|
|
clause 4.7 有提到 : a) F7 s! `4 j' {, W8 k
Examples of methods deemed efficient to prevent a wire from becoming detached are:
+ u/ U, O$ s7 q) H6 @2 ?0 t% ca) wires are retained by a cord anchorage adjacent to the terminals;! c3 }& G8 T" t4 E
b) conductor is clamped by a spring type screwless terminal;
M s3 h R8 S1 @8 a- ac) the wire conductor is anchored to the tag before soldering, unless breakage close to the soldering place is
9 s, W+ J5 \6 X- c7 W: E$ ylikely to occur as a result of vibration;( M$ I2 B5 @. ~( L+ ^* N
d) wires are twisted together in a reliable manner;
" p/ D F. N( {8 z7 de) wires are fastened together by insulation tape, sleeves, or the like;7 g% F. a/ m- p+ O9 ]
f) the wire conductor is inserted into a hole in a printed board, bent and soldered, the hole having a diameter
4 W) e+ n1 D" Bslightly greater than the conductor;6 [. s/ f- U5 Z& P4 o
g) the wire conductor is securely wrapped around the terminal by means of a special tool (see Figure 19);. _2 L* R P; ~& N. b! {
h) the wire conductor is crimped to the terminal by means of a special tool (see Figure 19).
( u7 }* v/ V+ v! f& F: c; i. X" l# WThe methods under a) to h) apply to internal wiring and the methods under a) and b) to rewireable external flexible% q; U0 l- O9 M
cords. |
|