按用途分類：

擴(kuo)徑(jing)(jing)(jing)導(dao)(dao)(dao)(dao)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)按用(yong)途分為(wei)兩大類(lei)，一類(lei)擴(kuo)徑(jing)(jing)(jing)導(dao)(dao)(dao)(dao)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)應用(yong)于(yu)變(bian)電(dian)(dian)(dian)(dian)站，另一類(lei)擴(kuo)徑(jing)(jing)(jing)導(dao)(dao)(dao)(dao)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)應用(yong)于(yu)輸(shu)電(dian)(dian)(dian)(dian)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)路。輸(shu)電(dian)(dian)(dian)(dian)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)路用(yong)擴(kuo)徑(jing)(jing)(jing)導(dao)(dao)(dao)(dao)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)為(wei)了(le)減(jian)小(xiao)弧垂，降低塔高，擴(kuo)徑(jing)(jing)(jing)導(dao)(dao)(dao)(dao)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)的(de)(de)(de)(de)拉重比(bi)應與(yu)鋼(gang)芯鋁(lv)絞(jiao)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)相當，所(suo)(suo)以此種擴(kuo)徑(jing)(jing)(jing)導(dao)(dao)(dao)(dao)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)必須有(you)鋼(gang)芯。因為(wei)輸(shu)電(dian)(dian)(dian)(dian)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)路用(yong)擴(kuo)徑(jing)(jing)(jing)導(dao)(dao)(dao)(dao)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)必須采用(yong)張(zhang)力(li)架線(xian)(xian)(xian)(xian)(xian)(xian)(xian)，并且(qie)在(zai)張(zhang)力(li)放線(xian)(xian)(xian)(xian)(xian)(xian)(xian)過(guo)程中經過(guo)若干個滑車后要(yao)求無跳股(gu)、松股(gu)現象，所(suo)(suo)以這種擴(kuo)徑(jing)(jing)(jing)導(dao)(dao)(dao)(dao)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)結(jie)構穩定性的(de)(de)(de)(de)要(yao)求更(geng)高，此種擴(kuo)徑(jing)(jing)(jing)導(dao)(dao)(dao)(dao)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)擴(kuo)徑(jing)(jing)(jing)比(bi)不宜過(guo)大。變(bian)電(dian)(dian)(dian)(dian)站用(yong)擴(kuo)徑(jing)(jing)(jing)導(dao)(dao)(dao)(dao)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)的(de)(de)(de)(de)主要(yao)功用(yong)是將電(dian)(dian)(dian)(dian)流從變(bian)壓器引到輸(shu)電(dian)(dian)(dian)(dian)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)路上，距離通常只(zhi)有(you)幾十米，不用(yong)考慮弧垂、張(zhang)力(li)等(deng)問題。由于(yu)變(bian)電(dian)(dian)(dian)(dian)站母線(xian)(xian)(xian)(xian)(xian)(xian)(xian)的(de)(de)(de)(de)分裂數通常小(xiao)于(yu)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)路導(dao)(dao)(dao)(dao)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)分裂數，在(zai)兩者的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)磁噪聲的(de)(de)(de)(de)環(huan)境限值相近的(de)(de)(de)(de)前提(ti)下，要(yao)求變(bian)電(dian)(dian)(dian)(dian)站母線(xian)(xian)(xian)(xian)(xian)(xian)(xian)的(de)(de)(de)(de)外(wai)徑(jing)(jing)(jing)遠大于(yu)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)路用(yong)導(dao)(dao)(dao)(dao)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)，所(suo)(suo)以此類(lei)擴(kuo)徑(jing)(jing)(jing)導(dao)(dao)(dao)(dao)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)的(de)(de)(de)(de)特點是無鋼(gang)芯，但擴(kuo)徑(jing)(jing)(jing)比(bi)較(jiao)大。

按結構特點分類：

按擴徑(jing)導(dao)線的結構特點，擴徑(jing)導(dao)線分為(wei)四大類，分別為(wei)大內徑(jing)鋁(lv)管(guan)支撐型(xing)(xing)擴徑(jing)導(dao)線、小(xiao)內徑(jing)鋁(lv)管(guan)填充(chong)型(xing)(xing)擴徑(jing)導(dao)線、疏絞型(xing)(xing)擴徑(jing)導(dao)線和高密度聚乙烯支撐型(xing)(xing)擴徑(jing)導(dao)線。

小(xiao)內徑(jing)鋁(lv)(lv)(lv)管(guan)(guan)填充型(xing)擴(kuo)徑(jing)導(dao)(dao)線。此(ci)種擴(kuo)徑(jing)導(dao)(dao)線是(shi)(shi)在鋼芯(xin)外多(duo)個小(xiao)內徑(jing)鋁(lv)(lv)(lv)管(guan)(guan)（代(dai)替鋁(lv)(lv)(lv)單線）絞合(he)而成。大(da)(da)內徑(jing)鋁(lv)(lv)(lv)管(guan)(guan)支撐(cheng)型(xing)擴(kuo)徑(jing)導(dao)(dao)線。此(ci)種擴(kuo)徑(jing)導(dao)(dao)線無鋼芯(xin)，是(shi)(shi)在大(da)(da)內徑(jing)鋁(lv)(lv)(lv)管(guan)(guan)上絞合(he)多(duo)層鋁(lv)(lv)(lv)單線而成。疏(shu)絞型(xing)擴(kuo)徑(jing)導(dao)(dao)線，高密度聚乙烯支撐(cheng)型(xing)擴(kuo)徑(jing)導(dao)(dao)線。

遼寧(ning)大元電(dian)纜(lan)制造有限公司(si)生產(chan)設備先進，檢測手段完善(shan)，其主(zhu)要產(chan)品有各種規格的電(dian)力(li)電(dian)纜(lan)、控制電(dian)纜(lan)、高低(di)壓架空絕緣電(dian)纜(lan)、扁電(dian)纜(lan)、鋼芯鋁絞(jiao)線、地埋電(dian)纜(lan)、各種阻燃(ran)耐火、低(di)煙低(di)鹵、低(di)煙無(wu)鹵、屏蔽(bi)電(dian)纜(lan)及(ji)特種電(dian)纜(lan)，各種產(chan)品均按國家(jia)標準生產(chan)。