GOST R 51321.1-2000 Low-voltage switchgear and controlgear assemblies. Part 1. Requirements for type-tested and partially type-tested assemblies. General technical requirements and methods of tests
2007GOST R 51321.1-2007 Low-voltage switchgear and controlgear assemblies. Part 1. Type-tested and partially type-tested assemblies. General technical requirements and test methods
2000GOST R 51321.1-2000 Low-voltage switchgear and controlgear assemblies. Part 1. Requirements for type-tested and partially type-tested assemblies. General technical requirements and methods of tests