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clause 4.7 有提到
2 u( {1 B+ z- Q8 m7 rExamples of methods deemed efficient to prevent a wire from becoming detached are:0 g t+ U9 H' v1 O7 L' p! U/ Y
a) wires are retained by a cord anchorage adjacent to the terminals;# x$ x4 O. F. s, m) A# u, t
b) conductor is clamped by a spring type screwless terminal;3 Q& U( Q% W( \# j/ F, N
c) the wire conductor is anchored to the tag before soldering, unless breakage close to the soldering place is
7 d/ s8 c( j! ~" E1 clikely to occur as a result of vibration;
, g5 p+ u' i1 P( u: vd) wires are twisted together in a reliable manner;% G5 \7 X! y# e9 o0 O, r
e) wires are fastened together by insulation tape, sleeves, or the like;. w0 R" v0 R3 i4 t
f) the wire conductor is inserted into a hole in a printed board, bent and soldered, the hole having a diameter. }" F6 l- t0 ~
slightly greater than the conductor;6 Z% j" h- Z- s; Z4 e
g) the wire conductor is securely wrapped around the terminal by means of a special tool (see Figure 19);) s/ N. ?! f% k% j6 t9 d
h) the wire conductor is crimped to the terminal by means of a special tool (see Figure 19).1 i/ R) }' v c8 k: L& s
The methods under a) to h) apply to internal wiring and the methods under a) and b) to rewireable external flexible
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