这种试验主要被用于测试中高功率的电力或电子技术中采用的元器件或设备(断路器，开关，变压器，绝缘子等等)。

These tests are above all used to test components or equipment employed in electricity or electro-technology of medium and high power (circuit-breakers, switches, transformers, insulators, etc...).

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可以认为每个测试点都是一个绝缘的电阻器。

Each test site can be thought of as an isolated resistor.

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图2 - 12示出了测试夹具上由两个绝缘子支撑的高阻器(RDUT)。

Figure 2-12 shows a high mega-ohm resistor (RDUT) supported on two insulators mounted in a metal test fixture.

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