OISD’S CHECKLIST FOR PRE-COMMISSIONING SAFETY AUDIT OF … · Page 1 of 24 OISD’S CHECKLIST FOR PRE-COMMISSIONING SAFETY AUDIT OF CROSS COUNTRY PIPELINES GENERAL INFORMATION The

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OISD’S CHECKLIST FOR PRE-COMMISSIONING SAFETY AUDIT OF CROSS COUNTRY PIPELINES

GENERAL INFORMATION

The information for 1.0 & 2.0 to be provided for complete Pipeline. Under subsequent items, each of location / installation of cross country pipeline be covered. Separate sheets may be used for such purpose. CHECK LIST IS FILLED UP FOR ----- PART COMMISSIONING / FULL COMMISSIONING APPROVAL OF THE PIPELINE. BY OISD S.No Item Observation Remarks 1.0 GENERAL INFORMATION

a) Name of the Pipeline : b) Services ( Crude / product / LPG

/ NG) c) Design / OISD code followed : d) Design capacity / flow rate

(section wise) e) Length of the Pipeline in kms :

(i) Section wise in case different diameter pipe used

(ii) In case of N. Gas- Class location wise length

f) Size/Sizes of Pipeline along with length of each section. Out .Dia / Wall Thickness / Grade (i) Mainline section wise (ii) River Crossing (iii) Un cased crossing (iv) Cased crossing

g) Is the pipeline designed for scrapper / intelligent pigging?

h) No. of intermediate pumping stations with location name & chainages

i) No. of intermediate pigging

stations with location name chainages

j) No. of Intermediate Tap of /f delivery stations with location name & chainage.

k) No. of CP cum Repeater or CP stations with chainages

l) No. & location of isolation Valve(s) with chainages (i) Hand Operated valves (ii) Remote Operated valves

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m) No. of water bodies crossings with Chainages (i) Name of River (ii) Pond / Lake crossings (iii) Canal crossings (iv) Marshy land / creek

n) No. of cased crossings Railway o) No of Road crossings(NH & SH)

i) Cased ii) Non cased

(Crossing length & chainage to be given in annexure) p) No. of suspended crossings l) Width of ROW and no of pipelines existing in the same ROW n) Other information

2.0 CROSS COUNTRY PIPELINE DETAILS 1 Design pressure of the pipeline.

In Kg / Cm2 Whether surge analysis carried out for the pipeline? If so Maximum surge pressure?

2 Maximum allowable operating pressure of the pipeline , and normal Operating Pressure corresponding to design and present throughput in Kg/cm2

3 Corrosion allowance for the pipeline . In mm

4 % of Mainline joints inspected by radiography.

5 Whether the pipeline meets various separation distance requirements in the ROW as per OISD standards

6 Whether holiday detection was carried before backfilling & repairs and Records available? Record of Pipeline cover available?

7 Whether the pipeline has been hydrostatically tested. Hydrotest Pressure In Kg / Cm2 Period of Hold Details of sections with test pressures to be provided. Records to be made available.

8 Type of Sectionalizing Valves used

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on the pipeline. 9 Whether the pigging facility has been

installed and the pipeline is piggable by scraper pig.

10 Whether the gauging pig was passed through the pipeline to prove its internal diameter and was it satisfactory. Detail Records available?

11 Whether EGP was carried out for the pipeline. Details to be provided. Date of EGP, Findings of EGP, Dent size and no (if any) or other defects and date of repair and records there to?

12 Whether the pipe and welding book has been prepared and made available

13 Whether anti surge devices have been installed, if applicable and details thereof.

14 Whether the pipeline has been cleaned and swabbed.

15 Whether pipeline has been preserved after hydrotesting? If so medium of preservation?

16 Whether adequate water and product is available for commissioning.

17 Whether mechanical completion report for the pipeline is available.

18 Whether ROU restoration is completed and records available ?

- NOC from NH / SH/ Railways and other statutory authorities obtained ?

