Specification for igh-Voltage Metal-Clad / Metal-Enclosed Switchgear

This specification defines the requirements for the design, manufacture and works testing of indoor assemblies of high-voltage metal-clad, metal-enclosed switchgear operated at voltages up to and including 35kV and intended for use on the PROJECT-NAME projects (hereafter referred to as ‘the Project’).

2.1 General
The electrical equipment and installation shall conform in design, materials and performance, except where otherwise specified, with the current issue and amendments of the Codes and Standards specified by the International
Electrotechnical Commission (IEC).

All conflicts between the requirements of this specification and other relevant documents shall be referred to the Buyer for resolution.

2.2 International Electrotechnical Commission (IEC) Standards

IEC 60044 Instrument transformers
IEC 60051 Direct acting indicating analogue electrical measuring instruments and their accessories
IEC 60056 High-voltage alternating current circuit breakers
IEC 60073 Colours of indicator lights and pushbuttons
IEC 60129 Alternating current disconnectors and earthing switches
IEC 60186 Voltage transformers
IEC 60255 Electrical relays
IEC 60258 Direct acting recording electrical measuring instruments and their accessories
IEC 60265 High-voltage switches
IEC 60269 Low-voltage fuses
IEC 60282 High-voltage fuses
IEC 60298 Alternating current metal-enclosed switchgear and controlgear assemblies for rated voltages above 1kV up to and including 52kV
IEC 60337 Control switches (low-voltage switching devices for control and auxiliary circuits, including contactor relays)
IEC 60420 High-voltage alternating current switch-fuse combinations
IEC 60445 Identification of equipment terminals and of terminations of certain designated conductors. Including general rules for an alphanumeric system