group safety guideline 1 isolation overview

GROUP SAFETY GUIDELINE 1 ISOLATION OVERVIEW DATE: 12 AUGUST 2019

DATE NAME CHANGE APPROVED REVISION

3/06/2016 K. Ashby Issued for Use Executive Leadership Team (ELT)

0

25/01/2019 K. Ashby Re-issued for Use ELT 1

01/05/2019 By working group comprising of site, exploration and corporate representatives

Comprehensive rewrite with the addition of: • Section 5.5 - Radiation isolation • Section 5.7 - Confined space

entry • Section 5.4 - High voltage

switching and isolation • Section 5.3 - Vehicle, mobile

and equipment isolation The following IGO standards and guidelines have been consolidated within: • GSS 15 – Energy Control and

Isolation • GSG 1 – Isolation Overview • GSG 2 – Level 1 Isolation • GSG 3 – Level 2 Isolation • GSG 5 – Live Work

Keith Ashby 2

03/07/2019 J.Lee Minor formatting Keith Ashby 2.1

12/08/2019 J.Lee Amendment to Complex Isolation Process Flow Diagram in Appendix 2 Keith Ashby 2.2

Revision 2.1 | Group Safety Guideline 1 Isolation Overview | Date: 12/08/2019 Page I Custodian: Head of SHEQ & Risk | UNLESS VIEWED ON THE DMS THIS DOCUMENT IS UNCONTROLLED

TABLE OF CONTENTS 1. PURPOSE .................................................................................................................................. 1 2. SCOPE ....................................................................................................................................... 1 3. GENERAL REQUIREMENTS .................................................................................................... 1

3.1 Definitions .................................................................................................................................................. 1 3.2 Key Accountabilities ................................................................................................................................. 1

3.2.1 Authorised High Voltage Isolator ............................................................................................... 1 3.2.2 Authorised Isolator .................................................................................................................... 1 3.2.3 Authorised Lock Holder ............................................................................................................. 1 3.2.4 Permit Holder ............................................................................................................................ 1 3.2.5 Permit Issuer............................................................................................................................. 2 3.2.6 Radiation Safety Officer ............................................................................................................ 2 3.2.7 Recipient in Charge (RIC) ......................................................................................................... 2 3.2.8 Safety Observer ........................................................................................................................ 2 3.2.9 Work Area Owner ..................................................................................................................... 2

3.3 IGO Approved Equipment and Tags ......................................................................................................... 3 3.3.1 Personal Danger Lock .............................................................................................................. 3 3.3.2 Isolation Lock ............................................................................................................................ 3 3.3.3 Complex Isolation (Master) Lock ............................................................................................... 4 3.3.4 Radiation Isolation Lock ............................................................................................................ 4 3.3.5 High Voltage Isolation Lock ....................................................................................................... 4 3.3.6 Complex Isolation Box .............................................................................................................. 4 3.3.7 Commissioning & Testing Tag .................................................................................................. 5 3.3.8 Personal Danger Tag ................................................................................................................ 5 3.3.9 Isolation Tag ............................................................................................................................. 5 3.3.10 Out of Service Tag .................................................................................................................... 5 3.3.11 Information Tag ......................................................................................................................... 6 3.3.12 Hasp/ Scissor Clip..................................................................................................................... 6

3.4 Area of Control .......................................................................................................................................... 6 4. GENERIC STEPS FOR ISOLATION ......................................................................................... 6

4.1 Authorisation to Isolate ............................................................................................................................. 7 4.2 Identify the Isolation Points ...................................................................................................................... 7 4.3 Isolate and Lock ........................................................................................................................................ 8 4.4 Verification of the Isolation ....................................................................................................................... 8 4.5 Lock and Tag ............................................................................................................................................. 9

4.5.1 Personal Danger Lock and Tag ................................................................................................. 9 4.6 Monitor Isolation ........................................................................................................................................ 9

5. TYPES OF ISOLATION ............................................................................................................. 9 5.1 Simple Isolations ....................................................................................................................................... 9 5.2 Complex Isolation ...................................................................................................................................... 9

5.2.1 Complex Isolation Plan ........................................................................................................... 10 5.2.2 Authorised Isolator .................................................................................................................. 10 5.2.3 Isolation Verifier ...................................................................................................................... 11

5.3 Vehicle, Mobile Plant and Equipment Isolation ..................................................................................... 11 5.4 High Voltage Switching and Isolation .................................................................................................... 12

5.4.1 Switching Programs ................................................................................................................ 14 5.5 Radiation Isolation .................................................................................................................................. 14

5.5.1 Radiation Isolation Plan .......................................................................................................... 15 5.6 Critical Safety System Isolation .............................................................................................................. 15 5.7 Confined Space Entry Isolation .............................................................................................................. 16

6. LIVE WORK ............................................................................................................................. 16 6.1 Authorised Person for Live Work ........................................................................................................... 17 6.2 Overarching live Work Rules .................................................................................................................. 17 6.3 Testing and Commissioning Operations ............................................................................................... 17

6.3.1 Mobile Equipment and Maintenance Requirement .................................................................. 18

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7. PROCESS FOR HANDLING ISOLATION BREACHES ......................................................... 18 8. TRAINING AND COMPETENCE ............................................................................................. 19 9. RECORDS ............................................................................................................................... 19 10. RELATED DOCUMENTS ........................................................................................................ 20

10.1 Common Management System Standards ............................................................................................. 20 10.2 Group Safety Standards .......................................................................................................................... 20 10.3 Group Occupational Health Standards .................................................................................................. 20

LIST OF APPENDICES

APPENDIX 1 : SIMPLE ISOLATIONS FLOWCHART ......................................................................... 21 APPENDIX 2 : COMPLEX ISOLATIONS FLOWCHART .................................................................... 22 APPENDIX 3 : LIVE WORK ................................................................................................................. 23

LIST OF FIGURES Figure 1 – Determination of Isolation Type ............................................................................................................. 8

LIST OF TABLES Table 1 - Definition .................................................................................................................................................. 1 Table 2 – Key Accountabilities ................................................................................................................................ 1 Table 3 – IGO Approved Equipment and Tags ....................................................................................................... 3

Revision 2.2 | Group Safety Guideline 1 Isolation Overview | Date: 12/08/2019 Page 1 Custodian: Head of SHEQ & Risk | UNLESS VIEWED ON THE DMS THIS DOCUMENT IS UNCONTROLLED

1. PURPOSE

The purpose of this document is to provide an overview of the isolation processes and identify the standardised equipment implemented at IGO.

The purpose of IGOs isolation processes is to minimise the risk of injury and protect plant and equipment from damage caused by an uncontrolled release of energy.

2. SCOPE

IGO site and project (hereafter collectively referred to as sites) specific Isolation and Live Work System shall apply to and must be adhered by all employees and contractors working on the IGO project or site without exception.

This document must be read in conjunction with IGO GSS 14 – Defined Hazardous Work & Permit to Work and IGO GSS 19 – Electrical Safety.

