AS/NZS 4645.1:2008

Title page

Gas distribution networksPart 1: Network management

CONTENTS

SECTION 1 - SCOPE AND GENERAL

1.1 SCOPE

1.2 EXCLUSIONS

1.3 REFERENCED DOCUMENTS

1.4 ROUNDING OF NUMBERS

1.5 NOTATION

1.6 DEFINITIONS

SECTION 2 - NETWORK SAFETY

2.1 BASIS OF SECTION

2.2 GENERAL

2.3 FORMAL SAFETY ASSESSMENT

2.4 SAFETY AND OPERATING PLAN

SECTION 3 - PLANNING

3.1 BASIS OF SECTION

3.2 GENERAL

3.3 FUNCTIONAL REQUIREMENTS

3.4 ONGOING NETWORK PLANNING

SECTION 4 - NETWORK DESIGN

4.1 BASIS OF SECTION

4.2 GENERAL

4.3 DESIGN PROCESS

4.4 CONTROL OF DESIGN AND DEVELOPMENT CHANGES

4.5 MATERIALS AND COMPONENTS

4.6 ROUTE/SITE ASSESSMENT

4.7 NETWORK PRESSURE CONTROL

4.8 MAINS AND SERVICES

4.9 SECTIONAL ISOLATION

4.10 CONSUMER METER AND SERVICE REGULATOR SPECIFICATION

4.11 ASSOCIATED INFRASTRUCTURE

4.12 ADDITIONAL CONSIDERATIONS FOR LP GAS NETWORKS

4.13 DESIGN DOCUMENTATION AND RECORDS

SECTION 5 ᅜ CONSTRUCTION, TESTING AND COMMISSIONING

5.1 BASIS OF SECTION

5.2 GENERAL

5.3 CONSTRUCTION, TESTING AND COMMISSIONING PROCESSES

5.4 INSTALLATION

5.5 TESTING

5.6 COMMISSIONING

SECTION 6 - OPERATIONS

6.1 BASIS OF SECTION

6.2 PRE-OPERATING REQUIREMENTS

6.3 NETWORK PRESSURE MANAGEMENT

6.4 GAS SPECIFICATION AND CHARACTERISTICS

6.5 LEAKAGE MANAGEMENT

6.6 THIRD PARTY ACTIVITIES

SECTION 7 - MAINTENANCE AND REPAIR

7.1 BASIS OF SECTION

7.2 MAINTENANCE PLANNING

7.3 MAINS AND SERVICES

7.4 NETWORK PRESSURE CONTROL EQUIPMENT

7.5 METERS AND SERVICE REGULATORS

7.6 ANCILLARY EQUIPMENT

7.7 VENTING AND FLARING PROCEDURES

SECTION 8 - DECOMMISSIONING

8.1 BASIS OF SECTION

8.2 GENERAL

SECTION 9 - INCIDENT INVESTIGATION AND EMERGENCY RESPONSE PLANNING

9.1 GENERAL

9.2 EMERGENCY RESPONSE PLANNING

9.3 INCIDENTS

SECTION 10 PERFORMANCE MONITORING

10.1 GENERAL

10.2 PERFORMANCE MONITORING PLAN

10.3 AUDITING

10.4 PERFORMANCE REPORTS

APPENDIX A - STEEL GAS DISTRIBUTION NETWORKS GREATER THAN 1050 kPa

APPENDIX B - REFERENCED DOCUMENTS

APPENDIX C - QUALITATIVE RISK ASSESSMENT

APPENDIX D - HAZARD TABLES

APPENDIX E - CLASSIFICATION OF LEAKS

APPENDIX F - CONSUMER SAFETY AWARENESS PROGRAMS

APPENDIX G - MATERIALS, COMPONENTS, AND DESIGN CONDITIONS GUIDELINES

APPENDIX H - DESIGN CONSIDERATIONS FOR NETWORK PRESSURE CONTROLEQUIPMENT

APPENDIX I - PIPE IDENTIFYING, LOCATING AND WARNING SYSTEM ELEMENTS

APPENDIX J - DESIGN CONSIDERATIONS FOR CONTROL OF GAS PRESSURE SERVICEREGULATORS

APPENDIX K - CONSUMER BILLING METERS

APPENDIX L - COMMISSIONING GUIDELINES

APPENDIX M - ANNUALIZED GAS INDUSTRY KEY PERFORMANCE MEASURES—NETWORKS

APPENDIX N - SIGNAGE

APPENDIX O - APPLICATION OF AS/NZS 4645.1 IN NEW ZEALAND