的優勢：

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

　　2.延展(zhan)性(xing)好(hao)：銅合金的(de)延展(zhan)率為20~40%,電(dian)工(gong)用銅的(de)延展(zhan)率在30%以上(shang)，而鋁合金僅為18%。

　　3.強度高(gao)：常(chang)溫下的(de)允許應(ying)力，銅比鋁分別(bie)高(gao)出7~28%。特別(bie)是高(gao)溫下的(de)應(ying)力，兩者相差更是甚遠。

　　4.抗疲(pi)勞：鋁材反(fan)復折(zhe)彎(wan)易(yi)斷(duan)裂，銅(tong)則不(bu)易(yi)。彈性指標方面，銅(tong)芯電線電纜(lan)的銅(tong)也比鋁高(gao)約(yue)1.7~1.8倍。

　　5.穩定性好，耐腐(fu)蝕：銅芯(xin)(xin)抗(kang)氧化(hua)，耐腐(fu)蝕，而鋁芯(xin)(xin)容易受(shou)氧化(hua)和腐(fu)蝕。

　　6.載(zai)流量大：由(you)于電(dian)(dian)阻(zu)率低，同截面的(de)銅芯(xin)電(dian)(dian)線(xian)電(dian)(dian)纜要比鋁芯(xin)電(dian)(dian)纜允許的(de)載(zai)流量(能夠通過的(de)大電(dian)(dian)流)高(gao)30%左(zuo)右(you)

　　7.電(dian)(dian)(dian)(dian)壓損(sun)失(shi)低：由(you)于(yu)銅芯(xin)電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜的(de)(de)(de)電(dian)(dian)(dian)(dian)阻率低，在同截面(mian)流過相同電(dian)(dian)(dian)(dian)流的(de)(de)(de)情況下。銅芯(xin)電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜的(de)(de)(de)電(dian)(dian)(dian)(dian)壓降(jiang)小。因此(ci)，同樣的(de)(de)(de)輸電(dian)(dian)(dian)(dian)距(ju)離，能保(bao)證較高的(de)(de)(de)電(dian)(dian)(dian)(dian)壓質量；或者說，在允許(xu)的(de)(de)(de)電(dian)(dian)(dian)(dian)壓降(jiang)條件(jian)下，銅芯(xin)電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜輸電(dian)(dian)(dian)(dian)能達到較遠(yuan)的(de)(de)(de)距(ju)離，即供電(dian)(dian)(dian)(dian)覆蓋面(mian)積大(da)，有利于(yu)網絡的(de)(de)(de)規劃(hua)，減少供電(dian)(dian)(dian)(dian)點的(de)(de)(de)設置數量。

　　8.發熱(re)溫度低：在同樣(yang)的(de)電(dian)流下，同截面的(de)銅芯(xin)電(dian)線電(dian)纜(lan)的(de)發熱(re)量(liang)比鋁芯(xin)電(dian)纜(lan)小得多，使得運(yun)行更安全。

　　9.能耗低(di)(di)：由于銅的電阻(zu)率低(di)(di)，相比鋁(lv)電纜(lan)(lan)而(er)言，銅芯電線電纜(lan)(lan)的電能損耗低(di)(di)，這是顯(xian)而(er)易見的。這有利(li)于提高(gao)發電利(li)用率和保護環境。

　　10.抗氧(yang)(yang)化，耐腐蝕：銅(tong)(tong)芯(xin)電(dian)線電(dian)纜(lan)(lan)的(de)連(lian)接頭性能(neng)穩定(ding)，不會由(you)(you)于氧(yang)(yang)化而發生(sheng)事故(gu)(gu)。鋁芯(xin)電(dian)纜(lan)(lan)的(de)接頭不穩定(ding)時常會由(you)(you)于氧(yang)(yang)化使接觸電(dian)阻增大(da)(da)，發熱而發生(sheng)事故(gu)(gu)。因此，事故(gu)(gu)率比(bi)銅(tong)(tong)芯(xin)電(dian)線電(dian)纜(lan)(lan)大(da)(da)得多(duo)。