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节选自 IEC 60529: 2001+ d7 y; f" Z/ ]' n; j4 O5 \
对于IPX3:# x' o Q# T, d3 P4 f# ]3 ?
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.$ {9 q+ w" I- e7 S* M- n, X0 g I
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
* R- q. W( K# V O% Y) r# Q2 v, w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.- {8 i* w7 v0 K4 U
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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