Military reference books and manuals (2009-2023, Volume 6)

Title: Procedure for:

Doc No: UNIF-HSE-PR0-104-C2

Authorisation

Rev No: C2

Page 4 of 14

Dated: October, 2004

Originating Dept: HSE

 Ensuring that the Permit to Work system is subject to active assurance.

 Acting upon all recommendations of the assurance process and proposing

system improvements.

2.2 AREA AUTHORITY

Personnel fulfilling the function of Area Authority are responsible, within the limits of

their designated area, for the:

 Safety of personnel and the safe execution of all activities

 Operation of the Permit to Work system and supporting procedures.

In addition, as an Affected Area Authorities

(an Area Authority whose area of

responsibility will be affected by work being undertaken principally in another area

and under the control of another Area Authority) they are required to be aware of,

and be in agreement with, all work activities taking place that have a potential impact

on their particular area of responsibility and control.

The Responsible Electrical Person will act as affected Area Authority for any

electrical work carried out on the site.

2.3 PERFORMING AUTHORITY

The Performing Authority is the person who requires the work to be done or who will

perform the work. Performing Authorities shall act as the senior person in charge of

work controlled by a Permit to Work and are responsible for safety at the work site.

2.4 AUTHORISED GAS TESTER LEVEL 2

An Authorised Gas Tester Level 2 is authorised to test for the presence of flammable

gas or vapour.

2.5 AUTHORISED GAS TESTER LEVEL 1

An Authorised Gas Tester Level 1 is authorised to test for the presence of flammable

gas or vapour, toxic gas and oxygen. In particular the Authorised Gas Tester will

document and record gas test results as defined in UNIF-HSE-PRO-108 - Confined

Space Entry.

2.6 AUTHORISED LEAK TESTER

An Authorised Leak Tester is authorised to test for the presence of leaks. In

particular the Authorised Leak Tester will perform document and record leak test

results as defined in UNIF-HSE-PRO-241 - Leak Testing

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Title: Procedure for:

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Authorisation

Rev No: C2

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Dated: October, 2004

Originating Dept: HSE

2.7 ISOLATING AUTHORITY

2.7.1 Process Isolators

Process isolators are responsible for the identification, specification, application,

removal and recording of Process Isolations (Process / Mechanical Isolations).

2.7.2 Electrical Isolators

Electrical Isolators are responsible for the specification, application, removal and

recording of Electrical Isolations (Control/ Electrical/ Telecom Isolations).

2.7.2.1 Senior Authorized Electrical Personnel (SAEP)

Electrical personnel who have been formally assessed by the site Electrical

Technical Authority (or delegate), and authorized by the OIM / Site Manager / Site

Controller, to switch, isolate and test electrical equipment with voltage levels up to

and greater than one thousand volts (1000v), can act as an isolating authority under

the Safe Systems of Work for electrical systems with voltage levels up to and greater

than 1000V. As described in UNIF-HSE-PRO-106 Procedure for: Energy Isolation -

Electrical

Note: Where switching or isolation interfaces with an external organization the authorization

may also include an assessment by the external organization or the State Energy Control

2.7.2.2 Authorized Electrical Personnel (AEP)

Electrical personnel who have been formally assessed by the site REP, and

authorized by the OIM / Site Manager / Site Controller, to switch, isolate and test

electrical equipment with voltage levels less than one thousand volts (1000V) an act

as an isolating authority under the Safe Systems of Work for electrical systems with

voltage levels less than 1000V. As described in UNIF-HSE-PRO-106 Procedure for:

Energy Isolation - Electrical

2.7.2.3 Authorized Instrument Personnel (AIP)

Instrument personnel who have been formally assessed by the site REP, and

authorized by the OIM / Site Manager / Site Controller to switch, isolate and test

control, instrument and telecom equipment with voltage levels less than fifty volts

(50V), can act as an isolating authority under the Safe Systems of Work for control,

instrument and telecom systems with voltage levels less than 50V phase to earth.

As described in UNIF-HSE-PRO-106 Procedure for: Energy Isolation - Electrical

2.7.2.4 Competent Isolator (CI)

In special circumstances individuals can be assessed as competent isolators by the

site REP and authorized by the OIM / Site Manager / Site Controller for specific items

of equipment providing that they have completed the formal training and have been

assessed as competent, as described in UNIF-HSE-PRO-106 Procedure for: Energy

Isolation - Electrical

2.8 FIREWATCHER

Personnel competent in the use of fire fighting equipment that they are expected to

handle as described in UNIF-HSE-PRO-103 Procedure for: Permit To Work

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Authorisation

Rev No: C2

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Dated: October, 2004

Originating Dept: HSE

2.9 PERMIT TO WORK COORDINATOR

Personnel authorized to act as a permit to work coordinator (some times this function

is covered by the site control room operator and the area authority) as described in

UNIF-HSE-PRO-103 Procedure for: Permit To Work

2.10 RADIOLOGICAL PROTECTION SUPERVISOR

Personnel authorised to act as a Radiological Protection Supervisor are authorised to

supervise the handling of radioactive sources and test for radiation levels as

described in UNIF-HSE-PRO-205 Radioactive Sources Management.

2.11 RESPONSIBLE ELECTRICAL PERSON (REP)

This is a role under the ‘Safe System of Work’ or ‘Permit To Work system’ to clearly

identify which authorized person, has the responsibility for the electrical system. The

REP is nominated by the OIM / Site Manager / Site Controller from those persons

having the highest level of authorization required for that site.

The REP will:

 Approve any switching programs

 Countersign permits with electrical content where the Area Authority isn’t

electrically competent, ensuring that the isolation has been correctly designed

and the Isolating Authority has the appropriate authorization level for the work

 Assess and recommend site personnel for authorization to AEP, AIP, and CI

As described in UNIF-HSE-PRO-103 Procedure for: Permit To Work and

UNIF-HSE-PRO-106 Procedure for: Energy Isolation - Electrical

3 TRAINING AND COMPETENCY REQUIREMENTS

The requirements for training, competency evaluation and authorisation are given in

Table 1: Training and Competency Requirements for Authorisation.

Function

Training

Competency Evaluation

Valid

Authorised

(yrs)

Site Manager/ Site

Permit to Work Area

Course evaluation test plus

Operations

Controller/ OIM

Authority.

a minimum of 2 years

Manager

experience as an Area

Authority

Area Authority

Permit to Work Area

Course evaluation tests and

Site Manger/

Authority.

interview by Site Manager

Site Controller/

Confined Space Entry.

Offshore

Energy Isolation.

Installation

Task Risk. Assessment.

Manager

Performing

Permit to Work.

Course evaluation test and

Area Authority

Authority

Performing Authority

interview by an Area

Authority

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Authorisation

Rev No: C2

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Dated: October, 2004

Originating Dept: HSE

Function

Training

Competency Evaluation

Valid

Authorised

(yrs)

Gas Tester Level 2

Gas Tester level 2

Course evaluation test and

Area Authority

practical test by a Gas

Tester Level 2

Gas Tester Level 1

Course evaluation test and

Site Manger/

practical test by a Senior

Site Controller/

Safety Adviser

Offshore

Installation

Manager

Authorised Leak

Permit To Work

Course evaluation test and

Site Manger/

Tester

Performing Authority

interview by an Area

Site Controller/

Gas Tester Level 1

Authority

Offshore

Course evaluation test and

Installation

practical test by Senior

Manager

Safety Adviser

Competent Isolator

Permit to Work.

Assessment by Site

Site Manger/

Responsible Electrical

Site Controller/

Performing Authority

person

Offshore

Energy Isolation

Installation

Written statement of

Specific training

Manager

competence by REP

Endorsed by the Electrical

technical authority.

See Appendix D for

Electrical Assessment Areas

Authorised

Permit to Work.

Assessment by Site

Site Manger/

Instrument Person

Performing Authority

Responsible Electrical

Site Controller/

Person (REP)

Offshore

Energy Isolation.

Installation

Comp’Ex (on

Written statement of

Manager

hydrocarbon sites)

competence by REP

See Appendix D for

Electrical Assessment Areas

Authorised

Permit to Work.

Assessment by Site

Site Manger/

Electrical Person

Performing Authority

Responsible Electrical

Site Controller/

person

Offshore

Energy Isolation.

Installation

First aid

Written statement of

Manager

competence by the (REP)

Comp’Ex (on

hydrocarbon sites)

See Appendix D for

Electrical Assessment Areas

Senior Authorised

Permit to Work.

Assessment by BP

Site Manger/

Electrical Person

Performing Authority

Electrical Technical authority

Site Controller/

/ or nominated delegate

Offshore

Energy Isolation.

Installation

First aid

Written statement of

Manager

competence by BP Electrical

Comp’Ex (on

Technical authority / or

hydrocarbon sites)

nominated delegate

HV switching

See Appendix D for

Electrical Assessment Areas

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Authorisation

Rev No: C2

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Dated: October, 2004

Originating Dept: HSE

Function

Training

Competency Evaluation

Valid

Authorised

(yrs)

Responsible

Permit to Work. Area

Assessment by BP

Site Manger/

Electrical Person

Authority

Electrical Technical authority

Site Controller/

/ or nominated delegate

Offshore

Energy Isolation.

Installation

First aid

Written statement of

Manager

competence by BP Electrical

Comp’Ex (on

Technical authority / or

hydrocarbon sites)

nominated delegate

HV switching (if

applicable for the site)

See Appendix D for

Electrical Assessment Areas

(which will depend on site

voltage levels

Process Isolator

Process Isolation

Assessment by Process

Site Manger/

Supervisor

Site Controller/

Offshore

Installation

Manager

Radiological

Radiological Protection.

Course and written

Site Manger/

Protection

examination by external

Site Controller/

Supervisor

trainer

Offshore

Installation

Manager

Fire Watcher

Permit to Work.

Evaluation test and

Area Authority

Performing Authority

interview by an Area

Confined Space Entry.

Authority

Permit to work Co-

Permit to Work.

Evaluation test and

Area Authority

coordinator

Performing Authority

interview by an Area

Authority

Confined Space Entry.

Energy Isolation.

Task Risk Assessment.

Table 1: Training and Competency Requirements for Authorisation

4 AUTHORISATION PROCESS

Note: No person shall be authorised under this procedure until they have completed

the required training and the competency evaluation detailed in Table 1:

Training and Competency Requirements for Authorisation and where

required a written statement of competency has been received from the

assessor by the authoriser.

4.1 AUTHORISATION ASSESSMENT

For authorization for Isolation Authorities a candidate who successfully meets the

pre-requisite standards, will be assessed further by the Process Supervisor or

Responsible Electrical Person or the Electrical Technical Authority (or nominated

delegate)

For Isolation Authorities-Electrical this part of the assessment will be based on

written, oral and practical demonstration of knowledge.

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Authorisation

Rev No: C2

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Dated: October, 2004

Originating Dept: HSE

The candidate will provide written responses to a selection of question relating to

Safe Systems of Work and facility specific information. The site will retain these

responses.

The candidate will also be asked to demonstrate on site appropriate site knowledge,

and how to apply the Safe Systems of Work to an appropriate operational exercise.

The REP will assess competency of Authorized Instrument Persons

(AIP),

Authorized Electrical Persons (AEP) and Competent Isolators (CI). The Electrical

Technical Authority (or delegate) will assess the competency of candidates for the

Senior Authorized Electrical Persons (SAEP) or those persons who will full fill the role

of Responsible Electrical Person (REP).

4.2 LETTER OF AUTHORISATION AND STATEMENT OF COMPETENCY

Authorisation is recognised by a letter to the individual (see Appendix A general

authorization and Appendix B for electrical authorisation), clearly stating the level and

duration of authorisation. If required, the competency assessor shall supply a written

statement of competency to the authorizer

(see Appendix C for electrical

competency).

