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clause 4.7 有提到
! t9 Z" b6 C' |- s: h: EExamples of methods deemed efficient to prevent a wire from becoming detached are:
! Q0 Q. Z$ C& ^9 u+ I5 V+ T, `- ia) wires are retained by a cord anchorage adjacent to the terminals;9 Z6 X$ x+ C, R6 I- M) Y9 c
b) conductor is clamped by a spring type screwless terminal;
8 Y. g% J# Q9 B5 h" [9 oc) the wire conductor is anchored to the tag before soldering, unless breakage close to the soldering place is
0 ~3 _ }; K, r4 E; r0 `likely to occur as a result of vibration;( L0 ~8 w# O+ p! I6 b$ g* ]) A
d) wires are twisted together in a reliable manner; ]" w6 Z# E4 \: U3 w* ^8 z
e) wires are fastened together by insulation tape, sleeves, or the like;
% Y& t1 X7 ^+ o- B% e, S6 Tf) the wire conductor is inserted into a hole in a printed board, bent and soldered, the hole having a diameter
; S! W8 v- L9 T. O, Jslightly greater than the conductor;
! b; f: H( J, q4 y; O, r0 Mg) the wire conductor is securely wrapped around the terminal by means of a special tool (see Figure 19);6 y' U+ B4 D7 C- y& b$ U$ d: N: z
h) the wire conductor is crimped to the terminal by means of a special tool (see Figure 19)./ l {$ H5 K" f
The methods under a) to h) apply to internal wiring and the methods under a) and b) to rewireable external flexible+ R2 ~2 T; x/ A$ e' E$ f
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发表于 2009-6-2 17:07
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E"才有被要求到勾焊.
发表于 2009-6-6 13:33
