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Arc tracking test
1 Z8 V% T; w2 S, l- yArc tracking test % }5 u$ t5 _$ L3 Z9 T% i$ {' M
The objective of this test is to simulate a phenomenon where a small electrical short or arc (caused by a number of factors) will burn the surface of an insulating material. This leaves a carbon deposit (or track) that creates a path for electricity. Repeated arcing and tracking leads to unintended current paths, high temperatures, and can potentially lead to ignition., u. ~5 j% l4 n' K# J9 ^5 b3 X
没见过此标准,试翻译一下:
8 P. [6 G* M4 T6 X& l电弧起痕试验$ q" t9 v' u7 q6 T( T) B8 O* ^6 r9 u- L
本试验的目的是模拟轻微的电气短路或起弧(由众多因素产生)使绝缘材料表面燃烧的现象。该现象留下产生电气通路的碳附着(或起痕)。重复的起弧和起痕导致不需要的电流通路,高温,及可能导致引燃。
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8 V! c* b2 k" D$ {2 Y1 B$ J: o我只看过IEC 601120 s1 m T3 ]2 M u
可以从IEC 60112得到启发。IEC 60112中的漏电起痕失效的判断是过电流装置动作,或持久火焰。3 I+ Z) l4 k# R8 S( H
而且这种失效不是因为在电极间的电弧产生的。/ q5 m0 W/ d! f0 ~* ]8 C! p/ [
' i* k, j3 f r8 U' c. |8 R那么可以LZ所述测试,是让放在塑料上的电极间产生电弧。 |
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