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ANSI C37.50 : 1989

ANSI C37.50 : 1989

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

SWITCHGEAR - LOW VOLTAGE AC POWER CIRCUIT BREAKERS USED IN ENCLOSURES - TEST PROCEDURES

Available format(s)

Hardcopy , PDF

Superseded date

15-04-2023

Language(s)

English

Published date

01-01-1989

Publisher

National Electrical Manufacturers Association

1 SCOPE
2 REFERENCES
3 GENERAL TEST CONDITIONS AND REQUIREMENTS
4 DESIGN TEST REQUIREMENTS
5 ACCESSORY DEVICES
6 TREATMENT OF FAILURES WITHIN TEST SEQUENCES
7 PRODUCTION TESTS
8 PRODUCTION MONITORING AND PRODUCT RETEST REQUIREMENTS

Defines the test procedures for enclosed low-voltage ac power circuit breakers as follows: a) Stationary or drawout circuit breakers of two-or three- or four-pole construction, with one or more rated maximum voltages of 635 V (600 for units incorporating fuses), 508 V, and 254 V for application on systems having nominal voltages of 600, 480, and 240 V; b) Unfused or fused type circuit breakers; c) Manually operated or power-operated circuit breakers with or without electromechanical or solid-state trip devices; d) Fused drawouts consisting of current-limiting fuses in a drawout assembly intended to be connected in series with a low-voltage ac power circuit breaker to form a non-integrally fused circuit breaker.

DocumentType
Standard
Pages
39
PublisherName
National Electrical Manufacturers Association
Status
Superseded
SupersededBy

IEEE 242-2001 IEEE Recommended Practice for Protection and Coordination of Industrial and Commercial Power Systems (IEEE Buff Book)
IEEE DRAFT 1147 : D8 2005 GUIDE FOR THE REHABILITATION OF HYDROELECTRIC POWER PLANTS
IEEE C37.59-2007 IEEE Standard Requirements for Conversion of Power Switchgear Equipment
IEEE C37.17-2012 IEEE Standard for Trip Systems for Low-Voltage (1000 V and below) AC and General Purpose (1500 V and below) DC Power Circuit Breakers
MIL-DTL-17587 Revision C:2007 CIRCUIT BREAKERS, ACB, LOW VOLTAGE, ELECTRIC POWER, AIR, REMOVABLE CONSTRUCTION, GENERAL SPECIFICATION FOR
MIL C 17587 : B CIRCUIT BREAKER, LOW VOLTAGE, ELECTRIC POWER, AIR, OPEN FRAME, REMOVABLE CONSTRUCTION
IEEE 551 : 2006 CALCULATING SHORT-CIRCUIT CURRENTS IN INDUSTRIAL AND COMMERCIAL POWER SYSTEMS
IEEE C37.16-2009 REDLINE IEEE Standard for Preferred Ratings,Related Requirements, and Application Recommendations for Low-Voltage AC (635 V and below)and DC (3200 V and below) Power Circuit Breakers
IEEE C37.13-2015 REDLINE IEEE Standard for Low-Voltage AC Power Circuit Breakers Used in Enclosures
ANSI C37.51 : 1989 SWITCHGEAR - METAL-ENCLOSED LOW-VOLTAGE AC POWER - CIRCUIT BREAKER SWITCHGEAR ASSEMBLIES - CONFORMANCE TEST PROCEDURES
IEEE C37.13.1-2006 IEEE Standard for Definite Purpose Switching Devices for Use in Metal-Enclosed Low-Voltage Power Circuit Breaker Switchgear
IEEE C37.81-1989 IEEE Guide for Seismic Qualification of Class 1E Metal-Enclosed Power Switchgear Assemblies
NEMA PB 2:2011 Deadfront Distribution Switchboards
IEEE C37.27-2008 REDLINE IEEE Application Guide for Low-Voltage AC Power Circuit Breakers Applied with Separately-Mounted Current-Limiting Fuses
IEEE C37.17-2012 TRIP DEVICES FOR AC AND GENERAL PURPOSE DC LOW VOLTAGE POWER CIRCUIT BREAKERS
IEEE C37.20.1-2015 REDLINE IEEE Standard for Metal-Enclosed Low-Voltage (1000 Vac and below, 3200 Vdc and below) Power Circuit Breaker Switchgear
IEEE 3004.5-2014 IEEE Recommended Practice for the Application of Low-Voltage Circuit Breakers in Industrial and Commercial Power Systems

IEEE C37.17-2012 TRIP DEVICES FOR AC AND GENERAL PURPOSE DC LOW VOLTAGE POWER CIRCUIT BREAKERS
UL 248-8:3ED 2011-05 Low-Voltage Fuses - Part 8: Class J Fuses
IEEE 4-2013 IEEE Standard for High-Voltage Testing Techniques
IEEE C37.13-2015 REDLINE IEEE Standard for Low-Voltage AC Power Circuit Breakers Used in Enclosures
IEEE C37.90.2:2004 WITHSTAND CAPABILITY OF RELAY SYSTEMS TO RADIATED ELECTROMAGNETIC INTERFERENCE FROM TRANSCEIVERS
UL 248-10:3ED 2011-05 Low-Voltage Fuses - Part 10: Class L Fuses
IEEE C37.09-1999 IEEE Standard Test Procedure for AC High-Voltage Circuit Breakers Rated on a Symmetrical Current Basis
IEEE C37.90.1-2012 IEEE Standard for Surge Withstand Capability (SWC) Tests for Relays and Relay Systems Associated with Electric Power Apparatus
IEEE C37.16-2009 REDLINE IEEE Standard for Preferred Ratings,Related Requirements, and Application Recommendations for Low-Voltage AC (635 V and below)and DC (3200 V and below) Power Circuit Breakers

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