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UL 153 这个灯要做cls 159 mouting means test 吗？这个算弹簧吗（就一个铁线）？+ B2 m1 C+ z! h/ ?
159.1.1 A clamp-on unit relying on a spring-actuated clip for securement shall be subjected to the test
' |6 g5 ~$ u, R; L* bdescribed in 159.2. Compliance criteria is described in 159.3.
, m5 l6 I) x' y2 T: A1 b, ^159.2 Test method
# W# b, O, `3 |+ d, T9 b! j, H3 X159.2.1 The test is to be conducted as follows:
: ^5 a8 r) W! t6 }6 u8 D" V+ Wa) The unit is to be clamped to a smooth vertical unpainted metal surface 1/16 inch (1.6 mm)" v( A" o3 _. [# y# j6 G
thick. A weight equal to the weight of the unit is to be attached at the point where the clamp is
) p6 h- v+ @+ m0 u. C7 qsecured to the unit. See Figure 159.1.
! X5 K( G2 Z: P3 ]b) The test is to be repeated with the unit clamped to a smooth, unpainted pine wood surface
. |0 Z+ o3 G/ U4 Y( A1-1/2 inches (38 mm) thick.' ?. F9 u4 s$ e3 d Y
c) For each of the above conditions, the weight is to be applied gradually and maintained for
+ W8 k1 Q, V7 _+ Uone hour.8 D2 \7 J& k# }% ]; O8 r
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发表于 2013-4-13 12:51
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