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clause 4.7 有提到
- J' b3 t5 V- Y+ k$ B6 f1 F. rExamples of methods deemed efficient to prevent a wire from becoming detached are:
1 ~0 d+ m; E; G& X2 ^a) wires are retained by a cord anchorage adjacent to the terminals;" A, I- K7 S0 z- ^
b) conductor is clamped by a spring type screwless terminal;
1 p. J# g" P9 n. }* Ec) the wire conductor is anchored to the tag before soldering, unless breakage close to the soldering place is0 _" E6 E2 O% K, F# K$ X
likely to occur as a result of vibration;
* H3 l8 {# R/ ed) wires are twisted together in a reliable manner;
+ `0 B" D6 N/ re) wires are fastened together by insulation tape, sleeves, or the like;
* S- f7 o7 b+ ?" }) f2 L" Xf) the wire conductor is inserted into a hole in a printed board, bent and soldered, the hole having a diameter
8 @- S! G! B: F6 Z5 Nslightly greater than the conductor;
& f. s) p7 w( q4 b0 q* I! _! yg) the wire conductor is securely wrapped around the terminal by means of a special tool (see Figure 19);
" f2 D' f7 ~" |6 I) t9 xh) the wire conductor is crimped to the terminal by means of a special tool (see Figure 19).* S4 Q G: c5 @4 O
The methods under a) to h) apply to internal wiring and the methods under a) and b) to rewireable external flexible8 y+ E* |' D# c8 M# t L
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