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本帖最后由 af204 于 2013-2-28 13:55 编辑
/ F# ?+ H o' z# h4 G- H1 X五星四射 发表于 2013-2-28 13:37
; m$ U% }/ {/ m/ w" B3 I, O, G! I7 e" m这个变形是指所有部位,还是只是悬挂的部位呢?
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6 N; O& o4 P6 `6 p4 R0 e4.14.1 Mechanical suspensions shall have adequate factors of safety.9 [% I( [! y4 z+ w& o: L
Compliance is checked by the appropriate test from the following$ \# D( k* z* A# r* U9 e% g
Test A, for all suspended luminaires: A constant, evenly distributed load equal to four times the% M! t! f% B* v
weight of the luminaire shall be added to the luminaire in the normal direction of the load for a
, x2 P1 r% y9 ~* e9 {7 l3 J* dperiod of 1 h. There shall be no appreciable deformation of the components of the suspension system at the end of this period.! W4 D) y; o" w9 w3 @
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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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