ASTM D1389薄固体电绝缘材料的保护电压试验用标准试验方法_防火测试中心_防火资源网

ASTM D1389薄固体电绝缘材料的保护电压试验用标准试验方法
日期:2012-02-08 16:31
se defects. The proof-voltage test serves to indicate the frequency of occurrence of dielectric defects and facilitates the isolation of areas where the defects are excessive.
Some uses of thin electrical insulating materials require the complete absence of any dielectric defects. The proof-voltage test serves to locate dielectric defects, making possible repair or replacement of the area involved as may be desirable.
In the absence of detected faults, this test method is nondestructive to the m

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