3. GENERAL REQUIREMENTS

All IGO sites must have a documented Isolation and Live Work System known as an Isolation Management Plan (or equivalent). The Isolation Management Plan that shall comply with the requirements outlined in the IGO GSS 14 – Defined Hazardous Work & Permit to Work and this Guideline unless otherwise explicitly approved by the Site Manager (General Manager or Registered Manager).

3.1 Definitions

Table 1 - Definition

Term Definition

Complex Isolation Plan (CIP)

• a document which assesses and authorises an activity to proceed under controlled conditions, therefore, protecting personnel from energy sources

• a current and approved template that prescribes a checklist for the isolation sources of an equipment item or a well-defined task

• CIPs of designated systems, plant and equipment shall be maintained as controlled documents

• approved CIPs can be printed directly from the secure Isolate Database/ CIP Register but shall be reviewed and approved for currency prior to use

• the review of approved document-controlled CIPs to be prescribed by the accountable manager (minimum annually) to ensure accuracy.

Defined Hazardous Work IGO designated business processes or tasks that expose our people, the environment or the community to a risk of harm. Refer to IGO GSS 14 – Defined Hazardous Work & Permit to Work.

Defined Hazardous Work (DHW) Plans

DHW Plans as required by IGO GSS 14 – Defined Hazardous Work & Permit to Work E.g. Confined Space Entry Plan, Work at Height Plan and Hot Work Plan.

High Voltage (HV) Access Permit

Written authorisation which allows for work to be carried out on high voltage electrical installations and apparatus that is de-energised, proven dead, discharged and earthed. Refer to IGO GSS 19 – Electrical Safety.


Term Definition High Voltage Isolation Electrical isolation from all possible sources of electricity supply

where the voltage is greater than 1,000 volts alternating current (1000V a.c.) or 1,500 volts direct current (1500 V d.c.).

Incomplete Isolation Resulting from the failure to achieve a Positive Isolation. Isolation Points Isolation Points are defined points in a system, device or plant that

can be used to prevent the release of energy or place a barrier between a person and an energy source. They include valves, switches, circuit breakers, and blanking plates etc. so as to remove any potentially damaging energy from the plant to be worked on.

Keyed Alike A term used to describe a set of padlocks that can be opened by a single key.

Keyed to Differ A term used to describe a padlock that can be opened by a key that is unique to that padlock only.

Live Work All work performed on components of electrical apparatus that is not isolated, proved dead and earthed (see section Error! Reference source not found.).

Locking Device In circumstances where a hasp cannot be applied directly to an Isolation Point, a Locking Device must be placed on to an Isolation Point prior to the application of a hasp, an Isolation lock and Isolation Tag. The choice of Locking Device to be used is dependent on the nature of the Isolation Point.

P&ID’s (Pipe & Instrument Diagram)

A diagram which shows the piping of the process flow together with the installed equipment and instrumentation.

Positive Isolation Positive Isolation is a method of isolation that provides an absolute separation between the energy source and people, regardless of plant conditions, i.e. there is Zero potential of energy at the workplace. Positive Isolation requires the completion of the five-step process. See section 4- Error! Reference source not found..

Radiation Source Isolations

Situations where radiation devices or radio-isotopes need to be isolated. See section 5.5.

Shall and Should ‘Shall’ is to be interpreted as mandatory, and ‘Should’ is to be interpreted as highly desirable, but not mandatory.

Test for Dead A method to ensure equipment isolations are positive and therefore free from any energy source.

Voltage • extra low voltage means voltage that does not exceed 50 volts alternating current (50 V a.c.) or 120 volts ripple-free direct current (120 V ripple-free d.c.)

• low voltage means voltage that exceeds extra-low voltage and does not exceed 1000 volts alternating current (1000 V a.c.) or 1500 volts direct current (1500 V d.c.)

• high voltage means voltage that exceeds low voltage. Zero Energy State Where an energy source is brought to a state of zero potential

harm to person or equipment.


3.2 Key Accountabilities

Table 2 – Key Accountabilities

Role Responsibility

3.2.1 Authorised High Voltage Isolator

A high Voltage Electrician trained, deemed competent and authorised in in writing to carryout switching and earthing operations on High Voltage electrical apparatus, this includes: • development of switching programs (for equipment and area

of appointment) • verification of switching programs developed by another

Authorised High Voltage Isolator • issuing the permit to work for high voltage (HV access and

vicinity permits) and ensuring Recipient in Charge or Permit Holder understands HV permit conditions

• performing high voltage switching operations including identifying correct isolation points and effect positive isolations on HV systems

• advise the Appointed Electrical Supervisor of any situations likely to adversely affect the application of site-specific Safe Work Procedures. Refer to IGO GSS 19 – Electrical Safety.

3.2.2 Authorised Isolator

A person, trained, competent and authorised in specific areas as an Authorised Isolator to conduct Complex Isolations. Authorised Isolators are: • authorised to perform and confirm Complex Isolations and

de-isolations on plant and equipment where an approved Complex Isolation Plan (CIP) exists for that plant/equipment

• Authorised Isolators are permitted to plan, perform and confirm Complex Isolations where an approved Complex Isolation Plan does not exist

• must have full knowledge of their area of authority • each Authorised Isolator is issued with a keyed alike key for

(blue) Isolation Locks.

3.2.3 Authorised Lock Holder

A person trained, competent and authorised as an Authorised Lock Holder. Authorised Lock Holders: • are issued five (5) keyed alike (red) Personal Danger Locks

and Personal Danger Tags • can use Personal Danger Locks and Personal Danger Tags

to work under a Simple Isolation or Complex Isolation • for a Simple Isolation:

− are authorised to isolate, verify isolation, and de-isolate equipment

• for Complex Isolation: − can use Personal Danger Locks and Personal Danger

Tags to lock a Complex Isolation Box after the equipment is isolated and verified by an Authorised Isolator.

3.2.4 Permit Holder

The person in effective supervision of the job irrespective of their title or employer. Refer to IGO GSS 14 – Defined Hazardous Work & Permit to Work. Note (1) This may differ from one’s Line Supervisor who is one’s

supervisor for the purpose of performance management.


Role Responsibility

3.2.5 Permit Issuer The ‘Permit Issuer’ is the person who signs the Permit to Work and thus authorises the completion of the work. Refer to IGO GSS 14 – Defined Hazardous Work & Permit to Work.

3.2.6 Radiation Safety Officer

An appointed Licensee who has been authorised by the local jurisdictive regulatory body to manage radiation safety for the site e.g. for Western Australia, the Radiological Council of WA

3.2.7 Recipient in Charge (RIC)

A competent person authorised to be a ‘Permit Holder’ (see IGO GSS 14 – Defined Hazardous Work & Permit to Work) to whom an Authorised High Voltage Isolator has issued the High Voltage Access Permit or High Voltage Vicinity Permit for a specific job at a particular date and time. The Recipient in Charge shall control the activities of the Work Team in relation to tasks performed on isolated equipment. This includes: • acceptance of and compliance with the conditions of the HV

permit(s): − points of isolation / earthing − limits of the HV Permit − the proximity of any adjacent live apparatus

• notify HV Operator upon completion of works conducted under an HV Permit

• where work extends over one working shift, the RIC shall verify conditions of the HV Permit prior to work recommencing and Work Team applying Personal Danger Lock and Tags.

