the capacity and pressure required forfire pumps, is capable of providing water to the fire main.

3.3.1.11 Fixed fire pumps, including an emergency firepump, may be used for other shipboard services, if the ship isprovided with at least two independently driven pumps, one ofwhich is at all times kept readily available for the fire fightingpurpose.

In passenger ships of less than 300 gross tonnageand cargo ships of less than 500 gross tonnage a fire pumpmay be used for emergency bilge service in machinery spaces.

3.3.2 Arrangement of fire pumps

3.3.2.1 In passenger ships of 1,000 gross tonnage andupwards the arrangement of sea suctions, fire pumps and theirsources of power shall be such as to ensure that in the event offire in any one compartment all the fire pumps will not be putout of action. The boundary between adjacent compartmentswhere the fire pumps are located shall not be formed by morethan one bulkhead or deck and shall be of at least A-0 classintegrity.

3.3.2.2 In passenger ships of less than 1,000 gross ton-nage and in cargo ships of 500 gross tonnage and upwards, if afire in any one compartment could put all the pumps out ofaction, there shall be an alternative means consisting of anemergency fire pump complying with the requirements pre-scribed in 3.3.3 with its source of power and sea suction lo-cated outside the space where the main fire pumps or theirsources of power are located.

3.3.2.3 In catamarans and similar ships for which notless than two fire pumps are required in compliance with Ta-ble 3.3.1.2-1, at least one pump with its power supply and seasuction shall be located in each hull.

3.3.2.4 Passenger ships of restricted service, of less than300 gross tonnage, and cargo ships of less than 500 gross ton-nage, but not less than 300, shall be provided with an emer-

gency fire pump which may be portable motor pump (see5.1.17).

3.3.2.5 Generally, fixed fire pumps shall be driven froman independent source of power (other than ship's propulsionmachinery), the use of belt drive to the pump being not per-mitted.

In cargo ships of less than 1,000 gross tonnage atleast one of the required fire pumps shall be independentlydriven pump.

In cargo ships of less than 500 gross tonnage andin passenger ships of restricted service, of less than 150 grosstonnage, fire pump may be coupled to the propulsion machin-ery, provided that the power take-off is so designed as to per-mit operation of fire pump when the ship is not under wayalso.

3.3.2.6 Fire pumps and their power sources shall not belocated forward of the collision bulkhead.

In cargo ships Register may, on special request,permit exceptions to this requirements.

3.3.2.7 Fire pumps shall be fitted with the pressuregauge on the pressure side.

Relief valve shall be provided in conjunctionwith all fire pumps if the pumps are capable of developing apressure exceeding the design pressure of the water servicepipes, hydrants and hoses. This valve shall be so placed andadjusted as to prevent pressure higher than 10 per cent in ex-cess of the design pressure in any part of the fire main system.Pressure relief valve shall be connected to the suction side ofthe pump.

3.3.2.8 Each fire pump shall be fitted with shut-offvalves on the suction and discharge pipes. The use of gatevalves on the suction pipe is permitted.

Centrifugal fire pumps shall be connected to thefire main system by means of screw-down non return valve ora combination of shut-off and a non-return device.

3.3.2.9 Fixed fire pumps and their sea connections shallbe located as deep as possible below the ship's lowest servicewaterline. Where such an arrangement is impractical, thepumps shall be of selpriming type or shall be connected to apriming system

3.3.2.10 Fire pumps located outside machinery spaces ofcategory A shall have an independent sea connection in thecompartment in which they are located.

3.3.2.11 Provision shall be made for supplying at leastone of the fire pumps in the machinery space with water fromtwo sea chests.

On ships intended for service in iced sea condi-tions at least one of the main fire pumps shall be connected toa sea chest which is provided with de-icing arrangements.

3.3.2.12 All fire pumps, including the emergency firepump, shall be located in spaces with positive temperature.

3.3.2.13 In passenger ships of 1,000 gross tonnage andupwards, the arrangements for the ready availability of watersupply shall be such that at least one effective jet of water isimmediately available from any hydrant in an interior locationand so as to ensure the continuation of the output of water bythe automatic starting of one of the required fire pumps.


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3.3.2.14 In passenger ships of less than 1,000 gross ton-nage and in cargo ships with the fire pumps located in a peri-odically unattended machinery space or when only one personis required on watch, there shall be immediate water deliveryfrom the fire main system at a suitable pressure either by re-mote starting of one of the required main fire pumps from thenavigating bridge and central fire station, if any, or by perma-nent pressurization of the fire main system and automatic startof one of the main fire pumps.

Means shall be provided for indication of pres-sure head in the fire main at remote starting of the fire pump.

3.3.2.15 When the fire pump starts automatically or if theassociated shut-off valves from the sea water inlet are not ca-pable to be opened from the position where the pump is re-motely started, the valves shall be permanently kept open andprovided with appropriate warning sign, e.g.:

“Keep the valve open!”

3.3.2.16 The Register my waive the requirement in3.3.2.14 for cargo ships of less than 1,600 gross tonnage if thefire pump starting arrangement in the machinery space is in aneasily accessible position.

3.3.3 Emergency fire pump

3.3.3.1 The emergency fire pump shall be of the fixedtype and independently driven either by the diesel drivenpower source or by the electric motor supplied by emergencysource of electrical power, or similar.

3.3.3.2 Emergency fire pump, its source of power, con-trol, sea chest, suction and delivery pipes and isolation valves,shall be located outside the machinery space containing themain fire pumps.

If this arrangement cannot be made, the seachest may be fitted in the machinery spaces provided the fol-lowing is complied with:

.1 the bottom valve shall be remotely con-trolled from a position near the pump, inthe same compartment;

.2 the suction piping which penetrates themachinery space shall be as short as prac-ticable and enclosed in a substantial steelcasing or shall be insulated to “A-60” classstandards. The pipes shall have substantialwall thickness, but in no case less than 11mm, and shall be welded except for theflanged connection to the sea inlet valve.

3.3.3.3 Where necessary to ensure priming, the emer-gency fire pump located above the lowest service waterlineshall be of the self-priming type.

The total suction head and the net positive suc-tion head of the pump shall be such that the requirements pre-scribed by 3.3.3.9 shall be obtained under all conditions of list,trim, roll and pitch likely to be encountered in service, otherthan ballast condition for entering or leaving a dry dock.

3.3.3.4 It shall be demonstrated by calculation that therequirements specified in 3.3.3.3 are satisfied at:

.1 the lightest seagoing condition with ac-count being taken of 22.5° roll and 10°pitch (for the ships exceeding 100 m in

length, the pitch may be taken as 500/Ldegrees); and

.2 a loading condition without cargo or bal-last water, with 10% stores and fuel re-maining, without roll and pitch being takeninto account. Upon completion of theemergency fire pump installation, a per-formance test confirming the capacity re-quired in 3.3.3.9 shall be carried out. Asfar as practicable, the test shall be carriedout at lightest seagoing draught at the suc-tion position.

3.3.3.5 The space containing the emergency fire pumpshall not be contiguous to the boundaries of machinery spacesof category A or those spaces containing main fire pumps.Where this is not practicable, the common bulkhead or deckbetween the two spaces shall be insulated to a standard ofstructural fire protection equivalent to that required for a con-trol station.

When a single access to the emergency firepump room is through another space adjoining a machineryspace of category A or those spaces containing the main firepumps, the common bulkhead or deck between such spacesshall be insulated to a standard of structural fire protectionequivalent to that required for a control station.

No direct access shall be permitted between themachinery space and the space containing the emergency firepump and its source of power. When this is impracticable theRegister may accept an arrangement where the access is bymeans of an airlock, with the door of the machinery space be-ing of “A-60” class standard and the other door being at leaststeel, both reasonably gastight, self-closing and without anyhold-back arrangements. Alternatively, the access may bethrough a watertight door capable of being operated from aspace remote from the machinery space and the space con-taining the emergency fire pump and unlikely to be cut off inthe event of fire in those spaces. In such cases a second meansof access to the space containing the emergency fire pump andits source of power shall be provided.

3.3.3.6 It is recommended that in tankers and combina-tion carriers (≤ 60oC) the emergency fire pump and its seawater inlet valve are operated from the place where they arelocated and from the open deck.

3.3.3.7 Where a diesel driven power source is providedfor the emergency fire pump a service fuel tank shall be lo-cated in the space containing the pump and shall contain suffi-cient fuel to enable the pump to run on full load for at leastthree hours. Sufficient reserves of fuel shall be available, out-side the machinery spaces of category A and spaces containingmain fire pumps, to enable the pump to be run on full load foran additional 15 h.

Any diesel driven power source for the pumpshall be capable of being readily started in its cold conditiondown to a temperature of 0 oC by hand (manual) cranking. Ifthis is impracticable, or if lower temperatures are likely to beencountered, consideration shall be given to the provision andmaintenance of heating arrangements, acceptable to the Reg-ister, so that ready starting will be assured.

If hand (manual) starting is impracticable and/orwhere the power output of the engine exceeds 15 kW, an in-dependent starting device shall be provided. The starting de-


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vice shall be such as to enable the diesel driven power sourceto be started at least six times within a period of 30 min, and atleast twice within the first 10 min.

3.3.3.8 Power source for electric motor driven emer-gency fire pump shall be independent of power source formain fire pumps and shall be located outside the machineryspaces and the spaces containing main fire pumps.

The boundaries of the space containing powersource for emergency fire pump shall be insulated to a stan-dard of structural fire protection equivalent to that required forcontrol station.

No electric cables used for power distribution toemergency fire pump shall be laid through machinery spacesand spaces containing main fire pumps and their sources ofpower. The cables shall be of a fire resistant type where theypass through other high fire risk areas.

3.3.3.9 The capacity of the emergency fire pump shallbe sufficient for the simultaneous operation of at least two firehose nozzles coupled to any adjacent hydrants, at the pressurespecified in Table 3.2.1.2-1, and shall be not less than 40% ofthe total required capacity of the fire pumps (see 3.3.1.3) andin any case not less than:

.1 25 m3/h, in passenger ships of less than1,000 gross tonnage and in cargo ships of2,000 gross tonnage and upwards;

.2 15 m3/h, in cargo ships of less than 2,000gross tonnage.

3.3.3.10 If the emergency fire pump is the main supply ofwater for any fixed fire extinguishing system provided to pro-tect the space where the main fire pumps and their sources ofpower supply are located, the pump shall have the capacity forthis system and, in addition, the capacity required in 3.3.3.9.

3.3.3.11 Ventilation arrangements to the spaces contain-ing the emergency fire pump and the independent source ofpower supply for the emergency fire pump shall be such as topreclude, as far as practicable, the possibility of smoke from amachinery space fire entering or being drawn into thesespaces.

The mechanical ventilation and lighting of thesespaces shall be supplied from the emergency source of power.

3.3.3.12 The rooms where the emergency fire pump andthe independent source of power supply for the pump are in-stalled shall have adequate space for maintenance work andinspections.

3.3.4 Piping

3.3.4.1 The diameter of the fire main and water servicepipes shall be sufficient for the effective distribution of themaximum required discharge from two fire pumps operatingsimultaneously.

In case of cargo ships the diameter need only besufficient for the discharge of not more than 140 m3/h.

3.3.4.2 Inside diameter of the fire main shall be not lessthan that calculated by the formula:

dFi = 0.8 ⋅ m, [mm]

where:

m = 1.68 ( )DBL +⋅ +25, [mm];

For L,B and D see Rules, Part 5. – Subdivision, 1.2.In passenger ships the diameter of the fire main

need not to exceed 175 mm, in cargo ships 130 mm respec-tively. In any case the diameter of the fire main shall be notless than 50 mm.

3.3.4.3 In ships of 500 gross tonnage and upwards thefire main and water service pipes shall be designed for theworking pressure of the fire pumps and in no case less than 1MPa (see 3.3.7).

3.3.4.4 Materials readily rendered ineffective by heatshall not be used for fire mains and hydrants unless adequatelyprotected. The pipes and hydrants shall be so placed that thefire hoses may be easily coupled to them. The arrangement ofpipes and hydrants shall be such as to avoid the possibility offreezing. Isolation valves shall be installed for all open deckfire main branches used for purposes other than fire fighting.In ships where deck cargo may be carried, the positions of thehydrants shall be such that they are always readily accessibleand the pipes shall be arranged as far as practicable to avoidrisk of damage by such cargo.

3.3.4.5 Means shall be provided to drain the fire mainand water service pipes led on the open deck in order to pre-vent the possibility of freezing.

3.3.4.6 In ships of 500 gross tonnage and upwards ar-rangement of fire main branch pipes shall enable the interna-tional shore connection to be used on either side of the ship(see 3.3.7).

3.3.4.7 In passenger ships of 4,000 gross tonnage andupwards the water fire main system shall be arranged in wayof superstructure in a form of ring with suitably located isola-tion valves and it shall be laid above the bulkhead deck.

3.3.4.8 Isolation valves to separate the section of the firemain within the machinery spaces containing the main firepumps from the rest of the fire main shall be fitted in an easilyaccessible and tenable position outside the machinery spaces.The fire main shall be so arranged that when the isolationvalves are shut all the hydrants on the ship, except those in themachinery space referred to above, can be supplied with waterby another fire pump or emergency fire pump through pipeswhich do not enter that space.

3.3.4.9 Any part of the fire main routed through a cate-gory A machinery space must be fitted with isolation valvesoutside of the space. The arrangements of the fire main shallallow for water from the fire pumps or emergency fire pumpto reach all hydrants outside of the isolated space.

3.3.4.10 No branch pipes from the fire main, other thanthose used for fire fighting and for deck washing and hawseflushing, shall be fitted. The control valve for hawse flushingshall be fitted with warning sign instructing personnel to closeit after use.

3.3.4.11 In tankers and combination carriers (≤ 60oC) andtankers (> 60oC) of 2,000 gross tonnage and upwards the wa-ter fire main shall be fitted with isolation valves in a protectedposition at the poop front and on the tank deck immediatelyforward of the connection to each foam monitor, but not morethan at intervals of 40 m, to enable damaged sections to beisolated.


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3.3.4.12 A common line for water fire main and deckfoam line can only be accepted provided it can be demon-strated that the fire hose nozzles can be effectively controlledby one person when supplied from the common line at a pres-sure needed for operation of the monitors.

The simultaneous use of at least two jets of wa-ter at the required pressure shall be possible on deck over thefull length of the ship, in the accommodation and servicespaces, control stations and machinery spaces.

3.3.4.13 Relief valves shall be provided in conjunctionwith fire pumps if the pumps are capable of developing a pres-sure exceeding the design pressure of the water service pipes,hydrants and hoses. These valves shall be so placed and ad-justed as to prevent excessive pressure in any part of the firemain system.

3.3.5 Number and position of fire hydrants

3.3.5.1 Fire hydrants shall be provided with a closingvalve and a standard quick-acting coupling. Hydrants fitted onweather deck shall have quick-acting plugs also.

3.3.5.2 The number and location of hydrants shall besuch that at least two jets of water not emanating from thesame hydrant, one of which shall be from a single length offire hose (see 5.1.4.1), may reach any part of the ship normallyaccessible to the passengers or crew while the ship is beingnavigated and any part of any cargo space when empty. Fur-thermore such hydrants shall be positioned near the accessesto the protected space.

On weather decks intended for stowage of con-tainers two jets of water shall be delivered onto each accessi-ble vertical side of containers, each jet being from a singlelength of fire hose.

In special category spaces, ro-ro spaces and ve-hicle spaces the two jets shall reach any part of such a space,each jet being from a single length of fire hose.

In passenger ships, the number and location ofhydrants, in accommodation, service and machinery spacesshall be such that the afore prescribed requirements may becomplied with when all watertight doors and all doors in mainvertical zone bulkheads are closed.

In a ship having a landing platform for helicop-ters the number and location of hydrants shall be such as toprovide two jets of water for any part of the platform.

3.3.5.3 In any case, in an interior locations hydrantsshall be spaced not more than 20 m apart, and in an exteriorlocations not more than 40 m apart.

On weather decks and in way of superstructure,hydrants shall be located near the entrances and hatchways ortrunks leading into the enclosed spaces.

3.3.5.4 Hydrants shall not be placed at the ends of dead-end corridors, in special electrical spaces or closed or rarelyattended spaces.

3.3.5.5 In ships where deck cargo may be carried, hy-drants shall be protected against damage from such cargo,where find neccessary.

3.3.5.6 One hydrant shall be fitted on the discharge pipeclose to the fire pump, between pump and shut-off valve.

3.3.5.7 In machinery spaces of category A there shall beprovided not less than two hydrants (see 3.3.5.2), one on eachside of the ship.

In ships of less than 500 gross tonnage, the hy-drant fitted close to the fire pump may be used as one of theafore mentioned hydrants.

In ships of less than 300 gross tonnage a singlehydrant, fitted close to the fire pump, is sufficient.

3.3.5.8 Where, in a passenger ship, access is provided toa machinery space of category A at a low level from an adja-cent shaft tunnel, two hydrants shall be provided external to,but near the entrance to that machinery space. Where such ac-cess is provided from other spaces, in one of those spaces twohydrants shall be fited near the entrance to the machineryspace of category A. Such provisions need not be providedwhere the tunnel or adjacent spaces are not part of the escaperoute.

3.3.5.9 In cargo ships of 2,000 gross tonnage and up-wards one hydrant shall be provided in shaft tunnel, if the tun-nel is part of the escape route from the machinery space ofcategory A.

3.3.5.10 All hydrants shall be painted red.

3.3.6 Fire hoses and nozzles

3.3.6.1 Generally, ships shall be provided with firehoses the number, length and diameter of which shall complywith the size of the ship and type of the ship's spaces.

3.3.6.2 In passenger ships there shall be provided atleast one fire hose for each of the hydrants required (see 3.3.5)and these hoses shall be used only for the purposes of extin-guishing fires or testing the fire-extinguishing apparatus at firedrills and surveys.

In cargo ships, unless one hose and nozzle isprovided for each hydrant in the ship, there shall be completeinterchangeability of hose couplings and nozzles.

3.3.6.3 In cargo ships not less than one fire hose shall beprovided for each 30 m length of the ship or part thereof andone spare, but not less than five hoses in all for ships of 1,000gross tonnage and upwards and not less than three hoses in allfor ships of less than 1,000 gross tonnage.

This does not include the fire hoses for machin-ery spaces where hoses shall be provided for each of the hy-drants required (see 3.3.5).

The Register may increase the number of hosesrequired so as to ensure that hoses in sufficient number areavailable and accessible at all times, having regard to the typeof ship and the nature of trade in which the ship is employed.Ships carrying dangerous goods (see section 2.7) shall be pro-vided with three hoses and nozzles, in addition to those re-quired above.

3.3.6.4 The fire hoses provided shall be sufficient inlength to project a jet of water to any of the spaces in whichthey may be required to be used (see 5.1.4).

3.3.6.5 Fire hoses, together with any necessary fittingsand tools, shall be kept ready for use in conspicuous positionsnear the water service hydrants and stowed on suitable reels orin baskets.


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In interior locations in passenger ships carryingmore than 36 passengers, fire hoses shall be connected to thehydrants at all times.

3.3.6.6 On weather decks fire hoses shall be kept inventilated lockers, protected from weather. The lockers shallbe painted red and marked with letter "H".

3.3.6.7 The diameter of the fire hose nozzles shall suitthe operation of the water fire main system with required dis-charge of water from the fire pumps (see 5.1.5).

3.3.6.8 For accommodation and service spaces, a nozzlesize greater than 12 mm need not be used. In passenger shipsof restricted service of less than 300 gross tonnage and cargoships of less than 500 gross tonnage, a nozzle size greater than10 mm need not be used.

3.3.6.9 For machinery spaces and exterior locations, thenozzle size shall be such as to obtain the maximum dischargeof water possible from two jets at the pressure specified in3.3.1.2, from the smallest pump, provided that a nozzle sizegreater than 19 mm need not be used.

3.3.7 International shore connection

3.3.7.1 Ships of 500 gross tonnage and upwards shall beprovided with at least one international shore connection com-plying with the requirements specified in 5.1.18.

3.3.7.2 Facilities shall be available enabling such a con-nection to be used on either side of the ship.

3.4 AUTOMATIC SPRINKLERSYSTEM


3.4.1.1 Any required automatic sprinkler, fire detectionand fire alarm system (automatic sprinkler system) shall com-ply with the requirements as given in this section. An equiva-lent sprinkler systems (see resolution A.800(19)), approved bythe Register may be accepted as an alternative arrangements.

3.4.1.2 The automatic sprinkler system shall be capableof immediate operation at all times and no action by the crewshall be necessary to set it in operation. It shall be of the wetpipe type but small exposed sections and sections in refriger-ated chambers may be of the dry pipe type where, in theopinion of the Register, this is a necessary precaution. Anyparts of the system which may be subjected to freezing tem-peratures in service shall be suitably protected against freez-ing.

Saunas shall be fitted with a dry pipe system,with sprinkler heads having an operating temperature up to140°C.

3.4.1.3 The automatic sprinkler system shall be keptcharged at the necessary pressure and shall be automaticallyput in operation when the temperatures in the protected spacerise to the values specified in 3.4.4.2.

3.4.1.4 Arrangements for a continuous supply of waterto sprinkler system shall include a pressure tank, section stopvalves, a power pump and suitable means of replenishing the

air under pressure in the tank and ensuring instantaneous de-livery of water to the opened sprinklers, both automaticallystarting.

3.4.1.5 The pressure tank, pump and the piping of thesprinkler system, except for the piping connecting the sprin-kler system to the water fire main system, shall be independentof all other systems.

3.4.1.6 The sprinkler pump, including an independentinternal combustion engine intended for its power supply,where provided, and pressure tank shall be situated in a posi-tion reasonably remote from any machinery space of categoryA and shall not be situated in any space required to be pro-tected by the sprinkler system.

The fire in any protected space shall not affectthe air supply to internal combustion engine intended forpower supply for the pump.

3.4.1.7 A gauge indicating the pressure in the systemshall be provided in the central control station for the system(see 3.4.6.2).

3.4.1.8 A quantity of spare sprinkler heads shall be pro-vided for all types and ratings installed on the ship as indicatedin the following table.

Total number of heads Required number of spares< 300

300 to 1,000> 1,000

61224

The number of spare sprinkler heads of any type need not ex-ceed the total number of heads installed of that type.

3.4.2 Sprinkler pump

3.4.2.1 An independent power pump shall be providedsolely for the purpose of continuing automatically the dis-charge of water from the sprinklers. The pump shall bebrought into action automatically by the pressure drop in thesystem before the standing fresh water charge in the pressuretank is completely exhausted.

Means shall be provided for testing the auto-matic operation of the pump on reduction of pressure in thesystem.

3.4.2.2 The pump and the piping system shall be capa-ble of maintaining the necessary pressure at the level of thehighest sprinkler to ensure a continuous output of water suffi-cient for the simultaneous coverage of a minimum area of 280m2 at the application rate specified in 3.4.4.1.

The hydraulic capability of the system shall beconfirmed by the review of hydraulic calculations, followedby a test of the system, if deemed necessary by the Register.

3.4.2.3 The pump shall have fitted on the delivery side atest valve with a short open-ended discharge pipe. The effec-tive area through the valve and pipe shall be adequate to per-mit the release of the required pump output while maintainingthe pressure in the system specified in 3.4.3.2.

3.4.2.4 The sea inlet to the pump shall wherever possi-ble be in the space containing the pump and shall be so ar-ranged that when the ship is afloat it will not be necessary to


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shut off the supply of seawater to the pump for any purposeother than the inspection or repair of the pump.

3.4.2.5 The sprinkler system shall have a connectionfrom the ship's fire main by way of a lockable screw-downnonreturn valve at the connection which will prevent abackflow from the sprinkler system to the fire main.

3.4.3 Pressure tank

3.4.3.1 A pressure tank shall be fitted with the followingaccessories and instruments:

.1 arrangements for maintaining the air pres-sure in the tank;

.2 a glass gauge to indicate the correct levelof the water in the tank and a low waterlevel and low pressure alarms provided inthe propulsion machinery control room;

.3 pressure relief valve;

.4 pressure gauge.

3.4.3.2 The pressure tank shall contain a standingcharge of fresh water equivalent to the amount of water whichwould be discharged in one minute by the sprinkler pump.

The volume of the tank shall be equal to at leasttwice that of the standing charge of fresh water.

Arrangements for maintaining an air pressure inthe tank shall be such as to ensure that where the standingcharge of fresh water in the tank has been used the pressurewill be not less than the working pressure of the sprinkler, plusthe pressure exerted by a head of water measured from thebottom of the tank to the highest sprinkler in the system. Suit-able means of replenishing the fresh water charge in the tankshall be provided.

