NEMA - ANSI C37.51A
For Switchgear - Metal-Enclosed Low-Voltage AC Power Circuit Breaker Switchgear Assemblies-Conformance Test Procedures Amendment 1: Short-Time Withstand Current Tests
|Publication Date:||1 January 2010|
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.