3.2.8 Safety Observer

Member of the ‘Work Team’ whose sole duty is to observe, control and warn personnel against an unsafe approach when work is being carried out adjacent to a live apparatus. Safety Observers shall: • determined by the Recipient in Charge • remain at the work site for the duration of the task being

performed • understand the job scope, conditions of the HV Permit,

potential hazards and associated emergency procedures • must be trained and hold current competency as outlined in

IGO GSS 19 – Electrical Safety.

3.2.9 Work Area Owner The ‘Work Area Owner’ is the manager or supervisor who is responsible for the normal day to day management of a physical area or part of an IGO site or project. For more information refer to IGO GSS 14 – Defined Hazardous Work & Permit to Work.


3.3 IGO Approved Equipment and Tags

Table 3 – IGO Approved Equipment and Tags

Item1 Use

3.3.1 Personal Danger Lock

Placed by an Authorised Lock Holder to give personal protection to the individual working on plant and equipment where the inadvertent change in state, release of energy or contaminant may cause harm • personal Locks are red in colour and issued as a maximum

of five (5) locks in a set • each set is keyed to differ. Each Personal Danger Lock in an

individual’s issued set is keyed alike • only the lock holder shall have the keys to their Personal

Danger Locks • personnel cannot use another individual’s Personal Danger

Lock • used in conjunction with a Personal Danger Tag to indicate

that an individual is working on isolated equipment or plant • Personal Danger Locks must only be attached to scissor clip

on isolation points (for simple isolations) or directly to a Complex Isolation Box.

For simple isolations, if there is more than one (1) isolation point, each person working on the task shall place the personal locks and tags on all points of isolation. This prevents deisolation an isolation point before the task is complete.

3.3.2 Isolation Lock

Used by an Authorised Isolator for complex isolations to identify specific isolation point completed and confirmed. Used to provide protection to a Work Team • Authorised Isolator applies isolation locks to isolation points

as detailed in the Complex Isolation Plan • Isolation Locks shall be orange in colour and keyed in alike

sets • locks should be indelibly marked (engraved or stamped)

with the Complex Isolation Box identification number • Isolation Lock must be used in conjunction with an (orange)

Isolation Tag after the isolation has been verified • an Isolation Lock without an accompanying Isolation Tag

indicates that the isolation process is currently under way and isolation has not been completed

• locks shall only be removed from an Isolation Point after all Personal Danger Locks and Personal Danger Tags have been removed and the task is completed.

1 The pictures presented in Error! Reference source not found. are illustrative of the general formats to be used and do not constitute a design prescription


Item Use

3.3.3 Complex Isolation (Master) Lock

Used by Authorised Isolator to lock a Complex Isolation Box, with Isolation Lock key inside, after all, isolations are completed and verified. Used during complex isolation process to provide protection to a working group • all Complex Isolation Locks must be blue in colour • all Complex Isolation Locks are keyed alike and distributed

only to Authorised Isolators • Authorised Isolator must hold the key to the Complex

Isolation Lock and must always be on their person • only an Authorised Isolator has the authority to remove a

blue complex isolation lock • complex Isolation Locks are only secured to a Complex

Isolation Box • must be removed only after all Personal Danger Locks and

Personal Danger Tags have been removed from the Complex Isolation Box and the Complex Isolation Plan is then cancelled.

3.3.4 Radiation Isolation Lock

Used by Authorised Radiation Source Isolator or Radiation Safety Officer to isolate a radiation device. • Radiation Isolation Lock is yellow in colour • Keyed to differ • Used with an Isolation Tag (orange) containing details of

Authorised Radiation Isolator who applied the isolation device

• Radiation Isolation Lock and Key are kept in the Complex Isolation Box and controlled by the Authorised Isolator.

3.3.5 High Voltage Isolation Lock

Used by Authorised High Voltage Isolators to indicate isolation performed under a High Voltage permit and in accordance with a Switching Program. • only an Authorised HV Isolator has the authority to place

and remove a purple High Voltage Isolation Lock • all HV locks are keyed alike and only issued to Authorised

HV Isolators • attached with an Isolation Tag (orange) • when Complex Isolation Box (CIB) is used as the tagging

point for the Work Team working on HV equipment, the CIB padlocks (orange) shall be used on isolation points in place of HV Isolation Lock (purple) and CIB secured with the HV isolation lock.

3.3.6 Complex Isolation Box

May also be known as a lock box or lockout station. • used for Complex Isolations • used to capture the key to the isolation padlocks, any

unused locks from the set and store the Complex Isolation Plan and associated document

• is secured using a Complex Isolation Lock (blue) and Isolation Tag (orange) to prevent unauthorised access to the isolation key when a Complex Isolation Plan is active.


Item Use

3.3.7 Commissioning & Testing Tag

Used when not possible to lock in a de-energised state (live work) and can only be used in conjunction with a risk assessment (JSEA or SWP) • only Authorised Person (see section 6.1) can attach/remove • only be removed by the individual that placed the tag • shall be placed on the Control Points by all personnel

carrying out the live work Note (2) If the tag is not visible on the control point, place the tag in

the most visible location of the cab for mobile maintenance • reusable with a photo ID is acceptable.

3.3.8 Personal Danger Tag

Used to identify the owner of a Personal Danger Locks • are predominantly white, red and black in colour • used in conjunction with a Personal Danger Lock (red) • only the individual whose name appears on the tag can

place or remove the tag • disposable Personal Danger Tags shall be destroyed after

use (single use only) • re-useable Photo ID tags are permitted • no person shall de-isolate or operate any type of equipment

whilst a Personal Danger Tag and Personal Danger Lock is in place.

3.3.9 Isolation Tag

An Isolation Tag, when attached, indicates that equipment is in a state that prevents the flow of energy • applied by Authorised Isolators • the tag must be attached to the Isolation lock and not

directly to the hasp • used in conjunction with Isolation Lock (orange) to Isolation

Points • used in conjunction with Complex Isolation Lock (blue) when

secured to the Complex Isolation Box for an active Complex Isolation Plan

• shall be orange and black in colour.

3.3.10 Out of Service Tag

Used to indicate unsafe or faulty plant or equipment, incomplete jobs and equipment that are to be kept out of service for operational reasons • shall be yellow and black in colour • must be attached to the Isolation Point of the plant or

equipment or where there is no Isolation Point, to the control point or if a component, securely fastened and clearly visible

• be attached at the changeover/end of a shift • supervisor to be informed of the reason for the out of service • shall only be removed by a suitably qualified or experienced

person authorised in the maintenance and repair of the plant and or equipment

• must be destroyed after use.


Item Use

3.3.11 Information Tag

Used to pass on general information or instruction about the plant or equipment it is attached to. • cannot be used in place of any other tag • can be placed by any person familiar with its purpose • shall be attached to all barricading to inform personnel of the

reason for the barricade.

3.3.12 Hasp/ Scissor Clip

• commonly known as a ‘scissor lock’ and is used for the attachment of multiple locks on an Isolation Point (maximum of 6 holes)

• daisy chaining or linking together of hasps is not permitted.

