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IEEE C37.20.1

Metal-Enclosed Low-Voltage Power Circuit Breaker Switchgear Amendment 1: Short-Time and Short- Circuit Withstand Current Tests— Minimum Areas for Multiple Cable Connections

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Organization: IEEE
Publication Date: 22 September 2005
Status: inactive
Page Count: 14
scope:

This standard covers metal-enclosed low-voltage power circuit breaker switchgear assemblies containing, but not limited to, such devices as low-voltage power circuit breakers (fused or unfused); other interrupting devices; switches, control, instrumentation, and metering; and protective and regulating equipment.

This standard is concerned with enclosed, rather than open, indoor and outdoor switchgear assemblies. It includes types of equipment that are part of secondary unit substations. It does not apply to equipment covered by industrial control standards, communication switchboards, communication switching equipment, switchboards for use on board ships, or dead-front distribution switchboards.

In this standard, metal-enclosed low-voltage power circuit breaker switchgear shall be called LV switchgear. For LV ac switchgear, the voltage shall be 1000V or below; for LV dc switchgear, the voltage shall be 3200V or below.

Document History

March 5, 2020
Metal-Enclosed Low-Voltage (1000 Vac and below, 3200 Vdc and below) Power Circuit Breaker Switchgear Amendment 1: Control and Secondary Circuits and Devices, and All Wiring
Abstract: The requirements for control, secondary, and logic-level wiring are addressed in this amendment. It covers wire type, ampacity, and methods for protecting wiring across a hinge.
March 26, 2015
Metal-Enclosed Low-Voltage (1000 Vac and below, 3200 Vdc and below) Power Circuit Breaker Switchgear
This standard covers metal-enclosed low-voltage power circuit breaker switchgear assemblies containing, but not limited to, such devices as low-voltage power circuit breakers (fused or unfused);...
December 6, 2006
Metal-Enclosed Low-Voltage Power Circuit Breaker Switchgear Amendment 2: Additional Requirements for Control and Auxiliary Power Wiring in DC Traction Power Switchgear
This standard covers metal-enclosed low-voltage power circuit breaker switchgear assemblies containing, but not limited to, such devices as low-voltage power circuit breakers (fused or unfused);...
December 6, 2006
Metal-Enclosed Low-Voltage Power Circuit Breaker Switchgear
Abstract: This amendment addresses additional requirements of auxiliary power wiring and control wiring within dc switchgear of traction power substations with rated maximum voltage up to 3200 volts...
September 22, 2005
Metal-Enclosed Low-Voltage Power Circuit Breaker Switchgear
This standard covers metal-enclosed low-voltage power circuit breaker switchgear assemblies containing, but not limited to, such devices as low-voltage power circuit breakers (fused or unfused);...
IEEE C37.20.1
September 22, 2005
Metal-Enclosed Low-Voltage Power Circuit Breaker Switchgear Amendment 1: Short-Time and Short- Circuit Withstand Current Tests— Minimum Areas for Multiple Cable Connections
This standard covers metal-enclosed low-voltage power circuit breaker switchgear assemblies containing, but not limited to, such devices as low-voltage power circuit breakers (fused or unfused);...
March 1, 2005
Metal-Enclosed Low-Voltage Power Circuit Breaker Switchgear
This standard covers metal-enclosed low-voltage power circuit breaker switchgear assemblies containing, but not limited to, such devices as low-voltage power circuit breakers (fused or unfused);...
March 1, 2005
Metal-Enclosed Low-Voltage Power Circuit Breaker Switchgear
A description is not available for this item.
June 13, 2002
Metal-Enclosed Low-Voltage Power Circuit Breaker Switchgear
This standard covers metal-enclosed low-voltage power circuit breaker switchgear assemblies containing, but not limited to, such devices as low-voltage power circuit breakers (fused or unfused);...
January 1, 1993
Metal-Enclosed Low-Voltage Power Circuit Breaker Switchgear
This standard covers metal-enclosed low-voltage power circuit breaker switchgear assemblies containing, but not limited to, such devices as low-voltage power circuit breakers (fused or unfused);...
June 29, 1987
Metal-Enclosed Low-Voltage Power Circuit-Breaker Switchgear
A description is not available for this item.

References

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