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ANSI C37.55-2020
Medium-Voltage Metal-Clad Switchgear Assemblies - Conformance Test Procedures
Applies to all medium voltage metal-clad switchgear assemblies designed, tested and manufactured in accordance with IEEE C37.20.2. Covers selected tests to demonstrate conformance with Section 6 of IEEE C37.20.2.
NEMA: National Electrical Manufacturers Association [nema]