|
UL 153 这个灯要做cls 159 mouting means test 吗?这个算弹簧吗(就一个铁线)?/ B# _, B2 e, o: E2 Y% V
159.1.1 A clamp-on unit relying on a spring-actuated clip for securement shall be subjected to the test
/ y7 n) R/ o+ W) N, a, i8 gdescribed in 159.2. Compliance criteria is described in 159.3.7 N( C, a. j: r2 E: c9 ]- Z
159.2 Test method
. g5 D5 P* D1 v* K# Q2 E3 Z- j159.2.1 The test is to be conducted as follows:/ @4 F. @+ {+ d. r1 n$ ^7 E
a) The unit is to be clamped to a smooth vertical unpainted metal surface 1/16 inch (1.6 mm). \- g, C$ H* p5 D
thick. A weight equal to the weight of the unit is to be attached at the point where the clamp is) H, O& E( Z5 F7 s# Z6 b; D
secured to the unit. See Figure 159.1.
& w& r8 h5 V: zb) The test is to be repeated with the unit clamped to a smooth, unpainted pine wood surface
# O4 j4 f* G& P' }$ G1-1/2 inches (38 mm) thick.( m2 q) D$ U: k
c) For each of the above conditions, the weight is to be applied gradually and maintained for8 O' A+ v5 v% u) ^+ i' J
one hour.# p p0 a& ^; O
|
本帖子中包含更多资源
您需要 登录 才可以下载或查看,没有账号?注册安规
x
|