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Arc tracking test
3 \7 Z8 Y8 I# L" y- z, S3 T- f7 JArc tracking test ; e+ V7 N+ r* k% {
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.
: r/ s( M, Z3 F$ [; i没见过此标准,试翻译一下:
, T' I* E! ]0 G/ Q电弧起痕试验
8 x0 A" M5 b. o7 f& ?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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; N4 {1 o) N# p! j我只看过IEC 60112* ~( s) k- p- R, {
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。
- \$ v/ a8 E9 u$ n0 D而且这种失效不是因为在电极间的电弧产生的。$ h H* Q# E% z0 ?' b
9 ~: q* u" s0 s. F N$ \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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