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本帖最后由 移民电工 于 2010-5-22 07:20 编辑 4 r3 P+ p% Y. W1 L, N i: c+ d
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Common mistake Question:* I% E5 [* T' h. C6 H- x
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What 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.1 c7 p3 h9 M4 M1 _6 ~. l, R
' P+ ?: }/ U/ F$ _6 _7 sPlease read Choices:
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