NS253

NS253: Termination of Wiring in Substation Protection and Control Equipment

This standard sets out the minimum requirements for control and protection terminals, lugs and cable termination methods used in substation wiring.

Scope

This standard applies to the termination of substation control and protection stranded wiring with a cross-sectional area of 0.05 mm2 to 16 mm2

• New work.
• Protection and control wiring lugs, terminals, links, fuse holders, and the associated crimping tools to be used.

The following is not included:

• The wiring in equipment supplied to Ausgrid covered by the original equipment manufacturer in which the method of wiring has been approved as part of the procurement contract, e.g. pre-wired switchgear panels and tap-changer control boxes mounted on transformers.
• Metering terminations.
• Terminations to AC Boards.