4.3 AUTHORISATION VALIDITY

Authorisation shall be valid for the maximum duration stated in Table

1 which

corresponds with the refresher training requirements associated with the duties.

Note: Authorisation shall cease if the person moves to a new post, even if the new

post is on the same site.

4.4 AUTHORISATION REGISTER

The Site Manager/ Site Controller/ Offshore Installation Manager shall maintain a

Documentum and accessed via the Azerbaijan Business Unit web site. This register

shall be available within the facility at the location from where permits are normally

issued.

4.5 RECORDS

The site will retain the assessment record sheet and its attachments. The assessor

will issue Competence Certificates to the candidate and the Site Manager/ Site

Controller/ OIM as appropriate and a copy issued to the successful candidate. The

site will retain the original certificate.

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Authorisation

Rev No: C2

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Dated: October, 2004

Originating Dept: HSE

APPENDIX A GENERAL LETTER OF AUTHORISATION

{Date}

Letter of Authorisation Under the Safe Systems of Work Procedures

This letter authorises {full name

} to under take the duties of {postion

} at {site/ facility

}in accordance with the requirements of BP AZBU

(delete as appropriate from the listing of Permit to Work System

(Document No.UNIF-HSE-PRO-103) UNIF-HSE-PRO-106 Energy

Isolation - Electrical; UNIF-HSE-PRO-107 Energy Isolation - Process;

UNIF-HSE-PRO-108 Safe Systems of Work - Confined Space Entry;

UNIF-HSE-PRO-201 Gas Detection Equipment; UNIF-HSE-PRO-205

Radioactive Sources Management. This authorisation is valid for a period

} years or until termination of employment in your present

position.

For BP Azerbaijan/Georgia

{Name}

Signature: ………………………….

{Authorizing post holder}

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Authorisation

Rev No: C2

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Dated: October, 2004

Originating Dept: HSE

APPENDIX B ELECTRICAL AUTHORISATION CERTIFICATE

Electrical Authorization

Certificate

Add individuals NAME:

…………………………………………………………………………………………………………

Was found to be competent to operate safely in the following areas

Mechanical isolations for systems of less than 1000V

Control and Instrumentation systems with voltages less than 50V

Electrical circuits with voltages less than 1000V

Electrical distribution systems with voltages less that 1000V

Electrical circuits with voltages less that 33kV

Electrical distribution systems with voltages less than and including 33kV

Electrical distribution systems with voltages of 110KV

Specific equipment type at voltage level See attached training certificate

Role of Responsible Electrical Person for name of site site

Assessor Name……………………………………………………

Date…………………………………………………………………

This certificate authorizes the above name person as a

Competent Isolator (CI)

Authorized Instrument Person (AIP)

Authorized Electrical Person (AEP)

Senior Authorized Electrical Person (SAEP)

For ……………………………………………………………………………………………..……site

For a period

of…………………………………………………………………………………….years

Authorized

By……………………………………………………………………………………………

Date…………………………………………………………………………………………………...….

Accepted

By……………………………………………………………..……………………………….

Date……………………………………………………………………………………………………….

Details of any restrictions to this authorization:

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Authorisation

Rev No: C2

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Dated: October, 2004

Originating Dept: HSE

APPENDIX C ELECTRICAL COMPETENCY CERTIFICATE

Electrical Competency

Certificate

Name;

Role: (AIP, AEP, SEAP, REP)

Site Location;

Experience; (experience in job, formal training, etc)

Site Knowledge; (generation, HV distribution including busbar architecture HV switching procedures, LV switching

arrangements, knowledge of site operating basis, earthing apparatus, battery and UPS systems etc, as appropriate to authorisation

level)

Site Practical; (awareness of electrical risks, switching, earthing apparatus, ICC, PTW, TRA etc)

Electrical Procedures; (questionnaire completed)

Assessment performed by

DATE:

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Authorisation

Rev No: C2

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Dated: October, 2004

Originating Dept: HSE

APPENDIX D

ELECTRICAL TRAINING CERTIFCATE

Competent Isolator

Training Certificate

Name of Trainee;

Site Location;

Equipment trained on: (Specific equipment types Manufacture and Model Number etc)

Operations trained in: (Specific operation that the training has covered, attach any specific operations instructions)

Training assessment; (Assessment of the training which will cover specific knowledge of an equipment hazards or site

procedures covering this equipment)

Assessment performed by

Date

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Authorisation

Rev No: C2

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Dated: October, 2004

Originating Dept: HSE

APPENDIX E

ELECTRICAL ASSESSMENT AREAS

Areas of Assessment

AIP

AEP

SAE

REP

Electrical Isolation Standard

Electrical Safety Guidance

Safe Systems of Work (ICC, PTW, TRA)

Appropriate Site Knowledge

Interpretation of drawings

Comp’Ex EX Certificate (for hydrocarbon sites)

Isolation of LV supplies up to 50V

LV electrical testing up to 50V

LV fault finding up to 50V

First Aid Certificate covering CPR and electric shock

treatment

Electrical protection

Switching programs

Distribution switching

Isolation of LV supplies

LV electrical testing

LV fault finding

HV switching

Isolation of HV supplies

HV electrical testing

HV fault finding

Specific equipment training for competent isolators

* These areas will be site dependant given the maximum voltage level of the site

The assessment process will consist of both a written and practical assessment elements.

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Title: Task Risk Assessment

Doc No: UNIF-HSE-PRO-105-C2

Procedure

Rev No: C2

Page 2 of 41

Dated: September, 2004

Originating Dept: HSE

TABLE OF CONTENTS

INTRODUCTION

ROLES AND RESPONSIBILITIES

AUDITING AND MONITORING

COMPETENCY, TRAINING AND AWARENESS

RISK ASSESSMENT LEVELS

THE STAGES OF RISK ASSESSMENT

MANAGEMENT OF RISK

APPENDIX A: DEFINITIONS & ABBREVIATIONS

APPENDIX B: LEVEL 2 RISK ASSESSMENT - CHECKLISTS

APPENDIX C: L2RA FORMS

APPENDIX D: HAZARD EFFECT & PROBABILITY TABLES, RISK MATRIX

......................................................................................................................38

APPENDIX E: RISK ASSESSMENT FLOWPATH

APPENDIX F: RISK HIERARCHY EXAMPLES

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Procedure

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Dated: September, 2004

Originating Dept: HSE

INTRODUCTION

1.1

Purpose

It is a requirement of the Permit to Work procedure employed within BP AzBU that a Task

Risk Assessment is carried out before any permits are issued.

The purpose of this procedure is to describe the Task Risk Assessment process

employed by BP AzBU in support of the Permit to Work System.

It is a requirement of „Getting HSE Right‟ and the „Golden Rules of Safety‟ that the

Hazards associated with BP activities are identified and that the Risks are assessed and

managed.

1.2

Deviations

The procedures are written in sufficient detail that they should be able to be applied

consistently at all sites. There may still be the requirement for some local rules covering

site-specific logistical/administrative arrangements and local variations in responsibilities

to reflect differences in organisational arrangements. These local rules should not deviate

from the core processes within this document. Any form of deviation from this procedure,

including but not limited to local rules, shall be requested and authorised in accordance

with the SSOW Deviations from Regulations and Procedures procedure (Doc. No. UNIF-

HSE-PRO-101)

1.3

Scope

The scope covers defined activities of BP and Contractors at all BP AzBU sites and

installations.

BP AzBU Managed Sites/Installations

A Permit To Work system with supporting Task Risk Assessment process is employed at

all BP AzBU managed sites where hydrocarbons are processed or handled, and at any

other site directly managed by BP AzBU.

When 3rd party/contractor visits a site/installation with a pre-prepared Risk Assessment, it

must be reviewed. The RA must have similar features and ensures identification of

hazards and controls as effectively as the Task Risk Assessment procedures employed

by BP AzBU. In such circumstances, the Risk Assessment process is followed as normal,

with only a new Risk Assessment front-sheet requiring completion.

Third Party Managed Sites/Installations

On sites managed by a third party, e.g., a contracted drilling rig, the contractor‟s permit to

work and Risk Assessment systems may be used provided that they have similar features

and ensures identification of hazards and controls as effectively as the Task Risk

Assessment procedures employed by BP AzBU.

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Procedure

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Originating Dept: HSE

1.4

Document review

This document will be reviewed on an annual basis when users from the sites will have an

opportunity to propose changes to the existing processes and procedures. The document

Technical Authority will be responsible for coordinating this review.

1.5

SSOW Specific Cross references

This SSOW procedure shall, where appropriate, be used in conjunction with this suite of

AzBU SSOW Procedures referenced below.

Document Number

Title of Procedure

UNIF - HSE- PRO - 101

Deviations from Regulations and Procedures

UNIF - HSE- PRO - 102

Incident Investigation and Reporting

UNIF - HSE- PRO - 103

Permit To Work

UNIF - HSE- PRO - 104

Authorisation

UNIF - HSE- PRO - 105

Task Risk Assessment

UNIF - HSE- PRO - 106

Energy Isolations-Electrical

UNIF - HSE- PRO - 107

Energy Isolations-Process

UNIF - HSE- PRO - 108

Confined Space Entry

UNIF - HSE- PRO - 241

Leak Testing

1.6

BP Golden Rules

Risk Assessment is not an explicit Golden Rule on its own, however it is applicable to

them all. The Golden Rules identify the main areas where Risk Assessment is paramount.

This procedure should be used for all the Golden Rules, being:

Permit To Work

Working at Heights

Energy Isolation

Lifting Operations

Ground Disturbance

Vehicle Safety

Confined Space Entry

Management of Change

1.7

Language Facilitation

Due to the various languages spoken at site, there is a necessity to assist all with “an

ease of understanding”. Therefore, the development and use of information tools are

available.

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Procedure

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Originating Dept: HSE

ROLES AND RESPONSIBILITIES

2.1

Site Manager/OIM/Site Controller

The Site Manager (SM) / Offshore Installation Manager (OIM) / Site Controller (SC) are

responsible for:

 Ensuring that the TRA Process is applied at sites within their area of

responsibility.

 Periodic internal reviews and / or audit of the operations of TRA.

Appointing individuals to act as TRA Team Leaders to facilitate the TRA process.

Site Managers/OIM/Site Controllers are responsible for reviewing all Level

2 Risk

Assessments.

Note: It is incumbent on Site Manager/OIM/Site Controller to request a higher level of

Risk Assessment should they consider that risks have not been fully addressed.

2.2

Area Authority

Area Authorities are responsible for:

 Determining the level of Risk Assessment required to support any Permit to

Work application

 Organising and participating in the Risk Assessment process.

2.3

Performing Authority

Performing Authorities are responsible for taking part in the Risk Assessment process and

disseminating the output from the Risk Assessment process to the personnel who will be

doing the work.

2.4

TRA Team Leader

The main responsibilities of the TRA Team Leader are to:

 Lead the team in performing a Level 2 Risk Assessment

 Ensure the team understands the assessment process

 Take responsibility for maintaining the quality of the TRA

 Ensure that the assessment team includes personnel with all the necessary

experience, knowledge and competence for the task involved

 Ensure that the TRA includes a worksite visit

 Ensure that all members of the TRA team have a full opportunity to contribute

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Procedure

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Dated: September, 2004

Originating Dept: HSE

and that the details of the assessment are agreed by all team members

 Ensure that the details of the assessment are accurately recorded

2.5

Individual TRA Member

The responsibilities of individual team members are to:

 Actively participate in the TRA process

 Help identify hazards and control measures to reduce the likelihood of an

incident/accident occurring

 Ensure they agree with the overall TRA before approval, ensuring that risks

have been reduced to as low as reasonably practicable

2.6

People carrying out the Work

The responsibilities of the people carrying out the work is to:

 Understand the hazards, risks and controls associated with the task

 Participate and contribute in the Toolbox Talk

 Actively monitor the worksite and surroundings for changes

 Stop the job at any time if they are concerned about safety

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Procedure

Rev No: C2

Page 7 of 41

Dated: September, 2004

Originating Dept: HSE

AUDITING AND MONITORING

Each Business Asset shall:

 Undertake internal audits of the operation of the Risk Assessment process as

part of the Safe Systems Of Work at each site.

