
BS EN 50464-1 AMD1. Three-phase oil-immersed distribution transformers 50 Hz, from 50 kVA to 2 500 kVA with highest voltage for equipment not exceeding 36 kV. Part 1. General requirements
出版:British Standards Institution

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BS EN 50464-1 AMD1. Three-phase oil-immersed distribution transformers 50 Hz, from 50 kVA to 2 500 kVA with highest voltage for equipment not exceeding 36 kV. Part 1. General requirements
出版:British Standards Institution
专家解读视频