NEMA C37.54-1996 Conformance Test Procedures for Indoor Alternating Current Medium-Voltage Circuit Breakers Applied as Removable Elements in Metal-Enclosed Switchgear
2002NEMA C37.54-2002 For Indoor Alternating Current High-Voltage Circuit Breakers Applied as Removable Elements in Metal-Enclosed Switchgear- Conformance Test Procedures
1996NEMA C37.54-1996 Conformance Test Procedures for Indoor Alternating Current Medium-Voltage Circuit Breakers Applied as Removable Elements in Metal-Enclosed Switchgear