 Maintain an Audit Register.

 Have in place a system for tracking recommendations

Use of a Standard Audit Checklist is recommended, to allow comparison with external

audit results.

The recommended frequency of Audit is as follows:

 Installation/Site personnel

1 permit per day

 Site Safety Adviser

1 permit per week

 Site Manager/ Controller

1 permit per month

Permit and Risk Assessment audits should be a cross section of activities ongoing.

Where possible, audits should be conducted on all forms of risk assessment:

 Normal (Level 1 and Level 2)

 Isolation Risk Assessment (IRA)

 Operational Risk Assessment (ORA)

 Stand Alone Risk Assessment (SARA)

Installation / Site personnel should carry out audits of individual tasks covering both the

PTW and the Isolation Confirmation Certificate (ICC) on a regular basis.

Offshore Installation Managers / Site Controllers / Site Managers shall carry out regular

internal reviews of the findings of Permit to Work and Risk Assessment Audits, to ensure

that any critical failings in the system, or its manner of implementation, have been

identified and appropriate actions have been, or are being, taken.

The BU HSE Department as part of their annual audit schedule will conduct PTW audits.

Such audits shall examine a cross section of at least 20 Permits, and a number of

relevant ICC‟s. These audits should examine detailed reviews of Risk Assessments, and

check compliance with this procedure and any deviations in place.

The results of the audit shall be discussed with Management and issued for information

and actions allocated to individuals as appropriate.

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Procedure

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Dated: September, 2004

Originating Dept: HSE

COMPETENCY, TRAINING AND AWARENESS

4.1

General

All personnel involved in the use of the Risk Assessment process shall be trained and

proven to be competent.

The competency of all relevant personnel shall be established during the planning

process for a particular risk assessment. The Area Authority and/or Line Supervisor shall

ensure that the personnel involved in the activity have the correct competencies through

records or requesting individuals to produce relevant certification.

4.2

Levels of Training

The levels of training are:

First time users: -

Risk Assessment Team Member and Risk Assessment Team Leader level using

classroom based training, with possibly a computer-based Training (CBT) for refreshers.

This also requires a practical assessment to demonstrate that the trainee understands

the Risk Assessment procedure.

Having undergone the appropriate training, RA-Team Members and RA-Team Leaders

can only take on the role when they have been assessed and authorised by the OIM / Site

Manager or Site Controller.

For those considered experienced:

(Regular users)- Refresher training shall be

undertaken, and assessed, at a frequency of not more than 2 years, or if absent from the

site/installation for more than 12 months.

For those transitioning from another Risk Assessment system to this one: -

transition training shall be undertaken with all attendees being assessed for their

competency.

For all BP AzBU employees: - prior to any involvement with the PTW and Risk

Assessment system all employees shall receive awareness training to ensure that they

understand the importance of PTW and how it affects them in the working environment.

Note: The Toolbox Talk is an essential part of the Risk Assessment Process. All users

of SSOW should contribute at this point. Additional information can be found in section

6.9 of this document.

4.3

Records

Records of attendance and competency will be filed for future reference / verification by

Senior Management.

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Title: Task Risk Assessment

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Procedure

Rev No: C2

Page 9 of 41

Dated: September, 2004

Originating Dept: HSE

RISK ASSESSMENT LEVELS

5.1

General

The process of Task Risk Assessment (TRA) is a method for systematically examining an

individual work assignment (task), to identify the hazards, evaluate the risks and specify

appropriate controls.

There are two levels of risk assessment defined within the process:

Level 1

 Level 1 is a broad overview of the task by a Competent Person (CP) or persons

(typically the Team Leader, Performing Authority (PA) and Area Authority (AA), to

identify any significant hazards involved and appropriate control measures which

require to be in place to allow the job to proceed.

Level 2

 Level 2 is a formal quantitative assessment, which is required only when the CP(s)

judge that there are greater hazards or complexities associated with the task,

which requires a more rigorous level of assessment. A team of minimum 3

personnel carries out this assessment.

All Risk Assessments require input from those who will be doing the work. In addition,

some Level 2 Risk Assessments may require the input of expertise from outside the

normal site/installation team.

Previously carried out L2 Risk Assessments (L2RA) can be used for repeat tasks.

Note: Whenever a previous L2RA is re-used then it is critical that the details of the TRA

are reviewed to ensure that the scope of the task is still relevant, conditions have

not changed and that the hazards and control measures are still appropriate. A

new L2RA Front-Sheet must be completed, to capture details of the new review

team.

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Originating Dept: HSE

5.2

Level 1 Risk Assessment Guidance Notes

A Level 1 Risk Assessment is based on section 1 and 2 of the Permit. The Permit Form

provides the prompt list and structured approach for this level of Risk Assessment.

Different Permits have different prompt lists in section 2.

A Level 1 Risk Assessment involves a review of the task by the PA in consultation with

another competent person (CP) (normally the PA, Team leader or AA) to identify the

hazards associated with the task and appropriate control measures required to manage

these hazards. The PA‟s in using their technical competence and task information from

section 1 selects the hazards from a list.

The PA then uses the controls listed in section 2 of the Permit to show how the work will

be controlled.

These hazards and controls are selected from a list from the permit, although the PA

should not be constrained by this and must use his judgement and expertise to identify

any further hazards or controls - there is space on the permit to add additional hazards

and controls.

The CP must decide whether the risks can be controlled adequately by the proposed

means, taking into account the controls required by any relevant local procedure and the

competence of the person in charge. If the CP is not completely assured that the risks will

be adequately controlled by these measures and feels a more rigorous assessment is

required, they must inform the person in charge of the work and request a Level 2 Risk

Assessment. This requirement should ideally be identified at the earliest opportunity. The

Site Manager / Site Controller / Offshore Installation Manager can direct that a Level 2

Risk Assessment shall be undertaken at any time. Earliest communication of the task

requirement and discussion about it will identify the level of Risk Assessment process to

be conducted.

The Area Authority will review with the PA Section 1 and 2 of the permit along with any

documentation. They will visit the worksite to confirm all hazards have been identified and

controlled.

The flow-path that should be followed is provided in Appendix E.

Note: Discussing the job with the workforce involved is an important part of this

process.

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Originating Dept: HSE

5.3

Level 2 Risk Assessment Guidance Notes

A Level 2 Risk Assessment must be carried out at any stage in the process where the PA,

AA, a member of management or any other personnel believes that significant risks exist

which will not be adequately controlled without a more rigorous assessment and the

application of additional controls. This requirement should ideally be identified when the

planning for the task is first initiated.

The reasons for a Level 2 Risk Assessment might include, for example:

 The task is new and unfamiliar

 It is physically impossible to comply fully with the standards in a relevant local

procedure or other recognised source of guidance

 Previously used controls may not be reasonably practicable in this case

 The task is complex and/or has potential impact on other activities

The decision on when a Level 2 Risk Assessment is required for a task is somewhat

subjective and will depend on the people involved but the following rules should be

applied to ensure a consistent level of assessment is being carried out across the

organisation.

There are four types of Level 2 Risk Assessment:

 Normal

 Operational Risk Assessment (ORA)

 Stand Alone Risk Assessment (SARA)

 Isolation Risk Assessment (IRA)

A Level 2 Risk Assessment is mandatory for any job described in Table 1 and is advised

in Table 2.

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Originating Dept: HSE

5.3.1 Normal Level 2 Risk Assessment

Tasks identified in this section require a Normal Level 2 TRA to be performed. In the

event a particular task is not listed but the Task has a significant risk (s) then a Line

Supervisor should be consulted. Some sites may have specific activities unique to that

site which they deem as mandatory Level 2 tasks. A Level 2 Risk Assessment must

always be undertaken for any job, which requires:

Table 1 - Mandatory Level 2 Risk Assessment

 Confined Space Entry

 Heavy Lifts

 Work on flare systems

 Diving Operations

 Plugging/sealing

 Simultaneous Operations (SIMOPs)

 Hot / Odd Bolting

 Use of Explosives

 Working with asbestos

 Lifts over live process pipelines or process

plant

 Working at Heights without scaffold or

 Tasks involving Ground Disturbance

structure

(Excavations)

 When minimum standards of Energy

 Where there is a significant potential for

Isolation cannot be achieved

injury to people outside the site boundary

 Unconventional access (e.g., abseiling,

 Hot work within 15m radius of hydrocarbons

crane basket)

 Proof Tests (initial hydro test where no

 When the any approved procedures cannot

design pressure exists)

be followed.

 Pneumatic test (as alternative to hydro

 Task that may have specific hazards

test, up to 110% of design pressure)

associated with Energy Isolation.

 Non-routine venting/draining/cleaning of

 Tasks which are judged to be unusually

equipment containing hazardous chemicals

complex (e.g., due to the number of steps or

interfaces)

 Tasks which are unfamiliar, or which

involve unfamiliar methods or technologies

Table 2 - Advisory Level 2 Risk Assessment

 Any activities involving potential exposure to H₂s

 Where multiple protective devices are removed or inhibited from a system

 New activities being carried out for the first time and/or involving personnel or vendors new to

the site

 Where an element of emergency equipment is being removed from service (e.g. fire pump

removal/maintenance)

Some sites will have standing instructions or procedures in place covering standard

precautions for some of these activities. They can act in support of the assessment and

may adequately cover most of the required control measures.

A Level 2 Risk Assessment is carried out against check lists (see Appendix B Risk

Assessment Check Lists).

The flow-path that should be followed is provided in Appendix E.

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Originating Dept: HSE

5.3.2 Operational Risk Assessment

Operational Risk Assessments (ORAs) are associated with a piece of equipment or plant

as opposed to being associated with a specific task. They involve carrying out a Level 2

Risk Assessment and identifying some control measures that need to be put in place.

Examples of an ORA are:

 Operating a compressor with some instrumentation out of service (e.g. vibration

probe), where some additional controls or monitoring is required to allow continued

operation of the compressor

 Reduction of deluge cover in an area of the Installation where some additional

controls/restriction on work would be applied to that particular area of the plant

 Problem with a lifeboat where some alternative evacuation arrangements are in

place

If a piece of equipment requires an ORA, the procedure would be:

 Create a team as per L2RA procedure (Mandatory Level 2 Risk Assessment)

 Complete a TRA on Front Sheet and Work Sheets

 Authorise ORA - register held by OIM / Site Controller / Site Manager

 Assign controls, and put in-place

Note that an ORA is not a permit, therefore no isolation is available. If any isolation is

required, a permit should be raised.

An Operational Risk Assessment is valid for 28 days and has to be reviewed every 7 days

by the Site Manager/OIM/Site Controller.

5.3.3 Stand-Alone Risk Assessment

SARAs are not task-related but once again require that a Level 2 Risk Assessment be

conducted. A Stand-Alone Risk Assessment involves carrying out a risk assessment,

which may not be associated with either a task or specific piece of equipment. It could for

example involve performing a risk assessment associated with a change in organisation

or responsibilities. It allows direct use of the standard Level 2 Risk Assessment process.

