HCP-8000-PL-Z-3304 P3 S04 Confined Space Entry Rev 0

HAIL CREEKCOAL PROJECT

HAIL CREEK COAL PROJECT Hail Creek Coal Project

Safety Management Systems Manual Rev 0 Part 3, Section 4, Confined Space Entry Page i of ii HCP-8000-PL-Z-3304

Table of Contents

1 PURPOSE & SCOPE 1

2 DEFINITIONS 1

2.1 Confined Space 1

2.2 Confined Space Entry 1

2.3 Confined Space Stand-By Person 2

2.4 Contaminant 2

2.5 Exposure Standard 2

2.6 Flammable Range 2

2.7 Lower Explosive Limit (Lel) 3

2.8 Restricted Space 3

2.9 Safe Oxygen Level 3

2.10 Authorised Entrant 3

2.11 Blanking Or Blinding 3

2.12 Double Block And Bleed 3

2.13 Emergency 3

2.14 Isolation 3

2.15 Line Breaking 4

2.16 Testing 4

2.17 Entry Control Board 4

3 ROLES & RESPONSIBILITIES 4

3.1 Site Senior Executive (SSE) 4

3.2 Project Construction Manager 4

3.3 Project Safety Manager 4

3.4 Line Managers 5


Safety Management Systems Manual Rev 0 Part 3, Section 4, Confined Space Entry Page ii of ii HCP-8000-PL-Z-3304

3.5 Entry Supervisor 5

3.6 Permit Issuers 6

3.7 Authorised Entrants 8

3.8 Entry Controller 8

4 PROCEDURES 9

4.1 Requirements 9 4.1.1 Identification 9 4.1.2 Permit System 9 4.1.3 Other Requirements 10

4.2 Competent & Authorised Personnel 10

4.3 Confined Space Entry Permit, Process & Application (Annexure 1) 10

4.4 Confined Space Entry Permit Approval & Validity 11

4.5 Confined Space Entry Permit Revalidation & Relinquishment 12

4.6 Confined Space Entry Permit Closure & Handback 12

4.7 Confined Space Entry General Requirements 13 4.7.1 Access 13 4.7.2 Atmospheric Testing 13 4.7.3 Electrical Equipment Inside a Confined Space 14 4.7.4 Entry Controller 14 4.7.5 Job Hazard Analysis (JHA) 15 4.7.6 Hot Work Inside a Confined Space 15 4.7.7 Signage 16 4.7.8 Ventilation 16 4.7.9 Training 16

4.8 Records 17

5 REFERENCES 17

Annexure 1: Confined Space Entry Permit 1

Annexure 2: Entry/Exit Log 1

Annexure 3: Atmospheric Testing Sheet 1

Annexure 4: Checklist for Confined Space Identification 1

Annexure 5: Risk Management Form for Confined Space Work 1


Safety Management Systems Manual Rev 0 Part 3, Section 4, Confined Space Entry Page 1 of 17 HCP-8000-PL-Z-3304

1 PURPOSE & SCOPE This standard establishes the safety requirements that need to be applied before work is performed in confined spaces. It also establishes the processes that must be followed for hazard identification and risk assessment of Confined Spaces prior to entry commencement. The aim is to provide management controls so that people are not exposed to risk when working in confined spaces. This standard applies to all work in confined spaces at the Hail Creek Coal Project. Notice: The identification of, and work carried out in Confined Spaces shall be in accordance with Australian Standard 2865:2001 2 DEFINITIONS 2.1 CONFINED SPACE An enclosed or partially enclosed space which: that is at atmospheric pressure during occupancy and is not intended or designed primarily as a place of work, and –

a) Is liable at any time to – (i) have an atmosphere which contains potentially harmful

levels of contaminant; (ii) have an oxygen deficiency or excess; or (iii) cause engulfment; and

b) could have restricted means of entry and exit.

Confined spaces may include, but are not limited to: a) Storage tanks, tank cars, process vessels, boilers, pressure vessels, tank-like

compartments that only have a manhole for entry, ceilings and floor spaces;

b) Open-topped spaces such as pits or degreasers of more than 1.5 metres depth; or

c) Pipes, sumps, sewers, shafts, ducts, drains, tunnels and similar structures. 2.2 CONFINED SPACE ENTRY For the purpose of this standard: a person whose whole body, upper body or head is within a confined space is considered to have entered the confined space. However, this is not intended to prevent a person from inserting their hand or arm while holding a test instrument or probe into the confined space as part of the evaluation prior to entry.



