UNLIMITED FREE ACCESS TO THE WORLD'S BEST IDEAS

close
Already an Engineering360 user? Log in.

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

Customize Your Engineering360 Experience

close
Privacy Policy

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

IEEE C37.20.7

Guide for Testing Switchgear Rated Up to 52 kV for Internal Arcing Faults

active, Most Current
Buy Now
Organization: IEEE
Publication Date: 6 December 2017
Status: active
Page Count: 84
scope:

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 switchgear as defined by IEEE Std C37.20.1™, IEEE Std C37.20.2™, IEEE Std C37.20.3™ and IEEE Std C37.20.9™; metal-enclosed bus as defined by IEEE Std C37.23™; medium-voltage ac controllers as defined by UL 347; motor control centers as defined by UL 845; switchboards as defined by UL 891; and metal-enclosed medium-voltage airinsulated circuit breakers for outdoor application defined by IEEE Std C37.04™ (see note). This guide applies only to equipment utilizing air or other insulating gas as the primary insulation medium and rated 52 kV ac or below. It applies to both indoor and outdoor equipment; however, special consideration should be given to the building size and construction for indoor applications (not fully addressed by this document).

The tests and assessments described in this guide are only applicable to arcing faults occurring entirely in air within the enclosure when doors and covers are properly secured in accordance with the rated accessibility type. This guide does not apply to arcing faults that occur within components of the equipment, such as instrument transformers, sealed interrupting devices, fuses, and so on.

Designs that meet the requirements of this guide will be referred to as arc-resistant.

NOTE-These circuit breakers are sometimes referred to as dead-tank circuit breakers.4

4Notes in text, tables, and figures are given for information only and do not contain requirements needed to implement the guide.

Document History

IEEE C37.20.7
December 6, 2017
Guide for 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
Guide for 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
Guide for 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...
April 16, 2008
Errata to IEEE Guide for 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
Guide for 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
Guide for 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

Advertisement