19 Whether following approvals have been obtained for pipeline before construction?

- PESO (CCOE) approval for laying of pipeline / construction of facilities( Ref no and Date.

- DGMS approval for laying of pipeline / construction of facilities ( Ref. no & Date)

- In case of off-shore pipeline CRZ Clearance?

- Environmental clearance for the project ( No & date)

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- Sate Pollution control Board – consent to establish

- Registration of establishment from Central / State Govt. labour commissioner under Contract Labour ( Regulation and Abolition ) Act’1970.

- Permission from Irrigation / PWD authority / NHA etc.

20 Whether commissioning procedure is available and all requirement indicated therein are available including pig cups / mandrels. Planning for Disposal of water made?

21 Whether following Clearances obtained before commissioning?

- Commissioning clearances from PESO(CCOE).

- CCOE License as required. - Consent for operation from

state pollution control board for Air and Water.

- Clearance for frequency allocation for operation of HF / VHF system from Ministry of Communication & IT Dept of Telecom.

- Factory License as required..

22 Whether Line Patrol Man Deployed ? KM of pipeline covered per Patrolman?

23 Off-site DMP prepared and submitted to respective DMs / DCs

24 Whether pre-tested Insurance Stock pipes earmarked and kept separately.?Indicate Details of size and length.

25 Whether leak clamps are available at Maintenance base? No. of Clamps, Size and Location to be indicated?

26 Whether Emergency tools and tackles identified and available at the stations? Attach a list of tools and tackles.

3.0 COATING AND CATHODIC PROTECTION DETAILS 1 Type of External Coating used in the

Pipeline (CTE / 3LPE/ FBE / Other)

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Coating Thickness in mm 2 Frequency of pill Test carried out at

the field and at the coating plant? Minimum & maximum pill test data For Plant At the Field

3 Whether the pipeline is adequately protected cathodically as per the requirements of OISD standard. (Check availability of design parameters). Indicate TRU details / current capacity. Presently protected by TCP ( Temporary Cathodic Protection) / PCP ( Permanent Cathodic Protection) Expected date of Comm. Of PCP in case the pipeline is presently protected by TCP.

4 No. of TLP ( Test Lead Points / Test stations) installed along the pipeline Route

5 Post Construction Coating Survey carried out or not? No. of Defects detected? No. of repairs made?

6 Whether Interference survey for the pipeline has been carried out carried out and mitigation measures taken. Location / Chainage/ Type of Mitigation measures taken.

7 Whether IJs have been provided at all transitions of underground piping to aboveground piping and whether the integrity of IJs have been checked.

8 Whether electrical Surge diverter provided across IJs? Whether zinc grounding cell / kirk cell / solid state device have been provided across IJs on the protected side? Whether Earthing provided across IJ on the unprotected side?

9 Whether corrosion coupons have been installed for internal corrosion monitoring ?

10 Whether all cased crossings have been checked and are free from any

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electrical shorting . Records to be made available?

11 Whether PSP readings for entire pipeline taken? Date of Readings PSP Profile document to be made available.

12 Whether Natural PSP of the Pipeline has been taken? Date of reading? Record to be made available

13 Whether ON PSP readings taken after commissioning of PCP? Date of Reading? Record to be made available?

14 Whether OFF PSP readings taken after commissioning of PCP? Date of Reading? Record to be made available?

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4.0 LOCATION DETAILS : FOR EACH STATION SEPARATE CHECKLIST TO

BE FILLED. IN CASE ANY PARTICULAR ITEM IS NOT APPLICABLE PLEASE INDICATE “ NA” .