3.4.3.3 The pressure tank shall comply with the re-quirements for pressure vessels as specified in Rules, Part 10 -Boilers, Heat Exchangers and Pressure Vessels.

3.4.4 Sprinklers

3.4.4.1 Sprinklers shall be placed in an overhead posi-tion and spaced in a suitable pattern to maintain an averageapplication rate of not less than 5 l/m2/min over the nominalarea covered by the sprinklers.

However, the Register may permit the use ofsprinklers providing such an alternative amount of watersuitably distributed as has been shown to be not less effective.

3.4.4.2 In accommodation and service spaces the sprin-klers shall come into operation within the temperature rangefrom 68oC to 79oC, except that in locations such as dryingrooms and galleys, where high ambient temperatures might beexpected, the operating temperature may be increased by notmore than 30oC above the maximum deckhead temperature.

3.4.4.3 The sprinklers shall be resistant to corrosion bymarine atmosphere.

3.4.5 Alarm and indication

3.4.5.1 Alarm and indication shall comply with the fol-lowing requirements:

.1 Each section of sprinklers shall includemeans for giving a visual and audiblealarm signal automatically at one or moreindicating units whenever any sprinklercomes into operation;

.2 Alarm systems shall be such as to indicateif any fault occurs in the system;

.3 Indicating units shall indicate in whichsection served by the system a fire has oc-curred and shall be centralized on thenavigation bridge or in the continuouslymanned central control station and, in ad-dition, visible and audible alarms from theunit shall also be placed in a position otherthan on the aforementioned spaces to in-sure that the indication of fire is immedi-ately received by the responsible memberof the crew.

.4 switches shall be provided at one of theindicating positions referred to in para-graph .3 above which will enable the alarmand the indicators for each section ofsprinklers to be tested see Part 12 - Elec-trical Equipment, 7.4.

3.4.5.2 A list or plan shall be displayed at each indicat-ing unit showing the spaces covered and the location of thezone in respect of each section of sprinklers. Suitable instruc-tions for testing and maintenance of the system shall be avail-able.

3.4.6 Piping

3.4.6.1 Sprinklers shall be grouped into separate sec-tions, each of which shall contain not more than 200 sprin-klers. In passenger ships any section of sprinklers shall notserve more than two decks and shall not be situated in morethan one main vertical zone or one watertight compartment.However, the Register may permit such a section of sprinklersto serve more than two decks or be situated in more than onemain vertical zone or one watertight compartment, if it is satis-fied that the protection of the ship against fire will not therebybe reduced.

3.4.6.2 Each section of sprinklers shall be capable ofbeing isolated by one stop valve only. The stop valve in eachsection shall be readily accessible in a location outside of theassociated section or in cabinets within stairway enclosures.The valve’s location shall be clearly and permanently indi-cated.Means shall be provided to prevent the operation of thestop valves by an unauthorized person.

A gauge indicating the pressure in the systemshall be provided at each section stop valve (see 3.4.1.7).

3.4.6.3 A test valve shall be provided for testing theautomatic alarm for each section of sprinklers by a dischargeof water equivalent to the operation of one sprinkler. The testvalve for each section shall be situated near the stop valve forthat section.

3.4.6.4 The arrangement of sea connection for thesprinkler pump shall be such as to prevent the sprinklers frombecoming clogged by impurities in the water.


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3.4.6.5 The diameter of the piping shall be such as toensure the operation of the sprinklers at the pressure and ap-plication rate specified in 3.4.2.2.

3.4.6.6 Means shall be provided in sprinkler piping toprevent the passage of seawater into the pressure tank.

3.4.7 Power supply

3.4.7.1 In passenger ships there shall be not less thantwo sources of power supply for the seawater pump, means ofreplenishing the air under pressure and automatic alarm anddetection system.

Where the sources of power for the pump areelectrical, these shall be a main generator and an emergencysource of power (see Rules, Part 12 - Electrical Equipment,19.1).

3.4.7.2 In cargo ships there shall be not less than twosources of power supply for the seawater pump, means of re-plenishing the air under pressure and automatic alarm and de-tection system. If the pump is electrically driven it shall beconnected to the main source of electrical power, which shallbe capable of being supplied by at least two generators.

3.4.7.3 One of the sources of power supply for themeans of replenishing the air under pressure and alarm anddetection system shall be an emergency source.

3.5 PRESSURE WATER-SPRAYINGSYSTEM

3.5.1 A fixed pressure water-spraying fire-extinguishing sistem in machinery spaces, cargo pump-rooms,ro-ro spaces and special category spaces shall be providedwith an independent power pump and shall have a connectionfrom the ship's fire main. At the connection a locable screw-down non-return valve shall be fitted which will prevent abackflow from the pressure water-spraying system to the firemain.

3.5.2 Water supply for pressure water-spraying sys-tems in spaces other than those referred to in 3.5.1 may befrom the ship's fire main only. At the connection lockablescrew-down valve shall be fitted. When the system is out ofoperation the valve shall be kept in closed position.

3.5.3 The pressure water-spraying systems shall beprovided with following:

.1 pressure gauge on the distribution valvesmanifold;

.2 clear marking on each distribution valveindicating the space served;

.3 instructions for maintenance and operationlocated close to the distribution valvesmanifold;

.4 sufficient number of drainage valves.

3.5.4 Spraying nozzles which may be grouped intoseparate sections shall be placed in an overhead position andprotected from physical damage.

In machinery spaces the nozzles shall be fittedabove machinery and equipment using oil fuel and havingpressure lubricating system and above bilges, tank tops and

other areas over which oil fuel is liable to spread and alsoabove other specific fire hazards in the machinery spaces.

The water-spraying system in machinery spacesshall be provided with spraying nozzles of an approved type.

3.5.5 The pressure water-spraying system in machin-ery spaces and cargo pump-rooms shall be kept charged at thenecessary pressure up to the section distribution valves, andthe pump supplying the water for the system shall be putautomatically into action by a pressure drop in the system.

3.5.6 The sea inlet to the pump shall wherever possi-ble be in the space containing the pump. The shut-off devicein the suction line shall be secured in the open position.

3.5.7 The independent power pump and/or water firemain system, as applicable, shall be capable of delivering aquantity of water, at the necessary pressure, sufficient for anaverage application rate of not less than:

.1 5 l/min/m2 of the area of all sections of thesystem, simultaneously in the largest pro-tected space, for machinery spaces, cargopump rooms and cargo spaces (see2.7.2.1.1.9);

.2 3.5 l/min/m2 of the area of the two largestadjacent sections, in the largest protectedspace, for spaces with a deck height notexceeding 2.5 metres and 5 l/min/m2 forspaces with a deck height exceeding 2.5metres, for special category spaces and ro-ro spaces. The length of sections shall beat least 20 m and the breadth shall be equalto the breadth of the ship or breadth be-tween longitudinal "A" class divisions;

.3 3.5 l/min/m2 of the area of the largest pro-tected space, for spaces other than thosereferred to in paragraph .1 and .2 above.

Where increased application rates are considerednecessary these shall be to the satisfaction of the Register.

3.5.8 The pressure water-spraying system fitted in ro-ro and vehicle spaces and special category spaces shall protectall parts of any deck and vehicle platform in such spaces.

3.5.9 The independent pump and its source of powersupply shall be installed outside the spaces to be protected.The pump controls and distribution valves shall be operatedfrom easily accessible positions close to the spaces to be pro-tected, and it shall not be possible for a fire in the spaces pro-tected to put the system out of action.

3.5.10 The pump may be driven by independent inter-nal combustion machinery but if it is dependent upon powerbeing supplied from the emergency generator, that generatorshall comply with the requirements specified in Rules, Part 12- Electrical Equipment, Chapter 9.

When the pump is driven by independent inter-nal combustion machinery it shall be so located that a fire inthe space protected will not affect the air supply to the ma-chinery.

3.5.11 Precautions shall be taken to prevent the nozzlesfrom becoming clogged by impurities in the water or corrosionof piping, nozzles, valves and pump.


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3.5.12 In ships of restricted service water supply for thepressure water-spraying system in open ro-ro spaces may befrom the ship’s fire main only.

At the fire main connection the lockable screw-down valve shall be provided and shall be locked in closed po-sition when the system is not in operation.

The capacity of the main fire pumps shall beadequately increased to provide for the simultaneous operationof the pressure water-spraying system and the two largest firehose nozzles provided on board.

3.5.13 For the guidelines for approval and installationof the alternative fixed water-based fire-extinguishing systemsfor use in special category and ro-ro spaces seeMSC.1/Circ.1272.

3.6 WATER-SCREEN SYSTEM

3.6.1 Water supply for the water-screen system re-quired in 2.2.2.6 shall be by an independent power pump.

The system shall have a connection from theship's fire main by means of a lockable screw-down non-return valve which will prevent a backflow from the water-screen system to the fire main.

3.6.2 Water supply for water-screen system for pro-tection of doors (see 2.1.3.11) may be from the ship's firemain. At the connection a lockable screw-down valve shall beprovided and shall be locked in a closed position when thesystem is not in operation.

3.6.3 The independent power pump and/or ship's wa-ter fire main system shall be capable of delivering a quantityof water, at the necessary pressure, sufficient for an applica-tion rate of not less than 70 l/min per linear metre of the screenlength.

3.6.4 The water screen for the protection of doorsshall be provided on the side of greater fire risk.

3.6.5 The system shall be controlled from an easilyaccessible position which shall not be readily cut off by a firein the protected space.

3.7 DRENCHING SYSTEM

3.7.1 Water supply for the drenching system intendedfor protection of superstructures and deckhouses in oil recov-ery ships (see 2.8.9) shall be by an independent power pump.

The system shall have a connection from theship's fire main by means of a lockable screw-down non-return valve which will prevent a backflow from the drenchingsystem to the fire main.

3.7.2 Drenching system in oil recovery ships shall becontrolled from the navigation bridge.

3.7.3 The independent power pump shall be capableof delivering quantity of water, at the neccessary pressure, suf-ficient for an average application rate of not less than:

.1 10 l/min/m2 of the area to be protected.

3.8 FOAM SYSTEMS


3.8.1.1 Generally, the following types of air-mechanicalfoam, depending on the foam expansion ratio, may be used asan extinguishing medium for foam fire-extinguishing systems:

.1 low-expansion foam (not exceeding);

.2 medium-expansion foam (between 50 and150);

.3 high-expansion foam (not exceeding).

3.8.1.2 A foam concentrate provided for the low-expansion and medium-foam systems shall be suitable for useboth with fresh water and sea water.

3.8.1.3 The capacity of the foam fire-extinguishing sys-tems and the quantity of foam concentrate available shall becalculated depending on the foam expansion ratio, the rate ofsupply of foam solution and foam generation time, as requiredfor each foam system (see Table 3.8.1.3-1). Additional foamconcentrate shall be provided for operation of two foam appli-cators for the same period of time required for the foam sys-tem, when the water fire main is an integral part of the deckfoam system.

Table 3.8.1.3-1

Rate of solution supply, with regard tofoam expansion ratio [l/min/m2]

Rated foamgeneration timeItem Space

12 100 1,000 [mm]1 2 3 4 5 6

1Cargo tanks and cargo tanksdeck area (see Table 3.1.2-1,item 4)

0.61

63

65 − 20/302

2 Cargo pump-rooms (see Table3.1.2-1, item 11)

− − 15 −3

3 Cargo spaces (see Table 3.1.2-1,item 5 and 6)

− − −4 45

4 Machinery spaces of category A(see Table 3.1.2-1, item 7 and 8) − − 15 −3

5 Operational deck area in oilrecovery ships (see 2.8.13) 65 − − 15

6 Helideck −6 −6 −6 −6


2009

Note to Table 3.8.1.3-1:1. The rate of supply of foam solution shall be not less than the greatest of the following:

.1 0.6 l/min/m2 of cargo tanks deck area, where cargo tanks deck area means the maximum breadth of the shipmultiplied by the total longitudinal extent of the cargo tank spaces;

.2 6 l/min/m2 of the horizontal section area of the single cargo tank having the largest such area; or

.3 3 l/min/m2 of the area protected by the largest monitor, such area being entirely forward of the monitor, butnot less than 1,250 l/min.

2. Sufficient foam concentrate shall be suplied to ensure at least 20 min of foam generation in tankers fitted with aninert gas installation or 30 min of foam generation in tankers not fitted with an inert gas installation when usingsolution rates prescribed in note .1, as appropriate, whichever is the greatest.

3. Sufficient foam concentrate shall be available to produce a volume of foam equal to five times the volume of thelargest space to be protected.

4. The rate of supply of foam solution shall be sufficient for filling the volume of the largest space to be protected innot more than 15 min.

5. For the largest sectional area of the largest space to be protected.6. See 2.1.13.

3.8.1.4 The foam concentrate storage tank shall be fit-ted with filling and draining arrangements, a liquid levelgauge, air pipe and a manhole for cleaning and inspection.

The tank shall be of sufficient capacity to con-tain the required amount of foam concentrate. A non-returnvalve shall be fitted on the pipe connecting foam concentratestorage tank and the foam solution piping.

3.8.1.5 The foam concentrate storage tank and thepumps may be located in the engine room. The controls forthe system shall be located as specified in 3.2.4.3.

3.8.1.6 Foam concentrate stored onboard shall be peri-odically controled. The tests as specified in MSC/Circ.582,MSC/Circ.582/Corr.1, MSC/Circ.670 and MSC/Circ.798, asappropriate, shall be performed and carried out at laboratoriesacceptable to the Register. A record of the age of the foamconcentrate and of subsequent controls shall be kept onboard.

3.8.2 Fixed deck foam system

3.8.2.1 The fixed deck foam system shall be capable ofdelivering foam to the entire cargo tanks deck area as well asinto any cargo tank the deck of which has been ruptured.

3.8.2.2 The foam expansion ratio (i.e. the ratio of thevolume of foam produced to the volume of the mixture ofwater and foam-making concentrate supplied) shall not gen-erally exceed 12 to 1.

Where systems essentially produce low-expansion foam, but an expansion ratio is slightly in excessof 12 to 1, the quantity of foam solution available shall becalculated as for 12 to 1 expansion ratio systems.

For an expansion ratio slightly less than 12 to 1the quantity of foam solution supplied shall be proportionallyincreased.

3.8.2.3 Foam from the fixed foam system shall be sup-plied by means of monitors and foam applicators (see Table5.1.2-1, item 2). On tankers of less than 4,000 tonnes dead-weight the Register may not require installation of monitorsbut only applicators.

3.8.2.4 At least 50% of the foam solution supply raterequired (see Table 3.8.1.3-1, notes 1.1 and 1.2) shall be de-livered from each monitor. However, where in compliancewith 3.8.2.3, foam applicators are installed instead of moni-

tors, at least 25% of the foam solution supply rate requiredshall be delivered from each applicator.

3.8.2.5 The number and position of monitors shall besuch as to comply with 3.8.2.1, 3.8.2.7 and 3.8.2.9.

The capacity of any monitor shall be at least 3l/min of foam solution per square metre of deck area pro-tected by that monitor, such area being entirely forward of themonitor. Such capacity shall be not less than 1,250 l/min.

3.8.2.6 Means shall be provided for alternate supply ofwater and foam by each monitor and for that purpose allmonitors shall have a connection from the ship's fire main byway of a screw-down non-return valve at the connectionwhich will prevent a backflow from the foam system to thefire main.

3.8.2.7 The distance from the monitor to the farthestextremity of the protected area forward of that monitor shallbe not more than 75% of the monitor throw in still air condi-tions.

3.8.2.8 On easily accessible positions isolating valvesshall be provided in the foam main at the poop front and im-mediately forward of any monitor position. The valves shallbe provided with name plates showing that the valve must bepermanently open under normal service conditions.

Foam hydrants shall be fitted aft of the isolationvalves. The number and disposition of the foam hydrantsshall be such to ensure that the foam from at least two appli-cators can be simultaneously directed to any part of the cargotanks deck area.

3.8.2.9 A monitor and hydrant for a foam applicatorshall be situated both port and starboard at the front of thepoop or accommodation spaces facing the cargo tanks deck.On tankers of less than 4,000 tonnes deadweight, a hydrantfor a foam applicator shall be situated both port and starboardat the front of the poop or accommodation spaces facing thecargo tanks deck..

The foam branch pipes shall lead from the foamcontroll station aft of the isolating valve.

Port and starboard monitors may be located inthe cargo area provided they are aft of cargo tanks and thatthey protect below and aft of each other.

3.8.2.10 When medium-expansion ratio foam is em-ployed, the number and capacity of monitors shall be to thesatisfaction of the Register.


2009

3.8.2.11 Operation of the deck foam system at its re-quired capacity shall permit the simultaneous use of the waterfire main system with the minimum required number of jetsof water at the required pressure (see 3.3.1.2) over the fulllength of the ship on deck, in accommodation and servicespaces, control stations and machinery spaces.

3.8.2.12 For cargoes (≤ 60oC) for which a regular fixeddeck foam system complying with this section is not effective(see MSC/Circ. 553) the following additional measures shallbe required:

.1 the foam shall be of an alcohol resistanttype;

.2 the capacity and application rates of thefixed deck foam system shall complywith requirements specified in Rules, Part27 – Chemical Tankers, 11.3, except thatlower application rates may be acceptedbased on performance test;

.3 foam concentrate quantity sufficient for20 min of foam generation may be ac-cepted for tankers fitted with inert gassystem.

3.8.3 Fixed high-expansion foam system

3.8.3.1 Any required fixed high-expansion foam sys-tem in machinery spaces shall be capable of rapidly dis-charging through fixed discharge outlets a quantity of foam ata rate as specified in Table 3.8.1.3-1. The quantity of foamconcentrate available shall be as specified in note 3 to theabove mentioned table.

3.8.3.2 The Register may permit alternative arrange-ments and discharge rates provided that it is satisfied thatequivalent protection is achieved.

3.8.3.3 Supply ducts for delivering foam, air intakes tothe foam generator and the number of foam-producing units(see 3.8.3.6) shall, in the opinion of the Register, be such asto provide effective foam production and distribution.

3.8.3.4 The arrangement of the foam delivery ductingshall be such that a fire in the protected space will not effectthe foam generating equipment.

If the foam-generators are located adjacent tothe protected space, foam delivery ducts shall be installed toallow at least 450 mm of separation between the generatorsand the protected space. The foam delivery ducts shall beconstructed of steel having a thickness of not less than 5 mm.In addition, stainless steel dampers (single or multi-bladed)with a thickness of not less than 3 mm shall be installed at theopenings in the boundary bulkheads or decks between thefoam generators and the protected space. The dampers shallbe automatically operated (electrically, pneumatically or hy-draulically) by means of remote control of the foam generatorrelated to them.

3.8.3.5 Where fixed high-expansion foam systems usefresh water to produce foam a service tank containing suffi-cient quantity of fresh water to produce volume of foamequal to the volume of the largest space to be protected shallbe located in the foam control station. The rest of fresh watermay be taken from the ship's stores.

The pump and its controls shall be installedoutside the space to be protected and shall ensure continuousoperation of the system as specified in Table 3.8.1.3-1.

3.8.3.6 . The foam generator, its sources of power sup-ply, foam concentrate and means of controlling the system(foam producing units) shall be readily accessible and simpleto operate and shall be grouped in as few locations as possi-ble at positions (foam control stations) not likely to be cut offby fire in the protected space.

3.8.3.7 Means shall be provided for testing the foamgenerating equipment in operation and to discharge the foamto the open deck.

Discharge outlet the branch ducting leading tothe open deck shall be kept closed and locked when not inuse.

3.8.3.8 In spaces protected by a fixed high-expansionfoam system provision shall be made in the upper part of thespace, opposite to the foam discharge outlets, for ventingoutlets operating during foam supply.

Generally, such outlets shall be arranged eitherbeyond the position 1 and 2 as specified in Rules, Part 3 -Hull Equipment, 7.1.2 or they shall comply with 7.7 of thesame Part of the Rules.

3.8.4 Fixed low-expansion foam system inmachinery spaces

3.8.4.1 Where in any machinery space a fixed low-expansion foam fire-extinguishing system is fitted, in addi-tion to the fixed fire-extinguishing system required in Table3.1.2-1, such system shall comply with the following:

.1 the system shall be capable of generatingfoam suitable for extinguishing oil fires;

.2 the expansion ratio of the foam shall notexceed 12 to 1;

.3 the system shall be provided with a per-manent system of piping and controlvalves or cocks for the effective distribu-tion of the foam solution to suitable dis-charge outlets. The foam shall be effec-tively directed by fixed sprayers ontomain fire hazard areas in the protectedspaces. The means of effective distribu-tion of foam shall be proven acceptable tothe Register through calculation or bytesting;

.4 the system shall be capable of dischargingin not more than 5 min a quantity of foamsufficient to cover to a depth of 150 mmthe largest single area over which oil fuelis liable to spread;

.5 the means of control of any such systemshall be readily accessible and simple tooperate and shall be grouped together in alocation not likely to be cut off by a firein the protected space.


2009

3.9 CARBON DIOXIDE SYSTEMS


3.9.1.1 The quantity of carbon dioxide available shall,unless expressly provided otherwise, be not less than that cal-culated by the formula:

G = 1.79 ⋅ V ⋅ ϕ , [kg]

where:V = the rated volume of the largest pro-

tected space, [m3];ϕ = factor equal to:

0.3 for cargo spaces (see 1.2.2.7) andother spaces, other than those indi-cated below;

0.35 for machinery spaces and cargopump-rooms, including the casing; or

0.40 for machinery spaces and cargopump-rooms, the volume to excludethat part of the casing above the levelat which the horizontal area of thecasing is 40% or less of the horizontalarea of the space concerned takenmidway between the tank top and thelowest part of the casing;

0.45 for ro-ro and vehicle spaces (see1.2.2.34 and 1.2.2.44), other closedcargo spaces intended for the carriageof motor vehicles with fuel in theirtanks for their own propulsion andcargo pump rooms on chemical tank-ers.

For machinery spaces the larger of the value Gobtained, shall be adopted.

In ships of less than 2,000 gross tonnage, otherthan passenger ships, factors 0.35 and 0.4 may be reduced to0.3 and 0.35 , respectively, provided that, where two or moremachinery spaces are not entirely separate, they shall be con-sidered as forming one space.

For the purpose of this regulation the volume offree carbon dioxide shall be calculated at 0.56 m3/kg.

3.9.1.2 In containerships, for container cargo spacesfitted with partially weathertight hatchway covers the quan-tity of carbon dioxide available for the cargo space shall beincreased as specified in MSC/Circ.1087.

3.9.1.3 Except as otherwise permitted by 3.9.4, cylin-ders for the storage of carbon dioxide shall be located outsideof the protected spaces in accordance with 3.2.4.

3.9.1.4 The sum of the cross-sectional areas of allbranch lines and the cross-sectional area of the main mani-fold, conveying the carbon dioxide, shall be not more thanthe sum of the free areas of all cylinder valves simultaneouslyopening for the largest protected space (for high - pressuresystem) and/or not more than the free area of the tank dis-charge valve (for low-pressure system).

3.9.1.5 The cross-sectional area of each branch line forindividual protected spaces shall be not more than the sum ofthe free areas of all cylinder valves simultaneously openingfor the space concerned (for high-pressure system), or not

more than the free area of the tank discharge valve (for low-pressure system). The sum of the cross - sectional areas of thedistribution lines shall be not more than the cross-sectionalarea of the branch supply pipe.

3.9.1.6 The piping system shall be so arranged that thecarbon dioxide can be discharged into the protected spacewithin:

.1 2 min - for machinery spaces and cargopump-rooms, for not less than 85% of therated quantity;

.2 10 min - for ro-ro and vehicle spaces andother closed cargo spaces intended for thecarriage of motor vehicles with fuel intheir tanks for their own propulsion, fornot less than 67% of the rated quantity;

.3 For cargo spaces and other spaces, ex-cluding those indicated above, carbon di-oxide cylinder valves may be opened in-dividually.

The requirements for carbon dioxide dischargetime shall be demonstrated by suitable calculations.

3.9.1.7 The maximum quantity of carbon dioxidewhich may be carried through any pipeline shall be as givenin Table 3.9.1.7-1. Deviations from the table may be acceptedby the Register when documented by calculations in accor-dance with the recognized standard (NFPA 12, ISO/DIS 6183or equivalent).

