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Method and apparatus for testing surface breakdown of dielectric materials caused by electrical tracking
Method and apparatus for testing surface breakdown of dielectric materials caused by electrical tracking
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机译:测试电跟踪引起的介电材料表面击穿的方法和设备
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摘要
An apparatus for testing a dielectric sample for susceptibility to surface electrical failure due to tracking. The apparatus includes an enclosure continuously purged of air-borne contaminants, which eliminates external drafts, and a base disposed within the enclosure for supporting the dielectric sample. A pair of electrodes are operably interconnected with a variable voltage power supply and adapted to engage the dielectric sample on a first side with a mutual separation. A source of water and water borne contaminants intermittently discharges the water and water- borne contaminants in droplet form onto the dielectric test sample between the electrodes.
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