2.3 CONFINED SPACE STAND-BY PERSON A competent person assigned to remain on the outside of, and in close proximity to the confined space and capable of observing (if practicable) and being in continuous communication with those inside. In addition, where necessary, to initiate emergency procedures and operate and monitor equipment used to ensure safety during entry and work in the confined space. 2.4 CONTAMINANT Any dust, fume, mist, vapour, gas or other substance in liquid or solid form, the presence of which may be harmful to health and safety. 2.5 EXPOSURE STANDARD An airborne concentration of a particular substance in the person’s breathing zone, exposure to which, according to current knowledge, should not cause adverse health effects nor cause undue discomfort to nearly all persons. The exposure standard can be of three forms: time weighted average (TWA), short term exposure limit (STEL) or peak exposure limit. The following terms are used in calculating levels of atmospheric contaminants: a) TWA – the average airborne concentration of a particular substance when

calculated over a normal eight hour workday, for a five day working week.

b) STEL – a fifteen (15) minute TWA exposure which should not be exceeded at any time during a work day even if the eight hour TWA average is within TWA exposure standard. Exposure at the STEL should not be longer than 15 minutes and should not be repeated more than four times in a day. There should be at least 60 minutes between successive exposures at the STEL.

c) Peak – a maximum or peak airborne concentration of a particular substance determined over the shortest analytically practicable period of time, which does not exceed 15 minutes.

Note: For further information, refer to the National Occupational Health and Safety Commission’s ‘Adopted National Exposure Standards for Atmospheric Contaminant in the Occuptional Environment’ (NOHSC: 1003 (1991) 2.6 FLAMMABLE RANGE The range of flammable gas or vapour (percentage by volume) in air in which an explosion can occur upon ignition. Expressed by lower explosive limit (LEL) and upper explosive limit (UEL).



Note: The concentration of the flammable contaminant in air either below the LEL or above the UEL propagation of a flame does not occur on contact with an ignition source. 2.7 LOWER EXPLOSIVE LIMIT (LEL) In relation to a flammable contaminant, the concentration of the contaminant in air below which the propagation of a flame does not occur on contact with an ignition source. 2.8 RESTRICTED SPACE A space that has been identified as requiring a Confined Space Entry Permit should hot work or hazardous chemicals be introduced to the space. 2.9 SAFE OXYGEN LEVEL A minimum oxygen content in air of 20.8 percent by volume under normal atmospheric pressure, and a maximum oxygen content in air of 23.5 percent by volume. 2.10 AUTHORISED ENTRANT An employee who has completed formal classroom instruction in their roles and responsibilities and the requirements of this procedure. 2.11 BLANKING OR BLINDING The absolute closure of a pipe, line or duct by the fastening of a solid plate (such as a spectacle blind or a slip plate) that completely covers the bore and that is capable of withstanding the maximum pressure of the pipe, line or duct with no leakage beyond the plate. 2.12 DOUBLE BLOCK AND BLEED The closure of a line, duct or pipe by closing and locking or tagging two in-line valves and by opening and locking or tagging a drain or vent valve in the line between the two closed valves. 2.13 EMERGENCY Any occurrence (including failure of hazard control or monitoring equipment) or event internal or external to the permit space that could endanger the confined space entrants. 2.14 ISOLATION



The process by which a confined space is removed from service and completely protected against the release or energy and material into the space by such means as blanking or blinding, misaligning or removing sections of lines, pipes, or ducts, a double block and bleed system, lockout and tag out of all sources of energy, or blocking or disconnecting all mechanical linkages. 2.15 LINE BREAKING The intentional opening of a pipe, line, or duct that is or has been carrying flammable, corrosive, or toxic material, an inert gas, or any fluid at a volume, pressure, or temperature capable of causing injury. 2.16 TESTING The process by which the hazards that may confront entrants of a confined space are identified and evaluated. Testing includes specifying the tests that are to be performed in the confined space. 2.17 ENTRY CONTROL BOARD Designated Board for attaching personal padlocks prior to entry into confined space. 3 ROLES & RESPONSIBILITIES 3.1 SITE SENIOR EXECUTIVE (SSE) The SSE will: § Ensure effective implementation of this standard.

3.2 PROJECT CONSTRUCTION MANAGER The Project Construction Manager will ensure that: § Site Safety Standards and Procedures are developed and maintained for the

management of hazards associated with Entry into Confined Spaces;

§ Sufficient resources are provided to ensure compliance with the requirements of this Standard.

