本帖最后由 移民电工 于 2010-5-22 07:20 编辑 ( q6 H3 |4 s& o5 _: X1 C5 g
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Common mistake Question:3 f a* j a& V9 o3 |2 P2 n
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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. " f/ ^$ \7 q6 a5 r, | % M1 @8 o" o$ E3 ZPlease read Choices: 9 T0 H2 C. X9 A8 s% B0 a. Z : |! p8 X* f" l* n. M7 e8 x" O/ x% Jhttp://www.ceac.ca/bbs/forum-10-1.html
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发表于 2010-5-22 05:23
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