注2：不考虑在正常使用中可能发生的基本绝缘失效。
NOTE 2 Failure of basic insulation is not considered likely to occur in normal use.
在绝缘材料中，高压一消除，几乎所有的电子都返会原来正常的位置。
In an insulating material, nearly all the electrons will return to their normal position instantly the high voltage is removed.
绝缘电阻、介质耐压和接触电阻检验是保证电连接器正常可靠地工作的最基本的常规检验项目。
The testing of insulation resistance, dielectrics voltage-resistance and contact resistance is essential for the connector to reliably operate.
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