If a SARA is required, the procedure would be:

 Create a team as per L2RA procedure (Mandatory Level 2 Risk Assessment)

 Complete a TRA on Front-Sheet and Work-Sheets

 Authorise SARA - register held by OIM / Site Controller / Site Manager

 Assign controls, and put in-place

Note that a SARA is not a permit. Therefore no isolation is available.

A Stand Alone Risk Assessment has no restriction on validity duration, but should be

reviewed by the Site Manager/OIM/Site Controller every 28 days.

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Originating Dept: HSE

5.3.4 Isolation Risk Assessment

When an Energy Isolation-Process does not meet the standard as stipulated in procedure

UNIF-HSE-PRO-107 a L2RA is required. The risk assessment should only be on the

isolation element of the task, and not the work task element.

Examples of when an Isolation Risk Assessment (IRA) is required are:

 Sufficient number of valves are not available to achieve the level of isolation

required

 There is an integrity issue (e.g. leaking) of part of an isolation

 An alternative means of isolation must be resourced, i.e. stopple bag, ice-plug

If an isolation requires a risk assessment, the procedure would be:

 Create a team as per L2RA procedure (Mandatory Level 2 Risk Assessment)

 Complete TRA Front Sheet

 The TRA Worksheet should identify controls to allow a safe and suitable isolation

 Authorise IRA - register held by OIM / Site Controller / Site Manager

 Assign controls, and put in-place

An Isolation Risk Assessment is valid indefinitely, however it has to be revalidated after 7

days by the OIM/Site Controller/Site Manager.

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5.4

Level 2 Risk Assessment Team

The objective of the Level 2 Risk Assessment is to assemble a team of persons with

intimate knowledge and expertise of the task and in a structured way, examine all the

hazards associated with that task, and then devise a set of controls which will ensure an

acceptable level of risk is achieved. Where necessary, expertise from elsewhere

(e.g. specialist vendors/contractors) may also be brought into the assessment process.

Where larger jobs or shutdowns are planned, work should be undertaken early on to

identify potential tasks requiring Level 2 Risk Assessments in order to allow adequate time

for the assessment to be undertaken.

The Level 2 Assessment Team should be made up of a minimum of three persons and

consist of persons having intimate knowledge and experience of the task or equipment to

be used. There should also be a fully competent TRA Leader capable of acting as

facilitator and leader of the assessment process.

The TRA Team Leader should make arrangements for the team to work as a group. It is

important to ensure, for example, that there is adequate space for examination of

drawings and that sufficient time is allocated to allow a rational decision to be reached.

It should not normally require more than a team of five persons to carry out an

assessment.

The objective of a Level 2 Risk Assessment is to use local knowledge and specialist

knowledge in a structured way in order to achieve ALARP for any residual risk.

The Risk Assessment team should include:

 the Area Authorities for the areas in which the task will be carried out

 the Performing Authority

 the person who will undertake the task, if not the Performing Authority

 a specialist from inside and external to the operation as required

 an HSE specialist who is responsible for ensuring that the Risk Assessment is

carried out in accordance with this procedure and for recording the results.

Note: a L2RA Team requires at least three members

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Originating Dept: HSE

THE STAGES OF RISK ASSESSMENT

6.1

Define the Task to be Assessed

The task description detail must provide information on Who, What, Why, How and When

the task will be performed. As the task becomes more complex the level of detail and

supportive documentation required will increase. The level of information provided must

take into account all people taking part in the task.

The Task Risk Assessment team must first ensure that they fully understand the task and

its implications. The overall task may need breaking into steps to facilitate carrying out the

Task Risk Assessment. When defining the task, think about such aspects as provided

below:

Item

Issues to Consider

1. System boundaries

What is the system being worked on? The extent of equipment,

hardware, or software affected by the activity. Will the work be

carried out on isolated or un-isolated systems? Where are the

isolations, or interfaces with other systems?

2. Area or space boundaries

What area is affected by the activity?

What area could be affected in an accident?

3. Work activities included

What do you have to do? What might be the effect of doing it?

Think about isolations, inhibits, etc.

4. People affected

People; in the team, working nearby, who might be passing by,

working on related activities and working on connected systems.

5. Time and duration of work

Will the task take one hour or multiple shifts?

Will the work be done during the day or night or both?

6. Tools and equipment to be

Does the activity require hand tools, power tools, ladders, lifting

used

equipment, etc.? Task-specific PPE

7. Interfaces with adjacent work-

How will your work affect other work going on at the same time?

fronts

How will other work affect you?

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6.1.1 L1RA Specific

For a L1 Risk Assessment, the Task Description is recorded in box 1.

6.1.2 L2RA Specific

The L2RA Front Sheet should be completed as far as possible. The sections that should

be completed are:

INSTALLATION

DEPARTMENT/SYSTEM/LOCATION -

complete for relevant option

PERMIT No - if known at this point. If not,

TASK DESCRIPTION - be as explicit as

complete when PTW is initiated.

possible, for clarity and future use

REFERENCES AND OTHER RELEVANT

DATE - the date the risk assessment

INFORMATION - enter all relevant

took place

information

TRA Ref No - if registered, enter number

RISK ASSESMENT TEAM - enter names

here. This will be used when Risk

and positions. No signatures required

Assessments are being stored for future

use. Site specific rules will dictate how

this is administered.

TYPE - NORMAL, IRA, SARA or ORA

Any sub task steps should be identified on the L2RA Work-Sheet columns 1 & 2.

Note that the TRA front sheet is not signed as approved initially; this section will only be

signed after worksheets are complete and the SM/SC/OIM accepts the Task Risk

Assessment.

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6.2

Identify the Hazards

A visit to the work site is MANDATORY in order to assess the layout of the area, site

conditions and adjacent plant and activities. Once the members are all familiar with the

scope of the task to be carried out, the team should list all the significant hazards in

column 3 of the TRA worksheet. For a L2RA these are identified on the permit

Checklists are supplied as a guide for reference purposes only. They should not be

considered as being comprehensive. A group brainstorm, with the team leader making

sure that each member is given adequate opportunity to express their views is vital to

maintain a systematic approach to using these checklists.

Hazard Checklist - General

Falling from height

Mental Stress

Noise

Manual Handling

Cold/Heat

Vibration

Lifting operations

Ionising Radiation

Pressure

Falling object

Inert gas

Biological agents

Noise

Chemical hazard

Welding/cutting

Lighting

Flammable gas

Power tools

Fume/dust

Flammable liquid

Static Electricity

Weather

Hand tools

Work on safety systems

Collision

Ignition

Transport by sea/air

Hand tools

Fire

Storage

Machinery

Explosion

Water jetting

Asphyxiation

Structural damage

Grit blasting

Electricity

Personal injury

Potential for ignition

Loss of containment

Barriers/access restrictions

Loss of containment from system

from nearby system

being worked on

Hazard Checklist - Isolations

Type of valves and reliability

H₂S

Size of pipe work

Wax

Integrity testing

Sand

Reverse flow

LSA Scale

Pressure build-up

Hydrates

Migration from other systems

Foaming

Inventory behind isolations

Blockage

Duration of isolation

Trapped pressure

Adequacy of pipe supports

Nature of fluid

Fail position of ESD valves/blow down valves

Temperature stability of system and adjacent

systems

Contingency in the event of failure of

Pressure stability of system and adjacent systems

isolations

Environmental impact of spills or emissions

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Hazard Checklist - Breaking Containment

Note: This checklist should be used in conjunction with Hazard Checklist - Isolations.

Electrical risk of using portable tools

Chemical reactions with cleaning materials

Hazardous substances trapped around bends,

Flammable or toxic vapours arising from

behind baffles, linings etc.

sludge in vessel

Trapped pressure

Chemical reactions with cleaning materials

Environmental impact of spills or emissions

Residual pressure

LSA Scale

Residual heat

Pyrophoric scale

Liquids remaining from flushing

Asbestos gaskets

Inert atmospheres

Chemical hazards

Hazard Checklist - Vessel Entry

Residual gases/vapours

Noise, general

Sludge which may give rise to vapours/gases

Communication difficulties within the vessel

when disturbed

or with the standby man

LSA / NORM scale

Adequacy of lighting within the vessel

Adequacy of ventilation

Temperature effects

Need for air movers during entry.

Oxygen enrichment

Location of rescue kits

Oxygen deficiency

Standby man communication with the CCR

Frequency of gas testing

Ingress of gases/vapours from other nearby

Use of mechanical tools/power

activities or systems

tools/electrical equipment

Competency of standby man

Disposal of vessel cleanings

Slip hazards within the vessel or at the point of

Noise when using power tools

entry

Ionising radiation; nucleonic instrumentation

Visibility within the vessel

Danger of falling into vessel boots or sumps

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6.3

Identify the Hazard Effects

Note: recording of the Hazard effects is only recorded on a L2RA. However the hazards

effects should be considered on any type of Risk Assessment.

The Team must then identify the Hazard Effects, which will be entered into column 4 of

the L2RA Work-Sheet. Hazard effects are the worst credible possible outcome of the

hazard. As guidance, the team can refer to table the Risk Matrix in the appendices. The

Team should be as explicit as possible in the Hazard Effect details. It is important to

consider property damage and environmental impact and not just personal injury

Examples are shown below:

SUB-TASK ACTIVITY /

HAZARD

EFFECT

DESCRIPTION

Move temporary oil decanting hoses in

Slipping/tripping hazard

sprain, graze

utilities area to new storage cupboard.

Dropped object

broken foot bone

Decant methanol from temporary skid on

Flammable (invisible flame) and

Burns

deck to new storage tanks, use of

Toxic by inhalation &

Fatality

temporary hoses

swallowing.

Welding of new earthing point in live

Fire / explosion in hydrocarbon

Multiple fatality

operational area

area

Long term plant shut down

The table below should be used to determine the hazard effect, rated A - E.

PERSONAL

PROPERTY

ENVIRONMENTAL DAMAGE

EFFECT (E)

INJURY

DAMAGE

RATING

Fatality

Major Loss >$5M

Total Loss of Containment

Likely Permanent

Significant Damage

Significant Loss of Containment.

Disability

Loss $500k to $5M

100bbl, Limited ability to control

Hospital Stay

Moderate Damage

Significant Loss of Containment

Loss $100k to $500k

> 100bbl only Workplace affected

DAFWC / Restricted

Minor Loss $10k to

Minor Loss of Containment

Work Case / Medical

$100k

< 100bbl only Workplace affected

Treatment

Simple First Aid

Loss <$10k

Slight Loss of Containment < 1bbl

Injury

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Originating Dept: HSE

6.4

Existing Control Measures

Note: Existing Control measures are valid for both L1RA and L2RA

When doing a risk assessment, it is normal to assume that no controls are in place. For

many tasks, some controls may be known before the risk assessment, and it is not

realistic to think of the work being done without these controls (e.g. an energy isolation).

So, if experience or normal industry or trade standards dictate, it may be valid to assume

that certain controls are in place, provided that:

 they are stated in column 5 of the L2RA Work-Sheet

 they are demonstrated as part of the task definition (e.g. planned isolations must

have appropriate isolation certificate and marked-up P&IDs); and

 the controls are confirmed to be in place prior to the work being carried out

Controls that may be included in the definition of the task include:

 procedures, operating guides, etc. (supported by a valid risk assessment);

 energy isolations confirmation certificate (including P&IDs)

 entry certificate

 scaffolding request; and

 other risk assessments such as, manual handling, LSA/NORM scale.

Work permits are used for recording the controls for individual work tasks, for controlling

the interfaces between work activities and to gain the correct approvals to start a job.

However, a work permit itself is not a control for an individual work task and should

therefore not be included in the task definition.

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6.5

Evaluate the Risk

Note: recording of the Risk value is only recorded on a L2RA. However the risk factors

should be discussed for a L1RA.

