
High-voltage switchgear and controlgear - Part 200: AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV
出版:Standardiserings-Kommissionen I Sverige

专家解读视频
High-voltage switchgear and controlgear - Part 200: AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV
出版:Standardiserings-Kommissionen I Sverige
专家解读视频