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以下节选自60598-1 section 4: Construction3 {, N- S5 D' N4 W) N
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4.13.4 $ L' \ H3 V3 {; m! K, R
c) Luminaires delievered with a stand
/ s* h. y/ r( i, pAny lamp(s) are removed before the tests, @# E" c9 @" |* G X/ @ e
The luminaire and stand shall not overturn at an angle of 6°from the vertical
0 }8 D/ p' j1 X! i, C. {4 {The luminaire shall withstand the impacts resulting from overturning four times from an angle up % Q9 x( J/ ]7 M4 j1 L* Z7 R$ J# P
to 15°from the vertical5 I0 }! d( f% d& [* s
The fixation means of the stand shall withstand a force of four times the weight of the luminaire in
" c! q2 J& v8 {& |9 g0 o1 Sthe most onerous direction.
( @6 I$ f5 R* ^If the luminaire overturns during the test on the plane inclined at an angle of 15°from the vertical, the test of 12.5.1 is made with the luminaire on a horizontal surface, in the most unfavourable of the overturned positions that may reasonably be expected in practice. q9 y1 ]7 e) w6 d4 X8 J
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问:on the plane inclined at an angle of 15°from the vertical 是与垂线成15°的平面的意思吗?如果此意思正确,即灯具要过75°斜台,有什么灯具可以过75°斜台而不倾倒的吗???
) l, V( N6 G3 ]* M4 b若是我理解错误,即灯具要过15°斜台。如果能过的话,那么上面提到的4次与垂线成最大15°的倾翻撞击测试怎样实现。
4 X7 b4 r; ~ D% x \% m$ f6 u既然有15°的要求,那上面提到的6°还需要吗?有何意义?0 Y& y8 [7 v- V r" Y! ^- D. Y
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一直不能准确的理解此段的内容,还请各位指教,谢! |
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