3.3 PROJECT SAFETY MANAGER The Project Safety Manager will ensure that:



§ Appropriate training programs are provided for personnel required to enter into and/or work in Confined Spaces;

§ Appropriate training and assessment is provided for those required to ‘Issue’ Confined Space Entry Permits;

§ Atmospheric sampling and testing equipment is serviced and calibrated at least once per year, or more often if required, and records are maintained of such servicing and calibration;

§ Atmospheric sampling and testing equipment is made available for personnel required to enter into confined spaces;

§ Only gas detectors that have been properly calibrated and fitted with new batteries are issued;

§ Rescue squad personnel are trained to rescue from confined spaces;

§ A site register is maintained of those authorised to ‘Issue’ Permits;

§ This document is maintained within the site Safety Management System. 3.4 LINE MANAGERS Each Line Manager will ensure that: § Confined or Restricted Spaces are identified within their area of responsibility;

§ A register of Confined and Restricted Spaces is maintained;

§ Identify and appoint sufficient, trained and competent persons and entry Supervisors to ‘Issue’ Confined Space Entry Permits and define their area of authority to issue, and

§ Persons required to ‘Issue’ Confined Space Entry Permits are retrained, tested, and have ‘Authority to Issue Permits’ renewed as required.

3.5 ENTRY SUPERVISOR § Knows the hazards that may be faced during entry and consequences of the

exposure;

§ Ensure that final safety checks have been performed prior to entry and verify that all permit conditions are applied.

§ Verify that the atmospheric testing requirements documented on the permit have been conducted and that all procedures and equipment specified by the permit are in place before accepting the permit and allowing entry to begin;

§ Verify that rescue equipment and resources are available and that the means for summoning them are operable;

§ Determine, whenever responsibility for a confined space entry operation is transferred and at intervals dictated by the hazards and operations performed within the space, that entry operations remain consistent with terms of the entry permit and that acceptable entry conditions are maintained;



§ Ensure that Entry Control Boards are available and used.

§ Ensure persons entering Confined Space are authorized to do so. § At the completion of shift ensure that:

- The site is left in a clean and safe condition;

- All personnel have departed the space;

- All entry points are barricaded and signposted;

- All personnel have removed their Personal Locks and Danger Tags.

§ At the completion of work ensure that a pre closure inspection is undertaken (if required).

3.6 PERMIT ISSUERS Persons Authorised to Issue Confined Space Entry Permits will ensure that: § They review the permit and identify the means, procedures and practicees

necessary for safe confined space operations;

§ They understand the nature of the hazardous work for which they issue permits;

§ They only Issue Permits for which they are authorised to Issue;

§ Persons working under Permits are aware of the hazards involved and the precautions they must take;

§ A stand-by person is stationed at the entrance to the confined space with the appropriate fire / rescue equipment at hand;

§ All necessary controls have been established before the work starts by inspecting the work site and reviewing the relevant risk assessment and subsequent Work Instructions;

§ Confined spaces are properly decontaminated, cleaned and purged (as required) and the atmosphere is not explosive or toxic and has an oxygen content of between 20.8% and 23.5%.

§ Atmospheric testing / sampling equipment is tested for response prior to entry to the confined space by comparing readings of air outside with that inside the confined space;

§ All sources of energy with potential for injury are isolated and locked out prior to work commencing;

§ All controls and precautions in relation to the risk assessment are stated on the Permit;

§ The Confined Space Entry Permit has been signed off before any associated equipment is returned to service;

§ All people and equipment have been withdrawn from the work site and equipment is safe to return to work before closing the Permit;



§ They remain competent in the use of monitoring atmospheres using site sampling equipment; and

§ Conduct audits and inspections to ensure compliance with requirements of this procedure.



3.7 AUTHORISED ENTRANTS Authorised entrants are required to perform Confined Space Entry will ensure that: § Confined Space Entry Permits are obtained and applied where required;

§ Risk assessment is conducted prior to commencement of Confined Space Entry;

§ They understand the requirements of the Confined Space Entry Permit and do not deviate from the Instructions and Procedures outlined on the permit;

§ They satisfy themselves that all necessary precautions are taken and hazards are effectively controlled before work commences and whilst performing such work;

§ All energy sources are identified and effectively isolated before commencing work;

§ They ‘sign-on’ to the Permit, as required;

§ Confined spaces have been decontaminated, cleaned and purged, where required, prior to entry;

§ The atmosphere inside the confined space is not explosive or toxic and has an oxygen content of between 20.8 and 23.5%;

§ The quality and temperature of the air inside the confined space is continually monitored and is re-assessed prior to re-entry where the space has been temporarily unoccupied for in excess of thirty minutes;

§ No item / equipment is taken into confined spaces that might increase the risk to those working within, eg: cigarette lighters, chemicals, etc;

§ All electrical equipment, welding cables and oxy / acetylene (fuel) hoses and handpieces are removed from confined spaces whenever there is a significant break from work, eg: crib, smoko, etc;

§ They leave the space immediately if the atmosphere or safe working conditions deteriorate, and notify the person who issued the permit of any changes or hazards existing;

§ They signify their occupancy of the space by attaching their personal lock and danger tag on the Entry Control Board provided, and

§ They notify the permit issuer at the completion of work so that the permit can be closed off.

