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3.2.12
0 @- |- K# ?% P s) f0 c Leads (tails) used for the connection to extra low voltage d.c. supply, shall be colour coded red
% b7 O3 x1 [4 t( P- k- Ato indicate its intended connection to the positive termination, and shall be colour coded black
" _0 j$ T- Z" h, q sto indicate its intended connection to the negative termination. / G! ]( a) y7 f# \6 y; C, R$ r" H5 l
: y% }( L( C" Z2 ? w2 |7 qFixed terminations, when applied, shall be marked with the "+" sign to indicate the positive connection, and shall be# Q1 l) m. u5 z( o1 o1 B( o
marked with the "–" sign to indicate the negative connection.
$ X. \$ y: _0 a$ m1 U) N( _. j) l9 P' I# F8 f+ ]. z5 ^ D4 T4 ^1 V
是否是这个意思？ |
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