3.4 Area of Control

Some isolated systems, devices or plant may also be subject to access control in accordance with IGO GSS 7 - Barricades, Barriers and Signage.

The Area of Control shall be defined in the JSEA or SWP associated with the task to be completed or system, device or plant that is to be isolated. The Permit Holder/ Recipient in Charge shall be responsible for establishing, maintaining and removing the ‘Area of Control’ and ensuring that ALL persons working on the job have attached their Personal Danger Locks & Tags to the correct Isolation Point(s) or the appropriate Group Isolation Board.

Any person working within an ‘Area of Control’ associated with an isolation must follow the isolation procedure applicable to the job.

Note: Before working on a job that is subject to an Area of Control, all personnel, including operators, Dogman, Stand-by or Fire Watch person(s) and spotters etc, must speak with the Permit Holder or RIC, sign off on the relevant Permit to Work and JSEA, and apply their Personal Lock(s) and Personal Danger Tags.

Note: Line managers and visitors not working on the job may enter an ‘Area of Control' providing they have approval from the Permit Holder and that they remain with the Permit Holder all times. They do not need to sign on to the Permit to Work unless directed to do so by the Permit Holder.

4. GENERIC STEPS FOR ISOLATION

It is the responsibility of the assigned Authorised Isolator to ensure that they effectively complete the isolation. Isolation is deemed complete only if:

1. the isolation is authorised 2. all Isolation Points are correctly identified


3. each of the Isolation Points is secured with a Locking Device 4. each of the Isolation Points is locked and an Isolation Tag applied 5. the isolation is tested and confirmed at each Isolation Point.

At this stage, the isolation would be considered a “Positive Isolation” and individuals could then apply their Personal lock and Personal Danger Tag.

If one or more steps are incomplete, this is referred to as an ‘Incomplete Isolation’.

Positive Isolation shall remain in place as long as there are people potentially exposed to the hazard presented by the energy source. Working on a system, device, or plant that is subject to an Incomplete Isolation is regarded as a Live Work (see section 6).

4.1 Authorisation to Isolate

Only authorised persons may complete isolation to the isolation type that they have been trained, deemed competent and authorised to perform.

• High Voltage Isolations and switching shall only be completed by High Voltage Authorised Isolators, this requires separate training and authorisation by the appointed IGO electrical nominee (see Section 5.4)

• Radiation Isolations shall only be completed by Authorised Radiation Isolators as authorised by the Radiation Safety Officer (see Section 5.5)

• Complex Isolations shall only be completed by Authorised Isolators, authorisation is given by means of completing the complex isolation process outlined in section 5.2

• Simple Isolations can be conducted by Authorised Lock Holders, authorisation is required from the Work Area Owner (see Section 5.1).

4.2 Identify the Isolation Points

Isolation Points are initially identified during the risk assessment processes (refer to IGO GSS 3 – Safety Risk Management), workplace inspection and consultation with specific Owner Equipment Manufacturer (OEM) docs or subject matter expert.

• for Simple Isolation, the SWP, SWI or JESA for the task shall list the isolations required for the task, how to perform the isolation and method of achieving positive isolation, prior to the Authorised Lock Holder commencing the isolation

• for Complex Isolations: − if an approved document-controlled version of a Complex Isolation Plan (CIP)

exists, the Authorised Isolator confirms currency (i.e. no changes) or modifies the CIP accordingly Note: It is critical that pre-existing CIPs are checked for currency to ensure there are no changed conditions in the plant, and hence isolations required.

− if an approved CIP does not exist, an Authorised Isolator shall complete the site or project specific New Complex Isolation Plan Form, identifying the isolation point and method of isolations, the new CIP shall be checked by another Authorised Isolator (Verifier) prior to being used.

Defining which isolation type is required is illustrated in Figure 1 – Determination. All sources of energy to an isolation point shall be stopped, diverted or released prior to the actual isolation being performed.


Note: Designated isolation points must be clearly, permanently and uniquely labelled with the name of the equipment/plant by which it is known and/or the circuit or system over which they have direct control. Labels must be affixed to ensure clear visibility and where possible, attached to a permanent part of the equipment/plant that is not interchangeable.

Identify potential sources of energy via Personal Risk

Assessment processes, SWI, OEM docs, subject expert to

High Voltage energy?

High Voltage Isolation and

Switching required

Radiation source?

Radiation Isolation required

6 or more isolation points?

Complex Isolation required

6 or more personnel

working on task?Simple

Isolation required

NO

NO

NO

YES

YES

YES

YES

NO Figure 1 – Determination of Isolation Type

4.3 Isolate and Lock

Isolations shall be applied to the energy source and not rely on control switches. This involves the disconnection, de-energisation, de-activation or removal of potentially damaging energy sources, at the defined Isolation Points.

Isolation frequently includes ‘bleeding’ or similar processes to remove any residual energy trapped in the system e.g. a compressed air line may require bleeding, an acid line may require flushing or a cable may require electrical discharging by means of earthing.

Isolation Lock (orange) & Tag (orange) shall be attached by the Authorised Isolator in a manner to prevent reconnection, re-energisation, re-activation or replacement of the energy source

4.4 Verification of the Isolation

Isolation is incomplete until it has been tested and proved that the source of energy or potential energy has been physically isolated or controlled. Following the isolation of plant and equipment and prior to commencing the task, it is mandatory to ‘try’ (to operate the isolated


equipment) or ‘test for dead’ (for no residual energy) each isolation e.g. try to start plant or equipment, testing for voltage or checking pressure or flow indicators.

Note: Where isolation cannot be verified by normal test/try methods, then a formal risk assessment shall be carried out in order to identify, document, and implement the test/try process and controls applicable to that equipment.

Note: When testing the effectiveness of the isolation, care must be taken to ensure that no one is endangered if the isolation was to prove ineffective. Where such hazards exist, they must be identified along with relevant controls in either the Safe Work Procedure or JSEA.

4.5 Lock and Tag

Apply lock and relevant tags to the isolation control point(s) as identified in section 5 and test to ensure effective isolations (including removal of any stored energy/hang up in the system/s being worked on).

4.5.1 Personal Danger Lock and Tag

• Personal Danger Locks shall only be placed and removed by their owner, or by permission of the Site Manager (RM or GM)

• where Isolation cannot be verified by normal test/try methods, then a formal risk assessment must be carried out to identify, document, and implement the test/try process and controls applicable to that equipment including control of energy sources.

4.6 Monitor Isolation

If anything changes on the job or if new sources of energy are introduced, stop the job and re-assess the isolation.

5. TYPES OF ISOLATION

5.1 Simple Isolations

Simple isolations are undertaken by Authorised Lock Holders and can only take place:

• with Five (5) or less people are to be working on a piece of equipment • with Five (5) or less sources of energy requiring isolation.

If these requirements are exceeded, then complex isolation shall be required.

IGO site specific Isolation Management Plan (or equivalent) shall detail the requirements for completion of a task under simple isolation and tasks continuing over a shift. Refer to Error! Reference source not found. for the process flowchart for guidance.

