我國(guo)輸(shu)電(dian)(dian)與(yu)配電(dian)(dian)電(dian)(dian)壓(ya)等級劃(hua)分為: 220/380V、 3kV、6kV、10kV、 35kV、 110kV、220kV.330kV. 500kV等，并(bing)劃(hua)分為輸(shu)電(dian)(dian)電(dian)(dian)壓(ya)與(yu)配電(dian)(dian)電(dian)(dian)樂兩類。

按(an)照(zhao)原能源(yuan)部(bu)和建(jian)設部(bu)聯合(he)頒布的(de)《聯合(he)電(dian)(dian)力(li)網規劃(hua)(hua)導則》規定(ding)，將(jiang)配(pei)(pei)電(dian)(dian)電(dian)(dian)壓劃(hua)(hua)分為(wei):輸(shu)、配(pei)(pei)電(dian)(dian)用的(de)電(dian)(dian)纜(lan)稱為(wei)電(dian)(dian)力(li)電(dian)(dian)纜(lan),電(dian)(dian)力(li)電(dian)(dian)纜(lan)的(de)電(dian)(dian)壓等級依照(zhao)輸(shu).配(pei)(pei)電(dian)(dian)電(dian)(dian)壓等級劃(hua)(hua)分。

不過(guo)，電(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)纜(lan)技術中(zhong)，通(tong)常(chang)把35kV及以下電(dian)(dian)(dian)(dian)壓(ya)(ya)等(deng)(deng)級(ji)的(de)電(dian)(dian)(dian)(dian)纜(lan)稱為(wei)中(zhong)低(di)壓(ya)(ya)電(dian)(dian)(dian)(dian)纜(lan)，而把110kV及以上(shang)(shang)電(dian)(dian)(dian)(dian)壓(ya)(ya)等(deng)(deng)級(ji)的(de)電(dian)(dian)(dian)(dian)纜(lan)稱為(wei)高(gao)壓(ya)(ya)電(dian)(dian)(dian)(dian)纜(lan)。我因交流(liu)發(fa)電(dian)(dian)(dian)(dian)機(ji)及變玉(yu)器的(de)額(e)定電(dian)(dian)(dian)(dian)壓(ya)(ya)為(wei)3.15kV、6.3kV、 10. 5kV.15.7kV、 18kV.20kV等(deng)(deng)，變壓(ya)(ya)器尚(shang)有35kV及以上(shang)(shang).電(dian)(dian)(dian)(dian)壓(ya)(ya)。因此電(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)纜(lan)為(wei)適應這類設備引出線的(de)需要還(huan)生，產(chan)廠6kV、15kV、20kV電(dian)(dian)(dian)(dian)壓(ya)(ya)等(deng)(deng)級(ji)的(de)電(dian)(dian)(dian)(dian)纜(lan)。

汕浸紙絕緣電力電纜生產(chan)和(he)使用(yong)歷史*長(chang)，它具(ju)有使用(yong)壽命(ming)長(chang)，電性能良(liang)好，熱(re)穩(wen)定性高等優點(dian)，適(shi)用(yong)于各(ge)種電壓等級，低壓可用(yong)在(zai)1kV及(ji)以下，高壓已用(yong)于500kV的(de)輸(shu)電線路中(zhong)，如330kV高壓充油電纜已應用(yong)于我國(guo)西北地區(qu);而*上第--條(tiao)連接歐洲與非(fei)洲、從西班牙到(dao)摩洛(luo)昏的(de)400kV線路已于1998年開(kai)始(shi)運行。

塑料絕(jue)緣(yuan)(yuan)電(dian)力(li)電(dian)纜的(de)(de)(de)(de)電(dian)個(ge)性(xing)能雖然不如(ru)油沒紙絕(jue)緣(yuan)(yuan)電(dian)力(li)電(dian)纜優(you)良，但其制造(zao)工(gong)(gong)藝簡(jian).單，重量(liang)輪(lun)而(er)柔軟，沒有敷(fu)設落(luo)差的(de)(de)(de)(de)限(xian)制，電(dian)纜的(de)(de)(de)(de)施(shi)T、維(wei)護(hu)比較(jiao)簡(jian)單，且具有抗化(hua)學腐蝕(shi)的(de)(de)(de)(de)性(xing)能，因而(er)在35kV及(ji)(ji)以(yi)下(xia)電(dian)壓等級中(zhong)是油沒紙絕(jue)緣(yuan)(yuan)電(dian)力(li)電(dian)纜更新換代(dai)的(de)(de)(de)(de)主流(liu)產品。其中(zhong)，聚氯乙烯絕(jue)緣(yuan)(yuan)電(dian)纜，由于介質損(sun)失大(da)，在較(jiao)高電(dian)壓下(xia)運(yun)行不經濟(ji)，因此主要(yao)用在IkV及(ji)(ji)以(yi)下(xia)的(de)(de)(de)(de)配電(dian)線路上。而(er)交聯聚乙烯絕(jue)緣(yuan)(yuan)電(dian)纜的(de)(de)(de)(de)電(dian)氣絕(jue)緣(yuan)(yuan)性(xing)能優(you)良，特(te)(te)別是具有較(jiao)高的(de)(de)(de)(de)熱穩定性(xing)，長(chang)期允許工(gong)(gong)作溫度(du)可達90心(xin)，因此對(dui)電(dian)壓等級高的(de)(de)(de)(de)電(dian)纜經濟(ji)效果特(te)(te)別顯著,國內已(yi)大(da)量(liang)用于lI0kV及(ji)(ji)以(yi)下(xia)輸、配電(dian)線路中(zhong)。

橡膠(jiao)電(dian)力(li)電(dian)纜(lan)，由于(yu)(yu)其(qi)柔(rou)性特別(bie)好，運(yun)行維護很(hen)方便。適用(yong)于(yu)(yu)35kV及以(yi)下(xia)的線路中,特別(bie)適用(yong)于(yu)(yu)礦山、船舶等場(chang)所以(yi)及其(qi)他經(jing)常移動的電(dian)器設備。