民一FZSW-24/8硅橡胶支柱绝缘子20kv

民一FZSW-24/8硅橡胶支柱绝缘子20kv
FZSW4-10/4 10 4 215±10 140 311 75 42
FZSW4-20/6 20 6 260±10 195 470 150 65
FZSW4-35/6 35 6 450±10 378 926 185 95
FZSW4-35/8 35 8 450±10 380 966 185 95
FZSW4-66/6 66 6 760±10 634 1890 410 185
FZSW4-66/8 66 8 760±10 630 2020 410 185
FZSW4-110/8 110 8 1220±15 1070 3988 550 230
FZSW4-110/10 110 10 1140±15 1030 3988 550 230
FZSW4-220/8 220 8 2260±20 2200 7800 1050 395
绝缘子是一种特殊的绝缘控件，能够在架空输电线路中起到重要作用。早年间绝缘子多用于电线杆，慢慢发展于高型高压电线连接塔的一端挂了很多盘状的绝缘体，它是为了增加爬电距离的，通常由玻璃或陶瓷制成。绝缘子在架空输电线路中起着两个基本作用，即支撑导线和防止电流回地，这两个作用得到，绝缘子不应该由于环境和电负荷条件发生变化导致的各种机电应力而失效，否则绝缘子就不会产生重大的作用，就会损害整条线路的使用和运行寿命According to the manufacturing materials, insulators are generally divided into glass insulator, ceramic insulator and organic composite insulator. The early materials of organic composite insulator are mainly epoxy resin, ethylene propylene rubber, etc. In the 1970s, high temperature vulcanized silicone rubber insulators came out. Compared with traditional porcelain and glass insulators, silicone rubber insulators have the advantages of light weight, high strength, strong pollution flashover resistance, convenient manufacturing and maintenance. In the following decades, silicone rubber insulators have been widely used in the world.硅橡胶体系不显极性，当极性的水滴和雾珠落在硅橡胶表面时，材料表面对水具有诱导力和色散力，使其散落在表面不至滚落。因为液体内部水分子比外部空气对表层水分子吸引力大得多，使绝大部分雾珠和雨滴都以球状存在，如果雾珠和雨滴不断增大, 将在硅橡胶斜面下滑力作用下滚落，使材料表现憎水性