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clause 4.7 有提到
# g% a: p4 ]! a" [" g. m( KExamples of methods deemed efficient to prevent a wire from becoming detached are:8 S! m# c8 z2 n! j) [
a) wires are retained by a cord anchorage adjacent to the terminals;
2 x4 E, _8 J- J- |b) conductor is clamped by a spring type screwless terminal;
( G2 ~; ^" ?! Cc) the wire conductor is anchored to the tag before soldering, unless breakage close to the soldering place is
+ ^. Q7 e7 \; X5 R L. G ]& g4 T# slikely to occur as a result of vibration;/ c2 U9 Y7 C( c3 o9 M. t1 A" Z
d) wires are twisted together in a reliable manner;9 Q" ?' J6 l* `& X% [
e) wires are fastened together by insulation tape, sleeves, or the like;
0 \! e+ U7 K- z1 b9 cf) the wire conductor is inserted into a hole in a printed board, bent and soldered, the hole having a diameter
2 B4 X9 l+ r0 y; I8 Pslightly greater than the conductor;
. l) ~7 K3 x8 |! U+ vg) the wire conductor is securely wrapped around the terminal by means of a special tool (see Figure 19);8 ~, y/ O4 y4 c z
h) the wire conductor is crimped to the terminal by means of a special tool (see Figure 19).
" X* P7 J3 Z) z* DThe methods under a) to h) apply to internal wiring and the methods under a) and b) to rewireable external flexible
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