本帖最后由 移民电工 于 2010-5-22 07:20 编辑 - d# b) k; R: p M. G/ V8 T0 F( F8 }$ ?- A4 V
Common mistake Question: 6 b2 m( a7 w* S( m 9 g9 {' m; r" }: p. |! g7 e* zWhat 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. " y5 k8 r3 \8 B9 A " R# z5 A! ]0 L& p( MPlease read Choices:) f+ L% K5 @* W3 g5 n$ @, m$ M- k