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clause 4.7 有提到 4 ^0 P+ T+ x( P0 x
Examples of methods deemed efficient to prevent a wire from becoming detached are:
+ l6 I$ r1 @# U( @a) wires are retained by a cord anchorage adjacent to the terminals;5 V0 l. o5 E) m; {6 a5 M7 P8 r
b) conductor is clamped by a spring type screwless terminal;
9 f2 o$ q6 h0 p. |c) the wire conductor is anchored to the tag before soldering, unless breakage close to the soldering place is4 Y/ t/ s6 z' L( a. n* L6 B
likely to occur as a result of vibration;1 \1 K& ^6 ]0 C) k( E6 V
d) wires are twisted together in a reliable manner;# l4 o$ ~; J' _2 l5 I) [
e) wires are fastened together by insulation tape, sleeves, or the like;
% Q; D* R! ~. B" Yf) the wire conductor is inserted into a hole in a printed board, bent and soldered, the hole having a diameter
- t$ m- M# H5 d1 U9 Dslightly greater than the conductor;
4 H/ l* H% [1 L* Zg) the wire conductor is securely wrapped around the terminal by means of a special tool (see Figure 19);
5 ?* p- O- K# u6 W$ vh) the wire conductor is crimped to the terminal by means of a special tool (see Figure 19).) {; x5 F* f8 e; x$ n
The methods under a) to h) apply to internal wiring and the methods under a) and b) to rewireable external flexible
3 X3 j2 R+ e8 R8 }5 dcords. |
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