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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
- h7 d- C. F0 I1 k4 _/ n5 i没有说线颜色吧 $ h( Q* J: p6 e' m4 v
60598-1 cl.3.2.12
6 b; E+ a8 C8 i) g h- E; X; lLeads (tails) used for the connection to extra low voltage d.c. supply, shall be colour coded red" H: D9 L( v( I4 ]$ M- n
to indicate its intended connection to the positive termination, and shall be colour coded black
! \9 C% F5 _7 B* Uto indicate its intended connection to the negative termination. Fixed terminations, when
" f8 {& X: ^/ o* Z$ Happlied, shall be marked with the "+" sign to indicate the positive connection, and shall be
- s# w. w4 y/ f* _% E8 |marked with the "–" sign to indicate the negative connection.
! x6 Q A5 T3 m2 k8 b2 b+ P: U2 |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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