AS 4645:2005

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Gas distribution network management

Published By	Publication Date	Number of Pages
AS	2005-02-21	53

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Categories: 75.200 - Petroleum products and natural gas handling equipment, 91.140.40 - Gas supply systems, AS

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Description

Specifies the requirements for safe management of a fuel gas distribution network throughout the life cycle of all elements of that network. The requirements apply to the life cycle of new assets in new or existing systems, but the Sections on operations, maintenance, repair and decommissioning are suitable for application to existing assets in existing systems.

Scope

This Standard specifies requirements for safe management of a fuel gas distribution network throughout the life cycle of all elements of that network.
Appendix A describes life-cycle phases.
The requirements apply to the life cycle of new assets in new or existing systems, but the Sections on operations, maintenance, repair and decommissioning are suitable for application to existing assets in existing systems.
Gas distribution networks within the scope of this Standard comprise of all facilities between the outlets of all city gate supply points or equivalent (being wherever pressure is reduced to below 1050 kPa), or for an LP Gas network the point of entry to the network operator’s facility, and the outlet of the consumer’s meter assemblies, as detailed in Figure 1.2.
Detailed requirements for design and materials, construction, testing and commissioning of steel and plastic mains and services within a network, are specified by reference to—
AS 1697 for steel mains and services; and
AS 3723 for plastic mains and services.
Details for design and maintenance of gas control plant and equipment associated with the distribution network are specified by reference to—
AS 4041 for design of above ground steel pipework and facilities; and
AS 3873 for maintenance of above ground facilities.

Some requirements of this Standard are suitable for consumer piping operating at >200 kPa, being not otherwise provided in AS 5601. The operator of such piping should decide which requirements are appropriate, and should obtain any necessary agreement from the regulator having jurisdiction over the operation of that piping.
The relevant technical regulator may regard this Standard as appropriate for other than fuel gas.
AG 606 (to be AS 4568) provides guidance for preparation of a Safety and Operating Plan for gas networks.

Additional information

Published Code	AS
Published By	Australia Standards
Publication Date	2005-02-21
Pages Count	53
Language	English
Edition	1
File Size	471.0 KB
ISBN	0733764657
ICS Codes	75.200 - Petroleum products and natural gas handling equipment 91.140.40 - Gas supply systems

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AS 4645:2005

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