3.9.1.8 For cargo spaces, other than spaces referred toin Table 3.9.1.7-1, inside diameter of distribution piping shallbe not less than 19 mm, except for pipes leading to the indi-vidual discharge nozzles which may be of 13 mm inside di-ameter.

Table 3.9.1.7-1Dimensions of the carbon dioxide piping for the "quick"

discharge

Pipe size, [mm] CO2 quantity, [kg]

ND

Machinery spacesand cargo

pump-rooms

Ro-ro spaces, andother cargo spaces

intended for thecarriage of motor

vehicles15 45 22520 100 50025 135 67532 275 1,37540 450 2,25050 1,100 5,50065 1,500 7,50080 2,000 10,00090 3,250 16,250

100 4,750 23,750110 6,810 34,050125 9,500 47,500150 15,250 76,250

3.9.1.9 The wall thickness of the carbon dioxide pipingshall be as required in Rules, Part 8 - Piping, 1.3.4, providedthe design pressure comply with 3.9.2.1 or 3.9.3.1, and shallbe not less than that as given in Table 1.3.4.3.


2009

3.9.1.10 A connection for the compressed air supply,shall be provided on the carbon dioxide main manifold forthe purpose of blowing-through and testing of the system.The connection shall be closed with a threaded plug (see3.2.2.1.5).

3.9.1.11 Where a sample extraction smoke detectionsystem using the carbon dioxide distribution piping is pro-vided, the connection of the system shall be made close to thecarbon dioxide control valves and means shall be providedfor preventing the carbon dioxide from being discharged tospaces other than protected spaces.

3.9.1.12 The number of discharge nozzles shall be suffi-cient to provide an even distribution of carbon dioxide gasthroughout the protected space.

3.8.1.13 In cargo spaces each hold and tweendeck spacewith a gross volume not exceeding 800 m3 shall be fitted withnot less than 2 discharge nozzles.

Holds and tweendeck spaces exceeding 800 m3

shall be fitted with not less than 4 discharge nozzles.

3.9.1.14 Carbon dioxide discharge nozzles in the pro-tected space shall be placed in an overhead position.

In machinery spaces of category A, where thefloor plates are provided, a number of discharge nozzles shallbe positioned below the floor plates so as to ensure dischargeof about 10 to 15% quantity of carbon dioxide.

3.9.1.15 The total free area of the discharge nozzles inthe protected spaces shall be not greater than 90% of the sumof cross-sectional areas of the distribution pipes.

The total free area of the discharge nozzles, inmachinery spaces, cargo pump-rooms and ro-ro spaces shallbe not greater than 85% and not less than 50% of the totalsectional area of the carbon dioxide cylinder valves intendedfor the respective room.

3.9.1.16 Perforated pipes may be used instead of dis-charge nozzles in silencers, exhaust gas uptakes and flue gasuptakes. The total area of pipe perforations shall not exceed90% of pipe cross-sectional area and the diameter of eachhole shall be not less 4 mm.

3.9.1.17 The piping system shall be protected againstexternal corrosion. Distribution lines serving spaces otherthan machinery spaces shall be galvanised internally.

3.9.1.18 For normally manned spaces two separate con-trols shall be provided for releasing carbon dioxide into aprotected space and to ensure the activation of the alarm (see4.3). One control shall be used for opening the valve of thepiping which conveys the gas into the protected space.A second control shall be used to discharge the gas from itsstorage containers.

Positive means shall be provided so that suchcontrols can only be operated in that order.

The two controls shall be located inside a re-lease box clearly identified for the particular space. If the boxcontaining the controls is to be locked, a key to the box shallbe in a break-glass type enclosure conspicuously located ad-jacent to the box.

3.9.1.19 A notice shall be exhibited at the controls forthe cargo pump-rooms in tankers ≤ 60°C stating that, due to

the electrostatic ignition hazard, the system shall be used onlyfor fire extinguishing and not for inerting purposes.

3.9.1.20 Signs giving the following information shall bepermanently displayed in the carbon dioxide storage roomand to the valve groups for the flooding of individual spaceswith carbon dioxide:

.1 name of space and gross volume in [m3];

.2 quantity of carbon dioxide for the space;

.3 number of nozzles in the space;

.4 flooding time in minutes (i.e. the time theflooding valves must remain open).

3.9.1.21 The remote controls for releasing carbon diox-ide into the machinery spaces shall be provided and locatednear the exit outside the protected space in the cases wherethe carbon dioxide storage room is not readily accessible.

3.9.2 High-pressure system

3.9.2.1 The required quantity of carbon dioxide shallbe stored in high-pressure cylinders, the filling ratio of which(quantity of carbon dioxide per 1 l of cylinder capacity)shallbe not more than 0.675 kg/l for the cylinder design pressure12.5 MPa and over, and not more than 0.75 kg/l for the cyl-inder design pressure 15 MPa and over. When filling cylin-ders deviation of not more than ± 0.5 kg from the rated quan-tity per cylinder is permitted. For local units (see 3.9.4) thefilling ratio shall be reduced for 0.075 kg/l with regard to theabove value.

3.9.2.2 The cylinders shall be placed vertically in rowson the pads which may be made of wood or similar materialand shall be accessible for inspection and checking of theamount of carbon dioxide contained therein. Each cylindershall be marked with its ordinal number.

Pilot cylinders shall be located in the carbon di-oxide storrage room together with other cylinders and shallbe painted conspicuously.

3.9.2.3 For the connection between the bottle-valve andthe manifold for the CO2 battery, normally, the flexible highpressure hose of approved type may be used. Other types ofconnections which are considered equivalent (stainless steelpipes) may be accepted.

A non-return valve shall be provided on theconnecting pipe close to the manifold.

3.9.2.4 A pressure gauge graduated to a value at least 1MPa in excess of the hydraulic test pressure of the carbon di-oxide cylinders shall be fitted to the manifold. The value ofthe pressure gauge scale division shall not exceed 0.5 MPa.

3.9.2.5 Means shall be provided in the carbon dioxideroom for weighing the cylinders or measuring the liquid leveltherein. Also a thermometer shall be fitted for checking theroom temperature.

3.9.2.6 Carbon dioxide cylinder valves shall complywith the following:

.1 they shall have safety disc which:.1.1 breaks at a pressure rise in the cyl-

inder up to (1.3 ± 0.1) p, [MPa],where "p" is design pressure of thecylinder.


2009

For valves with slotted discs, whichare additionally fitted with safetydisc, the breaking pressure of aslotted disc shall be at least 1 MPahigher than the safety disc breakingpressure;

.1.2 has an indication for safety disc op-eration;

.2 they shall be provided with control leverwhich enables the full opening of thevalve at the turn of not more than 90o andpermits the valves to be opened individu-ally or by groups.

.3 they shall be fitted with scarfed pipe ter-minating at 5 to 15 mm from the bottomof the cylinder. Inside diameter of thatpipe, as well as of the pipe connecting thecylinder valve with the manifold, shall benot less than 10 mm;

.4 where the pilot cylinder valves are not ofthe same type as the valves of other car-bon dioxide cylinders, they shall bepainted conspicuously and provided withcorresponding name plate.

3.9.2.7 Gas expelled through the ruptured safety discshall be discharged into:

.1 the atmosphere, outside the carbon diox-ide control room through a separate pipeprovided with an audible alarm at theoutlet; or

.2 the main distributing manifold, whichshall be provided with:

.2.1 two branches, one of which openended and fitted with shut-off valve,and the other provided with safetyrelief valve with setting of not lessthan 10 MPa;

.2.2 means for giving a high gas pres-sure alarm at the position where itcan be received by a responsiblemember of the crew. In this casecylinder valves need not be pro-vided with an indication for safetydisc operation.

3.9.2.8 When the system has been installed, pressure-tested and inspected the following shall be carried out:

.1 a test of the free air flow in all pipes andnozzles; and

.2 a functional test of the alarm equipment.

3.9.3 Low-pressure system

3.9.3.1 The required quantity of liquid carbon dioxideshall be stored in vessel under the working pressure in therange of 1.8 to 2.2 MPa. The normal liquid charge in the ves-sel shall be limited to provide sufficient vapour space to al-low the expansion of the liquid under the maximum storagetemperatures that can be obtained corresponding to the set-ting of the pressure relief valves but is not to exceed 95% ofthe volumetric capacity of the vessel.

3.9.3.2 The design pressure of the vessel shall be notless than the relief valve setting. Besides,the vessel shall beprovided with following accessories and instruments:

.1 pressure gauge;

.2 high pressure alarm, not more than settingof the relief valve;

.3 low pressure alarm, not less than 1.8MPa:

.4 branch pipe with stop valve for filling thevessel;

.5 discharge pipe;

.6 liquid carbon dioxide level indicator, fit-ted on the vessel;

.7 two safety relief valves arranged so thateither valve can be shut-off while theother is connected to the vessel.

The setting of the relief valves shall be not lessthan 1.1p (p - working pressure in the vessel).

The capacity of each valve shall be such thatthe vapours generated under fire condition can be dischargedwith a pressure rise not more than 20% above the settingpressure. The discharge from the safety valves shall be led tothe open.

3.9.3.3 The vessel and outgoing pipes permanentlyfilled with carbon dioxide shall have thermal insulation pre-venting the operation of the safety valve in 24 hours after de-energizing the plant, at ambient temperature of 45oC and aninitial pressure equal to the starting pressure of the refriger-ating unit.The insulating materials and their lining shall be tothe satisfaction of Register having in mind, in particular, theirfire resistance and mechanical properties, as well as protec-tion against penetration of water vapours.

3.9.3.4 The vessel shall be serviced by two automatedcompletely independent refrigerating units solely intended forthis purpose, each comprising a compressor and the relevantprime mover, evaporator and condenser.

3.9.3.5 The refrigerating plant shall comply with therelevant requirements specified in Rules, Part 11 - Refriger-ating Plant.

The refrigerating capacity and the automaticcontrol of each unit shall be such as to maintain the requiredtemperature under conditions of continuous operation during24 hours at the sea temperature up to 32 oC and ambient airtemperature up to 45 oC.

3.9.3.6 In the event of failure of either of the refriger-ating units the other shall be actuated automatically. Provi-sion shall be made for local manual control of the refrigerat-ing plant.

3.9.3.7 Each electric refrigerating unit shall be suppliedfrom the main switchboard busbars by a separate feeder andbreaker.

3.9.3.8 Cooling water supply to the refrigerating plant(where required) shall be provided from at least two circu-lating pumps one of which being used as a stand-by. Thestand-by pump may be a pump used for other services as longas its use for cooling would not interfere with any other es-sential service of the ship. Cooling water shall be taken fromnot less than two sea connections, preferably one port andone starboard.


2009

3.9.3.9 Safety relief devices shall be provided in eachsection of pipe that may be isolated by block valves and inwhich there could be a build-up of pressure in excess of thedesign pressure of any of the components.

3.9.3.10 The piping system shall be designed in such away that the carbon dioxide flows through in liquid phase upto the discharge nozzles. To this end the pressure at the noz-zles shall be not less than 1 MPa.

3.9.3.11 Audible and visual alarms shall be provided ina central control station or in the control room for propulsionmachinery where a central control station is not provided andshall be activated when:

.1 the pressure in the vessel(s) reaches thelow and high values according to 3.9.3.2;

.2 any one of the refrigerating units fails tooperate; or

.3 the lowest permissible level of the liquidin the vessels is reached.

3.9.3.12 The release of carbon dioxide shall be initiatedmanually.

If the system serves more than one space,means for control of discharge quantities of carbon dioxideshall be provided, e.g. automatic timer or accurate level indi-cators located at the control position.

If a device is provided which automaticallyregulates the discharge of the rated quantity of carbon dioxideinto the protected spaces, it shall be also possible to regulatethe discharge manually.

3.9.4 Local carbon dioxide units

3.9.4.1 Where necessary the Register may permit a lo-cal carbon dioxide units intended for fire extinguishing ofcrank cases and silencers of internal combustion propulsionmachinery, flue gas uptakes of boilers and similar, on condi-tion that an evidence by calculation is provided, proving thatthe concentration of the free carbon dioxide gas (in case ofleakages at all cilinders provided) relative to the net volumeof the engine room does not exceed 4%.

3.10 INERT GAS SYSTEMS


3.10.1.1 The inert gas system (see Table 3.1.2-1, note 3)shall be designed, constructed and tested to the satisfaction ofthe Register. It shall be designed (see MSC/Circ.677 asamended by MSC/Circ.1009, and MSC/Circ.731) and oper-ated as to render and maintain the atmosphere of the cargotanks non-flammable at all times, except when such tanks arerequired to be gas-free.

In the event that the inert gas system is unableto meet the operational requirement set out above and it hasbeen assessed that it is impracticable to effect a repair, thancargo discharge, deballasting and necessary tank cleaningshall only be resumed when the “emergency conditions” (seeMSC/Circ.485 and MSC/Circ.353 as amended byMSC/Circ.387) on inert gas systems are complied with.

3.10.1.2 The system shall be capable of:

.1 inerting empty cargo tanks by reducingthe oxygen content of the atmosphere ineach tank to a level at which combustioncannot be supported;

.2 maintaining the atmosphere in any part ofany cargo tank with an oxygen contentnot exceeding 8% by volume and at apositive pressure at all times in port andat sea except when it is necessary for sucha tank to be gas-free;

.3 eliminating the need for air to enter a tankduring normal operations except when itis necessary for such a tank to be gas-free;

.4 purging empty cargo tanks of a hydrocar-bon gas, so that subsequent gas-freeingoperations will at no time create a flam-mable atmosphere within the tank.

3.10.1.3 Detailed instruction manuals shall be providedon board, covering the operations, safety and maintenancerequirements and occupational health hazards relevant to theinert gas system and its application to the cargo tank system(see MSC/Circ.387). The manuals shall include guidance onprocedures to be followed in the event of a fault or failure ofthe inert gas system.

3.10.2 Supply of inert gas

3.10.2.1 The inert gas supply may be treated flue gasfrom main or auxiliary boilers. The Register may accept sys-tems using flue gases from one or more separate oil fired gasgenerators or other sources or any combination thereof, pro-vided that an equivalent standard of efficiency and safety isachieved. Each source of flue gas shall be provided with anautomatic combustion control to ensure the quality of the in-ert gas supplied, as specified in 3.10.2.3. Systems usingstored carbon dioxide shall not be permitted unless the Reg-ister is satisfied that the risk of ignition from generation ofstatic electricity by the system itself is minimized.

3.10.2.2 The system shall be capable of delivering inertgas to the cargo tanks at a rate of at least 125% of the maxi-mum rate of discharge capacity of the ship’s cargo pumpsexpressed as a volume.

3.10.2.3 The system shall be capable of delivering inertgas with an oxygen content of not more than 5% by volumein the inert gas supply main to the cargo tanks at any requiredrate of flow and under all service conditions. The temperatureof the inert gas supplied to the protected spaces shall not ex-ceed 65oC.

3.10.3 The protection of cargo tanks againstoverpressure/underpressure

3.10.3.1 The inert gas system shall be so designed thatthe maximum pressure which it can exert on any cargo tankwill not exceed the test pressure of any cargo tank. In no caseshall this pressure exceed 24 kPa.

3.10.3.2 One or more pressure/vacuum-breaking devicesshall be provided to prevent the cargo tanks from being sub-ject to overpressure and/or underpressure.


2009

Such devices shall be installed on the inert gasmain unless they are installed in the venting system requiredin Rules, Part 8 – Piping, 5.2, or on individual cargo tanks.

Setting, location and design of these devicesshall comply with Rules, Part 8 – Piping, 5.2.

3.10.3.3 A positive pressure not exceeding 21 kPa shallbe maintained in the cargo tanks when they are filled or beingfilled with inert gas under all normal working conditions.

3.10.3.4 Means shall be provided to protect cargo tanksagainst the effect of overpressure or vacuum caused by ther-mal variations when the cargo tanks are isolated from the in-ert gas main.

3.10.4 Equipment

3.10.4.1 A flue gas scrubber shall be fitted which willeffectively cool the volume of gas specified in 3.10.2 and re-move solids and sulphur combustion products. The coolingwater arrangements shall be such that an adequate supply ofwater will always be available without interfering with anyessential services on the ship. Provision shall also be madefor an alternative supply of cooling water.

3.10.4.2 The flue gas scrubber shall be so designed thatthe capacity of the system will not drop for more than 3% andthe gas temperature at the outlet will not rise more than 3 oCas against the design values, under all normal conditions ofheel and trim of the ship.

3.10.4.3 Provision shall be made in the scrubber housingfor inspection holes and sight glasses made of impact-andheat-resistant material for inspection of operation and main-tenance.

3.10.4.4 Filters or equivalent devices shall be fitted tominimize the amount of water carried over to the inert gasblowers.

3.10.4.5 At least two blowers shall be fitted which to-gether shall be capable of delivering to the cargo tanks atleast the volume of gas required in 3.10.2. The single blowercapacity shall be not less than 1/3 of the total capacity re-quired. Provision shall be made in the blower casing formaintenance openings.

3.10.4.6 Suitable shutoff arrangements shall be providedon the suction and discharge connections of each blower.

3.10.4.7 The parts of the scrubbers, blowers, etc., whichmay be subjected to corrosive action of the gases and/or liq-uids shall be either constructed of corrosion resistant materialor lined with rubber, glass fibre epoxy resin or other equiva-lent coating material.

3.10.4.8 If the blowers are to be used for gas-freeing ofcargo tanks, their air inlets shall be provided with blankingarrangements and connection for air sampling.

3.10.4.9 The flue gas scrubber and blowers shall be lo-cated aft of all cargo tanks, cargo pump-rooms and coffer-dams separating these spaces from machinery spaces of cate-gory A.

3.10.4.10 Special consideration shall be given to the de-sign and location of scrubber and blowers with relevant pip-

ing and fittings in order to prevent flue gas leakages into en-closed spaces.

3.10.5 Non-return devices

3.10.5.1 At least two non-return devices one of whichshall be a deck water seal, shall be fitted in the inert gas sup-ply main in order to prevent the backflow of hydrocarbon va-pours and liquids to the machinery space uptakes or to anygas-safe spaces under all normal conditions of trim, list andmotion of the ship.

These devices shall be located in the cargo areaon deck, between the automatic valve required in 3.10.6.5and the aftermost connection to any cargo tank or cargopipeline.

3.10.5.2 The water seal shall be capable of being sup-plied by two separate pumps, each of which shall be capableof maintaining an adequate supply at all times.

For semi-dry and dry water seals automaticstart of the water pumps and feeding/filling of the water sealshall be ensured in the case of inert gas supply failure. Adrain pipe of the deck water seal shall not pass through ma-chinery spaces. Discharge pipes shall be led directly over-board.

3.10.5.3 Provision shall be made to ensure that the waterseal is protected against freezing, in such a way that the in-tegrity of seal is not impaired by overheating.

3.10.5.4 A water loop or other approved arrangementshall also be fitted to each associated water supply and drainpipe and each venting or pressure-sensing pipe leading togas-safe spaces. Means shall be provided to prevent suchloops from being emptied by vacuum.

3.10.5.5 The deck water seal and loop arrangementsshall be capable of preventing backflow of hydrocarbon va-pours at a pressure equal to the test pressure of the cargotanks.

3.10.5.6 In respect of requirements in 3.10.7.6.6 theRegister shall be satisfied as to the maintenance of an ade-quate reserve of water at all times and the integrity of the ar-rangements to permit the automatic formation of the waterseal when the gas flow ceases. The audible and visual alarmon the low level of water in the water seal shall operate whenthe inert gas is not being supplied.

3.10.5.7 Provision shall be made in the deck water sealfor sight holes and glasses for monitoring the water level andmaintenance.

3.10.5.8 The second device (see 3.10.5.1) shall be a non-return valve or equivalent, provided with positive means ofclosure and fitted forward of the deck water seal. As an alter-native to positive means of closure, an additional valve hav-ing such means of closure may be provided forward of thenon-return valve to isolate the deck water seal from the inertgas main to the cargo tanks.

3.10.5.9 Materials used in construction of non-returndevices shall be resistant to corrosive action of the gasesand/or liquids (see 3.10.4.7).

3.10.5.10 As an additional safeguard against the possibleleakage of hydrocarbon vapours and liquids back from the


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deck main, means shall be provide to permit this section ofthe line between the valve having positive means of closurereferred to in 3.10.5.8 and the valve referred to in 3.10.6.5 tobe vented in a safe manner when the first of these valves isclosed.

3.10.6 Piping

3.10.6.1 The inert gas main may be divided into two ormore branches forward of the non-return devices required in3.10.5.1.

3.10.6.2 The inert gas supply main shall be fitted withbranch piping leading to each cargo tank. Branch piping forinert gas shall be fitted with either stop valves or equivalentmeans of control for isolating each tank. Where stop valvesare fitted, they shall be provided with locking arrangements,which shall be under the control of a responsible ship’s offi-cer. The control system shall provide positive indication ofthe operational status of such valves.

3.10.6.3 In combination carriers, the arrangement toisolate the slop tanks containing oil or oil residues from othertanks shall consist of blank flanges which shall remain in po-sition at all times when cargoes other than oil are being car-ried except as provided for in the relevant section of the Re-vised guidelines for inert gas systems (see MSC/Circ.353, asamended by MSC/Circ.387).

3.10.6.4 The outlets of the inert gas inlet pipes in cargotanks shall be located in the upper part of the tank.

3.10.6.5 A gas regulating valve shall be fitted in the in-ert gas supply main.

This valve shall be automatically controlled toclose as required in 3.10.8.6 and 3.10.8.7. It shall also be ca-pable of automatically regulating the flow of inert gas to thecargo tanks unless means are provided to automatically con-trol the speed of the inert gas blowers.

The gas regulating valve shall be located at theforward bulkhead of the forwardmost gas-safe space throughwhich the inert gas supply main passes.

3.10.6.6 Arrangements shall be provided to enable theinert gas main to be connected to an external supply of inertgas. The arrangements shall consist of a 250 mm nominalpipe size bolted flange, isolated from the inert gas main by avalve and located forward of the non-return valve referred toin 3.10.5.8. The design of the flange shall conform to the ap-propriate class in the standards adopted for the design ofother external connections in the ship’s cargo piping system.

3.10.6.7 If a connection is fitted between the inert gassupply main and the cargo piping system, arrangements shallbe made to ensure an effective isolation having regard to thelarge pressure difference which may exist between the sys-tems.

This shall consist either of two shut-off valvesand arrangement to vent the space between valves in a safemanner, or an arrangement consisting of a spool piece withassociated blanks.

3.10.6.8 The valve separating the inert gas supply mainfrom the cargo main, and which is located on the cargo mainside, shall be of a non-return type with a positive means ofclosure.

3.10.6.9 Piping systems shall be so designed as to pre-vent the accumulation of cargo or water in the pipelines un-der all normal conditions.

3.10.6.10 As an additional safeguard against the possibleleakage of hydrocarbon liquids or vapours back from thedeck main, means shall be provided to permit this section ofthe line between the valve having positive means of closurereferred to in 3.10.5.8 and the valve referred to in 3.10.6.5 tobe vented in a safe manner when the first of these valves isclosed.

3.10.6.11 The inside diameter of the pipes shall be suchas to ensure the gas flow rate in any section of the piping tobe not more than 40 m/s.

3.10.6.12 The piping from the gas scrubber to the blowersand recirculation lines as well as drain pipe of gas scrubbingand cooling system shall be resistant to corrosive action ofthe gases and/or liquids (see 3.10.4.7).

3.10.6.13 Suitable arrangements shall be provided afterthe flanges refered to in 3.10.6.3 to enable the inert gas mainto be connected to an external supply of inert gas.

3.10.6.14 The inert gas supply main may be used for theventing of cargo tanks during loading and ballasting.

3.10.7 Control and alarms

3.10.7.1 Means shall be provided for continuously indi-cating the temperature and pressure of the inert gas at the dis-charge side of the gas blowers, whenever the gas blowers areoperating.

3.10.7.2 Instrumentation shall be fitted for continuouslyindicating and permanently recording, when the inert gas isbeing supplied:

.1 the pressure of the inert gas supply mainsforward of the nonreturn devices requiredin 3.10.5.1 and

.2 the oxygent content of the inert gas sup-ply mains on the discharge side of the gasblowers.

These devices shall be placed in the cargo con-trol room, where provided. Where no cargo control room isprovided, they shall be placed in a position easily accessibleto the officer in charge of cargo operations.

3.10.7.3 In addition to the instruments referred to in3.10.7.2 meters shall be fitted:

.1 in the navigating bridge to indicate at alltimes the pressure referred to in3.10.7.2.1 and the pressure in the sloptanks of combination carriers, wheneverthose tanks are isolated from the inert gassupply main; and

.2 in the machinery control room or in themachinery space to indicate the oxygencontent referred to in 3.10.7.2.2.

