IEEE C37.20.1-1993 Historical [ Withdrawn ]

16634

IEEE Standard for Metal-Enclosed Low-Voltage Power Circuit Breaker Switchgear

standard by IEEE , 05/05/1994

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Full Description

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 ac LV switchgear, the voltage shall be 1000 V or below; for dc LV switchgear, the voltage shall be 3200 V or below.

Abstract

Revision Standard - Superseded. This IEEE Standards product is part of the C37 family on Switchgear, Substations and Protective Relays. Low-voltage metal-enclosed switchgear, which can contain either stationary or draw out, manually or electrically operated low-voltage ac or dc power circuit breakers in individual grounded metal compartments, in three-pole, two-pole, or single-pole construction is covered. Rated maximum voltage levels can be 254 V, 508 V, or 635 Vac and 300/325 Vm 800V, 1000 V, 1600V, or 3200 Vdc. The continuous current ratings of the main bus in ac designs can be 1600 A, 2000 A, 2500 A, 4000 A, 6000 A, 8000 A, 10 000 A, or 12 000 A. The switchgear can also contain associated control, instruments, metering, protective, and regulating devices as necessary. The standard deals with service conditions, rating, temperature limitations, and classification of insulating materials, insulation (dielectric) withstand voltage requirements, test procedures, and application.
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Document History

  1. IEEE C37.20.1-2015


    IEEE Standard for Metal-Enclosed Low-Voltage (1000 Vac and below, 3200 Vdc and below) Power Circuit Breaker Switchgear

    • Most Recent

  2. IEEE C37.20.1-2002


    IEEE Standard for Metal-Enclosed Low-Voltage Power Circuit Breaker Switchgear

    • Historical Version

  3. IEEE C37.20.1-1993

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    IEEE Standard for Metal-Enclosed Low-Voltage Power Circuit Breaker Switchgear

    • Historical Version

  4. IEEE C37.20.1-1987


    IEEE Standard for Metal-Enclosed Low-Voltage Power Circuit-Breaker Switchgear

    • Historical Version

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Price: $152.00
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Product Details

Published:

05/05/1994

ISBN(s):

9780738110530

Number of Pages:

56

File Size:

1 file , 360 KB

Product Code(s):

STDSU16865

Note:

This product is restricted and cannot be purchased in these countries.