• NEMA SG 3 : 1995

    Withdrawn A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

    LOW-VOLTAGE POWER CIRCUIT BREAKERS

    Available format(s): 

    Withdrawn date:  12-04-2000

    Language(s): 

    Published date:  12-01-2013

    Publisher:  National Electrical Manufacturers Association

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    Table of Contents - (Show below) - (Hide below)

    1 Referenced standards
         Referenced standards
    2 Metal-enclosed low-voltage power circuit breaker
       switchgear
         Exceptions to American National Standard
         C37.20.1-1987
    3 Metal-clad and station-type cubicle switchgear
         Exceptions to American National Standard
         C37.20.2-1987
    4 Metal-enclosed interrupter switchgear
         Exceptions to American National Standard
         C37.20.3-1987
    5 Control switchboards
         Exceptions to American National Standard
         C37.21-1988
    6 Metal-enclosed bus and calculating losses in
       isolated-phase bus
         Exceptions to American National Standard
         C37.23-1987
    7 Guide for evaluating the effects of solar radiation
       on outdoor metal-enclosed switchgear
         Exceptions to American National Standard
         C37.24-1988
    8 Conformance testing of metal-enclosed low-voltage AC
       power circuit breaker switchgear assemblies
         Exceptions to American National Standard
         C37.51-1988
    9 Definitions for power switchgear
         Exceptions to American National Standard
         C37.100-1981

    Abstract - (Show below) - (Hide below)

    Covers assembling equipment for control and protection of apparatus used for power generation, conversion, transmission, and distribution; metal enclosed power bus and connections; control switchboards; renewal and spare parts designed for switchgear assemblies. Includes the following sections: metal enclosed low voltage power circuit breaker switchgear; metal clad and station type cubicle switchgear; metal enclosed bus and calculating losses in isolated phase bus; definitions for power switchgear; guide for evaluating the effects of solar radiation on outdoor metal enclosed switchgear.

    General Product Information - (Show below) - (Hide below)

    Document Type Standard
    Publisher National Electrical Manufacturers Association
    Status Withdrawn

    Standards Referencing This Book - (Show below) - (Hide below)

    IEEE C37.20.1:2015 METAL-ENCLOSED LOW-VOLTAGE (1000 VAC AND BELOW, 3200 VDC AND BELOW) POWER CIRCUIT BREAKER SWITCHGEAR
    ANSI C37.51 : 1989 SWITCHGEAR - METAL-ENCLOSED LOW-VOLTAGE AC POWER - CIRCUIT BREAKER SWITCHGEAR ASSEMBLIES - CONFORMANCE TEST PROCEDURES
    IEEE C37.20.2-2015 REDLINE IEEE Standard for Metal-Clad Switchgear
    IEEE C37.20.3 : 2013 METAL-ENCLOSED INTERRUPTER SWITCHGEAR (1 KV-38 KV)
    IEEE C37.24 : 2003 EVALUATING THE EFFECT OF SOLAR RADIATION ON OUTDOOR METAL-ENCLOSED SWITCHGEAR
    IEEE C37.21-2005 CONTROL SWITCHBOARDS
    IEEE C37.23-2003 METAL-ENCLOSED BUS
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