交流輸電(dian)(dian)線(xian)(xian)(xian)(xian)路(lu)的(de)(de)電(dian)(dian)暈(yun)(yun)損(sun)失主(zhu)要與(yu)導(dao)(dao)(dao)線(xian)(xian)(xian)(xian)表(biao)(biao)面場(chang) 強和(he)(he)天氣有(you)關，根據絕緣水平要求確定了(le)相間(jian)距離 后，導(dao)(dao)(dao)線(xian)(xian)(xian)(xian)表(biao)(biao)面場(chang)強主(zhu)要與(yu)導(dao)(dao)(dao)線(xian)(xian)(xian)(xian)分裂數(shu)、分裂間(jian)距和(he)(he) 子(zi)導(dao)(dao)(dao)線(xian)(xian)(xian)(xian)直(zhi)徑(jing)有(you)關，分裂數(shu)越(yue)多，子(zi)導(dao)(dao)(dao)線(xian)(xian)(xian)(xian)直(zhi)徑(jing)越(yue)大(da)， 表(biao)(biao)面場(chang)強越(yue)小。擴徑(jing)導(dao)(dao)(dao)線(xian)(xian)(xian)(xian)通過支(zhi)撐鋁(lv)線(xian)(xian)(xian)(xian)疏繞的(de)(de)方式 擴大(da)了(le)導(dao)(dao)(dao)線(xian)(xian)(xian)(xian)外徑(jing)，這樣可減(jian)小導(dao)(dao)(dao)線(xian)(xian)(xian)(xian)表(biao)(biao)面的(de)(de)電(dian)(dian)場(chang)強度(du)和(he)(he)電(dian)(dian)暈(yun)(yun)放電(dian)(dian)，降低噪聲，減(jian)少(shao)對無線(xian)(xian)(xian)(xian)電(dian)(dian)的(de)(de)干擾。相 對于常(chang)規導(dao)(dao)(dao)線(xian)(xian)(xian)(xian)，擴徑(jing)導(dao)(dao)(dao)線(xian)(xian)(xian)(xian)重量(liang)較輕，安裝敷(fu)設后的(de)(de) 塑蠕伸長減(jian)小，導(dao)(dao)(dao)線(xian)(xian)(xian)(xian)永(yong)久(jiu)變形(xing)減(jian)少(shao)，在滿足輸送(song)容 量(liang)要求和(he)(he)環境(jing)保護指標的(de)(de)前(qian)提下，可大(da)幅降低線(xian)(xian)(xian)(xian)路(lu) 整體(ti)造(zao)價。簡單說(shuo)來，擴徑(jing)導(dao)(dao)(dao)線(xian)(xian)(xian)(xian)是從常(chang)規導(dao)(dao)(dao)線(xian)(xian)(xian)(xian)中抽取數(shu)股 鋁(lv)線(xian)(xian)(xian)(xian)后繞制(zhi)而成的(de)(de)。 

分(fen)裂(lie)(lie)導(dao)(dao)(dao)(dao)線(xian)(xian)是(shi)由(you)三(san)根或(huo)四根單芯導(dao)(dao)(dao)(dao)線(xian)(xian)經過(guo)某種工藝制(zhi)造在(zai)一起的(de)(de)(de)一種可(ke)分(fen)裂(lie)(lie)的(de)(de)(de)導(dao)(dao)(dao)(dao)線(xian)(xian)，或(huo)者(zhe)稱導(dao)(dao)(dao)(dao)線(xian)(xian)束， 這種分(fen)裂(lie)(lie)導(dao)(dao)(dao)(dao)線(xian)(xian)不僅(jin)僅(jin)是(shi)形式(shi)上與(yu)常規(gui)導(dao)(dao)(dao)(dao)線(xian)(xian)不同，由(you)于(yu)分(fen)裂(lie)(lie)導(dao)(dao)(dao)(dao)線(xian)(xian)可(ke)使導(dao)(dao)(dao)(dao)線(xian)(xian)周圍磁場分(fen)布(bu)改變，從而等(deng)效地(di)增(zeng)(zeng)大了導(dao)(dao)(dao)(dao)線(xian)(xian)半徑，減小了導(dao)(dao)(dao)(dao)線(xian)(xian)電抗(kang)；同時也(ye)改變了導(dao)(dao)(dao)(dao)線(xian)(xian)周圍的(de)(de)(de)電場分(fen)布(bu)， 使導(dao)(dao)(dao)(dao)線(xian)(xian)的(de)(de)(de)電納也(ye)相(xiang)應(ying)增(zeng)(zeng)大。 

遼寧大元電纜制造有限公司位于鐵嶺鐵西工業園區，成立于1989年6月18日，原廠名為“鐵嶺大元電纜有限公司”。為了適應市場需求，同時公司規模的不斷擴大和發展，于2012年6月更名為“遼寧大元電纜制造有限公司”，占地面積18000平方米，是電線電纜產品的專業生產制造商。