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如果套管厚度没有1.0 mm厚,能满足23.3 ??' U, {! J1 ^. Q6 a
23.3 Different parts of an appliance that can move relative to each other in normal use or& r$ I2 [. n3 u1 b- Y$ _; I
during user maintenance shall not cause undue stress to electrical connections and internal5 j7 @) F" h ?
conductors, including those providing earthing continuity. Flexible metallic tubes shall not
4 v1 f0 G8 T8 _; Z# @cause damage to the insulation of the conductors contained within them. Open-coil springs$ @# p" ^5 F; y# M) J4 S; K( j: u
shall not be used to protect the wiring. If a coiled spring, the turns of which touch one another,( W. Z* J# I9 q# f6 U: o
is used for this purpose, there shall be an adequate insulating lining in addition to the+ g- |4 i' H( }! t6 b# I& |) U- S) Z
insulation of the conductors. |
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