The risks created by each hazard on the list should be evaluated according to:

 The worst credible severity of the hazard effects, should anything go wrong

 The probability of the hazard being realised and resulting in the specified hazard

effect

It is important to consider property damage and environmental impact and not just

personal injury

For each hazard the initial hazard effect and probability are defined based on the hazard

and probability matrix shown:

PERSONAL

PROPERTY

ENVIRONMENTAL DAMAGE

EFFEC

INJURY

DAMAGE

T (E)

RATING

Fatality

Major Loss >$5M

Total Loss of Containment

Likely Permanent

Significant Damage

Significant Loss of Containment.

Disability

Loss $500k to $5M

>100bbl, Limited ability to control

Hospital Stay

Moderate Damage

Significant Loss of Containment

Loss $100k to $500k

> 100bbl only Workplace affected

DAFWC / Restricted

Minor Loss $10k to

Minor Loss of Containment

Work Case / Medical

$100k

< 100bbl only Workplace affected

Treatment

Simple First Aid

Loss <$10k

Slight Loss of Containment < 1bbl

Injury

PROBABILITY GUIDELINES (P)

RATING

Will occur more than once per quarter

HIGH

(H)

nearly every time

Will occur at least once per year, but less than quarterly

MEDIUM

(M)

sometimes

Will occur less than once per year

LOW

(L)

hardly ever

The hazard effect (E) and probability (P) are then used to determine the risk (R), using the

risk matrix provided. The E, P & R values are written in column 6 of the TRA worksheet.

The initial assessment of risk is to be determined on the basis that no specific control

measures exist. This is in order that the full risk potential may be recognised. The

effectiveness of the assessment will depend entirely on the team‟s ability to identify and

evaluate all significant hazards associated with the task.

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Originating Dept: HSE

The team should also consider the possibility of the interaction of different hazards,

including those related to:

 Location - Attention should focus on the proximity to other plant or equipment,

e.g., air intakes, shut down systems, control points, vents, drains, sample points

and ignition sources.

 Critical Activities - Critical activities include isolation, flushing, inerting, confined

space entry; work at height, hot work, lifting, use of power tools, temporary

power and air supplies, pressure testing, radiography.

 Simultaneous Activities. - Simultaneous activities should be investigated both

within the task itself and with other unrelated activities taking place nearby.

Risk Matrix (R)

HAZARD EFFECT

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6.6

Determine the Additional Controls Required

Note: recording of the Additional Controls is only completed on a L2RA column 7.

Recording of Controls for a L1RA is in section 2 of the permit.

Once the initial Assessment of Risk is complete, the team must work systematically

through the list of Hazards and specify all the Additional Control Measures needed to

mitigate each associated Risk. These are recorded in column 7 of the TRA worksheet.

Note: Controls, which prevent the hazard being realised, should be used in preference to

controls that reduce the effect of a hazard.

The hierarchy of controls is applied in the following order;

1. Eliminate

2. Reduce (substitution, Engineering, Segregation)

3. Manage or Administration (reduce exposure, Procedures)

4. PPE - This must be the last control applied; remember that with PPE you are

inside the hazard zone.

Wherever possible, measures higher in the hierarchy should be used, providing they are

reasonably practicable, and emphasis should be placed upon control at source. A

combination of measures will usually be necessary in order to reduce the level of Risk As

Low As Reasonably Practicable (ALARP). It should also be considered that when

specifying controls, any associated risk that they bring with them needs to be assessed

and controlled.

Typical Control Measures can be placed in the following categories:

Control Measure

Typical Examples

1. Physical

Removal of fuses; Insert spade or blank flange in pipe work; Lock off

valve; Erect mechanical barrier; Use locked enclosure; Keep people at

a distance (e.g., signs, warning tape); Eliminate or substitute toxic

substances; Substitute noisy machinery; Use mechanical handling

equipment.

2. Procedural

Test for pressure build-up or leaks; Examination of flushing fluid; Test

for hazardous chemicals in liquid, solid or gaseous form; Procedure for

control of simultaneous or adjacent work; Prohibition of hot work;

Equipment lock-out; Develop contingency plan,

3. Human

Use of independent specialist personnel; Regular or constant

monitoring of the Task; Use of method statements / detailed

procedures; Clear instructions and warnings to workforce; Clear

definitions of roles and responsibilities during the Task; Adequate

supervision; Ensure competency of personnel for the activity

4. Time

Limit duration of the Task or time of day when the activity occurs; Use

time-saving measures such as hot-bolting, good work-site preparation

and planning for the movement of materials, tools.

5a. Contingency

Emergency shutdown, deluge and blow-down systems, reduction of

(Control)

inventory.

5b. Contingency

Temporary refuge, emergency response system, fire/blast wall, water

(Mitigation)

curtain, provision of PPE, rescue equipment, etc.

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6.7

Allocating Responsibilities for Control Actions

Note: recording of the Responsibilities is completed on a L2RA column 8. Responsibilities

for control actions are not recorded on a L1RA, but can be identified in a method

statement or procedure.

Once the control measures have been identified, each should be allocated to either an

individual or a role. The Risk Assessment may be completed some time before the actual

work task-taking place; therefore the delegated individual/role may change. Where

possible, identify both a role and a specific individual. These are recorded in column 8 of

the L2RA Work Sheet.

Column 11 is for recording the closeout of the actions. Therefore this column should not

be completed until the work is about to commence.

6.8 Re-evaluate the Risks for Acceptability

Note: this is completed on a L2RA column 9. Risk re-evaluations are not recorded on a

L1RA (permit).

The team must then re-evaluate the risk for all those hazards for which controls have

been determined. The new risk level should be determined and the team should consider

whether the risk is now as low as reasonably practicable (ALARP). Column 10 should be

identified with a „Y‟ to confirm the Risk Analysis Team has agreed ALARP.

If the risk is not ALARP, the review team must decide what further safeguards need to be

put in place. The agreed residual E, P and R are recorded in column 9 of the TRA

Worksheet.

The team must finally decide on the acceptability of the overall remaining risk for the task.

Individual hazards with a medium risk may be acceptable provided the overall risk of the

task is considered low. If the team decides that even with the controls in place, there are

too many hazards, which still have a medium risk, this must be recorded and the task in

its present form must be abandoned.

The higher the perceived risk for any particular hazard, the greater should be the

number and/or quality of independent controls, which the team specify as necessary.

Consideration should also be given to the possibility of cumulative effects from the

interaction of several different hazards.

If the team considers that there are insufficient independent controls available, or that the

controls are likely to be ineffective against any particular risk, that risk must be judged to

be unacceptable, and the team leader must record this decision. The task must then be

abandoned or referred to higher management.

The team may also conclude that because of the complexity or degree of the risks

involved, a more detailed engineering assessment is needed. In this case, the task must

be suspended until the assessment is available.

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As a final check, the team should ask itself the following questions about the

proposed task:

 Have all necessary control measures been fully and effectively identified?

 Is there a need for engineering change to eliminate or reduce risk?

 Is there a need to shutdown the plant or process?

 Is the residual risk rating acceptable?

Only at this point can the team judge whether ALARP has been achieved.

Where the residual risk is in the 7 to 11 range should only proceed with utmost

caution.

Where the residual risk >=12, the task may NOT proceed. Either additional controls

must be put in-place, or the task re-engineered.

The table provided provides guidance for residual risk results.

CONTROL ACTIONS

TASK MAY NOT PROCEED DUE TO SERIOUS LOSS POTENTIAL.

TASK MAY PROCEED ONLY WITH ADDITIONAL CONTROLS IN PLACE TO

AVOID SERIOUS LOSS, AND REDUCE RISK TO <12, THE RESIDUAL RISK

MUST BE ALARP.

TASK MAY PROCEED ONLY WITH THE UTMOST CAUTION.

REVIEW PROCEDURES AND CONTROLS TO REDUCE RISK FURTHER

TO ACHIEVE ALARP

MONITOR CONTINUOUSLY DURING TASK TO ENSURE RISK DOES NOT

INCREASE.

REVIEW PROCEDURES AND CONTROLS TO ENSURE RISK IS REDUCED

TO ALARP.

MONITOR CONTINUOUSLY DURING TASK TO ENSURE RISK DOES NOT

INCREASE.

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6.9

Implementation of Control Measures

Note: recording of the control implementation is completed on a L2RA column 11.

Implementation of controls is not recorded on a L1RA.

Column 11 is for recording the close-out of the actions. Therefore this column should not

be completed until the work is about to commence.

There are two types of control measures that will be identified from either the Level 1 or

Level 2 TRA process:

 Prerequisite controls are those which must be in place prior to the job starting

 Supplementary controls are those which have to be applied during the job

The prerequisite control measures must be implemented prior to the job going live. This

includes any training and/or special briefing of the PA and work party according to an

agreed plan of action.

The supplementary controls, which will be applied during the job, must be understood fully

by the PA and the work party before work commences.

The AA must satisfy himself that Competent Persons have been allocated the work;

the required controls are in place, any additional paperwork is complete, and that all

the individual risks are reduced to ALARP.

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Originating Dept: HSE

6.10 Toolbox Talks

Note: Toolbox talks will be carried out for all tasks, whether they are L1RA or L2RA.

This is the process of transferring the methodology and controls to the people who will

carry out the work. It is vital that all persons involved in working on a particular activity are

fully aware of the details of the TRA and all the hazards and controls associated with the

job. Some of them may have been directly involved in the TRA but others may not have

been. This is particularly true of larger jobs (e.g. construction) where the PA who is

probably the Construction Supervisor will have been directly involved in the TRA but the

rest of the work party probably have not.

A Toolbox Talk is a vital part of the process to ensure that the TRA and its associated

documents are reviewed prior to the start of the job and are fully understood by all

persons involved in the task.

Particular emphasis should be placed on those residual risks with a higher rating. It is also

an opportunity for those involved in the work to raise any further concerns about the job

and to identify any hazards not picked up in the TRA process.

Note: If anyone at this stage identifies some additional hazards that have not been

properly assessed or thinks the control measures are inadequate, then the job should not

proceed until the TRA has been re-evaluated and appropriate controls identified to ensure

the job is ALARP.

Keys to success of this step are:

 Communication of the task, the hazards and what must be done to control them to

every person involved in the task.

 Language is critical, especially in complex technical tasks.

 The toolbox talk is held prior to work starting

 Everyone understands everything discussed

 Everyone has the opportunity to voice concerns

Some example topics to cover as part of the Toolbox Talk are:

Issue

Notes

The current weather

 Weather

conditions

 Sea State

The work party

 Competence and experience

 Familiarity with the installation and the system being

worked on

 Anyone fatigued or distracted

The worksite

 Access

 Awkward working position

 Temperature/humidity

 Lighting

The current state of the plant

 Physical condition of plant and equipment

and equipment

 Current operating status of plant and equipment

The current adjacent work

 Can this job affect other work sites

sites

 Can other work sites affect this job

The pre-defined precautions

 Are they as per written instructions, risk assessments,

and controls

PTW, etc

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MANAGEMENT OF RISK

7.1

Approval

On completion of the Risk Assessment, the Risk Assessment Front & Work Sheets must

be attached to the permit application for the job. It must be reviewed and signed by the

OIM / Site Controller / Site Manager before he approves the associated Permit(s) to Work.

Should the OIM / Site Controller / Site Manager feel that the task presents risks beyond

his level of accountability, he must refer to his Manager for guidance, and if necessary

request a more sophisticated analysis of the risks and mitigation than can be provided by

the method described in this procedure.

