交(jiao)聯聚乙烯(xi)絕緣電(dian)(dian)(dian)力(li)電(dian)(dian)(dian)纜(簡(jian)稱交(jiao)聯電(dian)(dian)(dian)纜)的電(dian)(dian)(dian)場分布均(jun)勻(yun)，沒(mei)有切向(xiang)應(ying)力(li)，重(zhong)量(liang)輕，載流量(liang)大，已(yi)用于6~35kV及110~ 220kV的電(dian)(dian)(dian)纜線路(lu)中。

1kV交聯聚乙(yi)烯(xi)絕(jue)緣電(dian)(dian)力電(dian)(dian)纜與聚氯(lv)乙(yi)烯(xi)絕(jue)緣電(dian)(dian)力電(dian)(dian)纜的結構基(ji)本(ben)相(xiang)同，其結構見圖1-2。

圓形(xing)導體外有(you)內屏(ping)蔽(bi)(bi)層(ceng)、交(jiao)聯聚乙烯絕緣層(ceng)和外屏(ping)蔽(bi)(bi)層(ceng)。外面(mian)還有(you)保(bao)護(hu)(hu)(hu)帶(dai)(dai)、銅線(xian)屏(ping)蔽(bi)(bi)、銅帶(dai)(dai)和塑料(liao)帶(dai)(dai)保(bao)護(hu)(hu)(hu)層(ceng);三個纜芯(xin)中間有(you)一圓形(xing)填芯(xin)，連同填料(liao)扭絞成纜后，外面(mian)再加護(hu)(hu)(hu)套(tao)(tao)、鎧裝等(deng)保(bao)護(hu)(hu)(hu)層(ceng)。導體屏(ping)蔽(bi)(bi)層(ceng)為(wei)半(ban)導電(dian)材料(liao)，絕緣屏(ping)蔽(bi)(bi)層(ceng)為(wei)半(ban)導電(dian)交(jiao)聯聚乙烯，并在其(qi)外繞包一-層(ceng)0. 1mm厚(hou)的(de)(de)金(jin)屬(shu)帶(dai)(dai)(或金(jin)屬(shu)絲)。電(dian)纜內護(hu)(hu)(hu)層(ceng)(套(tao)(tao))的(de)(de)型式，除了上(shang)面(mian)介紹的(de)(de)三個絕緣線(xian)芯(xin)共(gong)用一個護(hu)(hu)(hu)套(tao)(tao)外，還有(you)絕緣線(xian)芯(xin)分相護(hu)(hu)(hu)套(tao)(tao)。分相護(hu)(hu)(hu)套(tao)(tao)電(dian)纜相當于三個單芯(xin)電(dian)纜的(de)(de)簡單組合。6~35kV交(jiao)聯聚乙烯絕緣電(dian)力電(dian)纜已廣泛使用。

導(dao)體屏蔽層(ceng)(ceng)為半導(dao)電(dian)(dian)材料，絕緣(yuan)屏蔽層(ceng)(ceng)為半導(dao)電(dian)(dian)交聯聚乙(yi)烯(xi)，并(bing)在其外繞包一層(ceng)(ceng)0. lmm厚的金屬帶(dai)(或金屬絲)。電(dian)(dian)纜(lan)(lan)內(nei)護層(ceng)(ceng)(套)的型式(shi)，除了上(shang)面介(jie)紹的三(san)個絕緣(yuan)線(xian)芯(xin)共用一個護套外，還有絕緣(yuan)線(xian)芯(xin)分(fen)相護套。分(fen)相護套電(dian)(dian)纜(lan)(lan)相當(dang)于三(san)個單(dan)芯(xin)電(dian)(dian)纜(lan)(lan)的簡(jian)單(dan)組合。6~35kV交聯聚乙(yi)烯(xi)絕緣(yuan)電(dian)(dian)力電(dian)(dian)纜(lan)(lan)已廣(guang)泛使用。