| 塑料电表箱为什么要绝缘电阻呢？ |
| 添加时间：2019/2/14 14:35:18 浏览次数： |
| 塑料电表箱采用绝缘电阻在用电过程中就存在着用电安全题目。绝缘电阻是电气设备和电气线路最基本的绝缘指标。 In the course of using electricity, there is a problem of safety in using electricity for plastic meter box with insulation resistance. Insulation resistance is the basic insulation index of electrical equipment and circuit. 一样平常材料的绝缘电阻值随环境温湿度的升高而减小。相对而言，外观电阻(率)对环境湿度比较敏感，而体电阻(率)则对温度较为敏感。湿度增长，外观走漏增大，导体电导电流也会增长。温度升高，载流子的活动速率加快，介质材料的吸取电流和电导电流会响应增长，据有关资料报道，一样平常介质在70℃时的电阻值仅有20℃时的10%。因此，测量绝缘电阻时，必须指明试样与环境达到平衡的温湿度。 As usual, the insulation resistance of ordinary materials decreases with the increase of ambient temperature and humidity. Relatively speaking, the apparent resistance (rate) is sensitive to environmental humidity, while the bulk resistance (rate) is sensitive to temperature. When the humidity increases, the appearance leakage increases, and the conductive current of the conductor also increases. As the temperature rises, the carrier activity rate increases, and the current absorbed and www.yanglaoyuant.com.cnwww.diandongment.com.cnwww.taiyuanbanjia.com.cnwww.gonglujiemuju.c nwww.turangxiufuu.cnwww.yanglaoyuand.cnconducting by the dielectric materials will respond to the increase. According to relevant reports, the resistance value of ordinary dielectrics at 70 C is only 10% of that at 20 C. Therefore, when measuring insulation resistance, it is necessary to specify the temperature and humidity of the sample in equilibrium with the environment. 重要照旧由于绝缘电阻可以防漏电。所以塑料电表箱采用绝缘电阻。！Importantly, as insulation resistance can prevent leakage. So the insulation resistance is used in the plastic meter box. |
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