|
|
节选自 IEC 60529: 20015 m* ^1 U; h6 A/ I4 X- `/ z
对于IPX3:
2 ?4 L9 l( }! {" X) H; ^% J 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.$ o6 [, q/ w+ m2 [: S- `- e
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
, c8 b/ S! m9 t' n7 {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.
: R, r5 n* Y1 M, W2 Z0 h2 \3 C- 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 . |
|