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電度表之保護器之啟斷容量問題
Nov 13th 2013, 18:48

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請問電工問題: 電度表額定容量為3 0 安培( 1 ψ 3 W ) 之低壓用戶，其主保護器之最低啟斷容量為⇒ 4000安培  這是依據電工法規嗎? 哪一條? 怎麼算出來的? Thank you....
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