的優勢：

　　1.電阻率低：鋁芯電纜的電阻(zu)率比銅芯電線電纜(lan)約高(gao)1.68倍。

　　2.延展性(xing)好：銅合金的延展率(lv)為(wei)20~40%,電工(gong)用銅的延展率(lv)在30%以上，而(er)鋁合金僅為(wei)18%。

　　3.強度高：常(chang)溫下的允許應力，銅比鋁分別高出(chu)7~28%。特別是高溫下的應力，兩(liang)者相差(cha)更是甚遠(yuan)。

　　4.抗疲勞：鋁材反復折彎易斷裂，銅(tong)則不易。彈性指標(biao)方(fang)面，銅(tong)芯(xin)電(dian)線(xian)電(dian)纜的(de)銅(tong)也比鋁高(gao)約1.7~1.8倍。

　　5.穩定性好，耐腐蝕：銅(tong)芯抗氧化，耐腐蝕，而鋁芯容(rong)易受氧化和腐蝕。

　　6.載流量大：由于電阻率低，同(tong)截面(mian)的(de)銅(tong)芯(xin)電線電纜(lan)要比鋁芯(xin)電纜(lan)允(yun)許的(de)載流量(能夠通(tong)過的(de)大電流)高30%左右(you)

　　7.電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)損失低：由(you)于(yu)銅(tong)芯(xin)電(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)纜的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)阻率(lv)低，在同(tong)(tong)截面(mian)流過(guo)相同(tong)(tong)電(dian)(dian)(dian)(dian)(dian)(dian)流的(de)(de)情況下。銅(tong)芯(xin)電(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)纜的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)降小(xiao)。因此，同(tong)(tong)樣的(de)(de)輸電(dian)(dian)(dian)(dian)(dian)(dian)距離，能(neng)保證較高的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)質量；或者說，在允許的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)降條件下，銅(tong)芯(xin)電(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)纜輸電(dian)(dian)(dian)(dian)(dian)(dian)能(neng)達到(dao)較遠的(de)(de)距離，即供電(dian)(dian)(dian)(dian)(dian)(dian)覆蓋面(mian)積大，有利于(yu)網絡的(de)(de)規劃，減少供電(dian)(dian)(dian)(dian)(dian)(dian)點的(de)(de)設置數(shu)量。

　　8.發(fa)熱(re)溫度低(di)：在同(tong)樣的電(dian)(dian)(dian)流下，同(tong)截(jie)面的銅芯電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)的發(fa)熱(re)量(liang)比(bi)鋁芯電(dian)(dian)(dian)纜(lan)小得多，使得運行(xing)更安全。

　　9.能耗低：由(you)于銅的(de)電(dian)阻率(lv)低，相比(bi)鋁(lv)電(dian)纜而(er)言，銅芯電(dian)線電(dian)纜的(de)電(dian)能損耗低，這是顯(xian)而(er)易見的(de)。這有利(li)于提高發電(dian)利(li)用率(lv)和保護環(huan)境。

　　10.抗氧(yang)化，耐腐蝕：銅芯(xin)電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)的連接(jie)頭性能穩定(ding)，不會由(you)于(yu)氧(yang)化而發(fa)生事故(gu)。鋁芯(xin)電(dian)(dian)(dian)(dian)(dian)纜(lan)的接(jie)頭不穩定(ding)時常會由(you)于(yu)氧(yang)化使接(jie)觸電(dian)(dian)(dian)(dian)(dian)阻(zu)增大(da)(da)，發(fa)熱而發(fa)生事故(gu)。因此，事故(gu)率比銅芯(xin)電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)大(da)(da)得(de)多。