AS/NZS 4761.1:2008

AS/NZS 4761.1:2008 COMPETENCIES FOR WORKING WITH ELECTRICAL EQUIPMENT FOR HAZARDOUS AREAS (EEHA) - COMPETENCY STANDARDS

PREFACE

CONTENTS

FOREWORD

SECTION 1 SCOPE AND GENERAL

1.1 SCOPE

1.2 APPLICATION

1.3 REFERENCED DOCUMENTS

1.4 DEFINITIONS AND TERMS

1.4.1 Actions to limit risk of an explosion

1.4.2 Appropriate personnel

1.4.3 Approved, approval

1.4.4 Assessment of competence

1.4.5 Australian Qualifications Framework (AQF)

1.4.6 Australian Quality Training Framework (AQTF)

1.4.7 Authority, regulatory

1.4.8 Certification

1.4.9 Classification of hazardous areas

1.4.10 Competency

1.4.11 Competency, alternative

1.4.12 Competent person

1.4.13 Competency Standard Unit (AUS)/Unit Standard (NZ)

1.4.14 Competency Standards

1.4.15 Defects

1.4.16 Endorsement

1.4.17 Equipment marking

1.4.18 Established procedures

1.4.19 Explosion properties of hazardous materials

1.4.20 Explosion-protected equipment

1.4.21 Explosion-protection techniques

1.4.22 Group (of an electrical equipment for explosive atmospheres)

1.4.23 Hazard and risk assessment

1.4.24 Hazardous areas

1.4.25 Hazardous materials

1.4.26 Inspection, close

1.4.27 Inspection, detailed

1.4.28 Inspection, initial

1.4.29 Inspection, periodic

1.4.30 Inspection, sample

1.4.31 Inspection, schedule

1.4.32 Inspection, visual

1.4.33 Inspector, actions taken by an

1.4.34 Installation

1.4.35 Integrity of explosion-protected equipment

1.4.36 Load and duty requirements of wiring

1.4.37 National Qualifications Framework (NQF)∗

1.4.38 New Zealand Qualifications Authority (NZQA)

1.4.39 Non-conformance

1.4.40 Occupational Health and Safety (OHS in Australia, OSH in New Zealand) policies and procedures

1.4.41 Other items (not explosion-protected)

1.4.42 Pre-commission testing

1.4.43 Prerequisites

1.4.44 Prerequisite-Alternative pathway

1.4.45 Process specialist personnel

1.4.46 Re-certification (Supplementary approval)

1.4.47 Requirements

1.4.48 Servicing

1.4.49 Skills for employment

1.4.50 Special tools, equipment and testing devices

1.4.51 Specifications

1.4.52 Standards

1.4.53 Temperature classification

1.4.54 Training package

1.4.55 Verification dossier

1.4.56 Wiring system

1.4.57 Zones, hazardous

1.4.58 Zones in explosive gas atmospheres

1.4.59 Zones in explosive dusts atmospheres

SECTION 2 COMPETENCY STANDARD UNITS (AUS)/UNIT STANDARDS (NZ)

