标题: 1598应力问题 [打印本页] 作者: 19800108 时间: 2008-7-10 13:33 标题: 1598应力问题 16.21.1 Strain relief for flexible cords" m2 O* |1 C( e4 O
16.21.1.1 A pull force of 156 N (35 lbf) shall be applied for 1 min to the flexible cord in a direction 6 E; q c# n% k- |! Kperpendicular to the plane of the entrance into the luminaire. 4 f" j" f; \$ E+ x0 E6 |+ C16.21.1.2 Test results shall be acceptable if there is no: * `& Q9 n1 ~9 W8 ?6 \/ l(a) movement of the flexible cord of more than 1.6 mm (0.063 in); and- o1 ]. m1 O" ~
(b) breaking of the conductor or loosening of the wiring connections inside the enclosure of the 7 l7 `7 U9 S1 d" I; c: U1 C6 m7 z0 Bluminaire." h7 \: T! G" A$ Z
以上的测试是怎样做的啊,如果有那个高手能画一个简单的示意图看看,那就真的不胜感激啦.作者: 嘻嘻 时间: 2008-7-10 13:36
简单几个字,做标记,然后是施加一个持续接力156牛( n5 v" R- L5 i$ z, j+ u# I
持续1分钟+ y0 j3 K- ? v- V% S: K, D( X" M
我没本事画示意图作者: 19800108 时间: 2008-7-10 14:02
力是直接加在软缆上吗?用软缆吊着156牛的的重量1分钟可不可行呢?作者: wxjim 时间: 2008-7-10 21:48