3.10.7.4 Suitable arrangement shall be made on eachcargo tank such that the condition of the tank atmosphere canbe determined using adequate portable instruments (see Table5.2.1-1, item 15).


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3.10.7.5 Suitable means shall be provided for the zeroand span calibration of both fixed and portable gas concen-tration measurement instruments, referred to in 3.10.7.2.2,and 3.10.7.4.

3.10.7.6 For inert gas systems of both the flue gas typeand the inert gas generator type, audible and visual alarmsshall be provided to indicate:

.1 low water pressure or low water flow rateto the flue gas scrubber;

.2 high gas temperature as referred to in3.10.2.3 and 3.10.7.1;

.3 high water level in the flue gas scrubber;

.4 oxygen content in excess of 8% by vol-ume as referred to in 3.10.7.2.2;

.5 failure of the power supply to the auto-matic control system for the gas regulat-ing valve and to the indicating devices asreferred to in 3.10.6.5 and 3.10.7.2;

.6 low water level in the water seal;

.7 gas pressure less than 1 kPa as referred toin 3.10.7.2.1. The alarm arrangementshall be such as to ensure that the pres-sure in slop tanks in combination carrierscan be monitored at all times;

.8 failure of the inert gas blowers; and

.9 high gas pressure, 10 kPa and upwards, asreferred to in 3.10.7.2.1.

3.10.7.7 The alarms required in 3.10.7.6.4, 3.10.7.6.5and 3.10.7.6.7 shall be fitted in the machinery space andcargo control room, where provided, but in each case in sucha position that they are immediately received by responsiblemembers of the crew.

3.10.7.8 An additional audible alarm system independ-ent of that required in 3.10.7.6.7 or automatic shut-down ofcargo pumps shall be provided to operate on predeterminedlimits of low pressure in the inert gas main being reached (0,5kPa).

3.9.7.9 The audible and visual alarm on the low levelof water in the water seal of semi-dry and dry type shall op-erate when the inert gas is not being supplied.

3.10.8 Systems using flue gas from boilers(requirements additional to thoseprescribed in 3.10.1-3.10.7)

3.10.8.1 Arrangements shall be provided to enable thefunctioning of the inert gas plant to be stabilized beforecommencing cargo discharge.

3.10.8.2 Flue gas isolating valves shall be fitted in theinert gas supply mains between the boiler uptakes and theflue gas scrubber. These valves shall be provided with indi-cators to show whether they are open or shut, and precautionsshall be taken to maintain them gastight and keep the seatingsclear of soot. Arrangements shall be made to ensure thatboiler soot blowers cannot be operated when the corre-sponding flue gas valve is open.

3.10.8.3 A flue gas isolating valve shall be made of ma-terials capable of withstanding the flue gas temperature andresistant to the corrosive action of the gases.

3.10.8.4 The piping between the flue gas isolating valveand the scrubber shall be made of corrosion-resistant materialor adequately coated.

3.10.8.5 To permit safe maintenance, an additional wa-ter seal or other effective means of preventing flue gas leak-age shall be fitted between the flue gas isolating valves andscrubber or incorporated in the gas entry to the scrubber.

3.10.8.6 Automatic shut-down of the gas regulatingvalve shall be arranged in respect of failure of the inert gasboilers (see 3.10.7.6.8).

3.10.8.7 Automatic shut-down of the inert gas blowersand gas regulating valve shall be arranged on predeterminedlimits being reached in respect of 3.10.7.6.1, 3.10.7.6.2 and3.10.7.6.3.

3.10.9 Oil fired inert gas generator system(requirements additional to thoseprescribed in 3.10.1 - 3.10.7)

3.10.9.1 For inert gas generators use shall be made of oilfuel meeting the requirements prescribed in Rules, Part 7 -Machinery Installation, 1.1.2.

3.10.9.2 Where oil fuel having a flash point not exceed-ing 60oC (but not less than 43oC) is used, the generators shallbe located in a separate compartment. The compartment inwhich any oil fired inert gas generator is situated shall betreated as machinery space of category A with respect to fireprotection.

3.10.9.3 The inert gas generator system shall be pro-vided with at least two blowers. The Register may permitonly one blower if the system is capable of delivering the to-tal volume of gas required in 3.9.2 to the protected spaces,provided that sufficient spares for the blower and its primemover are carried on board to enable any failure of theblower and its prime mover to be rectified by the ship's crew.

3.10.9.4 Two fuel oil pumps shall be fitted to the inertgas generator. The Register may permit only one fuel oilpump on condition that sufficient spares for the fuel oil pumpand its prime mover are carried on board to enable any failureof the fuel oil pump and its prime mover to be rectified by theship's crew.

3.10.9.5 Where more than one inert gas generator isprovided, suitable shut-off arrangements shall be fitted on thedischarge outlet of each generator plant.

3.10.9.6 Arrangements shall be made to discharge theinert gas to the atmosphere during starting-up or in case ofequipment failure.

3.10.9.7 Where the inert gas generator is served bypositive displacement blowers, a pressure relief device shallbe provided to prevent excess pressure being developed onthe discharge side of the blower.

3.10.9.8 For inert gas systems of the inert gas generatortype, additional audible and visual alarms shall be providedto indicate:

.1 insufficient fuel oil supply;

.2 failure of the power supply to the gen-erator;


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.3 failure of the power supply to the auto-matic control system for the generator.

3.10.9.9 Automatic shutdown of the gas regulating valveand cease of the oil fuel supply to the generator shall be ar-ranged on predeterminated limits being reached in respect of3.10.7.6.1 and 3.10.7.6.2.

Automatic shutdown of the gas regulating valveshall also be arranged in respect of 3.10.9.8.2.

3.11 HALOGENATED HYDROCARBONSYSTEMS


3.11.1.1 The requirements of this section for halon sys-tems shall apply to already built in systems on existing ships.

New installations of halon systems are prohib-ited on all ships.

3.11.1.2 The use of Halon 1301 and Halon 2402 as fire-extinguishing media is permitted only. The density of halonsin a liquid state shall be assumed as equal to 1.57 g/cm3 forHalon 1307 and 2.18 g/cm3 for Halon 2402.

The Register may accept use of other halonsprovided their fire-extinguishing efficiency and safe applica-tion is at least as effective as that of Halon 1301 and Halon2402 respectively.

3.11.1.3 The quantity of fire extinguishing media avail-able shall be calculated according to the formula:

G = V ⋅ q , [kg]

where:V = design volume of the protected space,

[m3];q = specific consumption of the media,

[kg/m3]:− 0.23 for Halon 2402, for cargo spaces in-

tended for the carriage of motor vehicleswith fuel in their tanks for their own pro-pulsion;

− 0.2 for Halon 2402, for machinery spacesand other spaces;

− 0.31 for Halon 1301 for cargo spaces in-tended for the carriage of motor vehicleswith fuel in their tanks for their own pro-pulsion;

− 0.26 for Halon 1301 for machinery spacesand other spaces.

3.11.1.4 The capacity of containers for the storage ofextinguishing media shall be based on the filling ratio whichshall be not more than (per litre of volume of container):

− 0.9 l of liquefied media, for Halon 2402;− 1.1 kg of liquefied media, for Halon 1301.

3.11.1.5 The discharge arrangements shall be so de-signed that the minimum quantity of media required can besubstantially discharged in a nominal 20 s or less based onthe discharge of the liquid phase.

3.11.1.6 Automatic release of fire-extinguishing mediashall not be permitted, except as specified in 3.11.2.3.5 and3.11.3.

3.11.1.7 Means shall be provided for the crew to safelycheck the quantity of media and pressure within containers.

3.11.1.8 Discharge nozzles shall be so positioned that auniform distribution of fire extinguishing media is obtainedand that the discharge does not endanger personnel engagedin maintenance of the equipment or using the normal accessladders and escapes serving the compartment.

3.11.1.9 Means shall be provided for automatically giv-ing audible warning of the release of fire-extinguishing mediainto protected spaces (see 4.3).

3.11.2 Halon 1301 system

3.11.2.1 A manually initiated power release located in areadily accessible position near the exit outside the protectedspace shall be provided.

3.11.2.2 In order to provide overpressure in the storagecontainer for fire-extinguishing medium, preferably, nitrogenshall be used for this purpose.

The Register may accept use of other propellentgas having similar characteristics.

3.11.2.3 Only Halon 1301 may be stored within a pro-tected space. In such case containers shall be individuallydistributed throughout that space and the following require-ments shall be complied with:

.1 Duplicate sources of power shall be pro-vided for the release of system and shallbe located outside the protected space andbe immediately available except that formachinery spaces, one of the sources ofpower may be located inside the protectedspace;

.2 Electric power circuits connecting thecontainers shall be monitored for faultconditions and loss of power. Visual andaudible alarms shall be provided on thenavigating bridge or in the main fire con-trol station to indicate this;

.3 Pneumatic or hydraulic power circuitsconnecting the containers shall be dupli-cated. The sources of pneumatic or hy-draulic pressure shall be monitored forloss of pressure. Visual and audiblealarms shall be provided on the navigat-ing bridge or in the main fire control sta-tion to indicate this;

.4 Within the protected space, electrical cir-cuits essential for the release of the sys-tem shall be heat-resistant, e.g. mineral-insulated cable or equivalent. Piping sys-tems essential for the release of systemsdesigned to be operated hydraulically orpneumatically shall be of steel or otherequivalent heat-resisting material to thesatisfaction of the Register;

.5 Each pressure container shall be fittedwith an automatic over-pressure releasedevice which, in the event of the con-


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tainer being exposed to the effects of fireand the system not being operated, willsafely vent the contents of the containerinto the protected space;

.6 The arrangement of containers and theelectrical circuits and piping essential forthe release of any system shall be suchthat in the event of damage to any onepower release line through fire or explo-sion in a protected space, i.e., a singlefault concept, at least two thirds of thefire-extinguishing charge required in3.11.1.3 for that space can still be dis-charged having regard to the requirementfor uniform distribution of mediumthroughout the space. The arrangementsin respect of systems for spaces requiringonly one or two containers shall be to thesatisfaction of the Register;

.7 Not more than two discharge nozzlesshall be fitted to any pressure containerand the maximum quantity of agent ineach container shall be to the satisfactionof the Register having regard to the re-quirement for uniform distribution of me-dium throughout the space.

.8 Halon containers shall be easily accessi-ble for inspection purposes.

.9 The containers shall be monitored for de-crease in pressure due to leakage and dis-charge. Visual and audible alarms in theprotected area and on the navigatingbridge or in the space where the fire con-trol equipment is centralized shall be pro-vided to indicate this condition, exceptthat for cargo spaces, alarms are only re-quired on the navigating bridge or in themain fire control station.

3.11.3 Local automatically operated fixed fire-extinguishing units

3.11.3.1 Local automatically operated fixed fire-extinguishing units containing Halon 1301 fitted in enclosedareas of high fire risk within machinery spaces of category A,in addition to, and independent of, any required fixed fire-extinguishing system (see Table 3.1.2-1) may be acceptedsubject to compliance with the following:

.1 The space in which such additional localprotection is provided shall preferably beon one working level and on the samelevel as the access. At the discretion ofthe Register more than one working levelmay be permitted subject to an accessbeing provided on each level.

.2 The size of the space and arrangementsof accesses thereto and machinerytherein, shall be such that escape fromanywhere in the space can be effected inno more than 10 s.

.3 The total quantity of extinguishing me-dium provided in the local automaticallyoperated units shall be such that a con-centration of 7% at 20 oC based on the net

volume of the enclosed space is not ex-ceeded when either a fixed system or lo-cal automatically operated units have op-erated.

.4 The leakage into the protected space ofany unit shall be signalled both visuallyand audibly outside each access to themachinery space and at the navigatingbridge or in the main fire control station.

.5 A notice indicating that the space con-tains one or more automatically operatedfire-extinguishing units and stating whichmedium is used, shall be displayed out-side each access thereto.

.6 The time of discharge of a unit, based onthe discharge of the liquid phase, shall be10 s or less.

.7 The arrangement of local automaticallyoperated fire-extinguishing units shall besuch that their release does not result inloss of electrical power or reduction ofthe manoeuvrability of the ship.

.8 The requirements prescribed in 3.2.4.7,3.11.1.7 and 3.11.1.8 shall be met also.

3.11.3.2 Automatically operated fire-extinguishing unitsfitted in machinery spaces over equipment having a high firerisk, in addition to and independent of any required fixed fire-extinguishing system (see Table 3.1.2-1) may be acceptedsubject to compliance with the following:

.1 The quantity of fire-extinguishing me-dium provided in local automatically op-erated units shall be such that a vapour inair concentration not greater than 1.25%at 20oC based on the gross volume of themachinery space is obtained in the eventof their simultaneous operation.

.2 The requirements prescribed in 3.2.4.7,3.11.1.7, 3.11.1.8, 3.11.3.1.4 to 3.11.3.1.7shall be met also.

3.11.4 Halon 2402 system

3.11.4.1 At least two storage containers with fire-extinguishing media shall be provided in the main fire stationfor the system. The capacity of each container shall be suffi-cient for the storage of the total required quantity of the me-dia (see 3.11.1.3).

Both containers shall be so connected to thesystem that upon emptying of one container the other can beimmediately used. The temperature in the station shall be notless than 20 oC.

3.11.4.2 Provision shall be made for not less than twostarting-air bottles. The capacity of each bottle shall provideone-shot discharge of the required quantity of fire-extinguishing medium.

The final air pressure in the bottle shall ensureminimum adequate pressure at the farthermost nozzle to pro-vide effective spraying of the fire-extinguishing medium.

In ships where air compressors are fitted, provi-sion shall be made for compressed air supply from the com-pressor to the air bottles.


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Non-return shut-off valves shall be fitted on thepiping connecting air bottles with the compressed air systemand the containers.

3.11.4.3 In ships where provision is made for com-pressed air supply from the compressor to the starting-airbottles the Register may accept only one storage containerwith not less than 115% of the required quantity of extin-guishing medium and only one starting-air bottle enablingone-shot discharge of extinguishing medium, provided thefollowing has been complied with:

.1 A container shall be fitted with the con-tent gauge giving an audible and visualalarm on the navigating bridge or in themain fire control station if the quantity ofliquid in container decreases by 10% ormore.

.2 A gauge indicating the pressure in thestarting-air bottles shall be provided incontrol station for propulsion machineryor arrangements shall be made for auto-matic replenishing the air under pressurein the bottle.

3.11.4.4 In spaces with a deck-head height exceeding 5m the discharge nozzles shall be arranged in several tiers.

Discharge nozzles fitted in the cargo spaces shall be arrangedfor spraying in the horizontal direction, as far as practicable.

3.11.4.5 A storage container shall be fitted with:.1 a content gauge. If glass gauge is used for

this purpose, it shall have plain glass andstop valves fitted at the connection to thecontainer;

.2 a non-return shut-off valve and a syphontube for release of extinguishing medium.Register may accept use of not more thanthree syphon tubes to provide adequatedischarge of extinguishing medium in theprotected spaces which are different involume;

.3 a safety relief valve for discharge of com-pressed air in the atmosphere.

3.11.4.6 A safety relief valve and pressure gauge shallbe fitted on the connection pipe of the compressed air for thestorage container. Between the storage container and thesedevices a shut-off valve may be fitted, subject to special ap-proval of the Register. Halon vapours from safety relief valveshall be led outside the fire station to the atmosphere.

3.11.4.7 All fittings on the containers shall have bellowsseals or other seals approved by the Register.

3.12 DRY POWDER SYSTEM


3.12.1.1 Only dry chemical powder approved by theRegister for this purpose shall be used in the dry powder fire-extinguishing systems.

3.12.1.2 The system shall be activated by nitrogen orother inert gas approved by the Register for this purpose.

3.12.1.3 The system shall consist of:.1 independent self-contained powder units

with dry powder containers, propellentgas cylinders and a distribution manifold;

.2 extinction posts with monitors and/orhand hose lines:

.3 pipes and fittings for bringing the systeminto operation and control and powdersupply to the extinction posts.

3.12.1.4 Provision shall be made for a remote release ofthe system from each extinction post.

The system shall be brought into operation innot more than 30 s after the opening of the propellent gascylinder from the remotest extinction post of the powder unitconcerned.

3.12.2 Capacity and discharge rate of the systemNumber of monitors and hand hose lines

3.12.2.1 In liquefied gas carriers, for the purpose of fire-fighting fire on the deck in the cargo area including cargopiping and cargo loading/unloading manifold areas, a suffi-cient quantity of dry chemical powder shall be stored in eachcontainer to provide a minimum 45 seconds continuous dis-charge time for all monitors and hand hose lines attached toeach powder unit at their rated capacity.

3.12.2.2 Each hand hose line shall be capable of dis-charge at a rate not less than 3.5 kg/s, the powder throw rangebeing not less than 8 m.

Hand hose lines shall be considered to have amaximum effective distance of coverage equal to the lengthof hose.

The capacity of each fixed monitor shall be notless than 10 kg/s, maximum distance of coverage for moni-tors having a capacity of 10, 25 or 45 kg/s shall be not less10, 30 or 40 m, respectively.

3.12.2.3 The system shall be capable of delivering pow-der from not less than two hand hose lines or combinationmonitor/hand hose line to any part of the cargo area includingdeck cargo piping as referred to in 3.12.2.1.

Not less than one hand hose line or monitorshall be located at aft end of the cargo area.

3.12.2.4 A monitor shall be provided and so arranged asto protect the cargo loading/unloading manifold areas and becapable of actuation and discharge locally and remotely.

The monitor is not required to be remotelycontroled if it can deliver the necessary powder to all re-quired areas of coverage from a single position.

3.12.2.5 The quantity of dry powder for the protection ofspaces indicated in 1.2.2.14 shall be calculated on the basis of10 seconds continuous discharge time of the system and witha dry powder discharge rate of at least 0.1 kg/m3 per second.

3.12.2.6 The quantity of the propellent gas shall providefor a single entire release of the required quantity of drypowder stored in containers.


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3.12.3 Powder units

3.12.3.1 The independent self-contained powder unitsshall be located outside the protected space and aft of thecargo area, respectively.

In ships where length of the cargo area ex-ceeds150 m, one powder unit may be located within the cargoarea.

3.12.3.2 In liquefied gas carriers the system for use inthe cargo area including cargo piping and cargo manifoldarea shall consist of at least two independent self-containeddry chemical powder units with associated controls, pressur-izing medium fixed piping, monitors and/or hand hose lines.For ships with a cargo capacity of less than 1,000 m3 onlyone such unit need be fitted, subject to approval by the Reg-ister.

3.12.3.3 Ships fitted with bow or stern loading and dis-charge arrangements shall be provided with an additional drychemical powder unit complete with at least one monitor andone hand hose line. The area of the cargo line forward or aftof the cargo area shall be protected by hand hose lines.

3.12.3.4 A fire-extinguishing unit having two or moremonitors, hand hose lines or combinations thereof, shall haveindependent pipes with a manifold at the powder container.Where two or more pipes are attached to a unit the arrange-ment shall be such that any or all of the monitors and handhose lines are capable of simultaneous or sequential operationat their rated capacities.

3.12.4 Extinction posts

3.12.4.1 Each extinction post shall be equipped with anon-kinkable hand hose lines of not more than 33 m in lengthfitted with a discharge nozzle or a monitor and associatedremote controls of the system.

3.12.4.2 Hand hose lines and nozzles shall be ofweather-resistant construction or stored in weather-resistanthousing or covers and be readily accessible.

3.12.4.3 Hand hose lines nozzles shall be capable ofon/off powder discharge.

3.12.4.4 The cross-section of the discharge nozzle shallbe equal or less than the cross-section of the hand hose linebut not less than 50%.

3.12.4.5 Release cylinders shall be fitted with pressuregauge.

3.12.4.6 Detailed instruction manuals on putting thesystem into action shall be provided at each extinction post.

3.12.5 Dry powder containers, pipes andfittings

3.12.5.1 Provision shall be made in the powder con-tainer for a powder discharge pipe cut short at about 100 mmfrom the bottom.

3.12.5.2 Means shall be provided in the lower part of thepowder containers for propellent gas flow into the containerpreventing the powder from flowing back into the propellentgas pipe.

3.12.5.3 The powder charge in the container shall notexceed 95% of the volumetric capacity of the container.

3.12.5.4 The cross-section of the powder supply pipingand fittings shall not have contractions and abrupt expan-sions. A bending radius of the fixed dry powder pipes shallbe not less than 10 times the pipe diameter.

3.12.5.5 The cross-sectional area of the manifold at thepowder containers shall be not less than the total area of theindividual distribution pipes connected thereto and shall benot more than twice that area.

3.12.5.6 Means shall be provided for purging the pow-der manifold and individual distribution pipes after use.

3.12.5.7 Fixed nozzles shall be provided for powder dis-charge into the protected spaces indicated in 1.2.2.14.

The number and arrangement of the dischargenozzles and diameter of the distribution piping shall be suchas to ensure an effective uniform distribution of powderthroughout the volume of the protected space.

3.13 GAS FIRE-EXTINGUISHINGSYSTEMS USING MEDIA OTHER

THAN CARBON DIOXIDE

3.13.1 General

3.13.1.1 Suppliers for the design and installation of gasfire-extinguishing systems for the protection of machineryspaces and cargo pump-rooms, using extinguishing mediaother than carbon dioxide are subject to special approval bythe Register.

3.13.1.2 Gas fire-extinguishing systems for the protec-tion of machinery spaces and cargo pump-rooms, using ex-tinguishing media other than carbon dioxide shall be ap-proved in accordance with a standard acceptable to the Reg-ister (see MSC/Circ.848 and MSC.1/Circ.1267).

3.13.1.3 All systems shall be designed to allow evacua-tion of the protected space prior to discharge. Means shallalso be provided for giving warning of the release of fire-extinguishing medium into any space in which personnelnormally work or to which they have access.

3.13.1.4 Halocarbon agents may be used up to the NoObserved Adverse Effect Level (NOAEL) calculated on thenet volume of the protected space at the maximum expectedambient temperature without additional safety measures.

For halocarbon systems using agent above itsNOAEL and inert gas systems means shall be provided tolimit the exposure time.

3.13.1.5 In no case shall a halocarbon agent be used atconcentrations above the Lowest Observed Adverse EffectLevel (LOAEL) nor the Approximate Lethal Concentration(ALC) nor shall an inert gas be used at gas concentrationsabove 52% calculated on the net volume of the protectedspace at the maximum expected ambient temperature.

3.13.1.6 For system using halocarbon agents, the systemshall be designed for a discharge of 95% of the design con-centration in not more than 10 s.


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For systems using inert gases, the dischargetime shall not exceed 120 s for 85% of the design concentra-tion.

3.13.1.7 For cargo pump rooms handling flammable liq-uids other than oil or petroleum products, the system may beused only if the design concentration for the individual cargohas been established in accordance with the recognized stan-dard (see 3.13.1.2) and is documented in the approval certifi-cate.

3.13.2 Calculation of the supply ofextinguishing gas

3.13.2.1 The supply of extinguishing gas shall be calcu-lated based on the net volume of the protected space, at theminimum expected ambient temperature using the designconcentration specified in the system's type approval certifi-cate.

3.13.2.2 The design concentration shall be at least 30%above the minimum extinguishing concentration determinedby a cup burner test acceptable to the Register.

These concentrations shall be verified by full-scale testing.

3.13.2.3 The net volume is that part of the gross volumeof the space which is accessible to the free extinguishing gasincluding the volumes of the bilge and of the casing. Objectsthat occupy volume in the protected space shall be subtractedfrom the gross volume. This includes, but is not necessarilylimited to:

- internal combustion engines;- reduction gear;- boilers;- heat exchangers;- tanks and trunks;- exhaust gas pipes, boilers and silencers.

3.13.2.3 The volume of free air contained in air receiv-ers located in a protected space shall be added to the net vol-ume unless the discharge from the safety valves is led to theopen.

3.13.2.4 In systems with centralised gas storage for theprotection of more than one space the quantity of extin-guishing gas available need not be more than the largestquantity required for any one space so protected.

3.13.3 Gas containers

3.13.3.1 Containers for the extinguishing gas or a pro-pellant needed for the discharge shall comply in respect oftheir material, construction, manufacture and testing with therequirements specified in Rules, Part 10 - Boilers, Heat Ex-changers and Pressure Vessels, Chapter 6.

