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3.2.12 - l8 I( D# i7 Q A5 `. h1 F+ y
Leads (tails) used for the connection to extra low voltage d.c. supply, shall be colour coded red' I$ X% i& H& k3 e, c8 N9 L
to indicate its intended connection to the positive termination, and shall be colour coded black
9 p/ Y. s$ L. l( V! zto indicate its intended connection to the negative termination. ' b9 }+ B# Y4 L
* V: j5 G9 w, y8 S4 tFixed terminations, when applied, shall be marked with the "+" sign to indicate the positive connection, and shall be% t4 Y" m9 o ?3 y. h. u+ T3 X
marked with the "–" sign to indicate the negative connection.
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+ w' ^0 E3 o; `! Q, V5 m是否是这个意思? |
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