5.2 Complex Isolation

Complex isolation is a controlled and documented method to remove equipment from service to enable it to be worked on by a group of people (greater than 5 working on a piece of equipment) utilising the Permit to Work system and incorporating the isolation of equipment as determined by a created and verified Complex Isolation Plan (CIP).

Complex isolations shall only be completed by Authorised Isolators who shall only isolate equipment for which they are trained and deemed competent to isolate.

IGO site specific Isolation Management Plan (or equivalent) shall detail the requirements for:


• completion of a task under a complex isolation • management of the Complex Isolation Box • tasks continuing over a shift • temporarily suspending/ reinstating a Complex Isolation for ‘Live Works’ e.g. testing or

inching • management of Complex Isolation Plans.

Refer to Appendix 2 for the process flowchart for guidance.

Note: Personal Danger Lock and Tag shall not be fastened to the Complex Isolation Box unless a Complex Isolation Lock (Blue) is fastened with an Isolation Tag (Orange) displaying the CIP number and the CIP is sighted by the Authorised Lock Holder undertaking the task.

5.2.1 Complex Isolation Plan

A completed Complex Isolation Plan (CIP) shall:

• contain a unique CIP number and Complex Isolation Box number used for the isolation

• state the reason for the Complex Isolation (why the isolation is being completed i.e. work to be conducted)

• list all equipment to be isolated • include relevant signatures in the “sign-off” sections confirming that Authorised

Isolator has carried out each isolation correctly and has signed each isolation step • include relevant signatures in the “sign-off” sections confirming that any HV Isolation

has been completed, including de-energisation, Isolation Tags & locks attached • include relevant signatures in the “sign-off” sections confirming that any Radioactive

Source Isolation has been completed, including de-energisation, Isolation Tags & locks attached

• Authorised Isolators must then complete the check boxes on the CIP and in so doing confirm that he/she has: − checked that the Permit Number and Lock Number are on the Isolation Tags − checked that Isolation Locks and Isolation Tags have been placed on the listed

isolation points − has secured Isolation Lock key in the Complex Isolation Box − has secured the Complex Isolation Box with a Complex Isolation Lock − confirmed that the Isolation is now effective See section 5.2.2 - Error! Reference source not found. and section Error! Reference source not found.5.2.3 - Error! Reference source not found..

5.2.2 Authorised Isolator

Prerequisite of Authorised Lock Holder is mandatory

• trained, competent and authorised as an Authorised Isolator • authorised to perform and confirm Complex Isolations and de-isolations on plant and

equipment where an approved Complex Isolation Plan (CIP) exists for that plant/equipment

• must place an Isolation Lock (orange), and Isolation Tag on each Isolation Point


• must place keys for all isolation locks in Complex Isolation Box and then lock the box with a Complex Isolation Lock (blue) and Isolation Tag (orange), placed to confirm energy source isolations have occurred (including removal of stored energy and or hang ups)

• Authorised Isolators are permitted to plan, perform, and confirm Complex Isolations where an approved Complex Isolation Plan does not exist

• Authorised Isolators are permitted to create and approve Complex Isolation Plans. Must have full knowledge of their area of authority

• Each Authorised Isolator is issued with a keyed alike key for Complex Isolation Locks (blue).

5.2.3 Isolation Verifier

The Isolation Verifier must be an Authorised Isolator. The role of the Isolation Verifier is to:

• independently verify the isolation locks have been correctly placed as per the isolation list. This means they are to check the isolations without the presence of the Authorised Isolator. This is to: − ensure the correct number of locks and tags are placed, as well as removed

following the deisolation of equipment − ensure the isolation keys are inside the Complex Isolation Box

• signs the applicable Defined Hazardous Work Plan(s) and Complex Isolation Plan to ensure compliance

5.3 Vehicle, Mobile Plant and Equipment Isolation

All work to plant and mobile equipment must be isolated to ensure the safety of personnel working in, on or around a vehicle, mobile plant or equipment.

A Vehicle, Mobile Plant or Equipment Isolation must be completed prior to:

• commencing, repair, service, maintenance or commissioning work • commencing a prestart Inspection on heavy vehicles, mobile plant and equipment.

Isolation Points and specific components to be de-energised are to be listed in the JSEA or SWP or OEM. Ensure that all sources of potential energy have been de-energised.

Note: Anyone approaching any Vehicle, Mobile Plant or Equipment must do so with extreme care and in accordance with the IGO GSS 9 - Traffic and Road Travel Management.

Note: Power generation equipment may have separate auxiliary power supplies which require additional isolation.

Note: If an Isolator is unsure as to the location of the Isolation Points or specific components that must be de-energised, it is incumbent upon them to speak to the Supervisor/ Recipient in Charge about this concern, and take such additional steps as required to accurately identify the Isolation Points.

Personnel working with vehicles, mobile plant or equipment shall:

• prior to work commencing, all persons working under an Isolation shall verify that all potential and actual hazardous energy sources have been identified, deactivated, dissipated (including removal of stored energy and or hang-ups) and isolated


• be trained and deemed competent to the level of isolation being performed • ensure Area of Control (see section Error! Reference source not found.) has been

defined (by means of cones, tape or barriers) in accordance with IGO GSS 7 - Barriers & Barricades − Note: As a minimum, the Area of Control shall equate to the vehicle or mobile

plant’s Foot Print − Note: Line managers and visitors not working on the job may enter an Area of

Control providing they do not enter the Equipment Footprint and have approval from the Permit Holder or Recipient in Charge. They shall be escorted by the Permit Holder / RIC at all times and do not need to lock on to the Isolation unless directed by the Permit Holder/ RIC

− People who are required to move Ancillary Equipment out of the Area of Control do not need to apply their Personal Danger Tags and Personal locks if given the all clear to proceed by the Permit Holder/ RIC

• do not approach the machine footprint unless the correct isolation is in place (i.e. personnel must be prevented from accidentally moving underneath the equipment or leaning/touching equipment while de-isolated)

• control circuitry must not be used as an isolation control point (i.e. emergency stops, push buttons, pull wire switches, interlocks and ignition switches)

• all hazardous energy sources are to be de-energised, isolated and locked out using IGO approved isolation devices

• if the equipment is not able to be brought back into service, an Out of Service tag shall be used at the isolation point to notify others of equipment fault.

Note: Where emergency maintenance is required, and the individual does not have a Personal Danger Lock and Tag, they shall conduct a risk assessment prior to working on the vehicle (for example, flat tyre).

See section Error! Reference source not found. for the requirements for testing, fault-finding, adjustment and calibration, i.e. energised movement of components of a vehicle, mobile plant or equipment.

5.4 High Voltage Switching and Isolation

High voltage apparatus and installations are potentially hazardous to personnel due to the risk of electric shock, electrocution and arc flash burns. This section should be read in conjunction with IGO GSS 19 – Electrical Safety.

