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電(dian)線電(dian)纜(lan)，按(an)國際有(you)關規定其定義(yi)為(wei)“用以傳輸電(dian)(磁)能(neng)信息和(he)實現電(dian)磁能(neng)轉換的(de)線材產(chan)品(pin)(pin)”。通常將(jiang)結構(gou)簡單無外護(hu)(hu)套、外徑(jing)較小的(de)產(chan)品(pin)(pin)稱為(wei)電(dian)線，將(jiang)結構(gou)復雜、有(you)堅(jian)固密封外護(hu)(hu)套、外徑(jing)較大的(de)產(chan)品(pin)(pin)稱為(wei)電(dian)纜(lan)。

電(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)纜產品是電(dian)(dian)(dian)(dian)(dian)(dian)氣(qi)化、信息化社會中必要的(de)配套產品，廣泛應(ying)用于發電(dian)(dian)(dian)(dian)(dian)(dian)、輸配電(dian)(dian)(dian)(dian)(dian)(dian)及(ji)終端用電(dian)(dian)(dian)(dian)(dian)(dian)等電(dian)(dian)(dian)(dian)(dian)(dian)力生產、傳輸及(ji)應(ying)用的(de)各個環(huan)節(jie)，與國民經濟(ji)的(de)發展及(ji)人們(men)日常生活密切(qie)相關。電(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)纜按(an)照(zhao)用途劃分(fen)可以分(fen)為五(wu)大類：電(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)纜、通信電(dian)(dian)(dian)(dian)(dian)(dian)纜、電(dian)(dian)(dian)(dian)(dian)(dian)氣(qi)裝備用電(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)纜、裸電(dian)(dian)(dian)(dian)(dian)(dian)線以及(ji)繞(rao)組線。