ORIGINATING PUMP / COMPRESSOR / INTERMEDIATE DELIVERY OR TAP OFF / INTERMEDIATE PUMP OR COMPRESSOR / INTERMEDIATE PUMP OR COMPRESSOR CUM DELIVERY / TERMINAL STATION :

4.1 Name of location and Chainage LAND a) Total land area in m2 b) Licensed Area in m2 c) De licensed Area in m2

4..2 NEAREST FACILITIES a) Fire station b) Police Station c) Hospital / Medical Facilities d) Major Industry (if any)

4..3 LAYOUT/POWER/ COMMUNICATION

1

Does the plant layout conform to OISD-STD-118 / 141/ 214 / 226 and the inter-unit / intra-unit distances are fully met? Annexure-1 to be furnished highlighting the inter distances vis-à-vis OISD requirements.

2 Whether proper arrangement of roads is provided around the pump house & manifold area for movement of fire fighting vehicles

3 Power System Details: i) Transformer Rating & Type ii) HT Breaker Type & Rating iii) DG Set’s Details

4 Details of Booster / Main Prime movers of Pumps / Compressors

(a) Type of prime mover ( engine/ Motor / Gas Turbine)

(b) Power rating (c) Type of Fuel for Engine/ GT (d) VFD(if any) provided (e) Motor / Engine / GT safety

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protection system. (f) Specific fuel / power

consumption

5 Details of PUMPs / COMPRESSORS

(a) Diff. Head (b) Shut off Head (c) Flow rate - maximum (d) Minimum Continuous flow (e) Pump safety protection

instrumentation (f) Power in HP / KW

6 Details of above ground and under grounds storage capacity at the stations product class wise.

7 Communication system details (i) Telephones (ii) PA/Paging (iii) VHF (iv) Walkie/Talkie (v) Hot Line (vi) VCS (vii) CCTV

4..4 STATUTORY APPROVALS / DOCUMENTATION 1 Whether following approvals have

been obtained for Stations before construction.

- PESO (CCOE) approval for construction of facilities( Ref no and Date). Copy of the approved layout to be attached.

- DGMS approval for laying of pipeline / construction of facilities ( Ref. no & Date)



- Registration of establishment from Central / State Govt. labour commissioner under Contract Labour ( Regulation and Abolition ) Act’1970.

2 Whether following licenses / approvals are available before commissioning? - CCOE License No. , Date , validity. - Is there any change in layout with

respect approved CCOE layout?

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- NOC from District Magistrate / District Collector in case CCOE License is not applicable.

- Factory License / DGMS approval - Consent for Operation from State

Pollution Control Board for:- i) Air ii) Water - HF / VHF license & validity - Govt. Notification for protected area

declaration - Clearance from CEA / State

Electrical Inspectorate. - DG Set Installation approval - Any other applicable statutory

license / approval

3 Whether following Licenses manuals / standards / documents are available at site. a) Copy of all Statutory Licenses b) Copy of approved as built CCOE

Layout clearly marking fire water networks, monitors, hydrants etc.

c) Petroleum Acts & Rules. d) The Petroleum pipelines

(acquisition of right of users in land) Act 1962, amended in 1972

e) EPA 1986 and rules f) Mines / Factory Act / Rules g) Indian Electricity Act / Rules h) Weights & Measure Act/Rules i) Operation manual including

Start-up, Shut-down and Emergency handling procedures.

j) Maintenance Manual k) Safety manual l) OISD Standards and other

documents as specified in OISD STD- 141 / 214 /226

m) Codes to which the pipeline has been designed, constructed and maintained.

n) Equipment Manufacturer's Manual for all equipment.

o) Calibration chart of storage tanks / sump tank

p) Land ownership documents including NA conversion.

q) Approved as built P&IDs and facility drawings.

r) Latest approved design basis. s) Documents related to

electrical relay setting and testing.

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t) ON SITE and OFF-SITE approved DMP.

u) Material Safety Data Sheet 4.5 FIRE PROTECTION

SYSTEM/FACILITIES / PLAN

1 Whether Fire Protection System / facility comply with OISD-STD-117/ 141/ 214 / 226. Deviation, if any, to be given. Attach a copy of fire water calculation as per the requirements of relevant OISD- Standard as Annexure-2.

