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3.2.12 * l' R7 z+ V: B
Leads (tails) used for the connection to extra low voltage d.c. supply, shall be colour coded red# w: M' I' s6 x" J
to indicate its intended connection to the positive termination, and shall be colour coded black
) i* N0 {1 j; K+ A) sto indicate its intended connection to the negative termination. 0 v( w+ t- \2 ^5 t7 u
* u- C0 B8 w! ^ k) j
Fixed terminations, when applied, shall be marked with the "+" sign to indicate the positive connection, and shall be
* o4 y9 o+ E' d2 b9 t; Lmarked with the "–" sign to indicate the negative connection.5 m4 t) ]: t7 M) T; X
' `$ q8 [% z, f! F: H$ g4 x2 A8 u是否是这个意思? |
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