NEMA C37.51A
NEMA C3751A 2010-JAN-01 For Swtchgear - Metal-Enclosed Low-Voltage AC Power Crcut Breaker Swtchgear Assembles-Conformance Test Procedures Amendment 1 Short-Tme Wthstand Current Tests
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Foreword
This amendment has been developed to coordinate selected conformance tests and procedures with ANSI/IEEE C37.20.1-2002 Metal-Enclosed Low-Voltage AC Power Circuit Breaker Switchgear, and particularly, to recognize the amendment C37.20.1a-2005. C37.51 is published separately from ANSI/IEEE C37.20.1-2002 and C37.20.1a-2005 to facilitate its use and to permit timely revisions based on experience.