ASTM D2275固体电绝缘材料表面对局部放电(电晕)的耐电压性标准试验方法
日期:2012-02-10 10:39
including surface corona. In summary, voltage stress-time curves are useful tools for examining modes and mechanisms of failure, but must be used with care.
For materials that possess a basic resistance to corona, such as mica, or, to a smaller degree, silicone rubber, the time required for the curve to reach the threshold produced by corona may be greater by many orders of magnitude than the time required for materials such as polyethylene, polyethylene terephthalate, or polytetrafluoroethylene
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