IEEE C37.20.3-2013 PDF Download

IEEE C37.20.3-2013 is a standard that specifies the requirements for metal-enclosed interrupter (MEI) switchgear assemblies. These switchgear assemblies contain various devices such as interrupter switches, selector switches, power fuses, circuit breakers, control, instrumentation, and metering devices, as well as protective equipment.

The scope of this standard covers MEI switchgear assemblies used for the control and protection of electrical power distribution apparatus. It applies to enclosed switchgear assemblies, both indoor and outdoor, rated above 1 kV. This standard also includes equipment used in primary and secondary unit substations but does not cover gas-insulated substation equipment or switching devices integrated within transformer enclosures.

The purpose of this standard is to provide guidelines and requirements for the design, production, and testing of MEI switchgear. It defines service conditions, ratings, preferred ratings, and construction requirements. Additionally, it provides guidance for the application, handling, storage, and installation of MEI switchgear.