产品中心
新闻动态 当前位置:首页>新闻动态>新闻动态

影响接地电阻柜使用寿命的因素

网址:www.jiedixiang58.com  2020-07-02  作者:admin    阅读:

接地电阻柜使用寿命由制造它的材料所决定,制造接地电阻柜的材料有金属材料和绝缘材料两大类。金属材料耐高温,而绝缘材料长期在较高的温度、电场和磁场作用下,会逐渐失去原有的力学性能和绝缘性能,例如变脆、机械强度减弱、电击穿。这个渐变的过程就是绝缘材料的老化。温度愈高,绝缘材料的力学性能和绝缘性能减弱得越快;绝缘材料含水分愈多,老化也愈快。接地电阻柜中的绝缘材料要承受接地电阻柜运行产生的负荷和周围环境的作用,这些负荷的总和、强度和作用时间决定绝缘材料的使用寿命。
The service life of the grounding resistance cabinet is determined by the material it is made of. There are two kinds of materials for manufacturing the grounding resistance cabinet: metal material and insulating material. Metal materials are resistant to high temperature, while insulating materials will gradually lose their original mechanical and insulating properties under the action of high temperature, electric field and magnetic field for a long time, such as brittle, mechanical strength weakening and electric breakdown. This gradual process is the aging of insulation materials. The higher the temperature, the faster the mechanical properties and insulation properties of insulation materials weaken; the more moisture content of insulating materials, the faster aging. The insulation materials in the grounding resistance cabinet should bear the load generated by the operation of the grounding resistance cabinet and the effect of the surrounding environment. The sum, strength and action time of these loads determine the service life of the insulation materials.

返回新闻

电话
15003226909