3.8 ENTRY CONTROLLER Confined Space Entry controller will ensure that: § They understand the nature of work to be carried out, the likely hazards and the

necessary precautions;



§ They read and understand the details of the Permit and other associated Procedures and Instructions related to the task;

§ The Permit documents are retained at the work site for the duration of the work and compliance to the Permit is monitored;

§ All persons involved in the task are notified of any variations, ie: Permit Issuer, Supervisor and personnel engaged in the task;

§ A reliable means of communication is maintained between themselves and those inside the confined space. Visual (where practical) and audible (use radio if necessary) communications are preferred;

§ They stay in attendance at all times unless relieved by an authorised person;

§ They monitor those entering and leaving the confined space;

§ Appropriate rescue / emergency equipment is at hand and in ‘ready-for-use’ condition;

§ They stop the work any time they think a dangerous situation may be present (if unsure, stop the work and seek advice);

§ They do not attempt rescue of persons inside the confined space themselves but initiate site emergency procedures, should this be required;

§ Equipment outside the confined space that provides services to those inside is monitored, eg; power sources, welding and gas equipment, ventilation systems, etc.

4 PROCEDURES 4.1 REQUIREMENTS 4.1.1 Identification Confined spaces must be identified and signs erected at the entry points denoting that a permit is required prior to entry. Where signage is impractical, other means of highlighting the dangers need to be used. 4.1.2 Permit System Entry to a confined space must only be allowed after a written approval, in the form of a permit, has been issued by a competent person, whom is authorised to issue such permits. The permitting process must include the following elements: § A risk assessment, including the need for a competent person to assess such

things as oxygen levels, contaminants, temperature, and concentrations of flammable substances;

§ Isolation procedures for contaminants and other energy sources;



§ The requirements for breathing apparatus;

§ The sign-in and sign-out of all persons entering the confined space;

§ Display of the permit and the Confined Space Entry Board;

§ Communication equipment;

§ Barricading and appropriate signage and danger tags;

§ Rescue plan and equipment;

§ Standby person.

4.1.3 Other Requirements All persons required to work in a confined space, or to act as a standby person, must be trained, competent and tested. Specific safe work procedures must be developed for work activities that are more hazardous when carried out in a confined space than elsewhere. These activities would include hot work (cutting and welding), chemical cleaning, steam cleaning and abrasive blasting. The standby person will have no other duties and is to be positioned outside the confined space entry point at all times while personnel are within the space. Where the risk assessment has identified the need for ventilation, then this must be covered by a documented procedure. 4.2 COMPETENT & AUTHORISED PERSONNEL Employees required to undertake entry or work within a confined space shall be currently competent in the tasks that they are required to perform and in the site compliance standards and procedures relating to Confined Space entry. To be ‘currently competent’ in Confined Space Entry, a person shall have successfully completed appropriate site approved training in confined space entry within the past 12 months. Only persons who are currently competent and duly authorised to Issue Confined Space Entry Permits shall authorise (issue) such permits. 4.3 CONFINED SPACE ENTRY PERMIT, PROCESS & APPLICATION

(ANNEXURE 1) Where a confined space entry is required the Entry Supervisor shall complete Part A of the Confined Space Entry Permit and submit the permit to the Permit Issuer. The Permit Issuer shall review the Permit and identify the means, procedures, and practices necessary for safe permit space entry operations in Part B of the Permit, including, but not limited to, the following:



§ Specifying acceptable entry conditions;

§ Define the isolation requirements and instigate an Isolation List in consultation with the appropriate Isolation Authority (Mechanical or Electrical);

§ Define any purging, inerting, flushing, or ventilation requirements as necessary to eliminate or control atmospheric hazards;

§ Detail the pedestrian, vehicle, or other barriers as necessary to protect entrants from external hazards;

§ Define the atmospheric assessment requirements necessary to ensure that atmospheric conditions in the permit space are acceptable for entry throughout the duration of an authorised entry;

§ If necessary the rescue and emergency services that can be mobilised and the means (such as the equipment to use and the numbers to call) for mobilising those services;

§ The communication procedures to be used by entrants and attendants to maintain contact during the entry;

§ Equipment, such as personal protective equipment, atmospheric monitoring equipment, alarm systems, and rescue equipment, to be provided;

§ Any other information whose inclusion is necessary, given the circumstances of the particular confined space, in order to ensure employee safety.