The High Voltage (HV) Isolation is based on the following concepts:

• all situations where electrical work on high voltage installations or apparatus is required shall only be permitted under a valid High Voltage Access Permit (refer to IGO GSS 19 – Electrical Safety) and an accompanying High Voltage switching program

• all potentially damaging energy sources shall be isolated, proven dead and earthed prior to commencing work

• all HV isolations and switching shall be developed and performed by Authorised High Voltage Isolators − switching of single point and switching actions associated with opening/closing,

racking in/out or resetting circuit breakers, feeders or reclosers shall be performed by an Authorise High Voltage Isolator in the presence of a High


Voltage Safety Observer who has been trained and authorised, is familiar with HV switching activities and has a current CPR competency.

− distribution system switching functions shall be in accordance with a prepared and duly authorised Switching Program with two (2) appointed Authorised HV Isolators present when switching activities on the distribution system is performed

− Authorised High Voltage Isolator shall ensure the Recipient in Charge and all initial personnel signing onto the HV Access Permit are aware of the instructions, the limits of approach, the nearest point of supply and adjacent live apparatus

• all High Voltage installations or apparatus shall be operated in a safe manner as per the appropriate site-specific procedure and manufacturer’s instructions

• no person shall commence work on isolated High Voltage equipment until they have: − read, understood and signed onto the JSEA or SWP − read, understood permit to work conditions provided by the Authorised HV

Isolator or Recipient in Charge and signed the High Voltage Access Permit − applied their Personal Locks and Tags

• only competent and appointed personnel shall perform re-energisation as per the switching program once the: − Recipient in Charge has confirmed task is completed and all Personal Danger

Locks and Tags are removed − HV Access Permit is relinquished by the RIC − Authorised High Voltage Isolator verifies HV apparatus can be put back into

service, ensures all earths removed, performs reenergisation per the Switching Program and HV Permit closed in accordance with the site-specific Permit to Work process.

Isolation points include circuit breakers (excluding reclosers) or contactors in the racked-out position, drop out fuses and links, air break switches that provide a physical break in the circuit and can be verified by physical inspection.

HV Isolation Lock (purple) and Isolation Tag (orange) shall be used to confirm each switch or isolation point of the HV apparatus by the Authorised High Voltage Isolator. Where a Complex Isolation Box (CIB) is utilised, Isolation Locks (orange) from CIB shall be used on HV isolation points (in place of the purple HV Isolation Lock) and CIB shall be secured with the HV Isolation Lock (purple) in addition to the Complex Isolation Lock (blue) with Isolation Tag. Isolation Tag accompanying an HV Isolation Lock shall detail applicable HV Access Permit number, switching program number, date and electrical apparatus description.

Each site or project shall ensure a site-specific written procedure and associated training program to establish safeguards for work on or in close proximity to high voltage infrastructure and installations that comply or exceed this guideline and the permit to work requirements outlined in IGO GSS 19 – Electrical Safety. The site-specific procedure shall include the personal protective equipment required for high voltage switching, i.e. additional to the requirements outlined in IGO GSS 2 – Personal Protective Equipment and Clothing, additional information can be found in ENA NENS 09 - National Guideline for the Selection, Use and Maintenance of Personal Protection Equipment for Electrical Arc Hazards and AS/NZS 4836- Safe working on or near low-voltage electrical installations and equipment.


5.4.1 Switching Programs

Prior to the creation of a Switching Program the Authorised High Voltage Isolator must consider all relevant aspects of the work scope i.e. consulting the current and controlled reference switching program relevant to the equipment being accessed, up to date single line drawings, inspect the work area and all equipment to be isolated, earthed and made safe including provision of ‘Area of Control’.

Note: All switchboard doors or covers which provide arc fault containment shall be closed and secured when performing switching operations

A Switching Program shall:

• unique identifier/ program reference number • cross reference applicable HV Access Permit number • separately itemise switching actions, communication steps and instructions • supporting documentation e.g. current single line drawing for the area.

Approved Switching Programs shall have documented evidence of the following:

• prepared by an Authorised High Voltage Isolator • verified by a second Authorised High Voltage Isolator • authorised by the Appointed Electrical Supervisor for the site (or nominated delegate

in their absence).

In the event that an assigned Authorised High Voltage Isolator did not prepare the approved Switching Program, they shall satisfy themselves that the program can be carried out safely prior to undertaking the task.

All instances of emergency switching shall be notified to the Site Manager and recorded in the Electrical Log Book.

5.5 Radiation Isolation

The hazards associated with de-energising and isolation of radiation sources are contamination by radiation to the environment and to persons coming into contact with the source.

Each IGO site or project shall have present radiation sources on site listed in an appropriate register under the responsibility of a Radiation Safety Officer.

All radiation isolations shall be performed by an Authorised Radiation Isolator or the appointed Radiation Safety Officer. Radiation Isolation Locks are yellow in colour and keyed alike.

Radiation isolations shall be carried out as follow:

• Authorised Isolator obtains Radiation Isolation Plan, access SWP or completes a JSEA and records the preliminary survey of the area. Note: Where dose rate is greater than threshold indicated on the site-specific Radiation Management Plan (guidance 25µSv/h) the Radiation Safety Officer shall be notified, and special precautions may be stipulated prior to workers being permitted to the area (e.g. requirement for Personal Dosimeters)


• radiation sources are isolated using a Radiation Lock (yellow) in conjunction with an Isolation Tag (orange)

• Authorised Radiation Isolator conducts a second survey and records on the Radiation Isolation Plan. If the reading is below the maximum allowable threshold as per the site-specific Radiation Management Plan (guidance <10µSv/hr at 1 minute and <500µSv/hr) then the Radiation Permit is authorised

• Positive Isolations shall be obtained and in accordance with the process outlined for simple isolation (see section 5.1) or complex isolations (see section 5.2) Note: If part of a Complex Isolation, Authorised Isolator shall have prevailing authority over the Authorised Radiation Isolator in terms of the overall management of the work area

• The Radiation Isolation Plan is then handed over per the Permit to Work process • Authorised Radiation Isolator or Radiation Safety Officer undertakes ongoing radiation

surveys as nominated on the Radiation Isolation Plan • once notified work is complete, Authorised Radiation Isolator then de-isolates and re-

energises all isolation points as nominated on the Radiation Isolation Plan.

Note: If work involves removing, installing or transportation of a gauge then approval is required by the Site Manager (or their nominated delegate) and supervised by the Radiation Safety Officer.

5.5.1 Radiation Isolation Plan

A completed Radiation Isolation Plan shall:

• contain a unique Radiation Isolation Plan number and if applicable, the Complex Isolation Plan (CIP) number and Complex Isolation Box number used for the isolation

• state the reason for the Radiation Isolation (why the isolation is being completed i.e. work to be conducted)

• nominated Isolation Points • include relevant signatures in the “sign-off” sections confirming that any Radioactive

Source Isolation has been completed, to move radiation source (if applicable), hand back to Authorised Isolator (where involved in complex isolations) and de-energisation

• preliminary survey records for the area • logging of radiation dosages from personal dosimeters (where identified as an

additional requirement).

