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本帖最后由 af204 于 2013-2-28 13:55 编辑
$ U; A! j5 u" I0 S$ Z五星四射 发表于 2013-2-28 13:37 , v: x" h8 R/ v1 _# P
这个变形是指所有部位,还是只是悬挂的部位呢? / _5 ~$ V# \: o" S
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4.14.1 Mechanical suspensions shall have adequate factors of safety.
7 e! d9 Y$ X3 k$ Y: oCompliance is checked by the appropriate test from the following
4 w) E( C/ x QTest A, for all suspended luminaires: A constant, evenly distributed load equal to four times the
# X7 e3 ^4 q& p8 j( [& T: b: W9 mweight of the luminaire shall be added to the luminaire in the normal direction of the load for a
, ?/ I6 h8 U4 Eperiod of 1 h. There shall be no appreciable deformation of the components of the suspension system at the end of this period.4 s' |9 }8 c2 l @, j3 P
9 m2 D3 T3 @3 V3 Z. E, [& b+ j标准里说的,只是指悬挂系统不得出现变形,从标题也能看出,该条款只是针对悬挂系统
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