導(dao)(dao)體(ti)(ti)(ti)(ti)是指(zhi)能(neng)(neng)傳導(dao)(dao)電流的(de)(de)(de)(de)物體(ti)(ti)(ti)(ti)，又稱(cheng)為導(dao)(dao)電線(xian)(xian)(xian)(xian)(xian)芯。用(yong)作(zuo)電線(xian)(xian)(xian)(xian)(xian)電纜導(dao)(dao)體(ti)(ti)(ti)(ti)的(de)(de)(de)(de)材料，首先(xian)要(yao)有(you)良好的(de)(de)(de)(de)導(dao)(dao)電性能(neng)(neng)，即電阻要(yao)小，以減少電流在線(xian)(xian)(xian)(xian)(xian)路上(shang)(shang)(shang)的(de)(de)(de)(de)損(sun)(sun)耗。損(sun)(sun)耗與(yu)電流大小、電阻大小有(you)直接(jie)關系，并表現(xian)在導(dao)(dao)體(ti)(ti)(ti)(ti)的(de)(de)(de)(de)發熱上(shang)(shang)(shang)。扇(shan)形(xing)芯中心(xin)線(xian)(xian)(xian)(xian)(xian)上(shang)(shang)(shang)導(dao)(dao)線(xian)(xian)(xian)(xian)(xian)的(de)(de)(de)(de)直徑一般較大，處在其(qi)兩(liang)側的(de)(de)(de)(de)導(dao)(dao)線(xian)(xian)(xian)(xian)(xian)應能(neng)(neng)沿中心(xin)線(xian)(xian)(xian)(xian)(xian)上(shang)(shang)(shang)導(dao)(dao)線(xian)(xian)(xian)(xian)(xian)滑動而不改變扇(shan)形(xing)芯形(xing)狀(zhuang)，這(zhe)一規(gui)則(ze)稱(cheng)為移滑規(gui)則(ze)，否則(ze)，當(dang)扇(shan)形(xing)芯絞合(he)成(cheng)纜時(shi)，扇(shan)形(xing)可能(neng)(neng)被破壞而損(sun)(sun)傷絕(jue)緣(yuan)。絕(jue)緣(yuan)是將絕(jue)緣(yuan)材料按其(qi)耐受電壓程度的(de)(de)(de)(de)要(yao)求，以不同的(de)(de)(de)(de)厚度包復在導(dao)(dao)體(ti)(ti)(ti)(ti)外面而成(cheng)，起著使帶電體(ti)(ti)(ti)(ti)與(yu)其(qi)他部分(fen)隔絕(jue)的(de)(de)(de)(de)作(zuo)用(yong)。

WDZ電(dian)(dian)(dian)纜(lan)比WDZN電(dian)(dian)(dian)纜(lan)價格略低(di)10~20%。這個看每家電(dian)(dian)(dian)纜(lan)廠工藝和(he)成本價格不一，綠寶電(dian)(dian)(dian)纜(lan)為您提供，安全的電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)。成品電(dian)(dian)(dian)壓試(shi)驗及絕緣線(xian)芯(xin)間電(dian)(dian)(dian)壓試(shi)驗不光(guang)要(yao)求電(dian)(dian)(dian)纜(lan)有足夠(gou)的絕緣能(neng)力，還要(yao)求絕緣或(huo)護套材料(liao)均(jun)勻無雜質、厚度足夠(gou)均(jun)勻，表面(mian)不能(neng)有看不見的、等，否則就(jiu)會造(zao)成耐壓試(shi)驗時局部擊穿。電(dian)(dian)(dian)纜(lan)就(jiu)是(shi)利用(yong)導(dao)體(ti)(ti)來(lai)傳導(dao)電(dian)(dian)(dian)流(liu)的，因(yin)而電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)的規格都以導(dao)體(ti)(ti)的截面(mian)表示。電(dian)(dian)(dian)力電(dian)(dian)(dian)纜(lan)的導(dao)體(ti)(ti)，可(ke)以制成整根實心的，或(huo)是(shi)由多根單線(xian)絞合而成，形狀(zhuang)可(ke)以是(shi)圓形的和(he)扇形的結(jie)構。

絕(jue)緣(yuan)(yuan)(yuan)層(ceng)的(de)(de)材料(liao)必須具有(you)良好的(de)(de)電(dian)氣(qi)絕(jue)緣(yuan)(yuan)(yuan)性能，主(zhu)(zhu)要表現為(wei)(wei)承受電(dian)壓(ya)的(de)(de)大(da)小。一般地講，同一質量的(de)(de)絕(jue)緣(yuan)(yuan)(yuan)層(ceng)愈(yu)厚，耐電(dian)壓(ya)也越高(gao)。電(dian)力(li)電(dian)纜主(zhu)(zhu)要有(you)導體(ti)直(zhi)流電(dian)阻、絕(jue)緣(yuan)(yuan)(yuan)電(dian)阻、成(cheng)品電(dian)壓(ya)試驗及絕(jue)緣(yuan)(yuan)(yuan)線(xian)芯間電(dian)壓(ya)試驗，每項(xiang)都很(hen)重(zhong)要，電(dian)力(li)電(dian)纜品牌，導體(ti)電(dian)阻直(zhi)接反映了電(dian)纜的(de)(de)電(dian)傳輸(shu)性能，直(zhi)接影(ying)響電(dian)纜在(zai)通(tong)電(dian)運行中的(de)(de)溫度(du)、壽命、電(dian)壓(ya)降、以及運行安全。交聯(lian)絕(jue)緣(yuan)(yuan)(yuan)的(de)(de)品種雖多，但主(zhu)(zhu)要分(fen)為(wei)(wei)物理交聯(lian)和化(hua)學(xue)(xue)交聯(lian)兩(liang)大(da)類(lei)。物理交聯(lian)也稱為(wei)(wei)輻(fu)照交聯(lian)，一般適用于絕(jue)緣(yuan)(yuan)(yuan)厚度(du)較薄的(de)(de)低(di)壓(ya)電(dian)纜。化(hua)學(xue)(xue)交聯(lian)方法(fa)比高(gao)能輻(fu)射交聯(lian)工藝簡單，操作安全，輻(fu)照交聯(lian)聚乙烯的(de)(de)交聯(lian)度(du)約(yue)為(wei)(wei)70％，而化(hua)學(xue)(xue)交聯(lian)可達70～90％。