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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? :/ b, s7 Q7 d4 G. h* h1 k5 _
在同一标准中有以下两段文字(摘选):
- `- b; s7 ?: Z! X g' G/ P
4 J9 \5 i7 h- _( e4.7.7 A lead wire intended for the connection of a grounded power-supply conductor shall be:" ]/ i7 \; Q$ b5 i$ i* X& w
a) Identified by white or gray color;0 u7 m' C; F0 J' {: c0 i6 W
b) Marked with the letters, “WHITE,” “WH,” “WHT,” or “COM”, or1 A, w; N7 w; D* U) W
....... , V4 x N# L; l, x8 N- G
注意看其中的差别 "grounded" 和 "grounded"' u) q; a& Q: j% S0 h# |: G! e
- grounded power-supply conductor 指零线
; Q2 E8 D+ W2 R+ _+ G- grounding supply conductor 指地线5 h s% M1 a) W) m7 K# M
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"
8 P8 p9 _1 H9 R. g- ungrounded supply conductor 指火线, 具体标准号记不清了.... |
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