scope:

This standard provides requirements for the selection, installation, inspection and maintenance of electrical equipment connected to gas meter installations by:

• Ensuring electrical equipment will not be a source of ignition.

• Ensuring compliance with DSEAR and ATEX directives.

• Describing suitable electrical equipment.

• Describing how to safely connect electrical equipment. This standard applies to the connection of any electrical equipment to a gas meter. It applies to meter installations of maximum operating pressure not exceeding 100 bar containing Natural Gas in a gaseous state. It applies to primary and secondary meter installations and associated volume conversion equipment in industrial, commercial and domestic premises. It considers:

• DSEAR and ATEX Directives.

•Competency.

• Pulse ownership.

• Equipment certification and suitability

• Equipment connections

•Details of electrical connections

• Labelling

• Records and reporting Advice is provided on:

• Legal requirements

• Authorisation procedures

• Electrical low frequency and high frequency outputs.

• Design of electronic interface equipment.

• Ensuring integrity of installation, operation and maintenance of a pulse chain.

• Procedures for telephone connections

• Equipment location and installation.

• Equipment connection, protection and isolation.

• Earthing.

• Inspection and maintenance