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clause 4.7 有提到
9 f n2 x9 I3 j/ b( \+ eExamples of methods deemed efficient to prevent a wire from becoming detached are:
0 p' [! E" v; la) wires are retained by a cord anchorage adjacent to the terminals;) l- Y/ l0 }3 v: V! f
b) conductor is clamped by a spring type screwless terminal;7 w7 E! }0 N& R8 d
c) the wire conductor is anchored to the tag before soldering, unless breakage close to the soldering place is3 |2 G$ v- K; E0 n4 |. @9 p
likely to occur as a result of vibration;
. I8 R% Z& u' N- qd) wires are twisted together in a reliable manner;! k7 U4 i! _; s8 H" ^* X
e) wires are fastened together by insulation tape, sleeves, or the like;
- @2 E1 Z3 k ^' H: gf) the wire conductor is inserted into a hole in a printed board, bent and soldered, the hole having a diameter5 P- ]" B& _$ { u
slightly greater than the conductor;
) `0 W, r" ]4 M( L! ]. E+ f, ?g) the wire conductor is securely wrapped around the terminal by means of a special tool (see Figure 19);, S/ }0 I) H$ j7 K4 s! Q
h) the wire conductor is crimped to the terminal by means of a special tool (see Figure 19)./ H5 N$ l c. S- \0 B! G
The methods under a) to h) apply to internal wiring and the methods under a) and b) to rewireable external flexible" B+ o, j9 n: h7 t7 ~
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