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节选自 IEC 60529: 2001
& F, a5 k8 b( _9 g+ D- a对于IPX3:" }/ ~0 }9 Q, d% n% `" u* T. n$ y' |
The tube is caused to oscillate throuth an angle of 120 o, 60 o on eitherside of the vertical, the time for one complete oscilaltion (2 x 120 o) being about 4 s and the test duration being 5 min.
. _4 h4 J* t3 L* S离竖直中心位置各60度,两边加起来120度,但要返回原位是2 x120度=240度,所用时间是4s " x1 U/ o! g/ J8 `/ ~ ~/ r4 p2 u
对于IPX4:The tube is caused to oscillate through an angle of almost 360 o, 180 o on eihter side of the vertical, the time for one complete oscillation (2 x 360 o) being about 12 s.$ S; I) l) e X B) s
离竖直中心位置各180度,两边加起来360度,但要返回原位是2 x360度=720度,所用时间是12s . |
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