本帖最后由 移民电工 于 2010-5-22 07:20 编辑 : U) x4 y' j/ w2 [0 d # l& ]6 m) I7 j2 qCommon mistake Question:, M+ p4 ^; z) w1 F* K
% F8 O% K) O& i8 F0 O& mWhat 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. 5 g1 i* n4 t; H& D4 H/ m8 l5 ]% a/ K5 V1 p& x" ]+ W8 F( H1 ?6 j$ q; ]
Please read Choices: 4 t/ v/ u3 I$ ]3 H& J" P$ |) Y9 H9 v3 G0 B4 q: @$ b http://www.ceac.ca/bbs/forum-10-1.html