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Arc tracking test0 F9 z; l6 ] e% i, S! x
Arc tracking test
. G: @( f' q+ M0 R( D$ A3 QThe 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.; S0 b8 x* t! z* p
没见过此标准,试翻译一下:1 b* Y) Q/ S9 z% \
电弧起痕试验, t' j- Z" c" [7 M% k. K4 O; v
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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我只看过IEC 60112
6 M9 h9 j" ]1 f8 Q! _$ M D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。& _7 ], z4 ~ a
而且这种失效不是因为在电极间的电弧产生的。/ `/ R& k! Q4 G9 p# p
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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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