2.1 SCOPE

2.2 REPORT ON THE INTEGRITY OF EXPLOSION-PROTECTED EQUIPMENT IN HAZARDOUS AREAS

2.2.1 Scope

2.2.2 Application

2.2.3 Prerequisites

2.2.4 Elements and performance criteria

2.2.5 Range statement

2.2.6 Evidence guide

2.3 ATTEND TO BREAKDOWNS IN HAZARDOUS AREAS

2.3.1 Scope

2.3.2 Application

2.3.3 Prerequisites

2.3.4 Elements and performance criteria

2.3.5 Range statement

2.3.6 Evidence guide

2.4 USE AND MAINTAIN THE INTEGRITY OF PORTABLE GAS DETECTION DEVICES

2.4.1 Scope

2.4.2 Application

2.4.3 Prerequisites

2.4.4 Elements and performance criteria

2.4.5 Range statement

2.4.6 Evidence guide

2.5 INSTALL EXPLOSION-PROTECTED EQUIPMENT AND WIRING SYSTEMS

2.5.1 Scope

2.5.2 Application

2.5.3 Prerequisites

2.5.4 Elements and performance criteria

2.5.5 Range statement

2.5.6 Evidence guide

2.6 INSTALL AND MAINTAIN THE INTEGRITY OF FIXED GAS DETECTION EQUIPMENT

2.6.1 Scope

2.6.2 Application

2.6.3 Prerequisites

2.6.4 Elements and performance criteria

2.6.5 Range statement

2.6.6 Evidence guide

2.7 MAINTAIN EQUIPMENT IN HAZARDOUS AREAS

2.7.1 Scope

2.7.2 Application

2.7.3 Prerequisites

2.7.4 Elements and performance criteria

2.7.5 Range statement

2.7.6 Evidence guide

2.8 OVERHAUL AND REPAIR OF EXPLOSION-PROTECTED EQUIPMENT

2.8.1 Scope

2.8.2 Application

2.8.3 Prerequisites

2.8.4 Elements and performance criteria

2.8.5 Range statement

2.8.6 Evidence guide

2.9 CONDUCT A CONFORMITY ASSESSMENT OF EXPLOSION-PROTECTED EQUIPMENT

2.9.1 Scope

2.9.2 Application

2.9.3 Prerequisites

2.9.4 Elements and performance criteria

2.9.5 Range statement

2.9.6 Evidence guide

2.10 CONDUCT TESTING OF HAZARDOUS AREAS INSTALLATIONS

2.10.1 Scope

2.10.2 Application

2.10.3 Prerequisites

2.10.4 Elements and performance criteria

2.10.5 Range statement

2.10.6 Evidence guide

2.11 CONDUCT VISUAL INSPECTION OF EXISTING HAZARDOUS AREAS INSTALLATIONS

2.11.1 Scope

2.11.2 Application

2.11.3 Prerequisites

2.11.4 Elements and performance criteria

2.11.5 Range statement

2.11.6 Evidence guide

2.12 CONDUCT DETAILED INSPECTION OF HAZARDOUS AREAS INSTALLATIONS

2.12.1 Scope

2.12.2 Application

2.12.3 Prerequisites

2.12.4 Elements and performance criteria

2.12.5 Range statement

2.12.6 Evidence guide

2.13 DEVELOP AND MANAGE MAINTENANCE PROGRAMS FOR HAZARDOUS AREAS ELECTRICAL EQUIPMENT

2.13.1 Scope

2.13.2 Application

2.13.3 Prerequisites

2.13.4 Elements and performance criteria

2.13.5 Range statement

2.13.6 Evidence guide

2.14 MANAGE COMPLIANCE OF HAZARDOUS AREAS

2.14.1 Scope

2.14.2 Application

2.14.3 Prerequisites

2.14.4 Elements and performance criteria

2.14.5 Range statement

2.14.6 Evidence guide

2.15 DESIGN AND DEVELOP MODIFICATIONS TO EXPLOSION-PROTECTED EQUIPMENT

2.15.1 Scope

2.15.2 Application

2.15.3 Prerequisites

2.15.4 Elements and performance criteria

2.15.5 Range statement

2.15.6 Evidence guide

2.16 CLASSIFY HAZARDOUS AREAS

2.16.1 Scope

2.16.2 Application

2.16.3 Prerequisites

2.16.4 Elements and performance criteria

2.16.5 Range statement

2.16.6 Evidence guide

2.17 PLAN ELECTRICAL INSTALLATIONS FOR HAZARDOUS AREAS

2.17.1 Scope

2.17.2 Application

2.17.3 Prerequisites

2.17.4 Elements and performance criteria

2.17.5 Range statement

2.17.6 Evidence guide

2.18 DESIGN EXPLOSION-PROTECTED ELECTRICAL SYSTEMS AND INSTALLATIONS

2.18.1 Scope

2.18.2 Application

2.18.3 Prerequisites

2.18.4 Elements and performance criteria

2.18.5 Range statement

2.18.6 Evidence guide

2.19 DESIGN GAS DETECTION SYSTEMS AND INSTALLATIONS

2.19.1 Scope

2.19.2 Application

2.19.3 Prerequisites

2.19.4 Elements and performance criteria

2.19.5 Range statement

2.19.6 Evidence guide

2.20 CARRY OUT OVERHAUL AND REPAIR OF EXPLOSION-PROTECTED EQUIPMENT

2.20.1 Scope

2.20.2 Application

2.20.3 Prerequisites

2.20.4 Elements and performance criteria

2.20.5 Range statement

2.20.6 Evidence guide

2.21 CONDUCT AUDIT OF HAZARDOUS AREAS INSTALLATIONS

2.21.1 Scope

2.21.2 Application

2.21.3 Prerequisites

2.21.4 Elements and performance criteria

2.21.5 Range statement

2.21.6 Evidence guide

2.22 ASSESS THE FITNESS-FOR-PURPOSE OF HAZARDOUS AREAS EXPLOSION-PROTECTED EQUIPMENT

2.22.1 Scope

2.22.2 Application

2.22.3 Prerequisites

2.22.4 Elements and performance criteria

2.22.5 Range statement

2.22.6 Evidence guide

2.23 REPAIR REELING, TRAILING AND FLEXIBLE CABLES

2.23.1 Scope

2.23.2 Application

2.23.3 Prerequisites

2.23.4 Elements and performance criteria