3.13.3.2 The filling ratio shall not exceed that specifiedin the system's type approval documentation.

3.13.3.3 Means shall be provided for the ship's person-nel to safely check the quantity of the fire-extinguishing me-dium in the containers.

3.13.4 Storage

3.13.4.1 Centralised systems

3.13.4.1.1 Gas containers in centralised systems shall bestored in a storage room complying with the requirements forstorage rooms in 3.2.4, with the exception that storage tem-peratures up to 55ºC are permitted, unless otherwise specifiedin the type approval certificate.

3.13.4.2 Modular systems

3.13.4.2.1 All systems covered by this section may beexecuted as modular systems with the gas containers, andcontainers with the propellant if any, permitted to be storedwithin the protected space providing the requirements speci-fied in 3.13.4.2.2 to .9 are complied with.

3.13.4.2.2 The arrangement of gas containers, electricalcircuits and piping essential for the release of any systemshall be such that in the event of damage to any one powerrelease line or container valve through mechanical damage,fire or explosion in the protected space i.e. a single fault con-cept, at least the amount of gas needed to achieve the mini-mum extinguishing concentration can still be discharged,having regard to the requirement for uniform distribution ofthe extinguishing gas throughout the space.

Systems that can not comply with the above,for instance systems using only one bottle located inside theprotected space, can not be accepted. Such systems shall bedesigned with the bottle(s) located outside the protectedspace, in a dedicated room (see 3.2.4).

3.13.4.2.3 Duplicate sources of power located outside theprotected space shall be provided for the release of the sys-tem and be immediately available, except that for machineryspaces, one of the sources of power may be located inside theprotected space.

3.13.4.2.4 Electric power circuits connecting the contain-ers shall be monitored for fault conditions and loss of power.Visual and audible alarms shall be provided to indicate thisand located in the control room for the propulsion machinery.

3.13.4.2.5 Pneumatic, electric or hydraulic power circuitsconnecting the containers shall be duplicated and widelyseparated. The sources of pneumatic or hydraulic pressureshall be monitored for loss of pressure. Visual and audiblealarms shall be provided to indicate this and located in thecontrol room for the propulsion machinery.

3.13.4.2.6 Within the protected space, electrical circuitsessential for the release of the system shall be heat-resistant,e.g. mineral-insulated cable or equivalent. Piping systems es-sential for the release of systems designed to be operated hy-draulically or pneumatically shall be of steel.

3.13.4.2.7 Not more than two discharge nozzles shall befitted to any container.

3.13.4.2.8 The containers shall be monitored for decreasein pressure due to leakage or discharge. Visual and audiblealarms in the protected space and on the navigating bridgeshall be provided to indicate this.

3.13.4.2.9 Each container shall be fitted with an overpres-sure release device which under the action of fire causes the


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contents of the container to be automatically discharged intothe protected space.

3.13.5 Piping and nozzles

3.13.5.1 Piping shall be made of weldable steel materi-als designed according to the working pressure of the system.

3.13.5.2 Wherever possible, pipe connections shall bewelded. For detachable pipe joints, flange connections shallbe used. For pipes with a nominal inside diameter of less than50 mm threaded welding sockets may be employed.

3.13.5.3 Piping terminating in cargo pump rooms shallbe made of stainless steel or be galvanised.

3.13.5.4 Flexible hoses may be used for the connectionof containers to a manifold in centralised systems or to a rigiddischarge pipe in modular systems. Hoses shall not be longerthan necessary for this purpose and be type approved for theuse in the intended installation. Hoses for modular systemsshall be flame resistant.

3.13.5.5 Only nozzles approved for use with the systemshall be installed. The arrangement of nozzles shall complywith the parameters specified in the system's type approvalcertificate, giving due consideration to obstructions. In thevicinity of passages and stairways nozzles shall be arrangedsuch as to avoid personnel being endangered by the dis-charging gas.

3.13.5.6 The piping system shall be designed to meet therequirements specified in 3.13.1.6.

3.13.6 Release arrangements and alarms

3.13.6.1 The system shall be designed for manually imi-tiated power release only (see 3.13.4.2.3). The controls forthe release shall be arranged in lockable cabinets (releasestations), the key shall be kept conspicuously next to the re-lease station in a locked case with a glass panel. Separate re-lease stations shall be provided for each space which can beflooded separately. The release stations shall be arranged nearto the entrance of the protected space and shall be readily ac-cessible also in case of a fire in the related space. Releasestations shall be marked with the name of the space they areserving.

3.13.6.2 Centralised system shall be provided with addi-tional means of releasing the system from the storage room.

3.13.6.3 Mechanical ventilation of the protected spaceshall be stopped automatically before the discharge of the ex-tinguishing gas.

3.13.6.4 Audible and visual alarms shall be provided inthe protected space and additional visual alarms at each ac-cess to the space (see 3.13.1.3).

3.13.6.5 The alarm shall be actuated automatically byopening of the release station door. Means shall be providedto safeguard that the discharge of extinguishing gas is notpossible before the alarm has been actuated for a period oftime necessary to evacuate the space but not less than 20 s.

3.13.6.6 Audible alarms shall be of horn or siren soundand be clearly distinguishable from other audible signals.

3.13.6.7 Electrical alarm systems shall have power sup-ply from the main and emergency source of power.

3.13.6.8 For the use of electrical alarm systems in gasdangerous zones the requirements specified in Rules, Part 12- Electrical Equipment, Chapter 19 shall be complied with.

Where pneumatically operated alarms are usedthe permanent supply of compressed air shall be safeguardedby suitable arrangements.

3.13.7 Tightness of the protected space

3.13.7.1 Apart from being provided with means ofclosing all ventilation openings and other openings in theboundaries of the protected space, special consideration shallbe given to requirements specified in 3.13.7.2 to .4.

3.13.7.2 A minimum gas holding time of 15 min shall beprovided.

3.13.7.3 The release of the system may produce signifi-cant over- or underpressurisation in the protected spacewhich may necessitate the provision of suitable pressureequalising arrangements.

3.13.7.4 Escape routes which may be exposed to leakagefrom the protected space shall not be rendered hazardousduring or after the discharge of the extinguishing gas in theevent of the fire. Control stations and other locations that re-quire manning during a fire situation shall have provisions tokeep HF and HCl below 5 ppm at that location. The concen-trations of other products shall be kept below values consid-ered hazardous for the required duration of exposure.

3.13.8 Warning signs and operatinginstructions

3.13.8.1 Warning signs shall be provided at each accessto and within a protected space, as appropriate:

- "WARNING! This space is protected by afixed gas fire-extinguishing system using.Do not enter when the alarm is actuated!"

- "WARNING! Evacuate immediatelyupon sounding of the alarm of the gas-fireextinguishing system."The release stations for cargo pumprooms shall be provided with an addi-tional warning as follows:

- "Release to be operated only in the eventof fire in the pump room. Do not use forinerting purposes!"

3.13.8.2 Brief operating instructions shall be posted atthe release stations.

3.13.8.3 A comprehensive manual with the descriptionof the system and maintenance instructions shall be providedon the ship (see 1.4.6 and 1.4.9). The manual shall contain anadvice that any modifications to the protected space that alterthe net volume of the space will render the approval for theindividual installation invalid. In this case amended drawingsand calculations shall be submitted to the Register for ap-proval.

3.13.8.4 For all ships, the fire-extinguishing system de-sign manual shall address recommended procedures for the


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control of products of gas decomposition, including HF va-pour generated from fluorocarbon extinguishing agents whichcould impair escape. The performance of fire-extinguishingarrangements on passenger ships shall not present health haz-ards from decomposed extinguishing gases i.e. the decompo-sition products shall not be discharged in the vicinity ofmuster (assembly) stations.

3.13.9 Documents

3.13.9.1 Prior to commencing of the installation thefollowing documents shall be submitted in triplicate to theRegister for approval:

.1 arrangement drawing of the protectedspace showing machinery etc. in thespace, and the location of nozzles, con-tainers (modular system only) and releaselines as applicable;

.2 list of volumes deducted from the grossvolume;

.3 calculation of the net volume of the spaceand required supply of extinguishing gas;

.4 isometrics and discharge calculations;

.5 release schematic;

.6 drawing of the release station and of thearrangement in the ship;

.7 release instructions for display at the re-lease station;

.8 drawing of storage room (centralisedsystems only);

.9 alarm system schematic;

.10 parts list;

.11 shipboard manual.

3.14 FIXED LOCAL APPLICATIONFIRE-EXTINGUISHING SYSTEMS

3.14.1 The fixed water-based or equivalent local ap-plication fire-extinguishing system shall be of an approvedtype and based on the Guidelines for the approval of fixedwater-based local application fire-extinguishing systems foruse in category A machinery spaces (see MSC/Circ.913 andMSC/Circ.1082).

3.14.2 Any installation of nozzles on board shall re-flect the arrangement successfully tested (see MSC/Circ.913). If a specific arrangement of the nozzles is foreseen onboard, deviating from the one tested, it can be accepted pro-vided such arrangement additionally passes fire tests basedon the accepted scenarios (see MSC/Circ. 1082).

3.14.3 In the case of periodically unattended machin-ery spaces, the fire-extinguishing system shall have bothautomatic and manual release capabilities. In the case of con-tinuously manned machinery spaces, the fire-extinguishingsystem is only required to have a manual release capability.

3.14.4 The automatic release shall be activated by adetection system capable of reliably identifying the localzones. Consideration shall be given to prevent accidental re-lease.

3.14.5 Fixed local application fire-extinguishing sys-tems shall protect areas such as the following without the ne-

cessity of engine shutdown, personnel evacuation, or sealingof the spaces:

.1 the fire hazard portions of internal com-bustion machinery used for the ship'smain propulsion and power generation;

.2 boiler fronts (boiler burner location);

.3 the fire hazard portions of incinerators;

.4 purifiers for heated fuel oil; and

.5 oil fired equipment, such as inert gas gen-erators and thermal oil heaters, if locatedin machinery spaces above 500 m3.

3.14.6 Activation of any local application system shallgive a visual and distinct audible alarm in each protectedspace, in the engine control room and on the navigationbridge. The alarm shall indicate the specific system and/orzone activated. The system alarm requirements describedwithin this paragraph are in addition to, and not a substitutefor, the detection and fire alarm system required elsewhere inthis part of the Rules.

3.14.7 Means shall be provided for testing the auto-matic release of the system without delivering water in theprotected areas.

3.14.8 The operating and maintenance instructions forthe system shall be displayed at each control position (see1.4.6 and 1.4.9).

3.15 PRESSURE TESTING OF FIRE-EXTINGUISHING SYSTEMS

3.15.1 Fire-extinguishing systems shall be tested withtest pressure in compliance with the Table 3.15.1-1.

Table 3.15.1-1

Hydraulic test pressureItem

Systems and assemblies tobe tested in work

shopon board

ship1 2 3 4

Water and foam fire-extinguishing systems (seealso Rules,Part 8 – Piping, 16):.1 piping; − in operation

1

.2 sprinkler systempiping. − 1 p

2 Dry powder systempiping 1.5 p 1 p

(by air)3 Carbon dioxide systems:

3.1 high pressure:.1 piping between

cylinders andrelease valves;

− 1.5 p4)

.2 distribution pipingpassing throughaccommodationspaces;

− 5 MPa

.3 piping betweenrelase valves andnozzles.

− 1 MPa

3.2 low pressure:.1 piping between

storage tank andrelease valves;

− 1.5 p4)


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Table 3.15.1-1 (continuous)

1 2 3 4.2 piping between

release valves andnozzles.

−1 p

(by air)

3.3 gas fire-extinguishing sys-tems, other than car-bon dioxide:.1 piping between

storage tank andrelease valves;

− 1.5 p

.2 piping betweenrelease valves andnozzles.

− 1.5 p5)

.3 piping passingthrough enclosedspaces other thanthe protectedspace; and ifpassing throughaccommodationspaces

−

−

1 Mpa

5 Mpa

4 Piping and scrubber forinert gas system −

1 p(by air)

5 Halogenated hydrocar-bon systems piping − 1.5 p

6 Pressure air piping 1.5 p 1 p (by air)7 Cylinders,containers

and storage tanks.1 operating under

pressure, includingcylinders withoutvalves;

1.5 p 1 p(by air)

.2 operating withoutpressure;

by filling upto the top of

air pipe

inoperation

.3 cylinders withvalves.

1 p(by air) −

8 Fittings2 1.5p,but notless than 0.2

MPa−

Notes to Table 3.15.1-1:1. "p" - maximum working pressure in the

system. For the gas fire-extinguishingsystems "p" is a design pressure of a cyl-inder, container or tank, [MPa].

2. Fittings in assembly shall be tested for thetightness of closing with a pressure of atleast 1.25 p and the valves of carbon di-oxide and other gas fire-extinguishingmedia cylinders with the highest breakingpressure of safety disc (see 3.9.2.6.1).

3. The systems shall be tested in assemblyon board ship upon completion of allerection work.

4. Piping specified in item 3.1.1 and 3.2.1after being hydraulically tested in work-shop with a pressure of 1.5 p, may betested on board by air pressure of 1 p.

5. 1.5 times the max pressure assessed bythe discharge calculations.

6. In ships of 500 gross tonnage and overthe water fire main shall be tested with apressure of not less than 1 MPa (see3.3.4.3).


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4 FIRE DETECTION

4.1 FIRE DETECTION AND FIREALARM ARRANGEMENTS

4.1.1 The following spaces, except spaces having lit-tle or no fire risk such as void spaces, public toilets, carbondioxide rooms and similar spaces shall be protected by thefixed fire detection and fire alarm system complying with re-quirements of section 4.2, as appropriate:

.1 In passenger ships carrying more than 36passengers:.1.1 accommodation spaces, service

spaces and control stations, includ-ing corridors, stairways and escaperoutes within accommodationspaces. The system shall be in-stalled throughout each separatezone, whether vertical or horizontaland so arranged as to providesmoke detection. Smoke detectorsneed not be fitted in private bath-rooms and galleys. Heat detectorsare acceptable in refrigerated cham-bers and in other spaces wheresteam and fumes are produced suchas saunas and laundries.

.2 In passenger ships carrying not more than36 passengers:.2.1 accommodation spaces and service

spaces and, where it is considerednecessary by the Register, in controlstations. The system shall be in-stalled throughout each separatezone, whether vertical or horizontaland so arranged as to detect thepresence of fire in such spaces andproviding smoke detection in corri-dors, stairways and escape routeswithin accommodation spaces; or

.2.2 only corridors, stairways and escaperoutes within accommodationspaces (in addition to the automaticsprinkler system-see Table 3.1.2-1,note 2.2). The system shall be so ar-ranged as to provide smoke detec-tion.

.3 In passenger ships:.3.1 the entire main vertical zone con-

taining the atrium. The system shallbe so arranged as to provide smokedetection throughout the zone;

.3.2 on cabin balconies where furnitureand furnishings other than those ofrestricted fire risk are used (see2.1.1.12).The system shall comply withguidelines as specified inMSC.1/Circ.1242;

.3.3 for all stairways, corridors and es-cape routes within accommodationspaces and atriums consideration

shall be given to the installation ofspecial purpose smoke detectorswithin ventilation ducting (seeMSC/Circ.1035).

.4 In cargo ships of 500 gross tonnage andupwards:.4.1 corridors, stairways and escape

routes within accommodationspaces, where method IC or IIC isadopted. The system shall be so ar-ranged as to provide smoke detec-tion. (see 2.3.1.2.1 and 2.3.1.2.2 andTable 3.1.2-1, note 2.3); or

.4.2 all accommodation spaces andservice spaces, where method IIICis adopted. The system shall be soarranged as to detect the presence offire in such spaces and providingsmoke detection in all corridors,stairways and escape routes withinaccommodation spaces. (see2.3.1.2.3).Service spaces built away from theaccommodation block need not befitted with a fixed fire detectionsystem.

.5 Ro-ro spaces intended for the carriage ofdangerous goods. All other cargo spacesintended for the carriage of dangerousgoods, unless a sample extraction smokedetection system is installed.

.6 All cargo spaces intended for the carriageof motor vehicles with fuel in their tanksfor their own propulsion and ro-ro spaces,unless a sample extraction smoke detec-tion system is installed.

.7 Unaccessible cargo spaces in passengerships, unless a sample extraction smokedetection system is installed, exceptwhere the Register considers that theconditions of the voyages are such that itwould be unreasonable to apply this re-quirement.

.8 Special category spaces, except spaces inwhich the patrol is maintained by a con-tinuous fire watch at all times during thevoyage, but no any such space intendedfor the carriage of dangerous goods (see2.7.2.1.3.1, 4.1.9.6 and 4.4.5).

.9 Machinery spaces of category A and,where the Register considers it necessary,other machinery spaces as follows:.9.1 unmanned and periodically unat-

tended machinery spaces; and.9.2 machinery spaces where the instal-

lation of automatic and remotecontrol systems and equipment hasbeen approved in lieu of continuousmanning of the space; and/or

.9.3 machinery spaces where the mainpropulsion and associated machin-ery, including the main sources ofelectrical power, are provided withvarious degrees of automatic or re-


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mote control and are under continu-ous manned supervision from acontrol room.

.10 Separate rooms where oil fuel purifiersare installed.

4.1.2 Where a fixed fire detection and fire alarmsystem is required for the protection of spaces other than cor-ridors, stairways and escape routes within accommodationspaces, at least one detector complying with the requirementsof section 4.2 shall be installed in each such space.

4.1.3 In passenger ships, the fixed fire detection andfire alarm system shall be capable of remotely and individu-ally identifying each detector and manually operated callpoint.

A section of fire detectors and manually oper-ated call points shall not be situated in more than one mainvertical zone.

4.1.4 The fixed fire detection and fire alarm systemshall not be used for any other purpose, except that closing offire doors, other than watertight doors, shutting down theventilation fans and similar functions may be permitted at thecontrol panel.

4.1.5 The control panel shall be located on the navi-gation bridge or in the continuously manned central controlstation, where provided.

4.1.6 In passenger ships carrying more than 36 pas-sengers, the fire detection alarms for the systems required in4.1.1.1.1 shall be centralized in a continuously manned cen-tral control station. In addition, controls for remote closing ofthe fire doors and shutting down the ventilation fans shall becentralized in the same location. The ventilation fans shall becapable of reactivation by the crew at the continuouslymanned control station. The control panels in the centralcontrol station shall be capable of indicating open or closedpositions of fire doors and closed or off status of the detec-tors, alarms and fans.

4.1.7 Fixed fire detection and fire alarm systems forcabin balconies shall be approved by the Register based onthe guidelines given in MSC.1/Circ.1242.

4.1.8 Manually operated call points complying withrequirements of section 4.2 shall be provided and located in areadily accessible and conspicuous positions, in addition tothe required fixed fire detection and fire alarm system (see4.1.1).

4.1.9 Manually operated call points shall be installedthroughout the following spaces and on the following loca-tions:

.1 in all corridors, stairways and escaperoutes serving accommodation and serv-ice spaces and control stations;

.2 in lobbies;

.3 in public spaces having an area of morethan 150 m2;

.4 in machinery spaces of category A (see4.2.2.10);

.5 in separate rooms designated for hotwork;

.6 in special category spaces including thosespaces in which the patrol is maintained

by a continuous fire watch at all timesduring the voyage;

.7 in ro-ro spaces and vehicle spaces.At least one manually operated call point shall

be located close to each exit from such spaces.

4.1.10 In corridors serving accommodation spaces,service spaces and control stations the manually operated callpoints shall be installed on each deck such that no part of thecorridor is more than 20 m from a manually operated callpoint.

4.1.11 In passenger ships, within each main verticalzone there shall be provided at least one manually operatedcall point which shall be located on each side of the ship andat each exit from the accommodation and service spaces area.

4.1.12 In special category spaces and in vehicle spacesand ro-ro spaces where the crew are normally employed,manually operated call points shall be spaced so that no partof the space is more than 20 m from a manually operated callpoint, and one shall be placed close to each exit form suchspaces.

4.1.13 Manually operated call points shall be paintedred and shall be easily seen both under normal and emer-gency lighting conditions.

The button of the manually operated call pointshall be protected with a break-glass enclosure.

4.1.14 The fixed fire detection and fire alarm systemstogether with their electrical, electronic and informatics com-ponents shall be suitably designed to withstand all specificconditions normally encountered in ships (see Rules, Part 12– Electrical Equipment).

4.1.15 The function of fixed fire detection and firealarm systems shall be tested under varying conditions ofventilation after installation.

The function of fixed fire detection and firealarm systems shall be periodically tested to the satisfactionof the Register by means of equipment producing hot air atthe appropriate temperature, or smoke or aerosol particleshaving the appropriate range of density or particle size, orother phenomena associated with incipient fires to which thedetector is designed to respond (see Rules, Part 1 – GeneralRequirements, Chapter 5).

4.1.16 Suitable instructions and component spares forthe onboard testing and maintenance of the system shall beprovided and located on the navigation bridge or in the cen-tral fire control station, where provided (see Table 5.2.1-1).

4.2 FIRE DETECTION AND FIREALARM SYSTEMS

4.2.1 Fixed fire detection and fire alarmsystem

4.2.1.1 Any required fixed fire detection and fire alarmsystem with manually operated call points shall be capable ofimmediate operation at all times.

4.2.1.2 There shall be not less than two sources ofpower supply for the electrical equipment used in the opera-


2009

tion of the fixed fire detection and fire alarm system, one ofwhich shall be an emergency source. The supply shall beprovided by separate feeders reserved solely for that purpose.Such feeders shall run to an automatic change-over switchsituated in, or adjacent to, the control panel for the fire detec-tion system (see Rules, Part 12 – Electrical Equipment,7.5.3).

4.2.1.3 Power supplies and electric circuits necessaryfor the operation of the system shall be monitored for loss ofpower or fault conditions as appropriate. Occurrence of afault condition shall initiate a visual and audible fault signalat the control panel which shall be distinct from a fire signal.

4.2.1.4 Detectors shall be operated by heat, smoke orother products of combustion, flame, or any combination ofthese factors. Detectors operated by other factors indicativeof incipient fires may be considered by the Register, providedthat they are no less sensitive than such detectors. Flame de-tectors shall only be used in addition to smoke or heat detec-tors.

4.2.1.5 Smoke detectors required in stairways, corri-dors and escape routes within accommodation spaces shall becertified to operate before the smoke density exceeds 12.5%obscuration per metre, but not until the smoke density ex-ceeds 2% obscuration per metre. Smoke detectors to be in-stalled in other spaces shall operate within sensitivity limitsto the satisfaction of the Register having regard to the avoid-ance of detector insensitivity or oversensitivity (see4.1.1.3.3.).

4.2.1.6 Heat detectors shall be certified to operate be-fore the temperature exceeds 78°C, but not until the tem-perature exceeds 54°C, when the temperature is raised tothose limits at a rate less than 1°C per minute. At higher ratesof temperature rise, the heat detector shall operate withintemperature limits to the satisfaction of the Register havingregard to the avoidance of detector insensitivity or oversensi-tivity.

4.2.1.7 Heat detectors shall be certified to positivelyoperate at a temperature which is at least 5°C higher thannominal operating temperature of the sensing element.

4.2.1.8 Heat detectors are acceptable in refrigeratedchambers and in spaces where steam and fumes are produced.The operation temperature of heat detectors in drying roomsand similar spaces of a normal high ambient temperature maybe up to 130°C, and up to 140°C in saunas.

4.2.1.9 All detectors shall be of a type such that theycan be tested for correct operation and restored to normalsurveillance without the renewal of any component.

4.2.1.10 Detectors and manually operated call pointsshall be grouped into sections.

4.2.1.11 A section of fire detectors which covers a con-trol station, a service space or an accommodation space shallnot include a machinery space of category A. For fixed firedetection and fire alarm systems with remotely and individu-ally identifiable fire detectors, a loop covering sections of firedetectors in accommodation, service spaces and control sta-tions shall not include sections of fire detectors in machineryspaces of category A.

4.2.1.12 Where the fixed fire detection and fire alarmsystem does not include means of remotely identifying eachdetector individually, no section covering more than one deckwithin accommodation spaces, service spaces and controlstations shall normally be permitted except a section whichcovers an enclosed stairway. In order to avoid delay in identi-fying the source of fire, the number of enclosed stairway. Inorder to avoid delay in identifying the source of fire, thenumber of enclosed spaces included in each section shall belimited as determined by the Register. In no case shall morethan 50 enclosed spaces be permitted in any section. In thesystem is fitted with remotely and individually identifiablefire detectors, the sections may cover several decks and serveany number of enclosed spaces.

