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clause 4.7 有提到
, n* V0 L9 ]" S0 d" w" r* ]Examples of methods deemed efficient to prevent a wire from becoming detached are:( V; a; f/ ^8 V: z0 \! h
a) wires are retained by a cord anchorage adjacent to the terminals;' R/ N0 [ @1 [1 _
b) conductor is clamped by a spring type screwless terminal;
F; Y) |* P Pc) the wire conductor is anchored to the tag before soldering, unless breakage close to the soldering place is
( G( e$ c3 u. C9 Wlikely to occur as a result of vibration;# ?6 `2 C3 ^7 Z) O$ Z. t% G0 F
d) wires are twisted together in a reliable manner;! o0 `: H4 v2 J! \
e) wires are fastened together by insulation tape, sleeves, or the like;1 x1 v$ f9 n/ y$ o
f) the wire conductor is inserted into a hole in a printed board, bent and soldered, the hole having a diameter
2 A) k9 C% n5 Q0 r6 O) ~7 ]8 Rslightly greater than the conductor;
4 \3 |8 [# ^: S- ug) the wire conductor is securely wrapped around the terminal by means of a special tool (see Figure 19);# s o7 Q* ^" Z. t5 }& P5 F( ?
h) the wire conductor is crimped to the terminal by means of a special tool (see Figure 19).
) H. b6 N i" [" d4 H! }The methods under a) to h) apply to internal wiring and the methods under a) and b) to rewireable external flexible: f+ \- l7 `% S: A& Y
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