2 Whether fire fighting equipments / Personnel Protective Equipment (PPE) are provided as per the requirements of OISD-STD-117 / 141/ 214 / 216. Attach a list of such equipment available at site vis-à-vis OISD requirement as Annexure-3. Please indicate area of each facility.

3 Whether fire hydrant system has been designed as per OISD-STD-117. Mention no. of Monitors, Hydrants etc.

4 Whether Clean Agent System provided for Control Room ? If so whether the system has been checked? Records to be made available.

5 Whether HAZOP Risk analysis of the facility have been carried out & the recommendations implemented.

6 Whether On-site Disaster Management Plan prepared and approved by Factory Inspector ? Is the DMP submitted to local DM / DCs for incorporation in their DMP?

7 Whether list of contact persons has been displayed with telephone nos.!

8 Indicate the details of security arrangement of the location.

9 Check availability of Visitor / attendance Registers at the gate.

10 Check availability of metal detector / mirror trolley.

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4.6 PUMP / COMPRESSOR / TAPP OFF/ TERMINAL AREA 1 Whether oil water separator system and

plant surface drainage system is properly separated.

2 Whether the drains/vents/sample points have isolation valves and are provided with caps!

3 Whether newly installed prime movers ( Engine / Motors / GTs) have been run on no load test. No of Hours run? Test report to be made available

4 Whether newly installed pumps / Compressors have been inspected for alignment, flushing, direction of rotation, strain due to piping, tightness of foundation bolts, lubrication, leakage from joints, strainer cleanliness, etc., as per OISD-STD-119 / 120 before commissioning and records maintained.

5 For newly installed compressors ( for gas pipelines ) and pumps (for liquid pipelines), whether following have been checked: a) Working condition of

- Vibration Monitoring System - Anti Surge Device - Speed Control System - Shut Down System - Lubrication System

b) Working condition of various alarms /

trips and signaling systems. c) Cleanliness of suction lube oil strainer d) Depressurising & venting system of the

compressor. e) Whether the compressor has nitrogen

inerting system. if so, is it functional.

4.7 STATION PIPING 1 Whether station piping has been provided

as per the latest approved P&IDs. Indicate drawing numbers. Attach a as built copy of drawings?

2 Whether mechanical completion certificate for the station is available?

4 Whether pipe supports (sliding / spring supports) guides and anchors are in order.

5 Does the piping slope towards drain

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points/knockout pots. 7 Whether all the flange connections has

been checked for tightness and length of bolts are adequate. All short bolting have been checked?

8 Whether pipelines have been painted & separate colour has been provided for different services as per Industry practice or colour code of pipelines IS: 2379-1990”.

9 Whether flow direction has been marked on station piping and equipment .

10 Whether proper direction for check valves and flow meters has been ensured.

11 Whether all equipment /valves have been numbered ? Asset Register Prepared.

12 Whether adequate crossovers for crossing and platforms to operate valves have been provided with safety hand rails?

13 Whether check for scraper signal has been done.

14 Whether access to all operating equipments including vessels, valves, sump pump, scraper barrel is adequate.

15 Whether CI dosing facilities with adequate stock is available for dosing in water and product.

16 Whether proper arrangement has been made for drainage and disposal of the water during commissioning.

17 Whether calibration charts for all storage tanks / sump tank are available. Records to be made available ?

18 Whether hydrotest of station piping is carried out. Indicate following data High Pr. Section / Low Pr section

(a) Design Pressure (b) Operating Pressure (c) Hydrotest pressure (d) Period of Hold

19 Whether air cleaning / card board cleaning is done.

20 Whether pneumatic testing / leak test for flanges/ tapings have been completed and record maintained.

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21 Whether alignment of motor with main pump and suction / discharge piping is done and acceptable to the vendor / owner.

