标题: 关于电线压线架的要求 [打印本页] 作者: brent 时间: 2008-8-19 20:27 标题: 关于电线压线架的要求 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： 1 \; {3 Q% \: c' x9 Y3 T/ q$ U1 M' N2 S0 }! ^! a2 U; b7 {
5.2.10 Luminaires provided with or designed for use with a supply cord or other external( o. u- w( Q; y$ X2 }# R
flexible cable or cord shall have a cord anchorage such that the conductors are relieved from" V/ [. J4 K* X8 V( J3 R; }6 K' W
strain, including twisting, where they are connected to the terminals, and such that their, W8 N2 C! F. }! L
covering is protected from abrasion. It shall be clear how the relief from strain and the; H4 ~/ J6 b6 N+ o, k
prevention of twisting is intended to be effected. For luminaires supplied without a cable or 5 D- c) S1 O" f' i0 z3 c' Bcord, suitable test cables or cords of the largest and smallest sizes recommended by the8 O4 n( p$ R: o; G
luminaire manufacturer shall be used for the tests.3 [1 G2 [6 J" D. j
0 ^% m( {" D+ E6 P2 s1 \! x+ oIt shall not be possible to push the flexible cable or cord into the luminaire to such an extent # {$ B+ Y% {( ~# E" A& Wthat the cable or cord is subjected to undue mechanical or thermal stress. Methods such as( Y) ]+ i0 e4 c. b
tying the cable or cord into a knot or tying the ends with string shall not be used. : G0 F+ u' X: |8 E* j$ S& ~, M' M ! q- G6 R {4 D( m* [! C5 f: N: ICord anchorage shall be of insulating material or be provided with a fixed insulating lining if an P. ^+ N" M" T7 P9 Z' f2 ninsulation fault on the cable or cord could make accessible metal parts live.$ G1 o7 S4 |$ X. L+ V