4.4 CONFINED SPACE ENTRY PERMIT APPROVAL & VALIDITY 1. The Permit Issuer once satisfied that:

§ All the requirements of Part B of the Permit have been identified and put in place

§ The isolations stated on the Isolation List have been put in place;

§ And any associated Permits are authorized, shall then complete the authorisation to commence work section at Part C.

2. The Entry Supervisor for the confined space entry shall acknowledge the

Confined Space Entry Permit conditions and the requirement for all employees undertaking the work to be informed by signing the Acceptance section at Part C.

3. Prior to starting work the Entry Supervisor shall ensure that:

§ Where a lockout and tag-out is in place all personnel have placed their personnel Locks and Danger Tags and have signed onto Permit or Sign On/Off Continuation Sheet for extended Permits, and

§ An atmospheric assessment has been undertaken.



4. A Confined Space Entry Permit is valid for a maximum of 14 days and must either be handed over to a new Permit Holder or handed back at the end of shift.

5. The Entry Supervisor or Permit Issuer shall terminate entry and cancel the

permit when entry operations covered by the entry permit have been completed, or when a condition that is not allowed under the entry permit arises in or near the confined space.

4.5 CONFINED SPACE ENTRY PERMIT REVALIDATION &

RELINQUISHMENT 1. Re-validation at shift commencement and relinquishment at shifts end is

required for all Confined Space Entry Permits. 2. The Entry Supervisor shall ensure that the Original copy of the Confined Space

Entry Permit is relinquished to the Permit Issuer upon the completion of works for the shift.

3. The Entry Supervisor shall relinquish the Confined Space Entry Permit by

signing the relinquishment section of the original and duplicates of Confined Space Entry Permit and any associated Permits (held by the appropriate Authority) conditional upon:

§ All personnel have left the confined space and all openings to the confined

space are bunted and signposted with Danger Signs to prevent unauthorised entry;

§ Where a lockout and tag-out is in place all personnel have removed their personnel Locks and Danger Tags;

§ All personnel have signed off the Permit or Sign On/Off Continuation Sheet for extended Permits;

§ The site has been left in a clean and safe condition. 4. At the commencement of shift the Entry Supervisor shall re-validate the

Confined Space Entry Permit, and associated Permits, by signing the re-validation section, of the original and duplicate copies of the Confined Space Entry and any associated Permits.

5. All re-validations shall be initialed by the Permit Issuer after an initial

Atmospheric Test has been undertaken and the results logged onto an Atmospheric Testing Sheet.

4.6 CONFINED SPACE ENTRY PERMIT CLOSURE & HANDBACK 1. At the completion of all work associated with the Confined Space Entry Permit

the Permit Holder shall, prior to closing the confined space, request permit authorisation to do so from the Permit Issuer.



2. Prior to closure of a confined space the Permit Issuer shall inspect the confined space to ensure it is ready for closure.

3. The Permit Issuer shall then sign the closure section on the Original copy of the

Permit. 4. The Entry Supervisor shall then sign handback section of the Original of the

Permit. 5. After completion of the closure, and after confirming all isolations associated

with the Permit have been removed, the Permit Issuer shall cancel the original copy of the Confined Space Entry Permit.

6. Prior to the cancellation of the Permit the Permit Issuer shall sight the original

Isolation List to confirm all isolations have been removed and file the original of the Confined Space Entry Permit and Isolation List.

4.7 CONFINED SPACE ENTRY GENERAL REQUIREMENTS 4.7.1 Access Access openings into the confined space must permit rescue of all personnel who enter the confined space. These access ways into and out of the equipment and surrounding area must be kept clear of any obstructions. The application of rescue equipment including stretchers shall be identified in the Confined Space JHA. It may be necessary to provide scaffold platforms and stairs or ladders to the access levels to gain safe convenient access for work and for rescue purposes. 4.7.2 Atmospheric Testing The Permit Issuer shall define on the Confined Space Entry Permit any atmospheric testing requirements. As a minimum, an Authorised Gas Tester must perform an atmospheric test prior to entry at the commencement of each shift and record the result in Part B of the Confined Space Entry Permit. The Permit Issuer shall identify the frequency of ongoing atmospheric tests if the nature of the confined space or the work being performed indicates this is warranted. Atmosphere testing and monitoring shall be carried out consistent with hazards identified and the risk assessment. Ongoing atmospheric tests results shall be recorded by the Authorised Gas Tester in Part D of the Confined Space Entry Permit. As an absolute minimum, oxygen content and flammables content (% LEL) are tested at each atmospheric assessment. Other contaminants potentially present shall



be tested prior to entry and when any repeat atmospheric tests are identified as being required by Hazard Assessment or change of conditions. Prior to entry, the atmosphere of a confined space must meet the following minimum requirements: § The atmosphere must contain a 0% concentration of Lower Explosive Level

