的優勢：

　　1.電阻率低：鋁芯電纜的電(dian)阻率比(bi)銅芯電(dian)線電(dian)纜(lan)約高1.68倍。

　　2.延展(zhan)性好：銅合(he)金(jin)的(de)延展(zhan)率(lv)為20~40%,電(dian)工用銅的(de)延展(zhan)率(lv)在(zai)30%以上，而(er)鋁合(he)金(jin)僅(jin)為18%。

　　3.強度高(gao)(gao)：常溫(wen)下的允許(xu)應力，銅比鋁分(fen)別高(gao)(gao)出7~28%。特別是高(gao)(gao)溫(wen)下的應力，兩者相(xiang)差更是甚遠。

　　4.抗(kang)疲勞(lao)：鋁材反(fan)復(fu)折(zhe)彎易斷裂(lie)，銅(tong)則不(bu)易。彈(dan)性(xing)指(zhi)標方面(mian)，銅(tong)芯電(dian)線電(dian)纜的銅(tong)也比鋁高(gao)約1.7~1.8倍。

　　5.穩定性好，耐腐(fu)蝕：銅芯抗氧(yang)化(hua)，耐腐(fu)蝕，而鋁芯容易受氧(yang)化(hua)和腐(fu)蝕。

　　6.載(zai)流(liu)(liu)量大：由于電(dian)阻率低，同截面(mian)的(de)銅(tong)芯(xin)電(dian)線電(dian)纜(lan)要(yao)比(bi)鋁芯(xin)電(dian)纜(lan)允許(xu)的(de)載(zai)流(liu)(liu)量(能夠(gou)通過的(de)大電(dian)流(liu)(liu))高30%左右

　　7.電(dian)(dian)(dian)(dian)(dian)壓(ya)損失低：由于銅芯電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)(de)電(dian)(dian)(dian)(dian)(dian)阻率低，在同(tong)(tong)截面流(liu)過相同(tong)(tong)電(dian)(dian)(dian)(dian)(dian)流(liu)的(de)(de)情(qing)況下。銅芯電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)(de)電(dian)(dian)(dian)(dian)(dian)壓(ya)降小。因此，同(tong)(tong)樣(yang)的(de)(de)輸(shu)電(dian)(dian)(dian)(dian)(dian)距離，能(neng)保證較(jiao)高的(de)(de)電(dian)(dian)(dian)(dian)(dian)壓(ya)質(zhi)量(liang)(liang)；或者說，在允許的(de)(de)電(dian)(dian)(dian)(dian)(dian)壓(ya)降條件下，銅芯電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)輸(shu)電(dian)(dian)(dian)(dian)(dian)能(neng)達到(dao)較(jiao)遠的(de)(de)距離，即(ji)供電(dian)(dian)(dian)(dian)(dian)覆蓋面積大，有利于網絡的(de)(de)規劃，減少供電(dian)(dian)(dian)(dian)(dian)點的(de)(de)設(she)置數量(liang)(liang)。

　　8.發熱(re)溫度低：在同樣的電流下，同截面的銅(tong)芯(xin)電線電纜的發熱(re)量比鋁芯(xin)電纜小得多，使得運(yun)行(xing)更(geng)安全。

　　9.能耗低：由于(yu)銅的電(dian)阻率(lv)低，相比鋁電(dian)纜(lan)而(er)言，銅芯電(dian)線電(dian)纜(lan)的電(dian)能損耗低，這是(shi)顯(xian)而(er)易見的。這有(you)利于(yu)提高(gao)發電(dian)利用率(lv)和保護環境。

　　10.抗氧化(hua)，耐腐蝕(shi)：銅(tong)芯(xin)(xin)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)的(de)連接(jie)(jie)頭性能穩定，不會由于氧化(hua)而發(fa)(fa)(fa)生(sheng)事故(gu)(gu)。鋁芯(xin)(xin)電(dian)(dian)(dian)纜(lan)的(de)接(jie)(jie)頭不穩定時常會由于氧化(hua)使接(jie)(jie)觸電(dian)(dian)(dian)阻增大，發(fa)(fa)(fa)熱而發(fa)(fa)(fa)生(sheng)事故(gu)(gu)。因(yin)此，事故(gu)(gu)率(lv)比銅(tong)芯(xin)(xin)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)大得(de)多。