
Medium power transformers 50 Hz, with highest voltage for equipment not exceeding 36 kV Part 1: General requirements; German version FprEN 50588-1:2014
出版:German Institute for Standardisation (Deutsches Institut für Normung)

專家解讀視頻
Medium power transformers 50 Hz, with highest voltage for equipment not exceeding 36 kV Part 1: General requirements; German version FprEN 50588-1:2014
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