4.8 ELECTRICAL SYSTEMS & SUB-STATION & CP

1 Whether all equipment including motors, fittings, lighting etc. are as per hazard area classification (OISD-STD-113).

2 Whether piping and static / rotating equipments connected with the earth grid?

3 Whether the motors are provided with proper double earthing in line with Indian Electricity Rules (IER)?

4 Do earthing system and values conform to clause no. 4.2 of OISD-STD-173?

5 Whether earthing grid drawing is available?

6 Latest reading of Earthpit resistance with or without grid available? Date of such readings.

7 Whether separate grid for instrumentation and telecommunication system made?

8 Whether unused opening in trenches and substation covered?

9 Whether clear spacing is provided in front and rear of the main panels in line with IER requirements?

10 Whether Cable entry / exit conduit properlysealed? Rodent repeller installed belowfalse flooring?

11 Whether proper ventilation is provided forthe room for battery charging and whetherwalls and floors are acid proof. Type of Battery used ?

12 Whether emergency lights are provided insub-station and switch room, DG set room.

13 Whether tags for proper identification ofcables and switches is provided at Sub-Station / control room. Whether Intermediate cable tags have been provided? If so at what Interval?

14 Whether the electrical siren can be operated when AC supply is not available .

15 Whether all protective relays of Incomer,

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Transformer and PCC/MCC panels testedand records documented .

16 Whether Station piping is protected by CP system? If so reading of ON / OFF PSP value.

17 Whether the CP system has reliable power supply.

18 Whether as built drawings for HT/LT/Pumps etc. are available. Indicate drawing numbers.

19 Whether smoke detectors are installed in Elect. Sub station?

20 Whether fire alarm system is provided in Control room / Sub station etc. and details available in control room.

21 Whether Electrical Jumpers have beenprovided across all flanges in LPG andATF services?

4.9 SAFETY DEVICES

1 Whether safety inter-locks have been provided as per OISD requirements, tested and documented! Major safety interlocks be mentioned. Indicate alarms and trip details.

2 Whether the relief valves have been set at 10% over normal operating pressure. Indicate Operating Pressure and set pressure in Kg / Cm2.

3 Whether thermal safety valves have been installed directly on the protecting equipments / on the connected pipings with lock open isolation valve. Indicate set pressure of the thermal safety valves?

4 Whether the thermal safety valves have been calibrated and kept locked open. Calibration certificate to be made available ?

5 Whether tag nos. are displayed clearly on thermal safety valve body / Pressure gauges / flow meters / PTs/ TTs etc?

6 Whether SCADA and APPS System is available. Data of SCADA including server details / RTUs /APPS system / Whether Leak detection to be provided? If so, threshold limit of the leak detection system to be indicated.

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7 Whether leak detection has been checked and meet the design requirement at actual site condition?

8 Whether indication of three phase power is available in control room.

9 Whether factory test data for all instrumentation system is available

10 Whether Instrumentation control loop checking have been completed?

11 MOVs which are on remote operation have been functionally checked for opening and closing operation?

12 Whether ESD system has been operated and checked for closure / shut down of the facilities as envisaged and record maintained.

13 Whether operation Logic (as envisaged in design) has been functionally checked ?

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5.0 INTERMIDIATE PIGGING STATION / LOOP LINE TERMINAL 5.1 Name of location and Chainage

LAND a) Total land area in m2 b) Licensed Area in m2 c) De licensed Area in m2

5.2 NEAREST FACILITIES a) Fire station b) Police Station e) Hospital / Medical Facilities f) Major Industry (if any)

5.3 LAYOUT/POWER/ COMMUNICATION

1

Does the plant layout conform to OISD-STD-118 / 141/ 214 / 226 and the inter-unit/intra-unit distances are fully met? Annexure-1 to be furnished highlighting the inter distances vis-à-vis OISD requirements.