5.6 Critical Safety System Isolation

Where individual pieces of equipment that perform a critical safety function (personal safety or process safety) are to be isolated while the associated plant continues to operate the following procedure shall be followed:

• a Permit to Work shall be generated to undertake this task • a procedure for the isolation of critical equipment (either in the form of a JSEA or

SWP) must include contingency planning to ensure that the hazards created by the isolation of a critical control are either replaced by an alternate or mitigated in accordance with the hierarchy of controls


• the JSEA or SWP shall include the requirement for all relevant notifications to be made to interested parties (including insurers)

• the JSEA or SWP shall be approved by the relevant Work Area Owner (or their nominated delegate) prior to job commencement.

Critical Safety System isolations include:

• instruments associated with critical alarms/control circuits • fire and gas detection or suppression systems • emergency shutdown devices • pressure relief valves, explosion doors/discs etc. on equipment that will continue to

operate or be under pressure • emergency communication and warning systems • safety shower and eyewash supplies.

5.7 Confined Space Entry Isolation

All potentially hazardous services shall be isolated prior to entry into a confined space and shall comply to the requirements outlined in AS 2865-2009 Confined Spaces, Safe Work Australia Code of Practice for Confined Space and IGO GSS 14 – Defined Hazardous Work & Permit to Work.

Methods of isolation are as follows:

• removal of a valve, spool piece or an expansion joint in piping leading to, and as close as practicable to, the confined space. Blank or cap the open end of the piping leading to the confined space. The blank or cap should be identified to indicate its purpose Note: Blanks or caps should be of a material that is compatible with the liquid, vapour or gas with which they are in contact. The material should also have sufficient strength to withstand the maximum operating pressure, including surges that can build up in the piping

• insertion of a suitable full-pressure spade (blank) in piping between the flanges as close as practicable to the confined space. The full-pressure spade (blank) should be identified to indicate its purpose

• closing, locking and tagging at least two valves in the piping leading to the confined space. Any drain or vent valve between the two closed valves must also be locked open as part of this method

• if the confined space has agitators, blades and other moving equipment, consider de-energising the equipment, chocking, wedging, chaining or removing these parts

• Work Area Owner shall approve any proposed alternative method of isolations to safely complete the confined space task via a formalised by a documented risk-based approach (minimum JSEA) prior to commencement.

6. LIVE WORK

‘Live Work’ is any task where someone has to work on a system, device or plant after removing any protection device (including guards, covers etc); or where you identify exposure to any unprotected potentially harmful energy source, and an isolation cannot be effected.

‘Live Work’ specifically includes work on any equipment that is required to be energised and or is operational whilst work is carried out with any physical barrier removed, or circumstances where it is


not possible to achieve a Zero Energy State without protecting people from the energy via permanent devices, or where you are not able to use a Locking Device or test the isolation. This includes testing, adjustment, calibration and commissioning activities.

Competent Safety Observer and LV rescue kits must be present at the work location when testing or live work activities are in progress.

6.1 Authorised Person for Live Work

The only personnel permitted to complete live work are those:

• authorised by the Work Area Owner • are competent in the type of work to be completed (i.e. is a suitably qualified or

experienced person in the maintenance and repair of the plant and or equipment) • have read and understood the JSEA or SWP (and OEM manual, if applicable).

6.2 Overarching live Work Rules

• live work may only occur where there is no practical alternative to undertaking work on isolated plant, machinery or vehicles

• live work shall only be used in conjunction with a detailed and specific JSEA or SWP Note: ‘Live Work’ is classified as Defined Hazardous Work, and therefore deemed to be a high-risk task. Consequently, the responsible Work Area Owner shall be involved in the review and approval of the JSEA or SWP

• all live work shall be subject to direct supervision. Specifically, a Recipient in Charge shall be assigned to the job (this role can a member of the Work Team completing the task)

• a Safety Observer shall be present during ‘Live Work’ where required, subject to the requirements as mandated in the JSEA or SWP − The rationale for not using a Safety Observer shall be documented in the SWP

• personnel working on live plant, machinery or vehicles \ shall adhere to the site-specific process for testing and commissioning operations (see section 6.3)

• Commissioning & Testing Tags shall only be removed by the individual who has placed the tag

• some jobs are predefined as Live Work, these jobs are listed in Appendix 3 • some Live Work tasks are assessed as low risk, see Appendix 3.

6.3 Testing and Commissioning Operations

The Commissioning & Testing Tag is intended to prevent change in the state of equipment undergoing live work or inadvertent operation where there is personnel conducting live work. Prior to placing a Commissioning & Testing Tag, permission by the Work Area Owner shall be obtained.

The operator shall receive a full explanation of work and method of communication controls as per risk assessment where equipment controls are to be utilised.

• when operating equipment under use of Commissioning & Testing Tag, all Personal Danger Tags, Personal locks, Isolation Tags and Locks shall be removed from the Isolation Point

• a Commissioning & Testing Tag shall be used for live works


• Commissioning & Testing Tag shall be placed on Control Points by all personnel carrying out the live work

• Commissioning & Testing Tags shall not be placed on a piece of equipment for more than one task

• when carrying out live work, barricading shall be used as determined by the risk assessment to prevent the entry of unauthorised personnel (Refer to IGO GSS 7 -Barricades, Barriers and Safety Signage)

• Commissioning & Testing Tag shall not substitute for a Simpler or Complex Isolation • no person shall remove another person’s Commissioning & Testing Tag (except as

allowed under the missing person process, see section 7) • an Out of Service Tag shall be removed from the Isolation Points of the duration of

the live work • where live work is to continue over more than one shift OR at the completion of the

live work activity, Commissioning & Testing Tag shall be removed and if equipment is not available for service (i.e. work continue per the simple or complex isolation permit to work), a new Out of Service Tag is to be applied informing the current status of the equipment.

6.3.1 Mobile Equipment and Maintenance Requirement

• a Recipient in Charge (i.e. the person who has control over the operation of the mobile equipment during maintenance works) shall be identified for the Work Team

• the RIC shall place a Commissioning & Testing tag both on the primary Isolation Point and on the principal control point in the cab, e.g. steering wheel, control lever or ignition key.

• any person coming on to the job after it has started shall make positive communication with the RIC.

7. PROCESS FOR HANDLING ISOLATION BREACHES

All isolation breaches shall be reported as a safety related incident, investigated in accordance with IGO GSS 1 – Incident Reporting and Management and recorded in INX InControl with the appropriate corrective actions. Investigation outcomes will determine appropriate disciplinary action.

IGO sites and projects shall include in the site-specific Isolation Management Plan (or equivalent) steps to be taken in the event of the following isolation breach scenarios:

• equipment is incorrectly isolated • failure to place lock(s) appropriate to isolation type (e.g. orange Isolation Lock, blue

Complex Isolation Lock, Radiation Lock, HV Lock) • failure to sign on/off permit to work • whenever there is an unauthorised departure from any instructions on any permit to

work isolation process (e.g. missing person, Authorised Isolators, Permit Holder, RIC etc.)

• isolation fails even though the isolation has been applied correctly • missing / misplaced key for:

− Personal Danger Lock − Isolation Lock − Complex Isolation Lock


• failure to place their Personal Danger Tag and or Personal Lock on an Isolation Point as required or before commencing an operation that requires the equipment to be isolated

• at the completion of work, failure to remove a Personal Danger Tag and or Personal lock for which they are responsible

• removal of a Personal Danger Tag and or Personal Lock that has been placed by another person (excluding appropriate authorisation for missing person process)

• removal of an Isolation Lock or Tag, or otherwise operating an item of plant or equipment which has been isolated.

