本帖最后由 移民电工 于 2010-5-22 07:20 编辑 1 a7 k4 j1 d+ ~$ Q! w8 ]- c" ] 9 j- u' h& }0 O5 q* [( A6 UCommon mistake Question:$ o4 V; u! w- z% C0 w
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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. ! r7 W! z% `% U $ h* R8 U# w0 n) l8 N9 IPlease read Choices:: B" ?4 O& s; b
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发表于 2010-5-22 05:23
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