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clause 4.7 有提到 Q: m9 }5 h4 d) Q; m1 i% V/ S
Examples of methods deemed efficient to prevent a wire from becoming detached are:
1 F4 } _# ~8 t( ^: j+ ua) wires are retained by a cord anchorage adjacent to the terminals;8 g ^* F7 e# J1 a/ }
b) conductor is clamped by a spring type screwless terminal;( t9 I' K6 |2 e7 ^( `& B
c) the wire conductor is anchored to the tag before soldering, unless breakage close to the soldering place is
* ?" i" ]0 R, L; ]8 G3 jlikely to occur as a result of vibration;) k4 S) {0 a6 O* c' A/ x! s; s3 O
d) wires are twisted together in a reliable manner;
# ~3 k& u& j0 ?" E! E- ?# @e) wires are fastened together by insulation tape, sleeves, or the like;( b+ ]; L( h+ z
f) the wire conductor is inserted into a hole in a printed board, bent and soldered, the hole having a diameter9 b, Y9 o M7 l3 B' w+ \; l% q" r
slightly greater than the conductor;
" }- J6 F3 V; P" u( _g) the wire conductor is securely wrapped around the terminal by means of a special tool (see Figure 19);0 m2 [2 ?7 ~( Z) P: [
h) the wire conductor is crimped to the terminal by means of a special tool (see Figure 19).# e) f2 u( u& L# l+ R9 X0 z
The methods under a) to h) apply to internal wiring and the methods under a) and b) to rewireable external flexible. W7 t# X( P0 m+ B1 j" m
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