AS/NZS 4761.1:2003

1 - AS/NZS 4761.1:2003 COMPETENCIES FOR WORKING WITH ELECTRICAL EQUIPMENT FOR HAZARDOUS AREAS (EEHA) - COMPETENCY STANDARDS
4 - PREFACE
5 - CONTENTS
7 - FOREWORD
9 - SECTION 1 SCOPE AND GENERAL
9 - 1.1 SCOPE
9 - 1.2 APPLICATION
9 - 1.3 REFERENCED DOCUMENTS
10 - 1.4 DEFINITIONS AND TERMS
10 - 1.4.1 Actions to limit risk of an explosion
10 - 1.4.2 Appropriate personnel
10 - 1.4.3 Approved, approval
10 - 1.4.4 Assessment of competence
11 - 1.4.5 Australian Qualifications Framework (AQF)
11 - 1.4.6 Australian Quality Training Framework (AQTF)
11 - 1.4.7 Authority, regulatory
11 - 1.4.8 Certification
11 - 1.4.9 Classification of hazardous areas
11 - 1.4.10 Competency
11 - 1.4.11 Competent person
11 - 1.4.12 Competency, Unit of
12 - 1.4.13 Competency Standards
12 - 1.4.14 Defects
12 - 1.4.15 Endorsement
13 - 1.4.16 Equipment marking
13 - 1.4.17 Established procedures
13 - 1.4.18 Explosion properties of hazardous materials
14 - 1.4.19 Explosion-protected equipment
14 - 1.4.20 Explosion-protection techniques
14 - 1.4.21 Group (of an electrical equipment for explosive atmospheres)
14 - 1.4.22 Hazard and risk assessment
14 - 1.4.23 Hazardous area
14 - 1.4.24 Hazardous materials
14 - 1.4.25 Inspection, close
14 - 1.4.26 Inspection, detailed
14 - 1.4.27 Inspection, initial
15 - 1.4.28 Inspection, periodic
15 - 1.4.29 Inspection, sample
15 - 1.4.30 Inspection, schedule
15 - 1.4.31 Inspection, visual
15 - 1.4.32 Inspector, actions taken by an
15 - 1.4.33 Installation
15 - 1.4.34 Integrity (of explosion-protected equipment )
15 - 1.4.35 Key competencies
15 - 1.4.36 Load and duty requirements (of wiring)
15 - 1.4.37 Non-conformance
15 - 1.4.38 O H & S policies and procedures
15 - 1.4.39 Other items
16 - 1.4.40 Pre-commission testing
16 - 1.4.41 Process specialist personnel
16 - 1.4.42 Re-certification/ Supplementary approval
16 - 1.4.43 Requirements
16 - 1.4.44 Servicing
16 - 1.4.45 Special tools, equipment and testing devices
16 - 1.4.46 Specifications
16 - 1.4.47 Standards
16 - 1.4.48 Temperature classification
17 - 1.4.49 Training Package
17 - 1.4.50 Verification dossier
17 - 1.4.51 Wiring system
17 - 1.4.52 Zones, hazardous
17 - 1.4.53 Zones in explosive gas atmospheres
17 - 1.4.54 Zones in explosive dusts atmospheres
18 - SECTION 2 UNITS OF COMPETENCY
18 - 2.1 SCOPE
19 - 2.2 UTE NES 010 B-REPORT ON THE INTEGRITY OF EXPLOSION-PROTECTED EQUIPMENT IN HAZARDOUS AREAS
19 - 2.2.1 Scope
19 - 2.2.2 Prerequisites
19 - 2.2.3 Elements and performance criteria
20 - 2.2.4 Range statement
20 - 2.2.5 Evidence guide
21 - 2.3 UTE NES 012 B-ATTEND TO BREAKDOWNS IN HAZARDOUS AREAS
21 - 2.3.1 Scope
21 - 2.3.2 Prerequisites
21 - 2.3.3 Elements and performance criteria
22 - 2.3.4 Range statement
23 - 2.3.5 Evidence guide
23 - 2.4 UTE NES 020 A-USE AND MAINTAIN THE INTEGRITY OF PORTABLE GAS DETECTION DEVICES
23 - 2.4.1 Scope
23 - 2.4.2 Prerequisites
23 - 2.4.3 Elements and performance criteria
24 - 2.4.4 Range statement
24 - 2.4.5 Evidence guide
25 - 2.5 UTE NES 107 B-INSTALL EXPLOSION-PROTECTED EQUIPMENT AND WIRING SYSTEMS
25 - 2.5.1 Scope
25 - 2.5.2 Prerequisites
25 - 2.5.3 Elements and performance criteria
26 - 2.5.4 Range statement
27 - 2.5.5 Evidence guide
27 - 2.6 UTE NES 116 A-INSTALL AND MAINTAIN INTEGRITY OF FIXED GAS DETECTION EQUIPMENT
27 - 2.6.1 Scope
28 - 2.6.2 Prerequisites
28 - 2.6.3 Elements and performance criteria
28 - 2.6.4 Range statement
29 - 2.6.5 Evidence guide
29 - 2.7 UTE NES 214 B-MAINTAIN EQUIPMENT IN HAZARDOUS AREAS
