
Composite hollow core station post insulators with a.c. voltage greater than 1 000 V and d.c. voltage greater than 1 500 V Definitions, test methods and acceptance criteria (IEC 62772:2023);
出版:Verband Deutscher Elektrotechniker

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Composite hollow core station post insulators with a.c. voltage greater than 1 000 V and d.c. voltage greater than 1 500 V Definitions, test methods and acceptance criteria (IEC 62772:2023);
出版:Verband Deutscher Elektrotechniker
专家解读视频