(LEL);

§ The atmosphere contains an Oxygen (O2) concentration of no less than 20.8% and no greater than 23.5% by volume;

§ The concentration of any other atmospheric contaminant is no greater than the Exposure Standard expressed as a Time Weighted Average (TWA); and

§ There is no potential for the level of atmospheric contaminant to fall outside the above ranges.

4.7.3 Electrical Equipment Inside a Confined Space If electrical equipment must be used the following precautions shall be taken: § 32v lighting is to be used

§ Test and locate Residual Current Devices (RCD’s) outside the space, if not fitted elsewhere in the circuit;

§ Ensure all leads that must enter vessels and tanks are routed through a nozzle or opening other than the access or hatch, wherever possible;

§ Ensure all electrical equipment is shutdown when the confined space is not attended (Crew breaks etc…);

§ Ensure all electrical equipment and leads are inspected and checked for cracks, cuts and breaks in insulation. Have it checked by an authorised person and faults rectified if any doubt of the condition exists;

§ All electrical equipment shall display current inspection identification;

§ Check all welding leads for cracks, cuts and breaks in insulation. Have it checked by an authorised person and faults rectified if any doubt of the condition exists;

§ Ensure shutdown switches for all equipment is readily available to the outside Entry Attendant.

4.7.4 Entry Controller An Entry Controller who has been trained in resuscitation shall keep the worker(s) and work area under constant observation. Effective communication procedures must be established between the worker(s) and the observer. The Entry Coller shall be made aware of the Procedure and / or Work Instructions to ensure compliance is maintained.



An Entry Controller must be positioned at the single designated entry point to the confined space prior to any entry and during entry to the space. Under no circumstances shall the Entry Controller enter the confined space or attempt a rescue. 4.7.5 Job Hazard Analysis (JHA) A JHA addressing the task and the specific hazards must be undertaken prior to any confined space entry. The JHA must be made available to each employee entering the space and discussed as part of task meeting. 4.7.6 Hot Work Inside a Confined Space Caution must be exercised at any time hot work is required in a confined space as the work process itself may render the atmosphere hazardous even though initial tests were satisfactory. In addition to the normal precautions associated with Confined Space Entry and hot work the following conditions also apply: § A Hot Work Permit is required for all Hot Work activity carried out in a Confined

Space;

§ Continuous atmospheric monitoring maybe employed for high risk hot work such as welding in poorly ventilated areas;

§ Ensure adequate ventilation to reduce welding fumes and where necessary provide additional Personal Protective Equipment;

§ Suitable respiratory equipment shall be worn to mitigate the risks associated with the thermal decomposition of coatings, scale, sludge and metals (alloys) in the work area;

§ All liquid and solid residues that may contribute to the release of flammable vapors or gases raising the concentration above the 5 % LEL limit shall be removed;

§ Power source to equipment when arc welding shall be isolated for crew breaks or at end of shift. All electrodes must be removed from holders and placed so that accidental arcing or contact cannot occur;

§ Torch and cylinder valves shall be de-pressurised and the whole torch and assembly hose removed when oxy acetylene cutting, heating or welding is suspended for breaks or at end of shift;

§ Compressed gas cylinders or associated manifolds, other than those used for breathing apparatus, shall not be taken inside the confined space.



4.7.7 Signage If permanent danger signs is not posted, the Entry Supervisor shall ensure that an appropriate danger sign has been located near all entrances into a confined space prior to (and during) personnel entry, and throughout confined space operations while normally closed entrances are open. The wording for the Danger signs is:

DANGER

CONFINED SPACE ENTRY

AUTHORISED PERSONNEL ONLY

A single point of entry must be designated and all other entrances, such as manholes flanges, shall be barricaded to prevent physical entry of persons and Danger signage placed identifying the area as a confined space and no entry is permitted. 4.7.8 Ventilation If welding is required in a Confined Space, some form of mechanical ventilation may be required that can provide an adequate volumetric rate of fresh air in the vicinity of the worker(s). Refer to Australian Standards 2865 (Working in a confined space), 1674.1 (Safety in welding and allied processes, Part 1: Fire precautions), and 1674.2 (Safety in welding and allied processes, Part 2: Electrical). The ventilation power supply should be tagged with an Information Tag to prevent accidental disconnection. 4.7.9 Training The Induction training provided to each employee upon initial assignment to project site shall include sufficient instruction to prevent unauthorized entry into a confined space. Employees prior to initial assignment as an Entrant or Entry Supervisor shall successfully complete a site approved formal classroom training session. Training content shall include the: § Site-specific requirements for Confined Space Entry; and the;

