電(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)纜作為電(dian)(dian)力傳輸(shu)的(de)(de)主(zhu)要載(zai)體，電(dian)(dian)纜，廣泛應用于(yu)電(dian)(dian)器裝(zhuang)備、照明線(xian)(xian)(xian)路、家用電(dian)(dian)器等方(fang)面(mian)，其質(zhi)量(liang)的(de)(de)好壞直接影(ying)響到工程質(zhi)量(liang)及消費者(zhe)的(de)(de)生命(ming)財產安全。在市場上(shang)(shang)有很多電(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)纜品種，要根(gen)據自己的(de)(de)用電(dian)(dian)負荷來采用合適的(de)(de)電(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)纜。鑒(jian)別電(dian)(dian)纜的(de)(de)好方(fang)法：1、看(kan)包裝(zhuang)，電(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)纜批發廠家，的(de)(de)電(dian)(dian)纜往(wang)往(wang)做都比較好、整齊，手拿上(shang)(shang)去有質(zhi)量(liang)感。2、要打開包裝(zhuang)看(kan)一下里(li)面(mian)的(de)(de)電(dian)(dian)線(xian)(xian)(xian)了(le)，的(de)(de)電(dian)(dian)線(xian)(xian)(xian)1。

電(dian)力(li)電(dian)纜(lan)(lan)(lan)除進(jin)行交接試(shi)驗和(he)預防性(xing)試(shi)驗外，在施工過程中(zhong)還應(ying)(ying)(ying)進(jin)行絕緣試(shi)驗，以鑒別(bie)檢查(cha)施工各環節的(de)電(dian)纜(lan)(lan)(lan)質(zhi)量和(he)工藝質(zhi)量。電(dian)力(li)電(dian)纜(lan)(lan)(lan)供電(dian)以其安全且可靠、有(you)利于美化城市與(yu)廠礦布局等優點，高低壓(ya)電(dian)纜(lan)(lan)(lan)，獲得了越(yue)來越(yue)廣泛的(de)應(ying)(ying)(ying)用。電(dian)纜(lan)(lan)(lan)應(ying)(ying)(ying)排列整齊(qi)，電(dian)纜(lan)(lan)(lan)的(de)固定(ding)和(he)彎曲半(ban)徑(jing)應(ying)(ying)(ying)符合設(she)計(ji)圖(tu)紙和(he)有(you)關規(gui)定(ding)，電(dian)統(tong)應(ying)(ying)(ying)無(wu)機械損傷，標(biao)志牌應(ying)(ying)(ying)裝設(she)齊(qi)全、正(zheng)確、清晰。油(you)(you)浸(jin)紙絕緣電(dian)纜(lan)(lan)(lan)及(ji)充油(you)(you)電(dian)纜(lan)(lan)(lan)的(de)終端、中(zhong)間接頭應(ying)(ying)(ying)無(wu)滲漏(lou)油(you)(you)現象。

中高壓電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)芯(xin)(xin)(xin)數(shu)的選(xuan)擇對(dui)于(yu)3~35kV三相(xiang)供電(dian)(dian)(dian)(dian)回(hui)(hui)(hui)(hui)路(lu)(lu)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)芯(xin)(xin)(xin)數(shu)的選(xuan)擇。當工作電(dian)(dian)(dian)(dian)流(liu)較大的回(hui)(hui)(hui)(hui)路(lu)(lu)或(huo)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)敷設于(yu)水下時，每(mei)(mei)回(hui)(hui)(hui)(hui)路(lu)(lu)可(ke)選(xuan)用(yong)(yong)3根(gen)單(dan)(dan)(dan)芯(xin)(xin)(xin)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)；除(chu)上(shang)述情況外，應選(xuan)用(yong)(yong)3芯(xin)(xin)(xin)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)，3芯(xin)(xin)(xin)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)可(ke)選(xuan)用(yong)(yong)普通統(tong)包型(xing)，電(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)廠，也可(ke)選(xuan)用(yong)(yong)3根(gen)單(dan)(dan)(dan)芯(xin)(xin)(xin)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)絞合構造型(xing)。對(dui)110kV三相(xiang)供電(dian)(dian)(dian)(dian)回(hui)(hui)(hui)(hui)路(lu)(lu)，除(chu)敷設于(yu)湖、海(hai)水下等場所(suo)且電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)截面不大時可(ke)選(xuan)用(yong)(yong)3芯(xin)(xin)(xin)外，每(mei)(mei)回(hui)(hui)(hui)(hui)路(lu)(lu)可(ke)選(xuan)用(yong)(yong)3根(gen)單(dan)(dan)(dan)芯(xin)(xin)(xin)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)。對(dui)110kV以上(shang)三相(xiang)供電(dian)(dian)(dian)(dian)回(hui)(hui)(hui)(hui)路(lu)(lu)，每(mei)(mei)回(hui)(hui)(hui)(hui)路(lu)(lu)應選(xuan)用(yong)(yong)3根(gen)單(dan)(dan)(dan)芯(xin)(xin)(xin)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)。電(dian)(dian)(dian)(dian)氣(qi)化鐵路(lu)(lu)等高壓交(jiao)流(liu)單(dan)(dan)(dan)相(xiang)供電(dian)(dian)(dian)(dian)回(hui)(hui)(hui)(hui)路(lu)(lu)，應選(xuan)用(yong)(yong)2芯(xin)(xin)(xin)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)或(huo)每(mei)(mei)回(hui)(hui)(hui)(hui)選(xuan)用(yong)(yong)2根(gen)單(dan)(dan)(dan)芯(xin)(xin)(xin)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)。高壓直流(liu)輸電(dian)(dian)(dian)(dian)系統(tong)，宜(yi)選(xuan)用(yong)(yong)單(dan)(dan)(dan)芯(xin)(xin)(xin)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)；在湖、海(hai)等水下敷設時，也可(ke)選(xuan)用(yong)(yong)同軸型(xing)2芯(xin)(xin)(xin)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)。