7.2

Recording the Risk Assessment

Where a task is likely to be repeated, a record of the Risk Assessment should, at the

permit issuer‟s discretion, be retained for future reference. In any event Risk

Assessments, which include hazards to the health of those, undertaking the task must be

attached to the permit(s) for the job and retained for 12 months.

Where a Risk Assessment form is being re-used, it must be fully reviewed and a new front

sheet created.

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APPENDIX A: DEFINITIONS & ABBREVIATIONS

Confined Space

where there is inadequate ventilation to dispel injurious or

Entry:

flammable fumes, vapour or gas or to provide sufficient oxygen.

Also includes areas where access / egress is restricted.

Controls:

steps taken to reduce either the probability or consequences, or

both of a particular risk.

Hazard:

the potential for human injury or loss of life, damage to the

environment or to material assets or a combination of these.

Hazardous

the result when a hazard is realised.

Consequence:

Inhibition:

The isolation of the executive action of a protective system.

Where practicable, this should not prevent the operation of the

visual / audible warning system.

Isolation:

 Process Isolation involves the closing and locking of valves.

This may include depressurising, flushing and purging, e.g.

single valve isolations.

 Positive Isolation involves the disconnection of plant,

equipment and systems from sources of motive power, liquids

and gases.

 Electrical Isolation - The secure, disconnection and separation

of a circuit, or item of equipment, from every source of

electrical energy. This may involve electrical, instrument and

communication isolations.

 Long Term Isolation - An isolation that remains in place after

permit cancellation, and recorded as “Long Term”.

Isolation

a register maintained in the control room identifying the status of

Certificate

all Isolation Certificates by the Control Room Operator-referenced

to individual permits.

Permit:

an authorising document approved by management, specifying

the required precautions and conditions under which potentially

hazardous or interacting activities can take place

Permit Display

a board used to display the status of active and suspended

Board:

permits.

Permit

a register maintained in the control room identifying the status of

all permits.

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Probability:

the chance of occurrence of an event. Probability can be

expressed as a likelihood, frequency, class, rank etc.

Risk:

a combination of the likelihood of a hazardous event and the

severity of the possible consequences of that hazardous event.

Risk

the overall process of risk analysis and risk evaluation.

Assessment:

Risk

the process to support management decisions as to acceptability

Evaluation:

or risk reduction requirements by comparing the estimated risk

against relevant criteria.

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APPENDIX B: LEVEL 2 RISK ASSESSMENT - CHECKLISTS

Note: These checklists are for guidance only. They should not be regarded as

comprehensive in nature and do not replace sound judgment in the

recognition of all hazards associated with any task undergoing assessment.

Several checklists are provided below AS A STARTING POINT FOR LEVEL 2 RISK

ASSESSMENTS. The team should choose the list, which it feels, is the best starting

point for the assessment to be carried out.

The Incident Causation Check List or the General Check List can be used for

guidance on all tasks, in combination with a more specific checklist if appropriate.

Hazard Checklist - General

Falling from height

Noise

Manual Handling

Vibration

Lifting operations

Pressure

Falling object

Biological agents

Noise

Welding/cutting

Lighting

Power tools

Fume/dust

Hand tools

Minimise potential for ignition

Work on safety systems

Collision

Transport by sea/air

Hand tools

Storage

Machinery

Water jetting

Asphyxiation

Grit blasting

Cold/Heat

Loss of containment from nearby system

Mental Stress

Loss of containment from system being worked

Ionising Radiation

Ignition

Chemical hazard

Fire

Inert gas

Explosion

Flammable gas

Structural damage

Flammable liquid

Personal injury

Electricity

Barriers/access restrictions

Static Electricity

Weather

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Hazard Checklist - Isolations

Nature of fluid

Pressure stability of system and adjacent systems

Temperature stability of system and adjacent systems

H2S

Wax

Sand

LSA Scale

Hydrates

Foaming

Blockage

Trapped pressure

Type of valves and reliability

Size of pipe work

Integrity testing

Reverse flow

Pressure build-up

Migration from other systems

Inventory behind isolations

Duration of isolation

Adequacy of pipe supports

Fail position of ESD valves/blow down valves

Contingency in the event of failure of isolations

Environmental impact of spills or emissions

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Hazard Checklist - Breaking Containment

Note: This checklist should be used in conjunction with Hazard Checklist -

Isolations.

Electrical risk of using portable tools

Flammable or toxic vapours arising from sludge in vessel

Hazardous substances trapped around bends, behind baffles, linings etc.

Chemical reactions with cleaning materials

Environmental impact of spills or emissions

LSA Scale

Pyrophoric scale

Asbestos gaskets

Trapped pressure

Residual pressure

Residual heat

Liquids remaining from flushing

Inert atmospheres

Chemical hazards

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Hazard Checklist - Vessel Entry

Residual gases/vapours

Sludge which may give rise to vapours/gases when disturbed

LSA scale

Adequacy of ventilation

Need for air movers during entry.

Communication difficulties within the vessel or with the standby man

Standby man communication with the CCR

Ingress of gases/vapours from other nearby activities or systems

Use of mechanical tools/power tools/electrical equipment

Slip hazards within the vessel or at the point of entry

Ionising radiation; nucleonic instrumentation

Danger of falling into vessel boots or sumps

Noise, general

Noise when using power tools

Visibility within the vessel

Adequacy of lighting within the vessel

Temperature effects

Oxygen enrichment

Oxygen deficiency

Frequency of gas testing

Location of rescue kits

Competency of standby man

Disposal of vessel cleanings

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Rev No: C2

Page 36 of 41

Dated: September, 2004

Originating Dept: HSE

APPENDIX C: L2RA FORMS

Sheet 1 of __

INSTALLATION :

PERMIT No :

DATE :

TRA REF No :

DEPARTMENT / SYSTEM / LOCATION:

RISK ASSESSMENT TEAM (FIRST NAMED-TRA TEAM LEADER)

NORMAL

IRA

RISK ASSESSMENT TYPE:

SARA

ORA

NAME

POSITION

TASK DESCRIPTION:

REFERENCES AND OTHER RELEVANT INFORMATION :

CONFIRMED ALARP

(e.g. Emergency Provision Required, Competency requirements, Tools & Equipment, additional PPE, P&IDs, Drawings, PTW,

TRA APPROVED BY (OIM/SC/SM):

Procedures, Certificates, other Risk Assessments)

NAME (PRINT) :

SIGNATURE :

POSITION :

DATE :

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Next Revision Date: 30/09/2005

Print Date: 24/07/2010

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Title: Task Risk Assessment

Doc No: UNIF-HSE-PRO-105-C2

Procedure

Rev No: C2

Page 38 of 41

Dated: September, 2004

Originating Dept: HSE

APPENDIX D: HAZARD EFFECT & PROBABILITY TABLES, RISK MATRIX

PERSONAL

PROPERTY

ENVIRONMENTAL

HAZARD EFFECT

DAMAGE

(E) RATING

INJURY

DAMAGE

Total Loss of

Fatality

Major Loss >$5M

Containment

Likely Permanent

Significant Damage

Significant Loss of

Disability

Loss $500k to $5M

Containment

> 100bbl, Limited

ability to control

Moderate Damage

Significant Loss of

Hospital Stay

Loss $100k to

Containment

$500k

> 100bbl only

Workplace affected

DAFWC /

Restricted Work

Minor Loss of

Case / Medical

Minor Loss $10k to

Containment

Treatment / First

$100k

< 100bbl only

Aid

Workplace affected

Simple First Aid

Loss <$10k

Slight Loss of

Injury

Containment < 1bbl

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Doc No: UNIF-HSE-PRO-105-C2

Procedure

Rev No: C2

Page 39 of 41

Dated: September, 2004

Originating Dept: HSE

PROBABILITY GUIDELINES (P)

RATING

Will occur more than once per quarter

HIGH

(H)

nearly every time

Will occur at least once per year, but less than quarterly

MEDIUM

(M)

sometimes

Will occur less than once per year

LOW

(L)

hardly ever

HAZARD EFFECT

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Doc No: UNIF-HSE-PRO-105-C2

Procedure

Rev No: C2

Page 41 of 41

Dated: September, 2004

Originating Dept: HSE

APPENDIX F: RISK HIERARCHY EXAMPLES

Examples

1. Elimination / Prohibition



Use of mechanical device instead of manual

handling



Maximum stacking height



Unauthorised personnel



Prohibit smoking, jewellery, mobile phones

2. Substitution



Solvent-based paint with water-based paint



Dusty powders with pastilles or pellets



Electric hand tools with compressed air



Reduction in size or weight of item

3. Engineering Controls



Local exhaust ventilation for e.g.:

Welding

Soldering

Grinding



Mechanical or electrical isolations



Lighting



Enclosure, e.g.:

Sealable containers

Noise enclosures for turbines or pumps

4. Segregation



Barrier or guard



Separate storage areas



Physical isolations (spade, lock-off)



Access controls

5. Reduction in Personnel or



Job or shift rotation

Time Exposure



Breaks



Hazardous work carried out at low activity

periods such as nights or weekends



Dispense dilute chemical



Increase airflow through work area



Automated feed process instead of manual

6. Personal Protective



Gloves

Equipment



Goggles



Face mask



Boots



Respiratory protective equipment



Chemical suits or gauntlets



Safety harness or inertia reel

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Title: Energy Isolation -

Doc No: UNIF-HSE-PRO-106-C2

Formatted

Electrical

Rev No: C2

Page 3 of 45

Formatted

Dated: August, 2004

Originating Dept: HSE

Formatted

CASPIAN REGION: Electrical Isolation Standard

Formatted

UNIF-HSE-PRC-001

Formatted

AZERBAIJAN BUSINESS UNIT

Formatted

(AzBU)

Formatted

Procedure for:

Energy Isolation - Electrical

Issued for

26.08.04

EFWG

Yvonne Hepburn

Simon Rollason

Gary Campbell

use

Rev

Date

Reason for

Prepared by

Checked by

Approved by TA

Endorsed by

Issue

Notes:

HSE - SAFETY

Azerbaijan BU Document Reference

Asset Code

Dept Code

Document Type

Sequence No

Revision Code

UNIF

HSE

PRO

106

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Title: Energy Isolation -

Doc No: UNIF-HSE-PRO-106-C2

Formatted

Electrical

Rev No: C2

Page 4 of 45

Formatted

Dated: August, 2004

Originating Dept: HSE

Formatted

CASPIAN REGION: Electrical Isolation Standard

Formatted

UNIF-HSE-PRC-001

Formatted

TABLE OF CONTENTS

Formatted

Purpose

Scope

Roles and Responsibilities

3.1

Electrical Functional Work Group

3.2

OIM/Site Manager /Site Controller

3.3

Area Authority (AA)

3.4

Isolating Authority (IA)

3.5

Performing Authority (PA)

3.6

Responsible Electrical Person (REP)

3.7

Electrical Technical Authority

3.8

Senior Authorized Electrical Personnel (SAEP)

3.9

Authorized Electrical Personnel (AEP)

3.10

Authorized Instrument Personnel (AIP)

3.11

Competent Isolator (CI)

3.12

Competent Person (CP)

