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NEMA - SG 4

ALTERNATING-CURRENT HIGH- VOLTAGE CIRCUIT BREAKERS; REVISION 1 - NOVEMBER 1977, EDITORIAL CORRECTION TO REVISION 1 - DECEMBER 1977 (WITHDRAWN)

inactive
Organization: NEMA
Publication Date: 1 January 1975
Status: inactive
Page Count: 66

Document History

NEMA SG 4
January 1, 2009
Alternating Current High-Voltage Circuit Breakers
This standards publication encompasses: a. All ratings for outdoor circuit breakers above 1000 volts for alternating-current service. Circuit breakers for service in metal-enclosed or metal-clad...
SG 4
January 1, 2009
Alternating-Current High-Voltage Circuit Breakers
This standards publication encompasses: a. All ratings for outdoor circuit breakers above 1000 volts for alternating-current service. (Automatic circuit reclosers are excluded.) Circuit breakers for...
NEMA SG 4
January 1, 2000
Alternating-Current High-Voltage Circuit Breakers
This standards publication encompasses: a. All ratings for outdoor circuit breakers above 1000 volts for alternating-current service. (Automatic circuit reclosers are excluded.) Circuit breakers for...
NEMA SG 4
January 1, 2000
Alternating-Current High-Voltage Circuit Breakers
This standards publication encompasses: a. All ratings for outdoor circuit breakers above 1000 volts for alternating-current service. (Automatic circuit reclosers are excluded.) Circuit breakers for...
SG 4
January 1, 1990
Alternating-Current High-Voltage Circuit Breakers
A description is not available for this item.
SG 4
January 1, 1975
ALTERNATING-CURRENT HIGH- VOLTAGE CIRCUIT BREAKERS; REVISION 1 - NOVEMBER 1977, EDITORIAL CORRECTION TO REVISION 1 - DECEMBER 1977 (WITHDRAWN)
A description is not available for this item.
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References

This document references:
F855 - Standard Specifications for Temporary Protective Grounds to Be Used on De-energized Electric Power Lines and Equipment
February 1, 2023
These specifications cover the equipment making up the temporary grounding system used on de-energized electric power lines, electric supply stations, and equipment. It is common practice for the...
This document references:
NEMA 107 - Methods of Measurement of Radio Influence Voltage (RIV) of High-Voltage Apparatus
Published by NEMA on January 1, 2016
This standard covers the methods of measurement of radio influence voltage in the frequency range of 0.015 to 30 megahertz that may be associated with high-voltage power apparatus used on...
This document references:
IEEE C57.13 - Requirements for Instrument Transformers
Published by IEEE on January 29, 2016
This standard is intended for use as a basis for performance and interchangeability of equipment covered, and to assist in the proper selection of such equipment. Safety precautions are also...
This document references:
IEEE C37.09 - Test Procedures for AC High-Voltage Circuit Breakers with Rated Maximum Voltage Above 1000 V
Published by IEEE on December 5, 2018
This standard applies to ac high-voltage circuit breakers with rated maximum voltage above 1000 V. It defines various tests that are made on ac high-voltage circuit breakers, except for generator...
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