ASTM D3426用脉冲波法测定固体电绝缘材料电介质击穿电压及抗电强度标准试验方法
日期:2012-02-10 17:33
electrodes, to make negative that electrode at which the higher gradient will appear. When asymmetrical electrodes are used for testing materials with which the tester has no previous experience or knowledge, it is recommended that he make comparative tests with positive polarity and negative polarity applied to the higher gradient, or smaller electrode, to determine which polarity produces the lower breakdown voltage.
The standard wave shape is a 1.2 by 50-s wave, reaching peak voltage in app
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