§ General duties of Entrants, Controllers and Entry Supervisors. All personnel required to conduct Authorised Gas Testing shall be required to complete a site approved formal classroom training session. Training content shall include:



§ An introduction to sensor operation theory; § Monitoring equipment specific training;

§ The physical and health properties associated with common atmospheric contaminants;

§ Atmospheric testing methodology. Attendance and training outcomes for all Confined Space Entry training sessions shall be documented. 4.8 RECORDS All documents relating to issuing and conduct of work associated with a Permit shall be recorded. Upon completion of the work, all documents shall be collected and filed by the Site Project Safety Manager. Completed Permit pads shall be returned to the Safety Section for archiving purposes, new pads will be issued in exchange for the old ones. 5 REFERENCES § Rio Tinto Safety System.

§ Coal Mining Safety & Health Act 1999 & Regulation 2001.

§ Australian Standard 2865:2001

§ NOHSC: 1003 (1991)


Safety Management Systems Manual Rev 0 Part 3, Section 4, Confined Space Entry HCP-8000-PL-Z-3304

Annexure 1 Confined Space Entry Permit


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Annexure 1: Confined Space Entry Permit

Part A Scope Of Work (completed by Entry Supervisor) Applicant: Company: Application Date: Entry Date: Permission is requested to undertake a confined space entry at the following location: The reason for the entry is: Chemicals or Solvents to be used? Yes No If Yes Attached Material Safety Data Sheets Part B Permit Conditions (completed by Permit Issuer)

Potential Entry Related Hazards: (Indicated with a cross) Oxygen (< or >) Materials harmful to skin High temperature Flammable gases or vapours Mechanical Hazards Restricted Access OTHER: (Describe in JHA attached to this clearance)

Preparation For Entry: (Indicated with a cross) Blind/Slip Plate Purge/Clean Scaffold Ladder Access Spool Removal Inert Barriers/Signage Double Block and Bleed Ventilate Hot Work Exclusion Zone Excavation Clearance Isolation List

Communication Method: (Indicated with a cross) Visual/Audible Contact Hand Held Radio CH Lifeline Signals

Emergency Response Requirements: Full Body Harness Lifeline Mechanical Hoist Bull Horn Emergency Notification Procedure: Personal Protective Equipment: (Indicated with a cross) Air Line Mono-Goggles Hearing Protection SCBA Chemical/Dust Respirator Type: Faceshield Fall Prevention Type: Other Equipment Requirements: Residual Current Device 32v (ELV) Lighting Ex Proof Lighting Fire Extinguisher Extraction Ventilation Initial Atmospheric Test Result: Oxygen: %LEL: Other: Other: Signature: Authorised Gas Tester Date:

Ongoing Atmospheric Testing Frequency: Continuous Hourly Part C Authorisations and Acceptances Authorisation to Commence Work: Authorisation is given to commence the confined space under the conditions described on this Permit Signature:

Permit Issuer

Date:


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Acceptance: I understand and accept the conditions and precautions detailed on this Permit and shall ensure that all personnel involved in the confined space entry described are informed of them. Signature:

Entry Supervisor

Date:

Part D Revalidation/Relinquishment Re-validation

I understand and accept the conditions and precautions detailed above and shall ensure that all

personnel involved in the confined space entry described above are informed of them.

Relinquishment All works associated with this clearance have been

completed and the site is left in a clean and safe condition.

Date Time Signature CSEA Init

Time

Signature CSEA Init

Refer Section C Refer Section E

Part E Handback and Closure Closure Authority: (Required at the completion of all work in the confined space) I have inspected the confined space and authority for full closure is granted. Signature:

Permit Issuer

Date:

Handback: All works has been completed and the site is left in a clean and safe condition. All entry points to the confined space have been signposted and barricaded to prevent unauthorised entry. Signature:

Entry Supervisor

Date:

Permit Closure: As described above all work associated with this permit have been completed and isolations removed. Signature:

Permit Issuer

Date:



Annexure 2 Entry/Exit Log


Safety Management Systems Manual Rev 0 Part 3, Section 4, Confined Space Entry Page 1 of 1 HCP-8000-PL-Z-3304 Annexure 2, Entry/Exit Log

Annexure 2: Entry/Exit Log

Entry Supervisor: Company: Entry Date: Attendant: Location: Contact your Entry Supervisor if conditions change or personnel not directly involved in the activity request entry. In the event of an emergency contact Security on Radio Channel ?? and state:

• Your Name. • Location. • Assistance Required (Medical, Fire etc….) • Number of Personnel remaining in the Space.

