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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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9 f' n9 S7 d! m @5.2.10 Luminaires provided with or designed for use with a supply cord or other external
+ Z, }; B5 o: e* n/ Sflexible cable or cord shall have a cord anchorage such that the conductors are relieved from
9 i6 {) O" s1 f; ^# w% mstrain, including twisting, where they are connected to the terminals, and such that their" F) H5 }6 _# W; B9 L
covering is protected from abrasion. It shall be clear how the relief from strain and the, F- v" W/ F* l
prevention of twisting is intended to be effected. For luminaires supplied without a cable or
/ x1 }0 G+ u2 \2 \8 ]cord, suitable test cables or cords of the largest and smallest sizes recommended by the
, @5 a q' C7 F6 e5 {luminaire manufacturer shall be used for the tests.
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It shall not be possible to push the flexible cable or cord into the luminaire to such an extent, i) i3 D4 ^: a. L5 b
that the cable or cord is subjected to undue mechanical or thermal stress. Methods such as
# L: Z5 i& I2 \3 btying the cable or cord into a knot or tying the ends with string shall not be used.' a: O& \4 v4 F0 G2 v0 L
& b; s; U0 p: C3 R3 ]Cord anchorage shall be of insulating material or be provided with a fixed insulating lining if an
. c$ f% f( E* n/ K: minsulation fault on the cable or cord could make accessible metal parts live.
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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。2 b- g/ W' A' K! \8 I1 s
1 T: _+ v; Y, W9 C9 @6 z9 T大家有什么看法,是否遇到这样的问题? |
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