高压施加于被试的两个相互绝缘的部件之间，例如被试设备的主电路与其金属外壳。
High voltage is applied between the two parts across the insulation being tested, such as the primary circuit and metal enclosure of the equipment under test (EUT).
高压施加于被试的两个相互绝缘的部件之间，例如被试设备的主电路与其金属外壳。
High voltage is applied between the two parts across the insulation being tested, such as the primary circuit and metal enclosure of the equipment under test (EUT).
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