29 - 2.7.1 Scope
29 - 2.7.2 Prerequisites
30 - 2.7.3 Elements and performance criteria
31 - 2.7.4 Range statement
31 - 2.7.5 Evidence guide
32 - 2.8 UTE NES 215 B-OVERHAUL AND REPAIR EXPLOSION-PROTECTED EQUIPMENT
32 - 2.8.1 Scope
32 - 2.8.2 Prerequisite units
32 - 2.8.3 Elements and performance criteria
33 - 2.8.4 Range statement
34 - 2.8.5 Evidence guide
34 - 2.9 UTE NES 407 B-ASSESS EXPLOSION-PROTECTED EQUIPMENT FOR COMPLIANCE WITH STANDARDS
34 - 2.9.1 Scope
35 - 2.9.2 Prerequisites
35 - 2.9.3 Elements and performance criteria
36 - 2.9.4 Range statement
36 - 2.9.5 Evidence guide
37 - 2.10 UTE NES 408 B-TEST INSTALLATIONS IN HAZARDOUS AREAS
37 - 2.10.1 Scope
37 - 2.10.2 Prerequisites
37 - 2.10.3 Elements and performance criteria
38 - 2.10.4 Range statement
38 - 2.10.5 Evidence guide
39 - 2.11 UTE NES 409 B-CONDUCT CLOSE INSPECTION OF EXISTING HAZARDOUS AREAS INSTALLATIONS
39 - 2.11.1 Scope
39 - 2.11.2 Prerequisites
39 - 2.11.3 Elements and performance criteria
40 - 2.11.4 Range statement
40 - 2.11.5 Evidence guide
41 - 2.12 UTE NES 410 B-CONDUCT DETAILED INSPECTION OF HAZARDOUS AREAS INSTALLATIONS
41 - 2.12.1 Scope
41 - 2.12.2 Prerequisites
41 - 2.12.3 Elements and performance criteria
42 - 2.12.4 Range statement
43 - 2.12.5 Evidence guide
43 - 2.13 UTE NES 609 B-DEVELOP AND MANAGE MAINTENANCE PROGRAMS FOR HAZARDOUS AREAS ELECTRICAL EQUIPMENT
44 - 2.13.1 Scope
44 - 2.13.2 Prerequisites
44 - 2.13.3 Elements and performance criteria
45 - 2.13.4 Range statement
45 - 2.13.5 Evidence guide
46 - 2.14 UTE NES 610 B-ENSURE THE SAFETY OF HAZARDOUS AREAS
46 - 2.14.1 Scope
46 - 2.14.2 Prerequisites
46 - 2.14.3 Elements and performance criteria
47 - 2.14.4 Range statement
47 - 2.14.5 Evidence guide
48 - 2.15 UTE NES 705 B-DESIGN AND DEVELOP MODIFICATIONS TO EXPLOSION-PROTECTED EQUIPMENT
48 - 2.15.1 Scope
48 - 2.15.2 Prerequisites
48 - 2.15.3 Elements and performance criteria
49 - 2.15.4 Range statement
50 - 2.15.5 Evidence guide
51 - 2.16 UTE NES 706 B-CLASSIFY HAZARDOUS AREAS
51 - 2.16.1 Scope
51 - 2.16.2 Prerequisites
51 - 2.16.3 Elements and performance criteria
52 - 2.16.4 Range statement
52 - 2.16.5 Evidence guide
53 - 2.17 UTE NES 707 B-DESIGN ELECTRICAL INSTALLATIONS IN HAZARDOUS AREAS
53 - 2.17.1 Scope
53 - 2.17.2 Prerequisites
53 - 2.17.3 Elements and performance criteria
54 - 2.17.4 Range statement
54 - 2.17.5 Evidence guide
55 - 2.18 UTE NES 708 B-DESIGN EXPLOSION-PROTECTED ELECTRICAL SYSTEMS
55 - 2.18.1 Scope
55 - 2.18.2 Prerequisites
55 - 2.18.3 Elements and performance criteria
56 - 2.18.4 Range statement
56 - 2.18.5 Evidence guide
57 - 2.19 UTE NES 711 A-DESIGN GAS DETECTION SYSTEMS
57 - 2.19.1 Scope
57 - 2.19.2 Prerequisites
57 - 2.19.3 Elements and performance criteria
58 - 2.19.4 Range statement
58 - 2.19.5 Evidence guide
59 - SECTION 3 ESSENTIAL KNOWLEDGE AND ASSOCIATED SKILLS
59 - 3.1 GENERAL
59 - 3.2 DESCRIPTION OF ESSENTIAL KNOWLEDGE AND ASSOCIATED SKILLS
59 - 3.2.1 Hazardous areas and explosion-protection principles
60 - 3.2.2 Explosion-protected equipment
60 - 3.2.3 Flameproof (Ex'd') explosion-protection technique
61 - 3.2.4 Increased safety (Ex'e') explosion-protection technique
61 - 3.2.5 Non-sparking (Ex'n') explosion-protection technique
61 - 3.2.6 Intrinsic safety (Ex'i') explosion-protection technique
62 - 3.2.7 Pressurization (Ex'p') explosion-protection technique
62 - 3.2.8 Explosion-protection techniques for dusts
62 - 3.2.9 Common characteristics of explosion-protection techniques
