[請問] 工廠用電線的"紅、白、黑"分別是什麼?
想問版上電工
我家工廠的電箱中
從自偶變壓器拉過來三條線
紅 - 白 - 黑
再分別接到其他加工工具機
請問這三條線分別是什麼線? 順序可以改變?
(疑似被天兵用到短路)
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