标题: IEC60730.1标准中爬电距离 材料类别和污染等级 [打印本页] 作者: yiming_san 时间: 2018-12-7 16:51 标题: IEC60730.1标准中爬电距离 材料类别和污染等级 请问IEC60730.1标准中爬电距离测量，其材料类别和污染等级怎么确定呢？有什么标准详细分类了吗？谢谢。作者: H-RH 时间: 2018-12-7 18:08
污染等级参考这个: / C* g: T9 z. [ l6 g m: ^# i# `https://www.myomron.com/index.php?action=kb&article=513 $ H5 t- x' g8 V- e4 t6 [ 9 @1 E4 O/ [- W% P& IPollution Degree 1 : No pollution or only dry non-conductive pollution. It has no effect. Clean room environments, Inside sealed components ; o n( }% f0 U! u: V8 v4 K2 f8 L8 _2 n5 E; s @
Pollution Degree 2: Normally only non-conductive pollution. Temporary Condensation possible. Offices, laboratories, test stations8 |& a6 H2 F6 t* j9 j
7 u; g8 g9 P! h$ p) j: O
Pollution Degree 3: Conductive and non-conductive pollution present. Condensation frequent. Industrial & farming areas (under cover), unheated rooms, Boiler rooms) x7 l" ]5 {% x s: |5 ?% W
( |% F1 C, Y: Q
Pollution Degree 4: Pollution generates persistent conductivity caused by wet dust, rain or snow. Outdoor use, remote stations ' g, p6 b0 a4 Y% i) u; h) j- B# e 9 O% Z4 T" W, l7 V . }* R" D- u4 [. ? ( t, F( z2 [1 m0 w7 D+ o: F( _6 T , a% X4 A3 R3 o. Q材料类别 (Material group) 在 6.13: 7 W! _2 m6 B- u6.13.1 – material of material group IIIb with a PTI of 100 and up to but excluding 175;& l) S8 c2 ?. n: E3 w
6.13.2 – material of material group IIIa with a PTI of 175 and up to but excluding 400; 7 }- Z- V: @1 g- }7 ]0 M, @6.13.3 – material of material group II with a PTI of 400 and up to but excluding 600;. Y2 \2 M" F9 h" N3 z) }+ D
6.13.4 – material of material group I with a PTI of 600 and over., ~1 O1 _" _2 { j" ?