3rd Edition, January 1, 2003
For Switchgear - Metal-Enclosed Low-Voltage AC Power Circuit Breaker Switchgear Assemblies-Conformance Test Procedures
Includes all amendments and changes through Reaffirmation Notice , 2010
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3rd Edition, 2010
FOR SWITCHGEAR - METAL-ENCLOSED INTERRUPTER SWITCHGEAR ASSEMBLIES - CONFORMANCE TESTING
LOW-VOLTAGE POWER CIRCUIT BREAKERS AND AC POWER CIRCUIT PROTECTORS- PREFERRED RATINGS, RELATED REQUIREMENTS, AND APPLICATION RECOMMENDATIONS
99th Edition, December 9, 2010
TEST PROCEDURE FOR AC HIGH-VOLTAGE CIRCUIT BREAKERS RATED ON A SYMMETRICAL CURRENT BASIS
Description / Abstract:
This Standard is a conformance testing standard optionally
applicable to all metal-enclosed low-voltage ac power circuit
breaker switchgear assemblies designed, tested, and manufactured in
accordance with ANSI/IEEE C37.20.1-2002, Metal-Enclosed Low-Voltage
AC Power Circuit Breaker Switchgear. This standard covers selected
tests to demonstrate conformance of the basic switchgear section
(which includes the structure, circuit breaker compartments,
instrument compartments, buses, and internal connections) with
Section 6, Tests, of ANSI/IEEE C37.20.1-2002. See ANSI/IEEE
C37.20.1-2002 for assigned ratings and usual service