4.2.1.13 Fixed fire detection and fire alarm systems witha zone address identification capability shall be so arrangedthat:

.1 means are provided to ensure that anyfault (e.g. power break, short circuit,earth, etc.) occurring in the loop will notrender the whole loop ineffective;

.2 all arrangements are made to enable theinitial configuration of the system to berestored in the event of failure (e.g. elec-trical, electronic, informatics, etc.);

.3 the first initiated fire alarm will not pre-vent any other detector from initiatingfurther fire alarms; and

.4 no loop will pass through a space twice.When this is not practical (e.g. for largepublic spaces), the part of the loop whichby necessity passes through the space fora second time shall be installed at themaximum possible distance from theother parts of the loop.

4.2.1.14 Detectors shall be located for optimum per-formance. Positions near beams and ventilation ducts or otherpositions where patterns of air flow could adversely affectperformance and positions where impact or physical damageis likely shall be avoided. Detectors which are located on theoverhead shall be a minimum distance of 0.5 m away frombulkheads, except in corridors, lockers and stairways.

4.2.1.15 The maximum spacing of detectors shall be inaccordance with the table below:

Table 4.2.1.15-1Spacing of detectors

Type ofdetector

Maximumfloor area

per detector

Maximumdistance

apart betweencentres

Maximumdistance

away frombulkheads

Heat 37 m2 9 m 4.5 mSmoke 74 m2 11 m 5.5 m

The Register may require or permit differentspacing to the that specified in the above table if based upontest data which demonstrate the characteristics of the detec-tors.

4.2.1.16 Electrical wiring which forms part of the sys-tem shall be so arranged as to avoid galleys, machineryspaces of category A and other enclosed spaces of high fire


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risk except where it is necessary to provide for fire detectionor fire alarms in such spaces or to connect to the appropriatepower supply.

4.2.1.17 A loop of fire detection systems with a zoneaddress identification capability shall not be damaged at morethan one point by a fire.

4.2.1.18 The activation of any detector or manually op-erated call point shall initiate a visual and audible fire signal(see Code on Alarms and Indicators, resolution A.830(19)) atthe control panel and indicating units. If the signals have notreceived attention within 2 min, an audible alarm shall beautomatically sounded throughout the crew accommodationand service spaces, control stations and machinery spaces ofcategory A (see 4.4.1). This alarm sounder system need notbe an integral part of the detection system.

In passenger ships detectors fitted in cabins,when activated, shall also be capable of emitting, or cause tobe emitted, an audible alarm within the space where they arelocated.

4.2.1.19 Indicating units shall, as a minimum, denote thesection in which a detector has been activated or manuallyoperated call point has been operated. At least one unit shallbe so located that it is easily accessible to responsible mem-bers of the crew at all times. One indicating unit shall be lo-cated on the navigation bridge if the control panel is locatedin the main fire control station.

4.2.1.20 Clear information shall be displayed, mimicdiagram, or similar on or adjacent to each indicating unitabout the spaces covered and the location of the sections.

4.2.2 Fixed fire detection and fire alarmsystem for machinery spaces

4.2.2.1 The fixed fire detection and fire alarm systemrequired in 4.1.1.9 shall be so designed and the detectors sopositioned as to detect rapidly the onset of fire in any part ofthose spaces including heated air ducts and flue gas uptakesof main boilers, auxiliary boilers with a steam capacity of 3t/h and exhaust gas boilers in such spaces, and under anynormal conditions of operation of the machinery and varia-tions of ventilation as required by the possible range of ambi-ent temperatures (see Rules, Part 9 – Machinery, 2.2.5).

4.2.2.2 In addition to prescribed in 4.2.1, the followingrequirements shall be complied with:

.1 Control panel shall be located on thenavigation bridge, in the fire control sta-tion, where provided, or in any othereasilly accessible place unlikely to be cutoff in the event of fire in the machineryspaces concerned.

.2 Indicating unit shall denote the section inwhich detector or manually operated callpoint has operated.

.3 The detection system shall initiate audibleand visual alarms distinct in both respectsfrom the alarms of any other system notindicating fire (see Code on Alarms andIndicators, resolution A. 830(19), in suf-ficient places to ensure that the alarms areheard and observed on the navigatingbridge and by a responsible engineer offi-

cer. When the navigating bridge is un-manned the alarm shall sound in a placewhere a responsible member of the crewis on duty.

.4 The indicating unit shall be provided withfacilities for functional testing.

4.2.3.3 A combination of detectors shall be provided inorder that the system will react to all possible fire character-istics.

In spaces of restricted height, less than 2,5 m,and where their use is specially appropriate and approved, theRegister may accept detection systems using only thermaldetectors.

4.2.2.4 Smoke detectors shall be certified to operatebefore the smoke density exceeds 50% obscuration per metre.

4.2.2.5 Heat detectors installed in machinery spaces ofcategory A shall be adjusted for a temperature oscillation rateof at least 1.9-2.3 Hz and higher, and shall operate at ampli-tude rise of (2 + 0.5)°C, regardless of the temperature in thespace.

4.2.2.6 Heat detectors shall be arranged for maximumdistance apart between centres of 8 m and maximum floorarea per detector of 50 m2.

4.2.2.7 Heat detectors installed in boiler flue gas up-takes shall operate at the temperature rise of at least 100°Cand more, above the nominal flue gas temperature.

4.2.2.8 Adjustable detectors shall be provided withholding devices and an indicator of the preset sensitivity.

4.2.2.9 When provision is made for temporarily standstill position of individual detectors, this shall be clearlymarked. When a preset period of time expires, a stand stilldetector or a section of detectors shall be automatically re-stored to normal surveillance.

4.2.2.10 Manually operated call points shall be installedin the following locations:

.1 in corridors, close to each exit from themachinery spaces;

.2 in the close vicinity to the escape doorslocated on the lower part of the space;

.3 in engine control room.

4.2.3 Sample extraction smoke detectionsystems

4.2.3.1 Any required system shall be capable of con-tinuous operation at all times except that systems operatingon a sequential scanning principle may be accepted, providedthat the interval between scanning the same position twicegives an overall response time to the satisfaction of the Reg-ister.

4.2.3.2 Two independent power supplies shall be pro-vided for the electrical equipment used in the operation of thesystem, one of which shall be emergency power supply.

4.2.3.3 Power supplies necessary for the operation ofthe system shall be monitored for loss of power. Any loss ofpower or fault in operation shall initiate a visual and audiblesignal at the control panel and the navigating bridge whichshall be distinct from a signal indicating smoke detection.


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4.2.3.4 The system shall be designed, constructed andinstalled so as to prevent the leakage of any toxic or flamma-ble substances or fire-extinguishing medium into any ac-commodation and service space, control station or machineryspace.

4.2.3.5 The system shall be of a type that can be testedfor correct operation and restored to normal surveillancewithout the renewal of any component.

4.2.3.6 The sample extraction smoke detection systemand its equipment shall be suitably designed to withstand allspecific conditions normally encountered in ships.

4.2.3.7 The sensing unit shall be certified to operate be-fore the smoke density within the sensing chamber exceeds6.65% obscuration per metre.

4.2.3.8 Duplicate sample extraction fans shall be pro-vided. The fans shall be of sufficient capacity to operate un-der normal ventilation conditions in the protected area andshall give an overall response time to the satisfaction of theRegister.

4.2.3.9 The control panel shall permit observation ofsmoke in the individual sampling pipe.

4.2.3.10 Means shall be provided to monitor the airflowthrough the sampling pipes so designed as to ensure that, asfar as practicable, equal quantities are extracted from eachinterconnected accumulator.

4.2.3.11 Sampling pipes shall be a minimum of 12 mminternal diameter except when used in conjunction with fixedgas fire-extinguishing systems when the minimum size ofpipe shall be sufficient to permit the fire-extinguishing gas tobe discharged within the appropriate time.

4.2.3.12 Sampling pipes shall be provided with an ar-rangement for periodically purging with compressed air.

4.2.3.13 At least one smoke accumulator shall be lo-cated in every enclosed space for which smoke detection isrequired. However, where a space is designed to carry oil orrefrigerated cargo alternatively with cargoes for which asmoke sampling system is required, means shall be providedto isolate the smoke accumulators in such compartments fromthe system. Such means shall be to the satisfaction of theRegister.

4.2.3.14 Smoke accumulators shall be located for opti-mum performance and shall be spaced so that no part of theoverhead deck area is more than 12 m measured horizontallyfrom an accumulator. Where systems are used in spaceswhich may be mechanically ventilated the position of thesmoke accumulators shall be considered having regard to theeffects of ventilation.

4.2.3.15 Smoke accumulators shall be positioned whereimpact or physical damage is unlikely to occur.

4.2.3.16 Not more than four accumulators shall be con-nected to each sampling point.

4.2.4.17 Smoke accumulators from more than one en-closed space shall not be connected to the same samplingpoint.

4.2.3.18 The sampling pipe arrangements shall be suchthat the location of the fire can be readily identified.

4.2.4.19 Sampling pipes shall be self-draining and suita-bly protected from impact or damage from cargo handling.

4.2.3.20 The control panel shall be located on the navi-gation bridge or in the continuously manned central controlstation.

4.2.3.21 Clear information shall be displayed on, or ad-jacent to, the control panel designating the spaces covered.

4.2.3.22 The detection of smoke or other products ofcombustion shall initiate a visual and audible signal at thecontrol panel and the navigation bridge or continuouslymanned central control station.

4.2.3.23 Power supplies necessary for the operation ofthe system shall be monitored for loss of power. Any loss ofpower shall initiate a visual and audible signal at the controlpanel and the navigation bridge which shall be distinct from asignal indicating smoke detection.

4.2.3.24 Suitable instructions and component sparesshall be provided for the testing and maintenance of the sys-tem. The function of the detection system shall be periodi-cally tested by means of an equipment producing smoke (seeRules, Part 1 – General Requirements, Chapter 5).

4.3 PRE-DISCHARGE ALARM FORFIXED GAS FIRE-EXTINGUISHING

SYSTEMS

4.3.1 Means shall be provided for giving an audiblealarm of the release of fire-extinguishing medium into ma-chinery spaces, ro-ro spaces and other protected spaces wherepersonnel normally work or they can be expected to enter andwhere the access is therefore facilitated by doors or manwayhatches. Audible warning is not required for small spaceswhere the length of the escape route to the door leading toopen deck does not exceed 5 m, or the length of the ladderbeing not more than 2.5 m.

The Register may require installation of thevisual alarm also, where find necessary.

4.3.2 An audible alarm of the release of fire-extinguishing medium shall be independent of the fire-extinguishing system and shall be given only in the protectedspace.

4.3.3 The alarm shall be automatically sounded byopening the door of the release box (see 3.9.1.18) and shalloperate for a suitable period of time before the fire-extinguishing medium is released both remotely and locally.

Advance period of time of alarm sounding shallbe equal to the period of the time necessary to evacuate thespace but not less than 20 seconds.

4.3.4 The signal shall be distinct from all other sig-nals and audible in all parts of the protected space.

4.3.5 Audible alarms fitted to warn about the releaseof fire-extinguishing medium into cargo pump rooms and ro-ro spaces intended for carriage of motor vehicles with fuel intheir tanks for their own propulsion shall comply with thefollowing requirements:

.1 the alarm shall be air operated providedthe air supply is clean and dry; or


2009

.2 the alarm shall be electrically operatedprovided the electric actuating mecha-nism is certified intrinsically safe; or

.3 the alarm shall be electrically operatedprovided the electric actuating mecha-nism is located outside the protectedspace.

4.3.6 The power supply to electrical alarm systemsshall be guaranteed in the event of failure of the ship's mainpower supply.

If the alarm is operated pneumatically, a per-manent supply of compressed air for the alarm system shallbe ensured.

4.4 FIRE ALARMS, PATROLS ANDPUBLIC ADDRESS SYSTEMS

4.4.1 All passenger ships shall at all times when atsea or in port (except when out of service), be so manned orequipped as to ensure that any initial fire alarm is immedi-ately received by the responsible member of the crew (see4.2.1.18).

4.4.2 A special fire alarm, operated from the navi-gating bridge or central fire control station, where provided,shall be fitted to summon the crew. This alarm may be part ofthe ship's general alarm system but it shall be capable of be-ing sounded independently of the alarm to the passengerspaces (see Rules, Part 12 - Electrical Equipment, 7.5).

4.4.3 In passenger ships a public address system (seeMSC/Circ.808) or other effective means of communicationshall be available throughout the accomodation and servicespaces and control stations and weather decks.

4.4.4 In passenger ships an efficient patrol systemshall be maintained so that an outbreak of fire may bepromptly detected. Each member of the fire patrol shall betrained to be familiar with the arrangements of the ship aswell as the location and operation of any equipment he maybe called upon to use.

4.4.5 An efficient patrol system shall be maintainedin special category spaces. In any such space in which thepatrol is not maintained by a continuous fire watch at alltimes during the voyage there shall be provided a fixed firedetection and fire alarm system approved by the Register (see4.1.1.8).

4.4.6 Each member of the fire patrol (see 4.4.4. and4.4.5) shall be provided with a two-way portable VHF radiotelephone apparatus.


2009

5 FIRE-EXTINGUISHINGAPPLIANCES, SPARE PARTS

AND TOOLS

5.1 FIRE-EXTINGUISHINGAPPLIANCES

5.1.1 Fire-extinguishing appliances on board shipsshall be kept in good order and be available for immediateuse at all times when at sea or in port (see MSC/Circ.850).

5.1.2 Depending on the type and size of the ship andcategory and equipment of the ship's spaces, the ships shallbe provided with fire-extinguishing appliances as prescribedin Table 5.1.2-1 (see also MSC.1/Circ.1275).

Where, in the opinion of the Register, a firehazard exists in any machinery space for which no specificprovisions for fire-extinguishing appliances are prescribed inTable 5.1.2-1 there shall be provided in, or adjacent to, thatspace such a number of approved portable fire extinguishersor other means of fire extinction as the Register may deemsufficient.

See also ANNEX 5 to this part of the Rules.

5.1.3 The couplings of all portable fire-extinguishingappliances (fire hoses, foam applicators, extension pipes, etc.)shall be of the standard quick-acting type and size to suite thesize of the fire hydrant couplings fitted on board.

All portable fire-extinguishing appliances shallbe made of a material resistant to marine environment.

Aluminium alloys may be used for fire hosecouplings, foam applicators and extension pipes, except incargo areas of tankers and combination carriers (≤ 60°C).

In tankers and combination carriers (≤ 60oC)fire hose nozzles and foam applicators (including couplings)in cargo area shall be of the non-sparking type.

5.1.4 Fire hoses shall comply with the following:.1 they shall have a length of at least 10 m,

but not more than:.1.1 15 m in machinery spaces;.1.2 20 m in other spaces and open

decks; and.1.3 25 m for open decks on ships with a

maximum breadth in excess of 30m;

.2 they shall be made of non-perishablematerial approved by the Register;

.3 each hose shall be provided with a nozzleand the quick acting couplings of an ap-proved type.

5.1.5 Fire hose nozzles shall comply with the fol-lowing:

.1 standard nozzle sizes shall be 12 mm, 16mm and 19 mm or as near thereto as pos-sible (see 3.3.6).Larger diameter nozzles may be providedat the discretion of the Register.

.2 all nozzles shall be of an approved dual-purpose type (i.e., spray/jet type) incorpo-rating a shut-off.

.3 Fire hose nozzles made of plastic typematerial, e.g. polycarbonate, are consid-ered acceptable provided capacity andserviceability are documented and thenozzles are found suitable for the marineenvironment.

5.1.6 Foam applicators shall comply with the fol-lowing:

.1 the capacity of any applicator shall be notless than 400 l/min of foam solution andthe foam jet throw in still air conditionsshall be not less than 15 m;

.2 for each applicator there shall be provideda metal extension pipes being of about 4m in length totally and fire hose of suit-able length, all fitted with couplings oneach end;

.3 half the number of the applicators pro-vided shall be located in front of the su-perstructure facing the cargo area and atleast two at the forecastle.

5.1.7 A portable foam applicator unit shall consist ofa foam nozzle/branch pipe, either of a self inducing type or incombination with a separate inductor, capable of being con-nected to the fire main by a fire hose, together with a portabletank containing at least 20 l of foam concentrate and at leastone spare tank of foam concentrate of the same capacity. Inaddition the following shall be complied with:

.1 The nozzle/branch pipe and inductor shallbe capable of producing effective foamsuitable for extinguishing an oil fire, at afoam solution flow rate of at least 200l/min at the nominal pressure in the firemain.

.2 The foam concentrate shall be approvedby the Register based on Guidelines forthe performance and testing criteria andsurveys of low-expansion foam concen-trates for fixed fire-extinguishing system(see MSC/Circ. 582/Corr.1.

.3 The values of the foam expansion anddrainage time of the foam produced bythe portable foam applicator unit shall notdiffer more than +10% of that determinedin paragraph .2.

.4 The portable foam applicator unit shall bedesigned to withstand clogging, ambienttemperature changes, vibration, humidity,shock, impact and corrosion normally en-countered on ships.

Portable foam applicator units shall be locatedin conspicuous positions near the fire hydrants.

5.1.8 Portable fire extinguishers on board ships shallbe of the approved types and shall comply with a recognizednational or international standards (see A.951(23) and ISO7165:1999).

Additionally following shall be complied with:.1 Extinguisher shall be designed to be car-

ried and operated by hand and have, in


2009

working order, a total mass of not morethan 23 kg.

.2 All extinguishers shall have a fire-extinguishing capability at least equiva-lent to that of a fluid extinguisher of 9 lcharge of an extinguishing medium.Unless expressly provided otherwise,each dry powder or carbon dioxide extin-guisher shall have a charge of at least 5kg and each foam extinguisher shall havea charge of at least 9 l.

.3 Accommodation spaces, service spacesand control stations shall be providedwith extinguishers of appropriate typesand in sufficient number to the satisfac-tion of the Register. Ships of 1,000 grosstonnage and upwards shall carry at leastfive extinguishers.For ships of less than 1,000 gross tonnagebut not less than 500 the number of extin-guishers shall be not less than three andfor ships of less than 500 gross tonnagenot less than two.

.4 One of the portable extinguishers in-tended for use in any space shall bestowed near the entrance to that space.The remaining extinguishers in the publicspaces and workshops shall be located ator near the main entrances and exits.

.5 Carbon dioxide extinguishers shall not beplaced in accommodation spaces. In con-trol stations and other spaces containingelectrical or electronic equipment or ap-pliances necessary for the safety of theship, extinguishers shall be providedwhose extinguishing media are neitherelectrically conductive nor harmful to theequipment and appliances.Extinguishers provided for galleys shallbe of the fluid or carbon dioxide type.

.6 In accommodation spaces part of the ex-tinguishers provided shall be of the fluidtype and in the machinery spaces of thefoam type.

.7 Extinguishers shall be situated ready foruse at easily visible places, which can bereached quickly and easily at any time inthe event of a fire, and in such a way thattheir serviceability is not impaired by theweather, vibration or other external fac-tors. All extinguishers shall be providedwith devices which indicate whether theyhave been used.

.8 Spare charges shall be provided for 100%of the first ten extinguishers and 50% ofthe remaining extinguishers capable ofbeing recharged on board. Not more thansixty total spare charges are required. In-structions for recharging shall be carriedon board.

.9 For extinguishers which cannot be re-charged on board, additional extinguish-ers of the same quantity, type, capacity

and number as determined in paragraph .8shall be provided in lieu of spare charges.

.10 In ships of less than 500 gross tonnageone additional extinguisher of the sametype and capacity, as provided on board,shall be provided as spare.

5.1.9 Foam fire extinguishers of at least 45 l capacityand 135 l capacity shall comply with the following:

.1 they shall be located in the protectedspace and suitably fixed against roughsea;

.2 only fresh water shall be used for charg-ing the fire extinguishers. The air for anair-foam extinguisher shall be kept in acylinder provided solely for that particu-lar extinguisher. The quantity of air in thecylinder shall be at least 25 per cent inexcess of the rated amount.The air cylinder shall be fitted with apressure gauge;

.3 foam shall be delivered through a hosebeing about 10-15 m in length. In order toincrease the range of action for 136 litrefire extinguishers, fixed piping for at-tachment of hose thereto may be fitted ,the total length of pipes and hoses not ex-ceeding 30 m.In any case, the location of fire extin-guishers and the length of pipes and hosesshall be such that the foam may be dis-charged into any part of the space. Forfire extinction under the floor plates orengine bed plates, the openings in thefloors to lead a hose through or an appro-priate arrangements of fixed branch pipesshall be provided.

5.1.10 Carbon dioxide or dry powder fire extinguish-ers of at least 16 kg capacity and 45 kg capacity shall complywith the following:

.1 carbon dioxide extinguishers shall not beused in spaces of such volume that thecomplete discharge of the carbon dioxidecontained in the cylinders is liable tocause concentration in excess of 5 percent;

.2 an extinguishing medium shall be dis-charged to any part of the protected spacethrough flexible hose of 10-15 m inlength and, where necessary, throughfixed piping;

.3 they shall be located in the protectedspace and suitably fixed against roughsea.

5.1.11 Metal receptacles containing sand or dry saw-dust impregnated with soda shall comply with the following:

.1 the capacity of receptacle shall be:100 l in ships of less than 2,000 grosstonnage;125 l in ships of 2,000 gross tonnage andupwards;

.2 each receptacle shall be provided with areadily opening cover, a suitable showel


2009

for spreading the material and a devicefor holding the cover in the open position.

5.1.12 Fire smothering blankets shall comply with thefollowing:

.1 they shall be sufficiently stout and dura-ble;

.2 they shall be made of fire-proof fabric ofthickness not less than 3.5 mm or wire-armoured textile or clean unraised thickfelt;

.3 they shall be stowed in special radilyopenable cases or lockers;

.4 the blanket dimensions shall be not lessthan 1.5 m x 2.0 m.

5.1.13 Set of fire-fighting tool shall comply with thefollowing:

.1 one complete set shall include one fireaxe and one light-weight fire crowbar;

.2 it shall be stowed on regular board andfastened with quick -release straps;

.3 in cargo spaces intended for carriage ofmotor vehicles with fuel in their tanks fortheir own propulsion one set of fire-fighting tool shall be located at each ac-cess to such spaces from accommodationand service spaces.

5.1.14 Arrangement of the fire-fighters outfit, includ-ing set of personal equipment, breathing apparatus, sparecharges and their storage shall comply with the following.

.1 Personal equipment shall consist of:.1.1 protective clothing of material to

protect the skin from the heat radi-ating from the fire and from burnsand scalding by steam. The outersurface shall be water-resistant;

.1.2 boots and gloves of rubber or otherelectrically non-conducting mate-rial;

.1.3 a rigid helmet providing effectiveprotection against impact (see EN-1486 or equivalent;

.1.4 an electric safety lamp (hand lan-tern) of an approved type with aminimum burning period of 3 h.Electric safety lamps on tankers andcombination carriers (< 60°C) andthose intended to be used in hazard-ous areas in other ships, shall be ofan explosion-proof type; and

.1.5 a fire axe with handle of hard woodor other electrically non-conductingmaterial.

.2 A breathing apparatus shall be:.2.1 of the self-contained compressed

air-operated type with the volumeof air contained in the cylinders ofat least 1,200 l, or other self-contained breathing apparatuswhich shall be capable of function-ing for at least 30 min.All air cylinders for breathing appa-ratus shall be interchangeable; and

.2.2 provided, for each breathing appa-ratus with a fireproof lifeline of notless than 30 m in length and not lessthan 3.5 kN SWL capable of beingattached by means of a snaphook tothe harness of the apparatus or to aseparate belt in order to prevent thebreathing apparatus becoming de-tached when the lifeline is operated.

.3 Two spare charges shall be provided foreach required breathing apparatus. Pas-senger ships carrying not more than 36passengers and cargo ships that areequipped with suitably located means forfully recharging the air cylinders freefrom contamination need carry only onespare charge for each required apparatus.In passenger ships carrying more than 36passengers, at least two spare charges foreach breathing apparatus shall be pro-vided.

.4 Passenger ships carrying more than 36passengers shall be fitted with a suitablylocated means for fully rechargingbreathing air cylinders, free from con-tamination. The means for rechargingshall be either:.4.1 breathing air compressors supplied

from the main and emergencyswitchboard, or independentlydriven, with a minimum capacity of60 l/min per required breathing ap-paratus, not to exceed 420 l/min; or

.4.2 self-contained high-pressure storagesystems of suitable pressure to re-charge the breathing apparatus usedon board, with a capacity of at least1,200 l per required breathing appa-ratus, not to exceed 50,000 l of freeair.