62 - 3.2.10 Hazardous areas installation and maintenance requirements
63 - 3.2.11 Hazardous areas cable termination techniques
64 - 3.2.12 Hazardous areas detailed inspection techniques
64 - 3.2.13 Explosion-protected equipment overhaul and repair
65 - 3.2.14 Explosion-protected equipment modification
66 - 3.2.15 Hazardous areas installation planning
67 - 3.2.16 Common classified hazardous areas
67 - 3.2.17 Hazardous areas classification techniques
67 - 3.2.18 Hazardous areas close inspection requirements
68 - 3.2.19 Hazardous areas management
68 - 3.2.20 Explosion-protected electrical systems design
69 - 3.2.21 Explosion-protected equipment conformity assessment
69 - 3.2.22 Hazardous areas installation testing
70 - 3.2.23 Explosion-protection visual checks
70 - 3.2.24 Gas detection: portable devices
70 - 3.2.25 Gas detection: fixed equipment
70 - 3.2.26 Evaluation and selection of gas detection equipment: portable and fixed
72 - SECTION 4 ASSESSMENT
72 - 4.1 GENERAL
72 - 4.1.1 Attributing competency
72 - 4.1.2 Sufficiency of evidence
72 - 4.1.3 Currency of evidence
72 - 4.1.4 Authenticity
72 - 4.2 SOURCES OF EVIDENCE
72 - 4.2.1 General
72 - 4.2.2 Evidence of essential knowledge
73 - 4.2.3 Evidence of competent performance
73 - 4.3 ASSESSMENT PROCESSES
73 - 4.3.1 Conducting and managing assessment
74 - 4.3.2 Qualification of assessors
75 - APPENDIX A - SPECIFIC PREREQUISITE UNITS AND RECOMMENDED GENERAL COMPETENCIES FOR ACHIEVEMENT OF EACH UNIT OF COMPETENCY...
78 - APPENDIX B - LIST OF STANDARDS RELEVANT TO THE UNITS OF COMPETENCY
82 - APPENDIX C - LIMITING ENDORSEMENT OF COMPETENCIES FOR WORK CONFINED TO COAL MINING
82 - C1 SCOPE
82 - C2 ENDORSEMENTS
82 - C2.1 Basis of endorsements
82 - C2.2 Means of endorsement
82 - C2.3 Units allowing Group I endorsement
83 - C2.4 Assessment methodology
84 - APPENDIX D - KEY COMPETENCIES
85 - APPENDIX E - NATIONAL COMPETENCY CODING SYSTEMS
85 - E1 AUSTRALIA
85 - E2 NEW ZEALAND
86 - APPENDIX F - SUMMARY OF ESSENTIAL KNOWLEDGE AND ASSOCIATED SKILLS FOR EACH UNIT OF COMPETENCY (AUS)/UNIT STANDARD (NZ)
92 - APPENDIX G - ASSESSMENT OF EXISTING WORKERS
92 - G1 SCOPE
92 - G2 EXTENT OF RECOGNITION
92 - G2.1 General
92 - G2.2 Minimum level of recognition
92 - G2.3 Assessment methodology

Specifies the competencies required for work associated with electrical equipment for hazardous areas (commonly termed 'Ex' equipment and the stanadrds to which competency is to be assessed and attributed. The competencies specified in This Standard are intended as additional competencies to those previously acquired. This Standard applies to all personnel dealing with explosion-protected electrical equipment for hazardous areas (EEHA).

This Standard specifies the competencies required for work associated with electrical equipment for hazardous areas (commonly termed ‘Ex’ equipment) and the standards to which competency is to be assessed and attributed. The competencies specified in this Standard are intended as additional competencies to those previously acquired. NOTE: Appendix A summarizes the specific prerequisite Units and recommended general competencies to achieve Units of Competency in this Standard.

First published as part of AS/NZS 4761.1(Int):2000, AS/NZS 4761.2(Int):2000, AS/NZS 4761.3(Int):2000 and AS/NZS 4761.4(Int):2000.
AS/NZS 4761.1(Int):2000, AS/NZS 4761.2(Int):2000, AS/NZS 4761.3(Int):2000 and AS/NZS 4761.4(Int):2000 jointly revised, amalgamated and redesignated in part as AS/NZS 4761.1:2003.