This standard covers metal-enclosed interrupter (MEI) switchgear assemblies containing@ but not limited to@ such devices as interrupter switches; selector switches; power fuses; control@ instrumentation and metering devices; and protective equipment. It includes@ but is not specifically limited to@ equipment for the control and protection of apparatus used for distribution of electrical power.This standard is concerned with enclosed (rather than open)@ indoor and outdoor switchgear assemblies rated above 1000 V. It includes equipment that is part of primary and secondary unit substations. It does not include gas-insulated substation equipment nor switching devices mounted integrally within a transformer enclosure.
C37.20.3-2001由IEEE - The Institute of Electrical and Electronics Engineers@ Inc. 发布于 2001-03-17,并于 2008-05-21 实施。
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