NG TS 2.02 PDF

PURPOSE AND SCOPE

This document defines the technical requirements for switchgear connected to the National Grid Electricity Transmission System at 400kV, 275kV, 132kV and 13kV (tertiary). The principles of this document also apply to equipment connected at other voltages.

This Specification applies to all switchgear for use on, and for connection to, the National Grid 66kV, 132kV, 275kV, 400 kV and 13kV tertiary connected 50 Hz systems. It specifies the requirements for items of switchgear but does not cover application, protection and automatic switching requirements; neither does it cover fixed ancillary installations where they have no direct bearing on the service operation of the switchgear specified. These aspects are covered in companion Technical Specifications.