Within BP this process is managed using CMAS

Self-regulation and Audit

Isolating Authority - Training, Competency and Authorization

Modification and New Facilities

Isolation and Planning

7.1

Isolation

7.2

Isolation Planning

7.3

Switching Programmes

7.4

Isolation Methods

7.5

Isolation Standards

7.6

Risk Assessment of Non-compliant Isolations

7.7

Live Working

7.8

Isolations for Work Near Live Conductor

Isolation Implementation and Control

8.1

Security

8.2

Isolation Tagging

8.3

Positive Identification of Equipment

8.4

Control of Isolations

8.5

Operational Locks

8.6

Boundary Isolations

8.7

Long-term Isolations

8.8

Personal Isolations

8.9

Testing Isolation Integrity - Proving Dead

8.10

Monitoring Isolation Integrity

De-isolation of Plant

Flowsheet Electrical Isolations

Abbreviations and Definitions

References

Appendices

13.1

Appendix A - Applicable to

13.2

Appendix B - Adjacent Working Assessment

13.3

Appendix C - Switching Programme

13.4

Appendix D - Operational Locking System

13.5

Appendix E - Control of Electrical Work

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Page 15 of 23

Title: Energy Isolation -

Doc No: UNIF-HSE-PRO-106-C2

Formatted

Electrical

Rev No: C2

Page 5 of 45

Formatted

Dated: August, 2004

Originating Dept: HSE

Formatted

CASPIAN REGION: Electrical Isolation Standard

Formatted

UNIF-HSE-PRC-001

Formatted

1 Introduction

Formatted

2 Roles and Responsibilities

3 Self-regulation and Audit

4 Isolating Authority - Training, Competency and Authorisation

106

5 Modification and New Facilities

107

6 Isolation and Planning

117

7 Isolation Implementation and Control

1712

8 De-isolation of Plant

2517

9 Flow Sheet Electrical Isolations

2618

Appendix A: Abbreviations and Definitions

2919

Appendix B

3120

Appendix C: Adjacent Working Assessment

3221

Appendix D: Switching Programme

3623

Appendix E: Operational Locking System

4024

Appendix F: Control of Electrical Work

4125

Appendix G: Labels

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Title: Energy Isolation -

Doc No: UNIF-HSE-PRO-106-C2

Formatted

Electrical

Rev No: C2

Page 6 of 45

Formatted

Dated: August, 2004

Originating Dept: HSE

Formatted

CASPIAN REGION: Electrical Isolation Standard

Formatted

UNIF-HSE-PRC-001

Formatted

Introduction

1.1

Purpose

The purpose of this document is to define thea Azerbaijan Business Unit BP Caspian

Formatted

functional standard for the safe isolation of electrical plant or equipment from sources

of electrical energy.

21.2 Scope

Formatted: Bullets and Numbering

This document applies to the electrical isolation of equipment for work. It shall be

Formatted

followed at all Azerbaijan Business UnitBP Caspian operated sites and is applicable

to both onshore and offshore.

Formatted

1.3

SSOW Specific Cross references

Document No

Title of Procedure

Formatted

UNIF-HSE-PRO-104

Procedure for: Authorization

Formatted

UNIF-HSE-GLN-106

Guideline for: Electrical Safety

UNIF-HSE-PRO-103

BU PTW Process

Risk Assessments (Level 2 risk assessment)

UNIF-HSE-PRO-105

Work Site Risk Assessment

UNIF-HSE-PRO-107

Energy Isolation-Process

Roles and Responsibilities

Formatted: Bullets and Numbering

3.12.1 Electrical Functional Work Group

Formatted: Bullets and Numbering

The Electrical Functional Work Group

(EFWG) has produced this document to

Formatted

support the safe system of work. The Document Technical Authority will issue any

new revisions of the document for approval.

2.2

3.2OIM / Site Manager / Site Controller

Formatted: Bullets and Numbering

The OIM / Site Manager / Site Controller is responsible for ensuring that those

Formatted

performing the roles of Area Authority, Responsible Electrical Person, Isolation

Authority and Performing Authority are competent to do so. The OIM / Site Manager

/ Site Controller is responsible for authorizing any deviations from the isolation

standard through the risk assessment process. In doing so, he/she may choose to

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Formatted

Electrical

Rev No: C2

Page 7 of 45

Formatted

Dated: August, 2004

Originating Dept: HSE

Formatted

CASPIAN REGION: Electrical Isolation Standard

Formatted

UNIF-HSE-PRC-001

Formatted

defer or not to carry out the activity and seek further technical guidance if the residual

risk is perceived to be excessive.

The OIM / Site Manager / Site Controller is also responsible for ensuring that plant

and equipment isolations are subject to the appropriate level of self-regulation and

audit.

2.3

3.3Area Authority (AA)

Formatted: Bullets and Numbering

The Area Authority is responsible for approving the isolation design, providing

Formatted

assurance that the design achieves the highest quality of isolation reasonably

practicable. He/she can delegate the detailed isolation design to an appropriately

competent or authorized person. The Area Authority is then responsible for

authorizing the work to proceed under appropriate controls. This includes approval

of any preparatory work and, on completion of the task, the work required to

complete reinstatement.

2.4

3.4Isolating Authority (IA)

Formatted: Bullets and Numbering

The Isolating Authority is responsible for design of an electrical isolation when

Formatted

requested

the

Area Authority. He/she is then responsible for safely isolating a specific section of

plant

items

of equipment to the highest quality and security of isolation, which is reasonably

practicable.

The Isolating Authority is also responsible for demonstrating the integrity of the

isolation to the Performing Authority. The Isolating Authority will be authorized to the

maximum voltage level required for the isolation.

2.5

3.5Performing Authority (PA)

Formatted: Bullets and Numbering

The Performing Authority is the person charged with the responsibility of carrying out

Formatted

the work and has the right to request demonstration of the integrity of any isolation.

The Performing Authority will be a competent person. The Performing Authority will

ensure that they have witnessed, at the point of work, that the conductors are dead.

The Performing Authority may complete this task themselves if suitably authorized.

2.6

3.6Responsible Electrical Person (REP)

Formatted: Bullets and Numbering

This is a role under the „safe system of work‟ or „permit to work system‟ to clearly

Formatted

identify which authorized person, has the responsibility for the electrical system, the

REP is nominated by the OIM / Site Manager / Site Controller from the those persons

having the highest level of authorization required for that site.

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Electrical

Rev No: C2

Page 8 of 45

Formatted

Dated: August, 2004

Originating Dept: HSE

Formatted

CASPIAN REGION: Electrical Isolation Standard

Formatted

UNIF-HSE-PRC-001

Formatted

The REP will :

 Approve any switching programs

 Countersign permits with electrical content where the Area Authority isn‟t

electrically competent, ensuring that the isolation has been correctly designed

and the Isolating Authority has the appropriate authorization level for the work

 AThe REP will assess and recommend site personnel for authorization to

AEP, AIP, CI

At any one time there can be only one REP on site. The REP may also be the

Formatted

isolating authority.

2.7

3.7Electrical Technical Authority (ETA)

Formatted: Bullets and Numbering

The Electrical Technical Authority is an Electrical Engineer who is recognized by

Formatted

management as the site technical authority. The technical authority or their delegate

assesses and recommends site personnel for authorization to SAEP and will assess

and recommend personnel for the role of REP.

2.8

3.8Senior Authorized Electrical Personnel (SAEP)

Formatted: Bullets and Numbering

Electrical personnel who have been formally assessed by the site Electrical

Formatted

Technical Authority and authorized by the OIM / Site Manager / Site Controller to

switch, isolate and test electrical equipment with voltage levels up to and greater than

1000V,. cCan act as an isolating authority under the safe systems of work for

electrical systems with voltage levels up to and greater than 1000V.

2.9

3.9Authorized Electrical Personnel (AEP)

Formatted: Bullets and Numbering

Electrical personnel who have been formally assessed by the site REP and

Formatted

authorized by the OIM / Site Manager / Site Controller to switch, isolate and test

electrical equipment with voltage levels less than 1000V,. Ccan act as an isolating

authority under the safe systems of work for electrical systems with voltage levels

less than 1000V.

3.102.10

Authorized Instrument Personnel (AIP)

Formatted: Bullets and Numbering

Instrument personnel who have been formally assessed by the site REP and

Formatted

authorized by the OIM / Site Manager / Site Controller to switch, isolate and test

control, instrument and telecom equipment with voltage levels less than 50V.

, cCan

act as an isolating authority under the safe systems of work for control, instrument

and telecom systems with voltage levels less than 50V phase to earth.

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Electrical

Rev No: C2

Page 9 of 45

Formatted

Dated: August, 2004

Originating Dept: HSE

Formatted

CASPIAN REGION: Electrical Isolation Standard

Formatted

UNIF-HSE-PRC-001

Formatted

2.11

3.11Competent Isolator (CI)

Formatted: Bullets and Numbering

In special circumstances individuals can be assessed as competent isolators by the

Formatted

site REP and authorized by the OIM / Site Manager / Site Controller for specific items

of equipment providing that they have completed the formal training and have been

assessed as competent.

2.12

3.12Competent Person (CP)

Formatted: Bullets and Numbering

An essential requirement for persons undertaking electrical work is that they are

Formatted

competent, this established bye virtue of training and or experience. A competent

person is capable of recognising danger and knows when to seek guidance when the

work falls outside their area of competence.

The employing company will certify competency of the employee and will supply BP

with copies of their competence assessment as required. The

Within Azerbaijan Business UnitBP certifies the competence of its own employees

using this process is managed using CMAS.

Self - regulation and Audit

Formatted

4Self-regulation and Audit

Formatted: Bullets and Numbering

Business Units shall periodically review isolation related activities, including review of

Formatted

individual isolations and review of overall isolation processes. Such reviews may

also include:

 General compliance with this document and any local procedures

 The assessment of non-compliant isolations and the extent of any approved

deviations

 Registers of competent and authorized persons

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Formatted

Dated: August, 2004

Originating Dept: HSE

Formatted

CASPIAN REGION: Electrical Isolation Standard

Formatted

UNIF-HSE-PRC-001

Formatted

Isolating Authority - Training, Competency and Authoriszation

Formatted

The Isolating Authority will be authorized by OIM / Site Manager / Site Controller

Formatted

based on the following criteria.

Formatted: Bullets and Numbering

Formatted

The Isolating Authority will be:

 Familiar with the site

 Have Electrical First Aid Training

 Will be EX certified, when working on Hydrocarbon Plants

 Where appropriate, will have HV operational training

 Will have been formally and practically assessed for electrical isolations and

recognised as authorized at a specific voltage level for the work site

 The Authorisation levels on site will be as follows:

 Authorised Instrument Person (AIP) authorised to isolate instrument circuits up to

50Vac

 Authorised Electrical Person (AEP) authorised to isolate electrical circuits up to

1000V

 Senior Authorised Electrical Person

(SAEP) authorised to isolate electrical

systems above 1000v and prepare and carry out switching operations

In special circumstances individuals can be assessed as Competent Isolators (CIs)

Formatted

for specific items of equipment providing that they have completed the formal training

and have been assessed as competent on the specific tasks. Site management is

responsible for ensuring that this is recorded so that it is clear which tasks these

individuals are competent to undertake.

Modification and New Facilities

Formatted

6Modification and New Facilities

Formatted: Bullets and Numbering

In relation to existing Installations and sites:

Formatted

 The design of all modification and new facilities shall include a review of the

provision of means of isolation for maintenance to ensure compliance with this

document

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Formatted

CASPIAN REGION: Electrical Isolation Standard

Formatted

UNIF-HSE-PRC-001

Formatted

 Such reviews shall address both isolations within the modified/new facilities and

any opportunities to upgrade existing isolation facilities where these are

inadequate

New isolators supplied as part of a modification or as a replacement shall be

Formatted

provided with a facility to be locked off.

Isolation and Planning

Formatted: Bullets and Numbering

Formatted

7.16.1 Isolation

Formatted: Bullets and Numbering

The highest quality and security of isolations, which is reasonably practicable in the

Formatted

prevailing circumstances, shall always be used. This document sets out the

minimum recommended isolation standard to be used in the Azerbaijan Business

Unit.Caspian

Any isolation, which does not meet the Minimum Recommended Isolation Standard

as defined in section 76.5, including the application of the Mandatory Safeguards,

Formatted

must be assessed using the Level 2 Risk Assessment Process before the isolation is

approved. Should any non-compliant isolation have to be repeatedly justified by risk

assessment, consideration shall be given to a permanently engineered solution.