2.23.5 Range statement

2.23.6 Evidence guide

2.24 TEST REELING, TRAILING AND FLEXIBLE CABLES

2.24.1 Scope

2.24.2 Application

2.24.3 Prerequisites

2.24.4 Elements and performance criteria

2.24.5 Range statement

2.24.6 Evidence guide

2.25 INSPECT AND FIT PLUGS/COUPLERS FOR REELING, TRAILING AND FLEXIBLE CABLES

2.25.1 Scope

2.25.2 Application

2.25.3 Prerequisites

2.25.4 Elements and performance criteria

2.25.5 Range statement

2.25.6 Evidence guide

2.26 VERIFY COMPLIANCE OF REPAIRED REELING, TRAILING AND FLEXIBLE CABLES

2.26.1 Scope

2.26.2 Application

2.26.3 Prerequisites

2.26.4 Elements and performance criteria

2.26.5 Range statement

2.26.6 Evidence guide

2.27 DISCONNECT AND RECONNECT EXPLOSION-PROTECTED EQUIPMENT CONNECTED TO LOW VOLTAGE SUPPLY

2.27.1 Scope

2.27.2 Application

2.27.3 Prerequisites

2.27.4 Elements and performance criteria

2.27.5 Range statement

2.27.6 Evidence guide

SECTION 3 ESSENTIAL KNOWLEDGE AND ASSOCIATED SKILLS

3.1 GENERAL

3.2 DESCRIPTION OF ESSENTIAL KNOWLEDGE AND ASSOCIATED SKILLS

3.2.1 Hazardous areas and explosion-protection principles

3.2.2 Explosion-protection techniques

3.2.3 Flameproof (Ex‘d’) explosion-protection technique

3.2.4 Increased safety (Ex ‘e’) explosion-protection technique

3.2.5 Non-sparking (Ex ‘n’) explosion-protection technique

3.2.6 Intrinsic safety (Ex ‘i’) explosion-protection technique

3.2.7 Pressurization (Ex ‘p’) explosion-protection technique

3.2.8 Ex ‘tD’—Explosion-protection technique

3.2.9 Common characteristics of explosion-protection techniques

3.2.10 Hazardous areas requirements

3.2.11 Hazardous areas cable termination devices and techniques

3.2.12 Hazardous areas detailed inspection techniques

3.2.13 Explosion-protected equipment overhaul and repair

3.2.14 Explosion-protected equipment modification

3.2.15 Hazardous areas installation planning

3.2.16 Common classified hazardous areas

3.2.17 Hazardous areas classification techniques

3.2.18 Hazardous areas visual inspection requirements

3.2.19 Hazardous areas management

3.2.20 Explosion-protected electrical systems design

3.2.21 Explosion-protected equipment conformity assessment

3.2.22 Hazardous areas installation testing

3.2.23 Explosion-protection visual checks

3.2.24 Gas detection-Portable devices

3.2.25 Gas detection-Fixed equipment installation and maintenance

3.2.26 Evaluation and selection of gas detection equipment-Portable and fixed

3.2.27 Basic properties, behaviour and detection of gases and vapours

3.2.28 Gas detection-Instructions in the use of portable devices

3.2.29 Gas detection selection and installation design

3.2.30 Conformity assessment of explosion-protected equipment

3.2.31 Fitness-for-purpose of equipment for use in a hazardous area

3.2.32 Hazardous areas auditing processes

3.2.33 Reeling, trailing and flexible cables and repair techniques

3.2.34 Electrical fundamentals and cables testing techniques

3.2.35 Reeling, trailing and flexible cable plug and coupler inspection and fitting techniques

3.2.36 Status reports using established procedures

SECTION 4 ASSESSMENT

4.1 GENERAL

4.1.1 Attributing competency

4.1.2 Sufficiency of evidence

4.1.3 Currency of evidence

4.1.4 Authenticity

4.2 SOURCES OF EVIDENCE

4.2.1 General

4.2.2 Evidence of essential knowledge

4.2.3 Evidence of competent performance

4.3 ASSESSMENT PROCESSES

4.3.1 Conducting and managing assessment

4.3.2 Qualification of assessors

APPENDIX A - SPECIFIC PREREQUISITE UNITS AND RECOMMENDED GENERAL COMPETENCIES FOR ACHIEVEMENT OF EACH COMPETENCY...

APPENDIX B -

APPENDIX C - LIST OF STANDARDS RELEVANT TO THE COMPETENCY STANDARD UNITS (AUS)/UNIT STANDARDS (NZ)

APPENDIX D - LIMITING ENDORSEMENT OF COMPETENCIES FOR WORK CONFINED TO COAL MINING

D1 SCOPE

D2 ENDORSEMENTS

D2.1 Basis of endorsements

D2.2 Means of endorsement

D2.3 Units allowing Group I endorsement

D2.4 Assessment methodology

APPENDIX E - NATIONAL COMPETENCY CODING SYSTEMS

APPENDIX F - SUMMARY OF ESSENTIAL KNOWLEDGE AND ASSOCIATED SKILLS FOR EACH UNIT OF COMPETENCY (AUS)/UNIT STANDARD (NZ)

APPENDIX G - ASSESSMENT OF EXISTING WORKERS

G1 SCOPE

G2 EXTENT OF RECOGNITION

G2.1 General

G2.2 Minimum level of recognition

G2.3 Assessment methodology

APPENDIX H - LIST OF INTERNATIONAL STANDARDS THAT MAY BE RELEVANT TO THE COMPETENCY STANDARD UNITS (AUS)/UNIT STANDARDS (NZ)

APPENDIX I - EQUIVALENCE OF COMPETENCY STANDARD UNITS IN AS/NZS 4761.1:2003 AND AS/NZS 4761.1:2008