IEEE C37.20.4-2001 - IEEE Standard for Indoor AC Switches (1 kV - 38 kV) for Use in Metal-Enclosed Switchgear

Standard

Superseded

Standard Details

Indoor ac medium-voltage switches for use in enclosures for application in power circuits at voltages above 1 kV through 38 kV are covered. These include stationary or drawout, manual or power operation, fused or unfused.

Sponsor Committee	PE/SWG - Switchgear
Status	Superseded
Superseded by	C37.20.4-2013
Board Approval	2001-03-17
History	Published Date:2001-08-10 Reaffirmed:2006-11-16

Additional Resources Details

PAR	Approved PAR
Historical Base Standard	C37_20_4-1996

Working Group Details

Working Group	SA - Switchgear Assemblies Subcommittee
Working Group Chair	T Olsen
Sponsor Committee	PE/SWG - Switchgear
Society	PE - IEEE Power and Energy Society
IEEE Program Manager	Erin Spiewak
Existing Standards	Superseded C37.20.6-1997 - IEEE Standard for 4.76 kV to 38 kV Rated Grounding and Testing Devices Used in Enclosures Drawout type grounding and testing (G&T) devices for use in medium-voltage metal-clad switchgear rated above 4.76 kV through 38 kV are covered. The description, design, and testing of these accessory devices that are inserted in place of drawout circuit breakers for the purpose of grounding and testing are also covered.
	Superseded C37.20.7-2001 - IEEE Guide for Testing Medium-Voltage Metal-Enclosed Switchgear for Internal Arcing Faults Superseded by IEEE Std C37.20.7-2007. A procedure for testing and evaluating the performance of metal-enclosed switchgear for internal arcing faults is covered. A method of identifying the capabilities of this equipment is given. Service conditions, installation, and application of equipment are also discussed.