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发表于 2016-4-27 09:24
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Nezof 发表于 2016-4-26 17:36 / W0 |, c4 R7 J+ Z; R
没有说线颜色吧 . l; W6 m2 O. g6 N7 z% g7 U
60598-1 cl.3.2.12, ]7 O* o4 `% c/ @( z
Leads (tails) used for the connection to extra low voltage d.c. supply, shall be colour coded red' h7 ?: K! i6 O/ A& x! G- G
to indicate its intended connection to the positive termination, and shall be colour coded black; }( x. I u" q4 Y |2 A7 }
to indicate its intended connection to the negative termination. Fixed terminations, when
+ H$ l A2 Q+ J: @/ }6 Vapplied, shall be marked with the "+" sign to indicate the positive connection, and shall be' T v# ?2 R" S* P/ T6 U' B4 `
marked with the "–" sign to indicate the negative connection.! {+ `# s, `) g H
第一次遇到这种情况,除了ul线,其他标准线没有红黑线 |
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