|
3.2.12
. D! b7 a. }! U Leads (tails) used for the connection to extra low voltage d.c. supply, shall be colour coded red
7 A) X- ?/ A, k, ~6 Y; Ito indicate its intended connection to the positive termination, and shall be colour coded black
& T+ ]6 W, r# Q+ lto indicate its intended connection to the negative termination. 9 c$ A& x/ H$ x# R/ b
" C8 n1 w1 ]9 C: p& cFixed terminations, when applied, shall be marked with the "+" sign to indicate the positive connection, and shall be& G, N4 R" T5 e6 \$ n% u
marked with the "–" sign to indicate the negative connection.
# c6 F3 m+ K: T' d2 x$ x0 m
& w/ d4 D& I" Q C) N0 t! v7 I是否是这个意思? |
|