2 Whether proper arrangement of roads is provided around the Station for movement of fire fighting vehicles

3 Power System Details: iv) Transformer Rating & Type v) HT Breaker Type & Rating vi) DG Set’s Details

4 Details of Sump PUMPs / Thermo Electric Generator

(g) Diff. Head (h) Shut off Head (i) Flow rate - maximum (j) Minimum Continuous flow (k) Pump safety protection

instrumentation (l) Power in HP / KW

5 Details of above ground and under grounds storage capacity at the stations product class wise.

6 Communication system details A. Telephones

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B. PA/Paging C. VHF D. Walkie/Talkie E. Hot Line F. VCS G. CCTV

5.4 STATUTORY APPROVALS / DOCUMENTATION 1 Whether following approvals have

been obtained for constrcution. - PESO (CCOE) approval for

construction of facilities( Ref no and Date).

- Copy of the approved layout to be attached.



2 Whether following licenses / approvals are available before comissioining - CCOE License No. , date, validity. - Is there any change with respect

to approved CCOE layout? - NOC from District Magistrate /

District Collector in case CCOE License is not applicable

- Govt. Notification for protected area declaration

- Clearance from CEA / State Electrical Inspectorate .

- DG Set Installation approval - Any other applicable statutory

license / approval

5.5 FIRE PROTECTION SYSTEM/FACILITIES / PLAN

1 Whether fire fighting equipment are provided as per the requirements of OISD-STD-117 / 141/ 214 / 216. Attach a list of such equipment available at site vis-à-vis OISD requirement as Annexure-3. Please indicate area of each facility.

2 Whether list of contact persons has been displayed with telephone nos.

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5.6 STATION PIPING

1 Whether station piping has been provided as per the latest approved P&IDs. Indicate drawing numbers. Attach a as built copy of drawings?

2 Whether mechanical completion certificate for the station is available?

3 Whether pipe supports (sliding / spring supports) guides and anchors are in order.

4 Does the piping slope towards drain points/knockout pots.

5 Whether all the flange connections has been checked for tightness and length of bolts are adequate. All short bolting have been checked?

6 Whether flow direction has been marked on station piping and equipment .

7 Whether proper direction for check valves and flow meters has been ensured.

8 Whether all equipment /valves have been numbered ? Asset Register Prepared.

9 Whether adequate crossovers for crossing and platforms to operate valves have been provided with safety hand rails?

10 Whether check for scraper signal has been done.

11 Whether access to all operating equipments including vessels, valves, sump pump, scraper barrel is adequate.

12 Whether CI dosing facilities with adequate stock is available for dosing in water and product.

13 Whether calibration charts for sump tank are available. Records to be made available ?

14 Whether hydrotest of station piping is

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carried out. Indicate following data High Pr. Section / Low Pr section

(e) Design Pressure (f) Operating Pressure (g) Hydrotest pressure (h) Period of Hold

15 Whether air cleaning is done. 16 Whether pneumatic testing / leak test

for flanges/ tapings have been completed and record maintained.

5.7 ELECTRICAL SYSTEMS & SUB-STATION & CP

1 Whether all equipment including motors, fittings, lighting etc. are as per hazard area classification (OISD-STD-113).


3 Whether the motors are provided with proper double earthing in line with Indian Electricity Rules (IER)?

4 Do earthing system and values conform to clause no. 4.2 of OISD-STD-173?

5 Whether earthing grid drawing is available?

6 Latest reading of Earthpit resistance with or without grid available? Date of such readings.

7 Whether separate grid for instrumentation and telecommunication system made?

8 Whether unused opening in trenches and substation covered?


10 Whether Cable entry / exit conduitproperly sealed? Rodent repellerinstalled below false flooring?

11 Whether proper ventilation is provided forthe room for battery charging andwhether walls and floors are acid proof.

12 Whether emergency lights are providedin sub-station and switch room, DG setroom.

13 Whether tags for proper identification ofcables and switches is provided at Sub-Station / control room.

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Whether Intermediate cable tags have been provided? If so at what Interval?

