IEC: 439-1 - 1992 (Amendt. No.1 - 1996); Low-voltage switchgear and controlgear assemblies Part 1 - type-tested and partially type-tested assemblies
IEC: 439-1 - 1992 (Amendt. No.1 - 1996); Low-voltage switchgear and controlgear assemblies Part 1 - type-tested and partially type-tested assemblies
- Geneva IEC 1996
- 9p
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