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本帖最后由 移民电工 于 2010-5-22 07:20 编辑 * n# p/ W3 Q% b, D4 v
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Common mistake Question:' ^, ^1 l/ q& v9 l8 f" j
9 y& o. S4 j* B _. L) JWhat would you do? Lets say you are adding a circuit into a sub-panel, and you see no ground bar. The grounds and neutrals of about twenty 12-2s go to the neutral bars and the box remains ungrounded. Your sub-feed is four wire(A,B,N,G) and the last forgetful sparky left that bar that can bond the box to the neutral bar. please vote." j+ \! n/ Z! \, `
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Please read Choices:
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8 E6 W( ^& {# ~* G$ \http://www.ceac.ca/bbs/forum-10-1.html |
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发表于 2010-5-22 05:23
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