Under no circumstances enter the confined space to affect a rescue – WAIT FOR ASSISTANCE!

Entrant’s Name Time

In Time Out

Time In

Time Out

Time In

Time Out

Time In

Time Out



Annexure 3 Atmospheric Testing Sheet


Safety Management Systems Manual Rev 0 Part 3, Section 4, Confined Space Entry Page 1 of 1 HCP-8000-PL-Z-3304 Annexure 3, Atmospheric Testing Sheet

Annexure 3: Atmospheric Testing Sheet

Entry Supervisor: Company:

Entry Date: Attendant:

Location:

Time Oxygen (20.8%)

% LEL (0 %)

Other: Other: AGT Initials

Hrs

Hrs

Hrs

Hrs

Hrs

Hrs

Hrs

Hrs

Hrs

Hrs

Hrs

Hrs

Hrs

Hrs



Annexure 4 Checklist for Confined Space Identification


Safety Management Systems Manual Rev 0 Part 3, Section 4, Confined Space Entry Page 1 of 1 HCP-8000-PL-Z-3304 Annexure 4, Checklist for Confined Space Identification

Annexure 4: Checklist for Confined Space Identification

Yes No

1. Is the space at normal atmospheric pressure during occupancy?

2. Is the space not intended/designed primarily as a place of work?

3. Does the space have restricted means of entry/exit?

4. Does the space have the potential to contain harmful levels of

contaminants?

5. Does the space have the potential to contain low levels of oxygen?

6. Does the space have the potential to contain high levels of oxygen?

7. Is there the potential for you to be engulfed whilst in the space?

NO to questions 2 and 3: This is a normal place of work and assessment for confined space stops. YES to questions 1 and (2 and/or 3) only: This is a RESTRICTED SPACE and a permit is not required unless an added hazard, such as hot work or a chemical is introduced to the space. YES to questions 1 and (2 and/or 3) and (4 or 5 or 6 or 7): This is a CONFINED SPACE and a permit is required to enter.



Annexure 5 Risk Management form for Confined Space Work


Safety Management Systems Manual Rev 0 Part 3, Section 4, Confined Space Entry Page 1 of 6 HCP-8000-PL-Z-3304 Annexure 5, Risk Management form for Confined Space Work

Annexure 5: Risk Management Form for Confined Space Work Part 1 – Work undertaken Describe the work to be undertaken.

Part 2 - Hazard Identification Oxygen deficiency in the confined space. Possible causes of injury Yes No

Slow oxidation of either organic or inorganic substances

Rapid oxidation (combustion)

The dilution of air with an inert gas

Oxygen absorption by chemicals

Physical activity

Other:

Hazards Controls



Oxygen Excess Possible causes of injury Yes No

Leaking oxygen supply fittings

Oxy cutting/gouging

Other:

Hazards Controls

Presence of contaminants: solids, liquids, sludges, gases, vapours, fumes, particulates. Possible causes of injury Yes No

Contaminants produced by the process or machine operation (eg Coal Dust, Grease & Oil)

Stored substance (eg Lime, Fuel, Oil)

Operation performed (eg Painting, Cutting and Welding, Cleaning)

Hazards Controls



Other energy sources (Isolation requirements) Possible causes of injury Yes No

Operation of equipment

Introduction of water or other gas or liquid

Suffocation by solids

Electrocution

Explosion or fire

Stored energy sources

Hazards Controls



Additional risk factors Yes No

Worker selection (aptitude, fitness and training)

Noise (eg hammering, tools)

Temperature (eg high or low)

Radiation (eg X-Ray, radiation gauges, lasers and welders)

Manual handling

Falls, trips and slips

Number of employees involved (inside and outside)

Lighting and visibility

Atmospheric testing

Other:

Hazards Controls



Part 3 – Method used Details of the actual method to be used for the particular work. Labour resources (skills, numbers & shifts Machines & tools: Parts & consumables: Signage: Method:



Part 4: Emergency Rescue Plan Communication systems (type, testing) Special equipment requirements (ie confined space harness, emergency equipment) Mines Rescue Squad planning/practice

Documents

HCP-8000-PL-Z-3304 P3 S04 Confined Space Entry Rev 0