All key participants in the implementation of the BP Isolations Policy shall be trained

and assessed as competent to the appropriate level in the Electrical Isolation

Standard.

An audit programme shall be established by the OIM / Site Manager / Site Controller

at each site to ensure that regular checks are made on isolations to provide

assurance that the isolations policy and standards are being applied and that lessons

learned are communicated effectively.

6.2

7.2Isolation Planning

Formatted: Bullets and Numbering

Isolation of any piece of equipment shall be planned to minimize risk to personnel,

Formatted

production and property. To achieve this the following information will be required:

 A clear description of the work, ensuring that if the activity includes electrical work

that this is clearly identified

 A clear description of the equipment which needs to be isolated, this will include

the Plant Tag Number and the Plant Tag Description

 A drawing identifying the isolation, earth and disconnection points where this is not

obvious

 Tag references of all the switching and isolation points

 Locks and Labels for securing the isolation points

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Formatted

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Originating Dept: HSE

Formatted

CASPIAN REGION: Electrical Isolation Standard

Formatted

UNIF-HSE-PRC-001

Formatted

 Test equipment for proving effectiveness of the isolation

 Switching program detailing the sequence of switching required to achieve the

isolation where the equipment is fed from more than one source or at the REP‟s

discretion.

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Dated: August, 2004

Originating Dept: HSE

Formatted

CASPIAN REGION: Electrical Isolation Standard

Formatted

UNIF-HSE-PRC-001

Formatted

7.36.3 Switching Programmes

Formatted: Bullets and Numbering

Where main distribution equipment is to be switched it is essential that the equipment

Formatted

isbe

switched

the correct sequence. To achieve this, a switching programme will be required,

detailing the switching sequence. This will be accompanied by a marked up single

line drawing. The switching programme will be prepared by an SAEP and checked

by the REP. Where the REP is alone on site, the site electrical technical authority

will check the switching program. Technical advice will be sought as required.

See Appendix DC for a blank Switching Programme. The Switching Programme

Formatted

does

not

replace

an ICC.

7.46.4 Isolation Methods

Formatted: Bullets and Numbering

The highest quality of isolation, which is reasonably practicable, shall be applied to

Formatted

every individual isolation point. The methods of isolation normally available are

detailed below; listed in decreasing descending order of security and effectiveness.

Key to all of these isolations is the positive identification of the equipment to be

isolated, to this end all equipment and isolation points on a site will be uniquely

identified and clearly labeledlabelled, a secondary check could be to use the cable

numbers which connect the isolator to the equipment. If there is any doubt about the

correct identification of the equipment to be isolated and the isolation point then the

work should be suspended and clarification sought.

(a)

Isolate Circuit, Prove Dead, Disconnect, Lock, Label and Earth

This is a positive isolation of the main phase conductors with an isolator and

Formatted

disconnection of the main phase and neutral conductors by removal of fuses,

links or withdrawal of a circuit breaker or some other means of disconnection. In

addition, tThe circuit is earthed proven dead to ensure that the circuit is

discharged and isis earthed to prevent recharging maintained at earth potential.

Locks and labels are applied to all points of isolation and earthing

Note: When the isolation requires switching of main distribution equipment, a

Switching Program is also required.

(b)

Isolate Circuit, Prove Dead, Disconnect, Lock and Label

Formatted

This is a positive isolation of the main phase conductors with an isolator and

Formatted

disconnection of the main phase and neutral conductors by removal of fuses,

links or withdrawal of a circuit breaker or some other means of disconnection.

The circuit is proven dead to ensure that the circuit is discharged. Locks and

labels are applied to all points of isolation.

Note: Where the isolation switch meets the minimum standard for

Formatted

disconnection, as defined in IEC 60947, and it includes all phases and

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Title: Energy Isolation -

Doc No: UNIF-HSE-PRO-106-C2

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Electrical

Rev No: C2

Page 14 of 45

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Dated: August, 2004

Originating Dept: HSE

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CASPIAN REGION: Electrical Isolation Standard

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UNIF-HSE-PRC-001

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neutral then no further disconnection is necessary if the risk of physical

disconnection outweighs the advantage. However, this is a minimum

standard and it is expected that if fuses or links are part of the circuit that

they will be removed.

(c)

Isolate, Lock and Label

Formatted

This is a positive isolation of the main phase conductors with an isolator; the

isolator type will be of such construction that it breaks the main phase

conductors when open. Locks and labels are applied to all points of isolation.

Note: Isolation by auxiliary control circuits only is not acceptable for isolation

Formatted

purposes.

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Page 15 of 23

Title: Energy Isolation -

Doc No: UNIF-HSE-PRO-106-C2

Formatted

Electrical

Rev No: C2

Page 15 of 45

Formatted

Dated: August, 2004

Originating Dept: HSE

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CASPIAN REGION: Electrical Isolation Standard

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UNIF-HSE-PRC-001

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7.56.5 Isolation Standards

Formatted: Bullets and Numbering

Operating Voltages

Isolation requirements for

<50V

>50V < 1000V

>1000V

Non-electrical work only

N/A

Is+LL

Electrical work on single circuit

Is+P+D+Label

Is+P+D+LL

Is+P+D+LL+E

Electrical work on distribution

system

N/A

SP+Is+P+D+LL

SP+Is+P+D+LL+E

Note 1: If any work requires Proving Dead in a Hazardous Area, a gas monitor will be

required with a Hot Work 2 (Spark Potential) Permit.

Note 2: If any work is done adjacent to live conductors then this must be considered

when providing the isolation.

Is - Isolation of the main phase conductors with an isolator

LL - Lock and labeledlabelled

D - Main phase and neutral conductors disconnected

P - Prove dead with an approved voltage tester which is proved before and after testing

E - Earth the isolated conductors

SP - Authorized Switching Programme

Precautions

<50V

>50V < 1000V

>1000V

SAEP or AEP

under direct

Authorisation level required to

AIP, AEP,

supervision of

perform the isolation

SAEP

AEP, SAEP

SAEP

Accompanied for proving dead,

AEP, SAEP

distribution switching, testing,

based on Risk

fault finding

assessment

SAEP

Communications link

Yes

Nomex gloves or leather

gauntlets

Yes

Note 3: If work is to be accompanied there must be a clear understanding between the

Isolating Authority and the accompanying person identifying what the

accompanying person will do in the event of an emergency.

Table 1 Minimum Recommended Isolations Standard

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Title: Energy Isolation -

Doc No: UNIF-HSE-PRO-106-C2

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Electrical

Rev No: C2

Page 16 of 45

Formatted

Dated: August, 2004

Originating Dept: HSE

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CASPIAN REGION: Electrical Isolation Standard

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UNIF-HSE-PRC-001

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7.66.6 Risk Assessment of Non-compliant Isolations

Formatted: Bullets and Numbering

In the event that the Minimum Recommended Isolation Standard cannot be

Formatted

achieved, a Risk Assessment shall be carried out in accordance with SSOW

guidelines

The assessment team, including the REP shall specify appropriate safeguards, which

may

replace

addition

those listed in Table 1. The team shall be satisfied that these safeguards shall

reduce the risks to an acceptable level before the task requiring isolation is permitted

to proceed.

The OIM / Site Manager / Site Controller must authorize all level 2 risk assessments

prior to any work proceeding.

7.76.7 Live Working

Formatted: Bullets and Numbering

Live working is defined as work on or in close proximity to live conductors; this

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includes

testing.

All conductors will be assumed live unless proven dead.

(See section 8.9 for

guidelines

for

proving dead.)

Live work will not be a normal activity and will not be carried out unless there is no

other reasonably practicable method available. Where it is not possible to avoid live

work, an appropriate level of risk assessment shall be carried out before work

commences.

Is the live working justified? Consider:

 If the work could be done when equipment is isolated (an example of work which

must be done live would be work on battery systems)

 If isolating the equipment introduces other greater safety risks

 When Iidentifyingication theof Rrisks consider? Consider:

Formatted: Bullets and Numbering

 Voltage level working on

 Fault level of the equipment and the arc energy if a fault develops while working

 Working environment (wet, dusty, noisy, vibration, at height etc)

 What exposed voltage levels will be adjacent to the worksite

 What could go wrong

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Title: Energy Isolation -

Doc No: UNIF-HSE-PRO-106-C2

Formatted

Electrical

Rev No: C2

Page 17 of 45

Formatted

Dated: August, 2004

Originating Dept: HSE

Formatted

CASPIAN REGION: Electrical Isolation Standard

Formatted

UNIF-HSE-PRC-001

Formatted

Can adequate precautions be taken to reduce risk to an acceptable level? Some

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precautions whichprecautions, which should be considered:

 Competent people with training and experience

 Insulated tools and test equipment

 Accompanied work - /Accompanying person to be First Aid Trained /Itand it should

be clear what is expected of the accompanying person to ensure that they are

competent to accomplish this expectation

 Insulated barriers, mats, grab hooks

Formatted: Bullets and Numbering

 Work site control (ege.g. cordoning off area, limiting access)

Formatted: Bullets and Numbering

 Additional and / or specialist personal protective equipment

Formatted: Bullets and Numbering

 Reference to any specific safety rules or guidance

Formatted: Bullets and Numbering

 See Appendix EF for a flowchart covering the Control of Electrical Work.

Formatted: Bullets and Numbering

7.86.8 Isolations for Work Near Live Conductor

Frequently, work inside of complex control equipment means that although the circuit

Formatted

to be worked on is isolated, there may be other circuits that are still energised. It is a

requirement that the risk from these adjacent conductors is assessed and

appropriate precautions taken to reduce the risk.

See Appendix CB for an adjacent working assessment form.

Formatted

Isolation Implementation and Control

Formatted: Bullets and Numbering

8.17.1 Security

Formatted: Bullets and Numbering

Any isolation must effectively disconnect the worksite from all sources of energy.

Formatted

Locks must be used to prevent unauthorized de-isolation; to this end unique locking

devices must be used. Keys to any locks used for isolation purposes must be

effectively controlled via the Area Authority and the Permit to Work

- Isolation

Confirmation Certificate (ICC). Only when the ICC allows should the Area Authority

make the key available to remove a lock.

The locks should be a high security type which are tamper proof.

See appendix E

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Title: Energy Isolation -

Doc No: UNIF-HSE-PRO-106-C2

Formatted

Electrical

Rev No: C2

Page 18 of 45

Formatted

Dated: August, 2004

Originating Dept: HSE

Formatted

CASPIAN REGION: Electrical Isolation Standard

Formatted

UNIF-HSE-PRC-001

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7.2

Isolation Labelling

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8.2Isolation Tagging

Formatted: Bullets and Numbering

All isolation points shall be clearly identified, tagged and recorded on the ICC.

Where

not

obvious,

a drawing should be attached to the ICC showing the location of each isolation and

earth

point

(where applied).

At the isolation point there should be a Yellow Isolation Label with the following

clearly identified:

ICC number



Formatted: Bullets and Numbering

 ICC point number

 The Tag number of the isolation point

 Reason for isolation

 Isolation Authority name and signature

 Date

 At the Earth point there should be a Green Earth Label with the following clearly

identified:

ICC number



Formatted: Bullets and Numbering

 ICC point number

 The Tag number of the isolation point

 Reason for isolation

 Isolation Authority name and signature

 Date

Adjacent live circuits will be identified with a Red Danger notice, e.g. live bus bar

Formatted

shutters when work is to be carried on the circuit.

See Appendix G for labels

Formatted

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Military reference books and manuals (2009-2023, Volume 6) - page 6