江蘇春晨電纜有限公司生產(chǎn)JXF電機(jī)引接線 電機(jī)引出線，

泄漏電流對(duì)溫度的高低也有反映。溫度越高、泄漏電流越大，相應(yīng)的絕緣電阻也越小。固體材料的絕緣電阻隨溫度的增加而下降。

The leakage current also reflects the temperature. The higher the temperature, the greater the leakage current, the smaller the insulation resistance. The insulation resistance of solid materials decreases with the increase of temperature.

絕緣電阻（或介質(zhì)電導(dǎo)）的數(shù)值與電壓有關(guān)，通常在介質(zhì)接近擊穿時(shí)，有顯著的、快速增加的自由電子導(dǎo)電現(xiàn)象，這時(shí)阻值將劇烈下降。

The value of insulation resistance (or dielectric conductivity) is related to the voltage. Generally, when the dielectric is close to breakdown, there is a significant and rapid increase of free electron conductivity, at this time, the resistance will drop sharply.

如下圖所示為固體介質(zhì)的典型電流一電壓特性。其中可劃分為三個(gè)階段。在階段a：電壓與電流的關(guān)系服從歐姆定律；在階段b：電流與電壓 幾乎成指數(shù)關(guān)系；在階段c：電流將隨電壓急劇增加直至擊穿。

As shown in the figure below, typical current voltage characteristics of solid media are shown. It can be divided into three stages. In stage a, the relationship between voltage and current obeys Ohm's law; in stage B, the relationship between current and voltage is almost exponential; in stage C, the current will increase sharply with voltage until breakdown.

絕緣材料中的電流與外加電壓的關(guān)系

The relationship between current and applied voltage in insulating materials

絕緣材料中的電流與外加電壓的關(guān)系

The relationship between current and applied voltage in insulating materials

當(dāng)固體介質(zhì)中存在雜質(zhì)時(shí)，將使絕緣電阻下降，如水分的滲入使介質(zhì)受潮等， 引起的絕緣電阻減小，絕緣強(qiáng)度降低。所以，帶電作業(yè)工具防潮是一個(gè)不容忽視的問(wèn)題。

When there are impurities in the solid medium, the insulation resistance will decrease. For example, the infiltration of moisture will dampen the medium, which will reduce the insulation resistance and the insulation strength. Therefore, the moisture-proof of live working tools is a problem that can not be ignored.

上面討論的是固體介質(zhì)內(nèi)部的電阻（或電導(dǎo)）。實(shí)際上固體介質(zhì)的表面因表面臟污和受潮還存在不小的表面電導(dǎo)。表面電導(dǎo)同臟污和受潮的程度成正比。所以帶電作業(yè)工具表面應(yīng)保持清潔，并且注意不能使之受潮。JXF電機(jī)引接線 電機(jī)引出線

What is discussed above is the resistance (or conductance) inside the solid medium. In fact, the surface conductance of solid media is not small due to surface contamination and moisture. The surface conductance is directly proportional to the degree of dirt and moisture. Therefore, the surface of live working tools should be kept clean and be careful not to damp them.