.5 The fire-fighter’s outfits or sets of per-sonal equipment shall be kept ready foruse in an easily accessible location that ispermanently and clearly marked and,where more than one fire-fighter’s outfitor more than one set of personal equip-ment is carried, they shall be stored inwidely separated positions.

.6 In passenger ships, at least two fire-fighter’s outfits and, in addition, one setof personal equipment shall be availableat any one position. At least two fire-fighter’s outfits shall be stored in eachmain vertical zone.

5.1.15 Portable electric drills shall be provided with anelectric cable of sufficient length. Pneumatic portable drillmay be used instead of an electric drill.

5.1.16 Portable electric exhaust fans shall be providedwith an electric cable and flexible hoses of sufficient lengthto ensure the ventilation of any space protected. Ventilationfan for gas-dangerous spaces shall be of non-sparking type.

5.1.17 Portable fire motor-pumps shall comply withthe following:


2009

.1 the minimum capacity of the pump shallbe at least 12 m3/h at a pressure head ofnot less than 0.2 MPa at the pump outletand suction head of not less than 0.05MPa. The centrifugal pump shall be ofself-priming type;

.2 the pump motor shall be of diesel typeand capable of being readily started at anambient temperature under or above zeroeither by hand or by a special starter.There shall be provided a sufficientquantity of fuel to ensure the operation ofpump for at least 1.5 hours without refu-elling.The ship shall carry an additional quantityof fuel for refuelling;

.3 the pump shall be provided with suctionhose of sufficient length fitted with a suc-tion strainer and a nonreturn valve, twodelivery hoses, each 12 m long, two dual-purpose fire hose nozzles with an outletdiameter of at least 10 mm and a branchcoupling for connecting two fire hoses;

.4 delivery hoses and nozzles shall be fittedwith couplings of the same type and sizeas those used in the water fire main sys-tem.

.5 the pump-motor shall be provided withtools and accessories as per manufac-turer's recommendation.

5.1.18 International shore connection (see Figure5.1.18-1) shall comply with the following:

.1 outside diameter of flange: 178 mm;

.2 inside diameter of flange: 64 mm;

.3 bolt circle diameter: 132 mm;

.4 4 holes, 19 mm in diameter, spaced equi-distantly and slotted to the flange periph-ery;

.5 flange thickness: at least 14.5 mm;

.6 bolts: 4 pcs, each of 16 mm diameter and50 mm in length;

.7 bolt nuts: 4 pcs, each of 16 mm in di-ameter;

.8 washers for bolts: 8 pcs.

Figure 5.1.18-1

The international shore connection shall be ofsteel or other equivalent material and shall be designed for1.0 MPa services. The flange shall have a flat face on oneside and on the other side shall be permanently attached to acoupling that will fit the ship's hydrant and hose. The con-nection shall be kept on board ship together with a gasket ofany material suitable for 1.0 MPa services.

5.1.19 A water fog applicator shall consist of a metalL-shaped pipe, the long limb being about 2 m in length capa-ble of being fitted to a fire hose and the short limb beingabout 250 mm in length and fitted with a fixed water fognozzle or capable of being fitted with a water spray nozzle.

Water fog applicators shall be kept in the vicin-ity of the hydrants or, if intended for breathing apparatus,near them.

5.1.20 Portable instruments shall be capable of meas-uring the concentration of flammable and toxic vapour andgases and oxygen in the air, as applicable. In tankers andcombination carriers (≤ 60oC), fitted with inert gas systems,at least two portable instruments shall be capable of measur-ing concentrations of flammable vapours in inerted atmos-phere. Instruments shall be provided with a sufficient set ofspares (when only one such instrument is provided onboard)and detailed instructions for its use.

Suitable means shall be provided onboard forthe calibration of such instruments.

The ship’s crew shall be trained in the use ofsuch instruments.

5.1.21 Emergency escape breathing devices (EEBDs)shall provide personnel breathing protection against a haz-ardous atmosphere while escaping to an area of safety.

On all ships EEBDs shall be situated ready for use at easilyvisible places, which can be reached quickly and easily at anytime in the event of fire. For the Guidelines for the perform-ance, location, use and care of EEBDs see MSC/Circ. 849.


2009

Table 5.1.2-1

Item Type of fire-extinguishing appliances Quantity of fire-extinguishing appliances to be kept on board

1 2 3

1. Fire hoses with couplings (see 5.1.4):

.1 for water: .1 See 3.3.6.2 i 3.3.6.3

.2 for foam: .1 Half the number of foam hydrants, but not less than four, for cargo tankdeck area.

.2 For other spaces in compliance with the number of foam hydrants fitted.2. Fire hose nozzles and foam applicators:

.1 dual purpose nozzles for producinga compact and a sprayed water jet(see 5.1.5):

.1 In compliance with the number of fire hoses fitted.

.2 foam applicators (see 5.1.6): .1 Half the number of foam hydrants, but not less than four, for cargo tankdeck area;

.2 For other spaces in compliance with the number of foam hydrants fitted..3 extension pipes

(see 5.1.6):.1 In compliance with the number of foam aplicators, for cargo tank deck

area.3. Portable foam applicator units (see

5.1.7):.1 in passenger ships and cargo ships of 500 gross tonnage and upwards in

machinery spaces of category A and boiler rooms:– one unit for each space;

.2 in store rooms for fuel oil and work-shops where fuel oil, flammableliquids and combustible materials are used:- one unit for each space;

.3 in special category spaces:- at least two units

.4 on open deck of container ships:- at least two units.

.5 in ro-ro and vehicle spaces intended for the carriage of motor vehicleswith fuel in their tanks for their own propulsion:– at least two units.

4. Portable fire extinguishers using ex-tinguishing medium as follows: water(with or without additives), foam, drypowder/dry chemical (standard, mul-tiple or general purpose), carbon di-oxide, wet chemical and clean agents(see 5.1.8).Dry powder fire extinguishers maybe used as an equivalent to foam fireextinguishers provided they use anapproved type of dry powder.

The minimum number and arrangement of portable fire extinguishers incontrol stations, accommodation and service spaces , machinery spaces,cargo spaces, weather decks and other spaces on board ships shall bedetermined on the basis of two fire extinguishers for every 30 m or partthereof of the deck length on which such spaces are located, but not lessthan the following:

.1 Control stations: .1 one Class A or C extinguisher for every 50 m2 and/or part thereof of thespace; one extinguisher may be fitted in the corridor for a group of smallspaces with a total area of up to 50 m2, provided that the entrances to thespaces are adjacent and situated in the same corridor. Not required in un-attended spaces in cargo ships of less than 500 gross tonnage;

.2 two Class A or C extinguishers for the wheelhouse of 50 m2 and above,otherwise only one;

.3 one Class A or C extinguisher for central control station for propulsionmachinery and, additionally, one extinguisher, when containing mainswitchboard, suitable for electric fires;

.4 two Class B and/or C extinguishers for space containing an emergencydiesel generator. For the space containing diesel – driven power sourcefor the emergency fire pump only one such extinguisher suffice.


2009

Tablica 5.1.2-1 (nastavak)

.2 Accommodation and service spacesand galleys:

.1 for every 25 m, or part thereof, of the length of the corridors serving suchspaces- one Class A extinguisher;

.2 for every 200 m2, or part thereof, of the public spaces- one Class A extinguisher. For spaces of less than 15 m2 in area - not re-quired;

.3 in galleys and bakeries with electrical or gas-fired equipment - one Class Bextinguisher and, additionally, one of Class F or K for galleys with deep fatfryers

.4 in lockers and store rooms for flammable materials - one Class B extin-guisher for each space, or group of small spaces;

.5 in other service spaces - one Class A or B extinguisher (if not available incorridor near the entrance to the space).

.3 Machinery spaces:.1 in machinery spaces of category A containing internal combustion ma-

chinery – a sufficient number of Class B extinguishers or equivalentwhich shall be so located that no point in the space is more than 10 mwalking distance from an extinguisher and that there are at least two suchextinguishers in each such space; for cargo ships of less than 500 grosstonnage at least one such extinguisher;

.2 in machinery spaces of category A containing oil-fired boilers or oil fuelunits, in each firing space in each boiler room and in each space in which apart of the oil fuel installation is located- at least two Class B extinguishers. (see item 7. in this table);

.3 in separate machinery spaces containing internal combustion machinery of lessthan 375 kW total power output, used for the purposes other than main pro-pulsion, and/or different auxiliary machinery- at least one Class B extinguisher for every 50 m2 or a part thereof of thespace;

.4 in separate spaces containing main switchboards- two Class C extinguishers.In spaces having an area of less than 15 m2 one such extinguisher, locatednear the entrance, suffice;

.5 in battery rooms, other than those intended for radio station and emergencyservices- one Class C extinguisher located at outside of the entrance to the room;

.6 in cargo pump-rooms and cargo hose spaces- one Class B extinguisher for every 30 m2 or part thereof, of the floor area.

.4 Other spaces:.1 in workshops

- one Class B extinguisher for every 25 m2, or part thereof, of the floor area.In welding shops- one Class C extinguisher, in addition;

.2 in special category spaces and ro-ro spaces at each deck level- Class B extinguishers shall be provided and spaced not more than 20 mapart on both sides of the space. At least one such extinguisher shall belocated at each access to such a space;

.3 in cargo spaces intended for the carriage of motor vehicles with fuel in theirtanks for their own propulsion– one Class B extiguisher at each entrance to such spaces;

.4 for cargo spaces intended for the carriage of dangerous goods see 2.7;

.5 for platforms for helicopters see 2.1.13.


2009


5. .1 Foam fire extinguishers of at least 45l capacity or carbon dioxide orequivalent dry powder fire extin-guishers of at least 16 kg capacity(see 5.1.9 and 5.1.10):

.1 in machinery spaces of category A containing internal combustion ma-chinery or, in addition, oil fuel units and/or oil-fire boilers and in spacescontaining steam turbines or enclosed steam engines with a total aggre-gate output of not less than 375 kW, in each such space- foam extinguishers sufficient in number to enable foam or its equiva-lent to be directed onto any part of the fuel and lubricating oil pressuresystems, gearing and other fire hazards portions.For spaces containing steam turbines and enclosed steam engines fittedwith a fixed fire extinguishing system (see Table 3.1.2-1, item 8.) whichprovides protection equivalent to that required by this subparagraph,such extinguishers need not be provided;

.2 in spaces containing electric generators and/or electrical machineryused for main propulsion- at least one such extinguisher for each space.

6. .1 Foam fire extinguisher of at least 135l capacity, or carbon dioxide or drypowder fire extinguisher of at least45 kg capacity (see 5.1.9 and 5.1.10):

.1 in machinery spaces containing oil-fired boilers- not less than one approved foam type extinguisher in each space.In the case of domestic boilers of less than 175 kW such an extinguisheris not required;

.2 for landing deck for helicopters see 2.1.13.7. .1 Metal receptacles containing sand or

sawdust impregnated with soda (see5.1.11):

.1 in each firing space in each boiler room and in each space in which apart of the oil fuel installation is situated- one metal receptacle. An approved portable Class B extinguisher maybe substituted as an alternative.

8. .1 Fire smothering blankets (see5.1.12):

.1 one blanket for every 40 m, or a part thereof, of cargo deck length in oiltankers and weather deck length in passenger ships;

.2 in all other ships- two blankets for ships of 1,000 gross tonnage and upwards;- not less than one blanket for ships of less than 1,000 gross tonnage;

.3 in machinery spaces of category A in ships of 300 gross tonnage and up-wards- one blanket for each space;

.4 in workshops- one blanket for each space.

9. .1 Sets of fire-fighting tools (see5.1.13):

.1 in ships of less than 2,000 gross tonnage- at least one set;

.2 in ships of 2,000 gross tonnage and upwards, but less than 4,000- at least two sets;

.3 in ships of 4,000 gross tonnage and upwards, but less than 10,000- at least three sets;

.4 in ships of 10,000 gross tonnage and upwards- at least four sets.

10. .1 Fire-fighter’s outfit (see 5.1.14): .1 in passenger ships- at least two outfits and, in addition, for every 80 m, or a part thereof ofthe aggregate of the lengths of all passenger spaces and service spaceson the deck where are located such spaces or, if there is more than onesuch deck, on the deck which has the largest aggregate of such lengths- two outfits and two sets of personal equipment;

.2 in passenger ships carrying more than 36 passengers- additional two outfits for each main vertical zone, except for stairwayenclosures which constituate individual main vertical zones and for themain vertical zones in the fore or aft end of a ship which do not containspaces of categories (6), (7), (8) or (12), (see 2.2.4.2).


2009


.3 in cargo ships of 4,000 gross tonnage and upwards- four outfits.In ships of 2,500 gross tonnage and upwards, but less than 4,000- three outfits. In ships of 500 gross tonnage and upwards, but less than 2,500 - two outfits.In ships of less than 500 gross tonnageone outfit;

.4 in tankers and combination carriers (≤ 60oC) and tankers (> 60oC) of 500gross tonnage and upwards- four outfits.In ships of less than 500 gross tonnage- two outfits.

.5 The Register may require additional fire-fighter’s outfits and sets ofpersonal equipment, having due regard to the size and type of the ship.

.6 Existing ships shall be fitted with additional self-contained breathingapparatus to replace, or make redundant, existing smoke helmet typebreathing apparatus where these form part of the minimum equipmentrequired (see MSC/Circ. 1085).

11. .1 Portable electric or pneumatic drill(see 5.1.15):

.1 in all ships of 1,000 gross tonnage and upwards- at least one drill.

12. .1 Portable exhaust fan, complete withsuction and discharge hoses (see5.1.16):

.1 in all ships of 500 gross tonnage and upwards, where machinery spacesof category A are provided with fixed gas fire-extinguishing systemsand are not otherwise equipped with efficient ventilation system neces-sary for the purpose of gas freeing- at least one fan;

.2 in other ships, where it is find necessary by the Register- one fan.

13. .1 Portable fire motor pump with suc-tion and discharge hoses (see 5.1.17):

.1 in ships not provided with fixed emergency fire pump (see 3.3.2.4)- at least one set.

14. .1 International shore connection (see5.1.18):

.1 in ships of 500 gross tonnage and upwards- at least one set.

15. Portable instruments for measuring the concentration of (see 5.1.20):

.1 flammable and toxic vapours andgases (as appropriate for the cargoesbeing carried):

.1 in ships carrying solid dangerous goods in bulk and MHB goods (see2.7.3.1.1 and IMSBC Code)- at least two instruments;

.2 in ro-ro ships and ships carrying motor vehicles with fuel in their tanksfor their own propulsion- at least one instrument;

.3 in tankers and combination carriers (≤ 60oC)– at least two instruments.In ships of less than 5,000 tdw but not less than 600 tdw- at least one instrument;

.4 in oil recovery ships- at least one instrument.

.2 oxygen: .1 in tankers and combination carriers (≤ 60oC)- at least two instruments.In ships of less than 5,000 tdw but not less than 600 tdw - at least one instrument;

.2 in ships carrying solid dangerous goods in bulk and MHB goods (see2.7.3.1.1 and IMSBC Code),- at least one instrument;

.3 in ro-ro ships and ships carrying motor vehicles with fuel in their tanksfor their own propulsion– at least one instrument


2009


16. .1 Water fog applicators (see 5.1.19): .1 in passenger ships carrying more than 36 passengers,in each machinery space of category A- at least two applicators;for each pair of breathing apparatus (see 5.1.14.2)- at least one applicator;

.2 in each special category space- at least three applicators:

.3 in ro-ro and vehicle spaces intended for the carriage of motor vehicleswith fuel in their tanks for their own propulsion- at least three applicators.

17. .1 Two-way portable VHF radiotele-phone apparatus:

in passenger ships (see 4.4.6)- one two-way portable radiotelephone apparatus for each member ofthe fire patrol.

18. .1 Emergency escape breathing devices- EEBDs (see 5.1.21 andMSC/Circ.1081): .1

In passenger ships and in cargo ships of 500 gross tonnage and up-wards:within accommodation spaces- four EEBDs for each main vertical zone and a total of two spareEEBDs, for passenger ships carrying more than 36 passengers;- two EEBDs for each main vertical zone and a total of two spare EEBDs,for passenger ships carrying not more than 36 passengers.Stairway enclosures which constitute individual main vertical zones andmain vertical zones in the fore or aft end of a ship which do not containspaces of categories (6), (7), (8) or (12) (see 2.2.4.2) are excluded.- three EEBDs, one being considered as spare, for cargo ships.

.2 within machinery spaces where crew are normally employed or may bepresent on a routine basis- one EEBD in the engine control room, if located within the machinery

space;- one EEBD in workshop areas. If there is, however, a direct access to an

escape way from the workshop, an EEBD is not required; andone EEBD on each deck or platform level near the escape ladder con-

stituting the second means of escape from the machinery space (theother means being an enclosed escape trunk or watertight door at thelower level of the space)

for machinery spaces of category A containing internal combustion ma-chinery used for main propulsion. Different number or location may berequired by the Register taking into consideration the layout and the di-mensions or the normal manning of the space.- one EEBD on each deck or platform level near the escape ladder con-

stituting the second means of escape from the spacefor machinery spaces of category A other than those containing internalcombustion machinery used for main propulsion.

.3 for other machinery spaces, the number and location of EEBDs shall bedetermined by the Register.


2009

5.2 SPARE PARTS AND TOOLS

5.2.1 All ships shall carry spare parts and tools.Passenger ships of 300 gross tonnage and up-

wards, other than ships of restricted service, and cargo ships of500 gross tonnage and upwards shall carry component sparesand tools for fixed fire detection and fire-extinguishing sys-tems fitted on board, the number of which shall be not lessthan that specified in the Table 5.2.1-1.

In all other ships provision shall be made forspare parts and tools specified in Table 5.2.1-1, items 1.1, 1.2,1.3, 1.5, 1.6, 9.1 and 9.2.

5.2.2 The spare parts and tools for fire detection andfire extinguishing systems shall be kept in the fire control sta-tions.

The spare parts and tools for pumps, compres-sors and motors, etc., shall be kept in the vicinity of the rele-vant machinery.

5.2.3 Spare parts shall be suitably marked.

Table 5.2.1.-1

ItemDescription of spares

and tools Number per ship

1 2 31 Water fire main system:

.1 a fire hoses of eachlength and diameterfitted complete withcouplings

1 pc of each size

.2 reduction couplings ofeach size fitted (if theship is provided withhydrants of variousdiameters)

2 pcs

.3 quick-acting hosecouplings

2 pcs ( of eachdiameter) In ships ofgross tonnage of4000 and upwards4 pcs (of eachdiameter fitted)

.4 rubber ring packingsfor couplings, nozzles,fire-extinguishers, etc.

5 per cent of the totalnumber fitted, butnot less than 10 pcs

.5 hose clamps 4 pcs ( for ships ofgross tonnage lessthan 300 1 pc foreach hose but notmore than 4)

.6 coupling wrenches(where nozzles arefitted by means of aspecial wrench)

2 pcs(of eachdiameter)

.7 fire hydrants 1 pc of each size

.8 fire hydrant handwheel 1 pc of each sizefitted

.9 valve disks withpacking rings for firehydrants

1 pc of each size fit-ted

Table 5.2.1-1 (continued)

1 2 32 Sprinkler system:

.1 sprinkler heads,assembly see 3.4.1.7

.2 wrenches for sprinklerheads (where heads arefitted by means of aspecial wrench)

1 pc for each section

.3 control panel andindicating unitscomponents

1 set, as per manu-facturer's recommen-dation

3 Pressure water-spraying,water screen and drenchingsystems:

.1 spray nozzles of vari-ous types and sizesfitted in each system

5 per cent of totalnumber of spraynozzles fitted (ofeach type)

.2 wrench for spray noz-zles (where nozzles arefitted by means of aspecial wrench)

1 pc of each size

4 Foam fire extinguishingsystem:

.1 foam hydrants 1 pc of each size

.2 foam applicators 1pc

.3 gauge glasses forstorage tank 1pc of each size

.4 rubber ring packings One set including1pc of each size fit-ted

5 Carbon dioxide systems:.1 cylinder valves, as-

sembly-for up to 50cylinders fitted 1 pc-for up to 100cylinders fitted 2 pcs-for more than 100cylinders fitted 3 pcs

.2 wrenches for cylindervalves and otherfittings

1 set for each storageroom

.3 plugs for closing pipesleading from cylindervalves, when cylindersare removed

25 per cent of thenumber of cylinders

.4 safety repture discs In accordance withthe number ofcylinders

.5 thrust bushes andwashers for safetydevices

10 per cent of thenumber of cylinders

.6 protective caps forcylinder valves

In accordance withthe number ofcylinders

.7 non return valves per cent of the totalnumber fitted


2009


1 2 3.8 discharge nozzles of

each type and size 2 pcs

.9 scale for weighingcylinders or carbon di-oxide level gauge

1 pc

6 Inert gas system:.1 control (sluice) valve

for discharge of inertgas into the protectedspace

1 pc

.2 components forautomatic control

1 set, as permanufacturersrecommendation

7 Halon systems:.1 spray nozzles of each

type and size fitted 1-2 pcs

.2 wrenches for spraynozzles 1 pc(of each size)

.3 components for safetyand pressure reducingvalves (springs, disks,packings etc.)

1 set

.4 level gauge or gaugeglass for halon storagetank

1 set

.5 halon 1301 containers,assembly (see3.11.2.3)

1 pc for each tencontainers, spareparts specified in 7.1,7.2, 7.3 and 7.4being not required

8 Dry powder system:.1 release arrangement

components for handhose lines andmonitors

1 set of each type

.2 nozzles of each typeand size 1 pc

.3 wrenches for valves,hand hose lines andnozzles and similar

1 set

9 Various components for allsystems:

.1 instruments andgauges (pressure andvacuum gauges,thermometers, etc.)

1 pc of each typeand size

.2 relevant packingmaterial 1 set

.3 fuses for automaticclosing of fire doorsand fire dampers

In acordance with thenumber of doors anddampers thus con-trolled

.4 spare parts for pumps,fans, compressors andmotors/engines servingfire-extinguishingsystems

See Rules, Part 7 -Machinery Installa-tion, Ch.5


1 2 3.5 tools and components

for remote controldevices

In accordance withmanfuacturer's rec-ommendation and asapproved by theRegister

.6 tools and componentsfor fire detection andfire alarm system

In accordance withmanufacturer's rec-ommendation and asapproved by theRegister

.7 flame arresters(inserts) of each typeand size fitted

1 set

.8 spare parts for electriccomponents of fire ex-tinguishing systems

In accordance withrequirements asspecified in Rules,Part 12 - ElectricalEquipment, 21


2009

ANNEX 1

MATERIALS USED INACCOMMODATION SPACES

MSC/CIRC. 1120

Table 1 – Passenger ships

Materials used in accommodation spaces as defined in regulations II-2/5.3 and 6.2Requirements for components in SOLAS chapter II-2

Non-combustible

material(5.3.1.1)

(5.3.1.2.1)

Calorificvalue

(5.3.2.2)

Equivalentvolume(5.3.2.3)

Low flamespread

(5.3.2.4)*

Smoke pro-duction, toxic

products(6.2)

Components

(A) (B) (C) (D) (E)1 moulding X2 wall panel (lining) X3 grounds and sup-

portsX

4 draft stops X5 insulation X6 insulation sur-

face**X

(5.3.2.4.1.2)7 decoration X8 painted surface**

orfabric or veneer**

--

X

X(5.3.2.4.1.2)

X(5.3.2.4.1.2)

9 painted surfaceorfabric or veneer

--

X

X

X

X(5.3.2.4.1.1)

X(5.3.2.4.1.1)

X

X

10 skirting board X

Notes:

* Exposed surfaces of corridors and stairway enclosures referred to in regulation II-2/5.3.2.4.1.1 include floor coverings.

** Where the wall panel is an integral part of the fire insulation in accordance withregulation II-2/9.2.2.3.3, these components shall be of non-combustible material.


2009

Tab

le 2

– C

argo

ship

s / M

etho

d IC

(1)

Vap

our

barr

iers

use

d on

pip

es f

or c

old

syst

ems

(see

UI

SC 1

02)

may

be

of c

ombu

stib

le m

ater

ials

pro

vidi

ng th

at th

eir

surf

ace

has

low

fla

me

spre

ad c

hara

cter

istic

s(R

eg. I

I-2/

5.3.

1.1)

.(2

) A

pplic

able

to p

aint

s, va

rnis

hes a

nd o

ther

fini

shes

(Reg

. II-

2/6.

2).

(3)

Onl

y in

cor

ridor

s and

stai

rway

enc

losu

res.

