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IEEE C37.20.7

Testing Metal-Enclosed Switchgear Rated Up to 38 kV for Internal Arcing Faults

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Organization: IEEE
Publication Date: 16 April 2008
Status: inactive
Page Count: 2
scope:

This guide establishes a method by which metal-enclosed switchgear, as defined by IEEE Std C37.20.2-1999 and IEEE Std C37.20.3-2001, can be tested for resistance to the effects of arcing due to an internal fault. This guide applies only to equipment utilizing air as the primary insulating medium and rated above 1000 V ac. It applies to both indoor and outdoor equipment; however, special consideration must be given to the building size and construction for indoor applications (not addressed by this guide).

The tests and assessments described in this guide are only applicable to arcing faults occurring entirely in air within the enclosure when all doors and covers are properly secured. This guide does not apply to arcing faults that occur within a component of the switchgear assembly, such as instrument transformers, sealed interrupting devices, fuses, etc.

Switchgear designs that meet the requirements of this guide will be referred to as arc-resistant metal-enclosed interrupter switchgear or arc-resistant metal-clad switchgear as applicable, or, generally, as arc-resistant switchgear.

Document History

March 25, 2021
Testing Switchgear Rated up to 52 kV for Internal Arcing Faults Corrigendum 1
Abstract: A procedure for testing and evaluating the performance of switchgear for internal arcing faults is covered. A method of identifying the capabilities of this equipment is given. Service...
December 6, 2017
Testing Switchgear Rated Up to 52 kV for Internal Arcing Faults
This guide establishes methods by which equipment may be tested for resistance to the effects of arcing due to an internal fault. Equipment types covered in this guide include metal-enclosed...
February 2, 2010
Testing Metal-Enclosed Switchgear Rated up to 38 kV for Internal Arcing Faults Corrigendum 1
This guide establishes a method by which metal-enclosed switchgear, as defined by IEEE Std C37.20.2-1999 and IEEE Std C37.20.3-2001, can be tested for resistance to the effects of arcing due to an...
November 1, 2009
Testing Metal-Enclosed Switchgear Rated Up to 38 kV for Internal Arcing Faults
This guide establishes a method by which metal-enclosed switchgear, as defined by IEEE Std C37.20.2-1999 and IEEE Std C37.20.3-2001, can be tested for resistance to the effects of arcing due to an...
IEEE C37.20.7
April 16, 2008
Testing Metal-Enclosed Switchgear Rated Up to 38 kV for Internal Arcing Faults
This guide establishes a method by which metal-enclosed switchgear, as defined by IEEE Std C37.20.2-1999 and IEEE Std C37.20.3-2001, can be tested for resistance to the effects of arcing due to an...
September 27, 2007
Testing Metal-Enclosed Switchgear Rated Up to 38 kV for Internal Arcing Faults
This guide establishes a method by which metal-enclosed switchgear, as defined by IEEE Std C37.20.2-1999 and IEEE Std C37.20.3-2001, can be tested for resistance to the effects of arcing due to an...
December 7, 2001
Testing Medium-Voltage Metal-Enclosed Switchgear for Internal Arcing Faults
This guide establishes a method by which metal-enclosed switchgear, as defined by IEEE Std C37.20.2-1999 and IEEE Std C37.20.3-2001, can be tested for resistance to the effects of arcing due to an...

References

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