|
UL 153 这个灯要做cls 159 mouting means test 吗?这个算弹簧吗(就一个铁线)?/ M0 {& E+ p$ a, A) f
159.1.1 A clamp-on unit relying on a spring-actuated clip for securement shall be subjected to the test" X L0 l& ?/ D, _
described in 159.2. Compliance criteria is described in 159.3.
9 K0 q" F# [7 ~3 |4 \159.2 Test method
/ ^7 ^5 l" }: K7 M: i159.2.1 The test is to be conducted as follows:& |9 [- P+ Q4 q3 w/ }5 v
a) The unit is to be clamped to a smooth vertical unpainted metal surface 1/16 inch (1.6 mm)- Q" t2 S( t0 p
thick. A weight equal to the weight of the unit is to be attached at the point where the clamp is: v+ K( c. B6 b* W% k ^
secured to the unit. See Figure 159.1.' ~& u4 i- T+ h. t- p0 [
b) The test is to be repeated with the unit clamped to a smooth, unpainted pine wood surface
: M4 B5 y7 P- f1-1/2 inches (38 mm) thick.
3 H* ^/ E# d A2 U7 vc) For each of the above conditions, the weight is to be applied gradually and maintained for
$ [5 m! }, a) @. C/ lone hour.2 l" T2 |: ~; z3 J9 I6 \2 ]- N3 ?
|
本帖子中包含更多资源
您需要 登录 才可以下载或查看,没有帐号?注册安规
x
|