14 Whether all protective relays of Incomer,Transformer and PCC/MCC panelstested and documented .

15 Whether Station piping is protected by CP system? If so reading of ON / OFF PSP


17 Whether as built drawings for HT/LT/Pumps etc. are available. Indicate drawing numbers.

18 Whether smoke detectors are placed in cable trench and sub station?

19 Whether fire alarm system is provided in Control room / Sub station etc. and details available in control room.

20 Whether Electrical Jumpers have beenprovided across all flanges?

5.8 SAFETY DEVICES

1 Whether thermal safety valves have been installed directly on the protecting equipments / on the connected pipings with lock open isolation valve. Indicate set pressure of the thermal safety valves?

2 Whether the thermal safety valves have been calibrated and kept locked open. Calibration certificate to be made available ?

3 Whether tag nos. are displayed clearly on thermal safety valve body / Pressure gauges / flow meters / PTs/ TTs etc?

4 Whether indication of three phase power is available in control room.

5 Whether factory test data for all instrumentation system is available

6 Whether Instrumentation control loop checking have been completed?

7 MOVs which are on remote operation have been functionally tested for opening and closing operation?

8 Whether Vent lines have been provided as per clause7.3 of OISD-STD-226 in case of NG pipeline station

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6.0 SECTIONALISING VALAVE STATIONS AND OR CP – REPEATER

STATIONS.......... 6.1 Name of location & Chainage

LAND a) Total land area

6.2 NEAREST FACILITIES a) Fire station b) Police Station

6.3 LAYOUT/POWER/ COMMUNICATION

C Power System Details: i) Transformer Rating & Type ii) DG Set’s Details

D Communication system details Telephones

6.4 STATUTORY APPROVALS / DOCUMENTATION 1 Whether following licenses /

approvals are available. - Environment Pollution Consent

for:- i) Air ii) Water - Consent for Operation form State Pollution Control Board - Govt. Notification for protected area

declaration - Clearance from Electrical

Authorities - DG Set Installation approval Any other applicable statutory license / approval

6.5 FIRE PROTECTION SYSTEM/FACILITIES / PLAN

1 Whether fire fighting portable extinguishers are provided as per the requirements of OISD-STD-117/ 141/ 214/ 226 Attach a list of such equipment available at site vis-à-vis OISD requirement as Annexure-3. Please indicate area of each facility.

2 Whether list of contact persons has been displayed with telephone nos.!

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6.6 ELECTRICAL SYSTEMS & SUB-STATION

1 Do earthing system and values conform to item no. 4.2 of OISD-STD-173?

2 Whether earthing grid drawing is available.



5 Whether proper ventilation is providedfor the room for battery charging andwhether walls and floors are acidproof.

6 Whether emergency lights areprovided in sub-station and switchroom, DG set room.

7 Whether tags for proper identificationof cables and switches is provided atSub-Station / control room.

8 Whether all protective relays ofIncomer, Transformer and PCC/MCCpanels tested and documented .


10 Whether fire alarm system is provided

11 Whether Vent lines have been provided as per clause7.3 of OISD-STD-226 in case of NG pipeline station

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ANNEXURE -I

INTERDISTANCE & SAFETY DISTANCE BETWEEN FACILITIES : Recommended Actual In OISD-STD-118/ 141/ 214 / 226 (Metres)

1. Booster pump / compressor House & main Pump / compressor house : 2. Control Room & Pump house : 3. Fire Pump house to product pump house: 4. Cold flare to compound wall : 5. Water spray deluge to pump house : 6. Electric substation to cold flare : 7. Between tank farm & pumphouse : 8. Between tank farm & Fire water :

Pump house 9. Between pump house & sub.stn. : 10. Between storage tanks & : Dia of Tank

compound wall 11. Between storage tanks & : Half the height

Dyke wall of the tank. 12. Fire Water Hydrant/monitor & process : 15 piping

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ANNEXURE -Ii

FIRE WATER CALCULATION DETAILS AS PER REQUIREMENT OF RELEVANT OISD STANDARDS

(OISD–STD-117 / OISD-STD-141/ OISD-STD-214 / OISD-STD-226 )

---End of Checklist---