Any person who identifies a breach must immediately advise their Supervisor. The Work Area Owner or delegate to determine nature of isolation, associated locking devices and status for the permit to work (e.g. locking devices removed from service, permit to work suspended or cancelled).

Where a padlock is to be removed (e.g. due to a missing person or key) documented authorisation detailing all aspects of the removal process shall be obtained from the IGO Site Manager (or nominee).

An incident investigation must be instigated immediately upon the notification of a breach of the Isolation Procedure.

8. TRAINING AND COMPETENCE

The site shall ensure that all personnel understand the isolation and tagging requirements associated with the site’s operational areas and Permit to Work process. This should be covered in the site or project specific induction.

All personnel expected to work in areas or roles that will require the use of the Isolation and Tagging process must be trained in its application and must be competency assessed.

All personnel who are required to work using Isolation and Tagging are required to be trained, assessed as competent and authorised to Authorised Lock Holder level as a minimum.

A practical component must be completed such that personnel are exposed to “real life” situations and equipment.

Training records shall be kept as per IGO CMSS 6 - Training, Competence and Awareness.

9. RECORDS

All records and associated documentation related to isolations shall be kept and maintained by sites and shall be readily retrievable upon requests. Refer to IGO CMSS 8 - Document Control Records & Data Management.

Sites shall maintain and retain records in relation to:

• Risk Assessments, Safe Work Procedures / Safe Work Instructions, Isolation Plans, Permit to Works and associated documentation for isolations shall be kept for 2 years or as specified by local legislative requirements

• approved Complex Isolation Plans, Switching Programs • the keeping of registers, inspection data and maintenance records, calibration

certificates etc. for all safety equipment • the licenses, training and competency assessments of those involved in isolations

and specific Defined Hazardous Work(s) including dates of expiration and renewal.


Training records shall be kept as per IGO CMSS 6 - Training, Competence and Awareness.

10. RELATED DOCUMENTS

10.1 Common Management System Standards

• CMSS 03 - Risk Management • CMSS 06 - Training, Competence and Awareness • CMSS 08 - Document Control Records & Data Management. • CMSS 12 - Management of Change

10.2 Group Safety Standards

• GSS 01 - Incident Reporting and Management • GSS 03 - Safety Risk Management • GSS 07 - Barricades, Barriers and Safety Signage • GSS 14 - Defined Hazardous Work & Permit to Work • GSS 19 – Electrical Safety

10.3 Group Occupational Health Standards

• GOHS 2 - Treatment of Electric Shocks


APPENDIX 1: SIMPLE ISOLATIONS FLOWCHART

Work scope review

Work assigned or identified

Energy discovered?

Each individual Authorised Lock Holder:• verifies isolation and stored energy

dissipated• places Personal Danger Lock and Tag

to the scissor clip at each isolation point

Commence work

Create JSEA and have approved:• List isolation(s) required for the task• How to perform isolation(s)• Methods for achieving positive

isolation

Identify hazardous energy sources to be isolated

Does a SWP/ SWI exist for the task? Access SWP/ SWI

Review SWP/ SWI

Isolated to design and zero energy

attained?NO

Isolation still required?

Remove Personal Danger Lock and Tag

from Scissor Clip

Remove Scissor Clip from isolation points

De-isolate equipment

Re-energise equipment or leave in a state of readiness for owner

Remove Personal Danger Lock and Tag from Scissor

Clip

Inform Supervisor/Work Area Owner work complete and equipment to remain

isolated

Place Out of Service Tag onto Scissor Clip at each

Isolation point

NO

YES

Work complete

NO

Authorised Lock Holder



STOP and raise an incident report

YES

NO

Work AreaOwner


Apply isolation as per risk assessment:1. Request to isolate equipment2. Stop/shutdown equipment3. Apply Scissor Clip (hasp) to Isolation Point to isolate (drain, purge flush)4. Test/ Try5. Lock Personal Danger Lock and Tag to scissor clip



YES

Authorised Lock Holders

(max 5 people)

Work AreaOwner



(max 5 people)

Work AreaOwner


APPENDIX 2: COMPLEX ISOLATIONS FLOWCHART

Work scope review

Work assigned or identified

Does an APPROVED Complex Isolation Plan (CIP) exist for the

task?Access doc-controlled CIP

Confirms currency of CIP (no modifications or changes to

conditions)

Independently check all isolations are correctly applied and conduct

Test/ Try for zero energy attained?

YES

Authorised Isolator Permit Holder

Identify equipment, energy sources and isolations points

Complete a new Complex Isolation Plan Form

Check the CIP is fit for purpose

Authorised Isolator

(VERIFIER)

Authorised Isolator

Authorised Isolator

Authorised Isolator

Authorised Isolator

(VERIFIER)

Apply isolations as per CIP:1. Stop/shutdown equipment2. Isolate (drain, purge flush) & apply Isolation Lock (orange)3. Tag (Orange Isolation Tag)4. Sign CIP as completed

YES

Authorised Isolator

STOP, inform Authorised Isolator and seek alternate

Isolation PointAuthorised Isolator

(VERIFIER)

NO

NO

YES

Sign CIP as checked, place Isolation Lock Key to isolation and any spare (along with excess unused Isolation

Locks) and CIP into the Complex Isolation BoxAuthorised Isolator

Complex Isolation Box is locked with the Complex Isolation Lock (blue) and

Isolation Tag (orange)

Authorised Isolator

Complex Isolation complete and CIP active

Hands Complex Isolation Board and associated documents to Permit Holder for the ‘Permit to

Work’ process

Test for dead and zero energy via Field Checks and work

area Inspection (if required)

Permit Holder then applies their own red

lock and Tag

Energy discovered?

Commence work

STOP, inform Authorised Isolator and seek alternate

Isolation Point

YES

NO

Permit Holder


Work AreaOwner


APPENDIX 3: LIVE WORK Defined Live Work

IGO regard the following tasks as Live Work and hence shall be subject to a Safe Work Procedure or JSEA:

Activity or Description • Conveyor belt tracking • Pump impellor adjustments • Larox filter: cloth drive/cloth replacement, valve movements • Changing Inter-tank Carbon-in-Leach (CIL) screens while tanks are flowing • Using test equipment within safeguarded areas, or where guards or covers are

removed, while the equipment is operating • Adjustments on recycle crushers • Unblocking the sag mill ball counter • Unblocking sump pumps (air spears), flushing or unblocking lines • Refuelling mobile equipment while it is the engine is operating (wheels chocked)

Live Work Exemptions

The following tasks are exempt from the Live Work rules.

Activity or Description • Refuelling light vehicles • Conducting a prestart on a light vehicle • Draining tanks or working on lines (pipes) • Operating manual valves • Lifting with cranes (as per site specific cranes lifting & equipment management

plan) • Using airlines for pneumatic tools • Adjusting gland packing

group safety guideline 1 isolation overview

Documents