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引用第0楼caballo3157于2007-08-08 07:10发表的 这两段话意思的区别? :
4 W6 k2 @2 a5 C1 I在同一标准中有以下两段文字(摘选):2 E4 Q+ p' N. v8 o1 I1 q6 w
, g9 M m) b: s- Y" d0 Q, `4.7.7 A lead wire intended for the connection of a grounded power-supply conductor shall be:
% J( _& J0 i1 v$ ~/ Ua) Identified by white or gray color;
0 v# v7 m' o" ?: f' x( O; X1 jb) Marked with the letters, “WHITE,” “WH,” “WHT,” or “COM”, or
0 B" Q& m( _3 [* M# y" ~.......
: l7 T% b4 |" K' e6 R注意看其中的差别 "grounded" 和 "grounded"# ]3 @5 L# J! X
- grounded power-supply conductor 指零线! U/ |3 b* h$ E) ]
- grounding supply conductor 指地线1 x# n! ^. s6 f ^
在结合原文看看, 与颜色标示是否对应上了. 在很多标准中还会以下面的描述表示 "火线"/ v, r9 U* C$ n
- ungrounded supply conductor 指火线, 具体标准号记不清了.... |
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