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二类灯具,压线架是金属,在一塑胶外壳内,实验室的工程师说不接受这种结构,要求用塑胶的压线架,但查标准如下:
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' ]* U5 w! p3 l+ z" q1 p5.2.10 Luminaires provided with or designed for use with a supply cord or other external
6 e) ^+ A; w- @: P9 \/ n H# ?flexible cable or cord shall have a cord anchorage such that the conductors are relieved from Z6 Q/ L0 }' F- h, J+ ?
strain, including twisting, where they are connected to the terminals, and such that their
: v& _2 ?. h1 h& {covering is protected from abrasion. It shall be clear how the relief from strain and the
3 ~1 B$ {7 X( Y, h$ ?% }* Hprevention of twisting is intended to be effected. For luminaires supplied without a cable or& {- n) K& x, G% ~# P
cord, suitable test cables or cords of the largest and smallest sizes recommended by the
" i+ X; r, v$ F) jluminaire manufacturer shall be used for the tests.5 ]6 m0 O; O3 C' F% f$ p7 n
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It shall not be possible to push the flexible cable or cord into the luminaire to such an extent8 e& V3 A0 g) Y
that the cable or cord is subjected to undue mechanical or thermal stress. Methods such as
& [2 Z$ U: b5 utying the cable or cord into a knot or tying the ends with string shall not be used.
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' `5 F- D( ]0 _3 l1 [( O/ pCord anchorage shall be of insulating material or be provided with a fixed insulating lining if an
9 s( W9 S4 U% d* ~insulation fault on the cable or cord could make accessible metal parts live.
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2 w4 P' C' G3 b) F9 @5 s8 g, R红色部分应该说明了这一点,如果绝缘失效而不使可接触金属带电就可以了,因我们压线架的塑胶外壳内,不可能使金属部件带电,应该是符合要求的。) F" s+ L7 h. @0 t) \" w( }
# A) R7 b- J- o( [大家有什么看法,是否遇到这样的问题? |
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