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clause 4.7 有提到
) d3 e# k. [4 M) nExamples of methods deemed efficient to prevent a wire from becoming detached are:5 Y- [3 k5 W1 b Z6 t
a) wires are retained by a cord anchorage adjacent to the terminals;* v- X r6 [6 U6 d z: B
b) conductor is clamped by a spring type screwless terminal;
( S( Q8 P8 P# W" e; `c) the wire conductor is anchored to the tag before soldering, unless breakage close to the soldering place is( a0 M1 x) S; I+ b
likely to occur as a result of vibration;& f/ q' F; @) U; o7 x! m. Z
d) wires are twisted together in a reliable manner;: n+ s6 O8 T/ O8 t
e) wires are fastened together by insulation tape, sleeves, or the like;" `" H6 T$ e1 K x) x
f) the wire conductor is inserted into a hole in a printed board, bent and soldered, the hole having a diameter
( o. H3 d1 ~3 t# `0 E( T1 xslightly greater than the conductor;, E2 S$ _8 ~1 O# ?- T! G
g) the wire conductor is securely wrapped around the terminal by means of a special tool (see Figure 19);( _) ^# t9 T& R! d1 o/ U. R0 Z5 P9 @
h) the wire conductor is crimped to the terminal by means of a special tool (see Figure 19).) n2 Y; g, I! {8 ?
The methods under a) to h) apply to internal wiring and the methods under a) and b) to rewireable external flexible
- H+ D- w. P! x+ ?: Gcords. |
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