- R

egul

atio

n II

-2/6

.2 o

nly

appl

ies t

o ac

com

mod

atio

n sp

aces

and

con

trol s

tatio

ns a

s wel

l as s

tairw

ay e

nclo

sure

s (U

I SC

127

)-

As f

ar a

s win

dow

box

es c

onst

ruct

ion

is c

once

rned

, ref

eren

ce is

als

o to

be

mad

e to

MSC

/Circ

.917

and

MSC

/Circ

. 917

Add

.1.

Req

uire

men

ts fo

r com

pone

nts i

n SO

LAS

Ch.

II-2

Non

Com

-bu

stib

leM

ater

ial

(5.3

.1.2

.2.1

)

Non

Com

-bu

stib

leM

ater

ial

(5.3

.1.1

)

Low

fla-

me

spre

ad(5

.3.2

.4.2

)

Equi

va-

lent

Vo-

lum

e(5

.3.2

.3.1

)

Cal

ori-

fic v

alue

(5.3

.2.2

)

Smok

epr

oduc

-tio

n(6

.2)

Not

read

ilyig

nite

(6.3

)

Com

pone

nts

(A)

(B)

(C)

(D)

(E)

(F)

(G)

1M

ould

ing

X2

Pane

lX

3Pa

inte

d su

rfac

es o

r V

enee

ror

Fab

ric o

r Foi

lsX

XX

X

4Pa

inte

d su

rfac

es o

r V

enee

ror

Fab

ric o

r Foi

lsX

XX

X

5D

ecor

atio

nsX

X(2

)

6Pa

inte

d su

rfac

es o

r V

enee

ror

Fab

ric o

r Foi

lsX

XX

(2)

7Sk

irtin

g bo

ard

X8

Insu

latio

nX

(1)

9Su

rfac

es a

nd p

aint

s in

con

-ce

aled

or

inac

cess

ible

spa

-ce

sX

10D

raug

ht st

ops

X11

Gro

unds

and

supp

orts

XX

12Li

ning

X13

Prim

ary

deck

cov

erin

g 1s

tla

yer

XX

14Fl

oor f

inis

hing

X(3

)X

(3)

15W

indo

w b

oxX

16W

indo

w b

ox su

rfac

eX

(3)

XX

X(3

)

17W

indo

w

box

surf

ace

inco

ncea

led

or

inac

cess

ible

spac

esX

18C

eilin

g pa

nel

X


2009

Tab

le 3

– C

argo

ship

s / M

etho

ds II

C a

nd II

IC

(1) V

apou

r ba

rrie

rs u

sed

on p

ipes

for

col

d sy

stem

s (s

ee U

I SC

102

) m

ay b

e of

com

bust

ible

mat

eria

ls p

rovi

ding

that

thei

r su

rfac

e ha

s lo

w

flam

e sp

read

cha

ract

eris

tics

(Reg

. II-

2/5.

3.1.

1).

(2) W

here

fire

mat

eria

l is f

itted

on

non

com

bust

ible

bul

khea

ds, c

eilin

g an

d lin

ing

in a

ccom

mod

atio

n an

d se

rvic

e sp

aces

(Reg

. II-

2/5.

3.2.

2).

(3) T

o be

app

lied

to th

ose

acco

mm

odat

ion

and

serv

ice

spac

es b

ound

ed b

y no

n co

mbu

stib

le b

ulkh

eads

, cei

ling

and

linin

g (R

eg. I

I-2/

5.3.

2.3.

1).

(4) O

nly

in c

orrid

or a

nd st

airw

ay e

nclo

sure

s ser

ving

acc

omm

odat

ion

and

serv

ice

spac

es a

nd c

ontro

l sta

tions

(Reg

. II-

2/5.

3.1.

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2009

ANNEX 2

PETROLEUM PRODUCTS SUITABLEFOR CARRIAGE IN TANKERS (≤ 60oC)

1 Petroleum products suitable for carriage inTankers (≤ 60oC) are listed in Table 1-11.

Table 1-1

ASPHALT SOLUTIONS

1 Blending Stocks

2 Roofers Flux

3 Straight Run Residue

OILS

1 Clarified

2 Crude Oil

3 Mixtures containing crude oil

4 Diesel Oil

5 Fuel Oil No.4

6 Fuel Oil No.5

7 Fuel Oil No.6

8 Residual Fuel Oil

9 Road Oil

10 Transformer Oil

11 Arromatic Oil

12 Lubricating Oils and Blending Stocks

13 Mineral Oil

14 Motor Oil

15 Penetrating Oil

16 Spindle Oil

17 Turbine Oil

DISTILLATES

1 Straight Run

2 Flashed Feed Stocks

GAS OIL

1 Cracked

GASOLINE BLENDING STOCKS

1 Alkylates - fuel

2 Reformates

3 Polymer-fuel

Table 1-1 (continuation)

GASOLINES

1 Casinghead (natural)

2 Automotive

3 Aviation

4 Straight Run

5 Fuel Oil No.1 (Kerosene)

6 Fuel Oil No.1-D

7 Fuel Oil No.2

8 Fuel Oil No.2-D

JET FUELS

1 JP-1 (Kerosene)

2 JP-3

3 JP-4

4 JP-5 (Kerosene, heavy)

5 Turbo Fuel

6 Kerosene

7 Mineral Spirit

NAPHTHA4

1 Solvent

2 Petroleum

3 Heartcut Distillate Oi

GTL OILS2

1 Naptha

2 Kerosene

3 Diesel oil

4 Lubricating oils

Notes to Table 1-1:1. Special consideration shall be given to the

carriage of petroleum products not in-cluded in this list.

2. For the petroleum natural gas derived Gasto Liquids (GTL) oils see BLG.1/Circ. 23.

3. For list of other products (other than oilproducts) which may be carried in shipstype Tanker (< 60°C) see Rules, Part 27 –Chemical Tankers, Ch.18.

4. For Coal tar naphtha solvent and Naph-thalene (molten) see Rules, Part 27 –Chemical Tankers, Ch.17.


2009

ANNEX 3

LIQUID CARGOES (> 60OC)

1 Petroleum products (> 60oC) covered by the re-quirements of section 2.5 are listed in Table 1-1.

Table 1-1

ASPHALT SOLUTIONS

1 Blending Stocks

2 Roofers Flux

3 Straight Run Residue

OIL

1 Diesel Oil

2 Fuel Oil No. 4

3 Fuel Oil No. 5

4 Fuel Oil No. 6

5 Residual Fuel Oil

6 Road Oil

7 Transformer Oil

8 Aromatic Oil

9 Lubricating Oils and Blending Stocks

10 Motor Oil

11 Turbine Oil, cracked

GAS OIL

1 Gas Oil, cracked

GTL OILS

1 Diesel oil

2 Lubricating oil

Note to Table 1-1:1. List of petroleum products (> 60oC) in Ta-

ble 1-1 is not meant to be comprehensiveand may be amended.

2. For the petroleum natural gas derived Gasto Liquids (GTL) oils see BLG.1/Circ. 23.

3. For other liquids products having a firehazard similar to fire hazard of petroleumproducts (> 60oC) see Rules, Part 27 –Chemical Tankers, Ch.18.


2009

ANNEX 4

NON COMBUSTIBLE AND LOW FIRERISK CARGOES / CARGOES FOR

WHICH A FIXED GAS FIRE-EXTINGUISHING SYSTEM IS

INEFFECTIVE(SOLAS regulation II-2/10.7.1 and 10.7.2)

1 Solid bulk cargoes and other cargoes which arenon combustible or constitute a low fire risk and for which afixed gas fire-extinguishing system may be exempted arelisted in Table 1-1 (see MSC/Circ. 1146).

Table 1-1

Item Name/Description of cargo IMO class1 Cargoes including but not limited to those listed in regulation II-2/10.7.1.4:

1.1 Ore1.2 Coal (Coal and Brown Coal Briquetes) MHB1.3 Grain1.4 Unseasoned timber2 Cargoes listed in the IMSBC Code

2.1 All cargoes not categorized into group B in the IMSBC Code2.2 The following cargoes categorized into group B in the IMSBC Code

2.2.1 Aluminium smelting by-products, UN 3170 4.32.2.2 Aluminium ferrosilicon powder (including briquettes), UN 1395 4.32.2.3 Aluminium silicon powder, uncoated UN 1398 4.32.2.4 Calcined pyrites (Pyritic ash) MHB2.2.5 Direct reduced iron, briquettes hot moulded MHB2.2.6 Ferrophosphorus (including briquettes) MHB2.2.7 Ferrosilicon, with more than 30% but less than 90% silicon

(including briquettes), UN 14084.3

2.2.8 Ferrosilicon, with 25% to 30% silicon, or 90% or more silicon(including briquettes)

MHB

2.2.9 Fluorspar (calcium floride) MHB2.2.10 Lime (unslaked) MHB2.2.11 Magnesia (unslaked) MHB2.2.12 Peat moss MHB2.2.13 Petroleum coke1 MHB2.2.14 Pitch prill MHB2.2.15 Radioactive Material, Low Specific Activity Material (LSA-1), UN 2912 72.2.16 Radioactive Material, Surface Contaminated Object(s) (SCO-1), 2913 72.2.17 Silicomanganese MHB2.2.18 Sulphur (lump or coarse grained powder), UN 1350 4.12.2.19 Vanadium ore MHB2.2.20 Woodchips, with moisture content of 15% or more MHB2.2.21 Wood pulp pellets, with moisture content of 15% or more MHB2.2.22 Zinc ashes, UN 1435 4.3

Notes to Table 1-1:.1 When loaded and transported under the provisions of the IMSBC Code..2 Generally, Register may impose any additional conditions when granting exemptions under the provisions of

Note 4.3 to Table 3.1.2-1.


2009

2 Solid bulk cargoes for which a fixed gas fire-extinguishing system is ineffective and for which a fire-extinguishing system giving equivalent protection shall beavailable are listed in Table 2-1 (see MSC/Circ. 1146).

Table 2-1

Item Name/Description of cargo IMO class

1 The following cargoes categorized into group B of the IMSBC Code1.1 Aluminium nitrate UN 1438 5.11.2 Ammonium nitrate UN 1942 5.11.3 Ammonium nitrate based fertilizers, UN 2067 5.11.4 Ammonium nitrate based fertilizers, UN 2071 91.5 Barium nitrate, UN 1446 5.11.6 Calcium nitrate, UN 1454 5.11.7 Lead nitrate, UN 1469 5.11.8 Magnesium nitrate, UN 1474 5.11.9 Potassium nitrate, UN 1486 5.11.10 Sodium nitrate, UN 1498 5.11.11 Sodium nitrate and potassium nitrate, mixture, UN 1499 5.1

Note to Table 2-1:1. The Register shall take account of the provisions of 2.7.2.1.1 when determining suitable requirements for an

equivalent fire-extinguishing system.


2009

ANNEX 5

SYSTEMS, APPLIANCES ANDEXTINGUISHERS IN MACHINERY

SPACES

1. The unified interpretations of SOLAS chapter II-2 (see MSC/Circ. 1120) regarding the number of systems, ap-pliances and extinguishers required by Reg. 10.5.1 and 10.5.2are shown in Table 1-1.

Table 1-1

System appliances & extinguishers

Fixed fireextinguishing

system

Portable foamapplicator*1

Portable foamextinguishers

Add’l Portablefoam

extinguishers

135 l foamextinguisher

45 l foamextinguishers

*2Sand boxes*3

SOLAS, Ch.II-2, paragraph:Category A

Machinery spaces10.5.1.1,10.5.2.1

10.5.1.2.1,10.5.2.2.1

10.5.1.2.2 10.5.2.2.2 10.5.1.2.2 10.5.2.2.2 10.5.1.2.2

Boiler room containing:Oil-fired boilers

1 1 2N N/A 1*4 - NOil-fired boilers and oil fu-el units 1 1 2N + 2 N/A 1*4 - N

Engine room containing:Oil fuel units only

1 - 2 N/A - - -Internal combustionmachinery 1 1 X - Y -

Internal combustionmachinery and oil fuel u-nits

1 1 X - Y -

Combined engine/boiler room containing:Internal combustionmachinery, oil fired boilersand oil fuel units

1 1 (2N +2) or X, whichever isgreater

1*4 Y*5 N

N = number of firing spaces.N/A = not applicable.“2N” means that two extinguishers are to be located in each firing space.X = sufficient number, minimum two in each space, so located that there are at least one portable fire extinguisher within 10 m

walking distance from any point.Y = sufficient number to enable foam to be directed onto any part of the fuel lubricating oil pressure systems, gearing and other

fire hazard.

Notes:*1. May be located at outside of the entrance to the room.*2. May be arranged outside of the space concerned for smaller spaces of cargo ships.*3. The amount of sand shall be at least 0.1 m3.*4. Not required for such spaces in cargo ships wherein all boilers contained therein are for domestic services and are less than

175 kW.*5. In case of machinery spaces containing both boilers and internal combustion engines (case not explicitly considered in

regulation 10.5) regulation 10.5.1 and 10.5.2 shall apply, with the exception that one of the foam fire-extinguishers of atleast 45 l capacity or equivalent (required by regulation 10.5.2.2.2) may be omitted on the condition that the 135 l extin-guisher (required by regulation 10.5.1.2.2) can protect efficiently and readily the area covered by 45 l extinguisher.

*6. Oil fired machinery other than boilers such as fired inert gas generators, incinerators and waste disposal units shall be con-sidered the same as boilers insofar as the required number and type of fire fighting appliances are concerned.


2009

APPENDIX 1

FIRE SAFETY MEASURES FOREXISTING PASSENGER SHIPS (RES.

MSC.24(60))

1. Existing passenger ships, carrying more than36 passengers, when undergoing repairs, al-terations, modifications and outfitting relatedthereto

1.1 Existing passenger ships, intended for interna-tional voyage and restricted service 5 carrying more than 36passengers, when undergoing repairs, alterations, modifica-tions and outfitting related thereto, shall comply with the fol-lowing requirements:

.1 all materials introduced to these ships shallcomply with the requirements with regardto material applicable to such ships as pre-scribed in this part of the Rules.

.2 all repairs, alterations, modifications andoutfitting related thereto involving the re-placement of material of 50 tonnes orabove, other than that required in section 2for existing ships, shall comply with therequirements applicable to such ships asprescribed in this Part of the Rules.

2. Existing passenger ships carrying more than36 passengers, constructed before 1st October1994

2.1 Existing passenger ships, intended for interna-tional voyage and carrying more than 36 passengers, the keelsof which are laid or which were at a similar stage of construc-tion before 1st October 1994 shall comply with the following:

− Not later than 1st October 1994.1 Plans and booklets as required in section

1.4 shall provide, in addition, the informa-tion prescribed below and shall be avail-able at all times (resolution A.756(18) ):.1.1 ship's keel laying date and applica-

tion of the SOLAS Conventions andamendments;

.1.2 original method (I, II, III with orwithout sprinklers, etc.,) of firesafety construction, as applicable;

.1.3 where more than one method or acombination of methods are used indifferent locations of the ship, thisshall be specified;

.1.4 description of additional fire safetymeasures, if any, which are applied;

.1.5 dates and description of any modifi-cations to the ship which in any wayaltered its fire safety.

.2 Each member of the fire patrol shall beprovided with a two-way portable VHFradiotelephone apparatus.

.3 Water fog applicators (see 5.1.19) shall beprovided as follows:

.3.1 in each machinery space of categoryA, at least two water fog applicators;

.3.2 for each pair of breathing apparatus(see 5.1.14.2), one water fog appli-cator which shall be stored adjacentto such apparatus;

.3.3 in each special category space, atleast three water fog applicators.

.4 Portable foam applicators (see 5.1.7) shallbe provided as follows:.4.1 in each machinery space of category

A and each boiler room, at least oneportable foam applicator unit;

.4.2 in each special category space, atleast two portable foam applicatorunits.

.5 All hose nozzles provided (see 5.1.5) shallbe of an approved dual-purpose type (i.e.spray/jet type) incorporating a shut-off.

.6 Fireman's outfit (see 5.1.14):.6.1 at least two sets of spare charges

shall be provided for each breathingapparatus;

.6.2 all air cylinders for breathing appa-ratus shall be interchangeable;

.6.3 two additional fireman's outfits shallbe provided for each main verticalzone;

.6.4 at least two fireman's outfits shall bestored in each main vertical zone.

− Not later than 1st October 1997.1 All accommodation and service spaces,

stairway enclosures and corridors shall beequipped with a smoke detection andalarm system of an approved type andcomplying with the requirements as speci-fied in 4.2.1 and 4.2.2. Such system neednot be fitted in private bathrooms, andspaces having little or no fire risk such asvoids and similar spaces.Detectors operated by heat instead ofsmoke shall be installed in galleys.

.2 Hinged fire doors in stairway enclosures,main vertical zone bulkheads and galleyboundaries, which are normally kept openshall be self-closing and be capable of re-lease from a central control station andfrom a position at the door.

.3 A panel shall be placed in a continuouslymanned central control station to indicatewhether the fire doors on stairway enclo-sures, main vertical zone bulkheads andgalley boundaries are closed.

.4 Exhaust ducts from galley ranges wheregrease or fat is likely to accumulate andwhich pass through accommodation spacesor spaces containing combustible materialsshall be constructed of "A" class divisions.Each galley range exhaust duct shall befitted with:.4.1 a grease trap readily removable for

cleaning, unless an alternative greaseremoval process is fitted;


2009

.4.2 a fire damper located in the lowerend of the duct;

.4.3 arrangements operable from withinthe galley for shutting off the ex-haust fans;

.4.4 fixed means for extinguishing a firewithin the duct; and

.4.5 suitably located hatches for inspec-tion and cleaning.

.5 Only public toilets, lockers of non-combustible materials providing storagefor safety equipment and open informationcounters may be located within the stair-way enclosure boundaries. Other existingspaces within the stairway enclosure:.5.1 shall be emptied, permanently closed

and disconnected from the electricalsystem; or

.5.2 shall be separated from the stairwayenclosure by the provision of "A"class division in accordance with2.2.4.2. Such spaces may have directaccess to stairway enclosures by theprovision of "A" class doors in ac-cordance with 2.2.4.2, and subject toa sprinkler system being provided inthese spaces. However, cabins shallnot directly open into the stairwayenclosure.

.6 Spaces other than public spaces, corridors,public toilets, special category spaces,other stairways serving as means of escapeto the lifeboat and liferaft embarcationdeck from passenger and crew spaces andfrom spaces in which the crew is normalyemployed, open deck spaces and spacesspecified in 5.2 are not permitted to havedirect access to stairway enclosures.

.7 Existing machinery spaces of category(10), see 2.2.4.1, and existing back officesfor information counters, which open di-rectly into the stairway enclosure may beretained, provided that they are protectedby smoke detectors and that back officesfor information counters contain only fur-niture of restricted fire risk.

.8 In addition to the emergency lighting re-quired in Rules, Part 12 - ElectricalEquipment, 19.1.2 the means of escape in-cluding stairways and exits shall bemarked, at all points of the escape routeincluding angles and intersections, bylighting or photoluminescent strip indica-tors placed not more than 0.3 m above thedeck. The marking must enable passengersto identify all routes of escape and readilyidentify the escape exits. If electric illumi-nation is used, it shall be supplied by theemergency source of power and it shall beso arranged that the failure of any singlelight, or cut in a lighting strip, will not re-sult in the marking being ineffective. Ad-ditionally, all escape route signs and fireequipment location markings shall be of

photoluminescent material. The Registershall ensure that such lighting of photolu-minescent equipment has been evaluated,tested and applied in accordance with theguidelines developed by the InternationalMaritime Organization (resolutionA.752(18) ).

.9 A general emergency alarm system shallbe provided. The alarm shall be audiblethroughout all the accommodation andnormal crew working spaces and opendecks, and its sound pressure level shallcomply with the standard developed by theInternational Maritime Organization(resolution A.830(19)). The alarm shallcontinue to function after it has been trig-gered until it is manually turned off or istemporarily interrupted by a message onthe public address system.

.10 A public address system or other effectivemeans of communication shall be availableand audible throughout the accommoda-tion, public and service spaces, controlstations and open decks.

.11 Furniture in stairway enclosures shall belimited to seating. It shall be fixed, limitedto six seats on each deck in each stairwayenclosure, be of restricted fire risk, andshall not restrict the passenger escaperoute. The Register may permit additionalseating in the main reception area withinstairway enclosures, if it is fixed, non-combustible, and does not restrict the pas-senger escape route. Furniture shall not bepermitted in passenger and crew corridorsforming escape routes in cabin areas. Inaddition to the above, lockers of non-combustible material, providing storagefor safety equipment required by regula-tions, may be permitted.

− Not later than 1st October 2000.1 All stairways in accommodation and serv-

ice spaces shall be of steel frame construc-tion except where the Register sanctionsthe use of other equivalent material, andshall be within enclosures formed of "A"class divisions, with positive means of clo-sure at all openings, except that:.1.1 a stairway connecting only two

decks need not be enclosed, providedthe integrity of the deck is main-tained by proper bulkheads or doorsin one 'tweendeck space. When astairway is closed in one 'tweendeckspace, the stairway enclosure shallbe protected in accordance with theTable 2.2.4.2-2;

.1.2 stairways may be fitted in the openin a public space, provided they liewholly within such public space.

.2 Machinery spaces of category A shall befitted with a fixed fire-extinguishing sys-tem complying with the requirementsspecified in 3.1.2.


2009

.3 Ventilation ducts passing through divi-sions between main vertical zones shall beequipped with a fail-safe automatic closingfire damper, which shall also be capable ofbeing manually closed from each side ofthe division, In addition, fail-safe auto-matic closing fire dampers with manualoperation from within the enclosure shallbe fitted to all ventilation ducts servingboth accommodation and service spacesand stairway enclosures where they piercesuch enclosures. Ventilation ducts passingthrough a main fire zone division withoutserving spaces on both sides or passingthrough a stairway enclosure withoutserving that enclosure need not be fittedwith dampers provided that the ducts areconstructed and insulated to "A-60" stan-dard and have no openings within thestairway enclosure or in the trunk on theside which is not directly served.

.4 Special category spaces and ro-ro cargospaces shall comply with all relevant re-quirements of the Rules with regard to thefire protection, fixed fire extinguishingsystem, patrol system and fire detectionsystem, fire-extinguishing equipment,ventilation system, scuppers, bilge pump-ing and drainage and precautions againstignition of flammable vapours.

.5 All fire doors in stairway enclosures, mainvertical zone bulkheads and galleyboundaries which are normally kept openshall be capable of release from a centralcontrol station and from a position at thedoor.

2.2 Existing passenger ships, intended for interna-tional voyage and carrying more than 36 passengers, the keelsof which are laid or which were at a similar stage of construc-tion before 1st October 1994, not complying with all the re-quirements of SOLAS 74 for new ships (or part H of SOLAS60) shall, in addition to the requirements specified in 2.1,comply with the following:

− Not later than 1st October 1997.1 Smoke detectors connected to the smoke

detection and alarm system shall also befitted above ceilings in stairways and cor-ridors in the areas where ceilings are ofcombustible construction.

.2 Accommodation and service spaces, stair-way enclosures and corridors shall be fit-ted with an automatic sprinkler, fire detec-tion and fire alarm system complying withthe requirements as specified in 3.3 or theguidelines developed by the InternationalMaritime Organization (resolution A.800(19) ) for an approved equivalent sprinklersystem. A sprinkler system need not befitted in private bathrooms and spaceshaving little or no fire risk such as voidsand similar spaces.

− Not later than 1st October 2010

.1 The ships shall comply with all require-ments of Chapter II-2 of SOLAS 74 appli-cable to ships constructed on or after 25thMay 1980, or with the Requirements ofPart H of SOLAS 60.

2.3 Existing passenger ships, intended for interna-tional voyage and carrying more than 36 passengers, the keelsof which are laid or which were at a similar stage of construc-tion before 1st October 1994 complying with all the require-ments of SOLAS 74 for new ships (or part H of SOLAS 60)shall, in addition to the requirements specified in 2.1, complywith the following:

− Not later than 1st October 2005, or 15 years after thedate of construction (whichever is later)

.1 Accomodation and service spaces, stair-way enclosures and corridors shall be fit-ted with an automatic sprinkler, fire detec-tion and fire alarm system complying withthe requirements as specified in 3.4 or theguidelines developed by the InternationalMaritime Organization (resolutionA.800(19) ) for an approved equivalentsprinkler system. A sprinkler system neednot be fitted in private bathrooms andspaces having little or no fire risk such asvoids and similar spaces.