1、資料的(de)差異：電(dian)(dian)(dian)(dian)(dian)線(xian)用于(yu)承載電(dian)(dian)(dian)(dian)(dian)流的(de)導電(dian)(dian)(dian)(dian)(dian)金(jin)屬(shu)線(xian)材(cai)。有實心的(de)﹑絞合的(de)或(huo)箔片(pian)織(zhi)造的(de)等各種形式。按絕緣情況分為裸(luo)電(dian)(dian)(dian)(dian)(dian)線(xian)和絕緣電(dian)(dian)(dian)(dian)(dian)線(xian)兩大類。電(dian)(dian)(dian)(dian)(dian)纜由一根或(huo)多根彼此絕緣的(de)導電(dian)(dian)(dian)(dian)(dian)線(xian)心置于(yu)密封護(hu)套(tao)中構成的(de)絕緣導線(xian)。其(qi)外(wai)可加維護(hu)覆蓋層，電(dian)(dian)(dian)(dian)(dian)線(xian)與電(dian)(dian)(dian)(dian)(dian)纜的(de)差異在于(yu)電(dian)(dian)(dian)(dian)(dian)線(xian)的(de)尺度通(tong)常(chang)較小，布局較為簡略(lve)，但有時(shi)也將電(dian)(dian)(dian)(dian)(dian)纜歸入廣(guang)義(yi)的(de)電(dian)(dian)(dian)(dian)(dian)線(xian)之列(lie)。

2、用(yong)(yong)(yong)處的差異(yi)：裸電(dian)(dian)(dian)線(xian)不包任何(he)絕緣或維護層的電(dian)(dian)(dian)線(xian)。除作(zuo)(zuo)為傳輸電(dian)(dian)(dian)能(neng)和信息的導線(xian)外(wai)，還可用(yong)(yong)(yong)于制作(zuo)(zuo)電(dian)(dian)(dian)機(ji)﹑電(dian)(dian)(dian)器(qi)的構件和連(lian)接線(xian)。通(tong)常(chang)用(yong)(yong)(yong)銅﹑鋁(lv)﹑銅合金﹑鋁(lv)合金。此外(wai)，還有各種適用(yong)(yong)(yong)于特種需求(qiu)的絕緣電(dian)(dian)(dian)線(xian)，如汽車用(yong)(yong)(yong)低壓電(dian)(dian)(dian)線(xian)﹑汽車用(yong)(yong)(yong)高壓點前方(fang)﹑電(dian)(dian)(dian)機(ji)電(dian)(dian)(dian)器(qi)引接線(xian)﹑航空導線(xian)﹑抵償導線(xian)等(deng)。 電(dian)(dian)(dian)纜(lan)(lan)(lan)用(yong)(yong)(yong)于傳輸﹑分配電(dian)(dian)(dian)能(neng)或傳送電(dian)(dian)(dian)信號。 電(dian)(dian)(dian)纜(lan)(lan)(lan)按(an)其用(yong)(yong)(yong)處可分為電(dian)(dian)(dian)力電(dian)(dian)(dian)纜(lan)(lan)(lan)﹑通(tong)訊電(dian)(dian)(dian)纜(lan)(lan)(lan)和操(cao)控(kong)電(dian)(dian)(dian)纜(lan)(lan)(lan)等(deng)。

3、布局(ju)的差異：電(dian)(dian)力電(dian)(dian)纜與通常電(dian)(dian)線的不同主要是電(dian)(dian)纜尺(chi)度較(jiao)大(da)，布局(ju)較(jiao)雜(za)亂。電(dian)(dian)纜主要由以下4部分(fen)群組成。導電(dian)(dian)線心:用高電(dian)(dian)導率資料(liao)制成。絕緣(yuan)層﹕用作電(dian)(dian)纜的絕緣(yuan)資料(liao)應當具有高的絕緣(yuan)電(dian)(dian)阻(zu)，高的擊(ji)穿(chuan)電(dian)(dian)場強度。電(dian)(dian)纜常以絕緣(yuan)資料(liao)分(fen)類。

除了上面的(de)(de)(de)(de)差異，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)還具有顯著(zhu)的(de)(de)(de)(de)優(you)勢。與架空(kong)(kong)線比較，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)(de)(de)(de)長處是線間絕緣間隔小，占地(di)空(kong)(kong)間小，地(di)下敷設(she)而不(bu)占地(di)上以上空(kong)(kong)間，不(bu)受周(zhou)圍環境污染影響，送電(dian)(dian)(dian)(dian)(dian)(dian)(dian)可靠性高，對人身(shen)安全和(he)周(zhou)圍環境攪擾小。因而，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)多應用(yong)于生齒(chi)密布和(he)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)網稠密區及交通擁堵繁忙處。關于現代化建設(she)有著(zhu)不(bu)行無(wu)視的(de)(de)(de)(de)效(xiao)果。再簡略的(de)(de)(de)(de)說：電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)通常(chang)指(zhi)的(de)(de)(de)(de)是室外架空(kong)(kong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)或室外架空(kong)(kong)裸線電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)通常(chang)指(zhi)的(de)(de)(de)(de)是是橡套電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)或暫時(shi)用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)。