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clause 4.7 有提到
) Z. |/ D( T8 z0 }6 p8 V cExamples of methods deemed efficient to prevent a wire from becoming detached are:' N M6 v8 D6 F$ @+ { V1 f4 O
a) wires are retained by a cord anchorage adjacent to the terminals;8 [. ]: c I( F! D5 v9 S3 R
b) conductor is clamped by a spring type screwless terminal;
+ @$ s1 q. o% ]* \c) the wire conductor is anchored to the tag before soldering, unless breakage close to the soldering place is: ~% Y( {# V, h; N& @
likely to occur as a result of vibration;
/ Z' H$ C+ F0 l7 ]4 M' ]& p A* md) wires are twisted together in a reliable manner;
$ `6 w v; U- P8 J) ^0 z3 y) Re) wires are fastened together by insulation tape, sleeves, or the like;
3 c* d* E: O0 A, u: Y5 nf) the wire conductor is inserted into a hole in a printed board, bent and soldered, the hole having a diameter/ B$ K# ]0 r T: S$ b
slightly greater than the conductor; @. E, @/ U# u. n* ?
g) the wire conductor is securely wrapped around the terminal by means of a special tool (see Figure 19);+ l, D* M) e) w) g0 d
h) the wire conductor is crimped to the terminal by means of a special tool (see Figure 19).
( ?! G! W! e' Y$ a. \The methods under a) to h) apply to internal wiring and the methods under a) and b) to rewireable external flexible
1 T) w) \2 i; }! bcords. |
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