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長期(qi)連(lian)續工作溫度(du)125度(du)、135度(du)、150度(du)、180度(du)、200度(du)、250度(du)及250度(du)以(yi)上的才叫 耐高(gao)溫電(dian)(dian)線(xian)電(dian)(dian)纜(lan)(lan)(lan) ，目前常用的有輻照交聯聚(ju)烯烴(jing)、硅(gui)橡膠(jiao)、氟樹脂、聚(ju)酰亞胺、云母、氧化(hua)鎂等電(dian)(dian)線(xian)電(dian)(dian)纜(lan)(lan)(lan)。耐熱電(dian)(dian)線(xian)電(dian)(dian)纜(lan)(lan)(lan)和高(gao)溫電(dian)(dian)線(xian)電(dian)(dian)纜(lan)(lan)(lan)需要滿足二(er)種需求。*種是電(dian)(dian)線(xian)電(dian)(dian)纜(lan)(lan)(lan)環境溫度(du)較

　　長期連續工作溫度125度、135度、150度、180度、200度、250度及250度以上的才叫耐高溫電線電纜，目前常用的(de)(de)有輻照(zhao)交(jiao)聯聚烯(xi)烴、硅橡膠、氟樹脂、聚酰亞胺、云母(mu)、氧化鎂(mei)等(deng)電(dian)(dian)線電(dian)(dian)纜(lan)。耐熱電(dian)(dian)線電(dian)(dian)纜(lan)和高(gao)溫電(dian)(dian)線電(dian)(dian)纜(lan)需要滿足二種需求。*種是電(dian)(dian)線電(dian)(dian)纜(lan)環境溫度較高(gao)，電(dian)(dian)纜(lan)在長期在高(gao)溫下能夠正(zheng)常傳(chuan)輸(shu)信號或電(dian)(dian)能;另一(yi)種是電(dian)(dian)力傳(chuan)輸(shu)電(dian)(dian)纜(lan)，主要是增(zeng)加截流能力為主要目的(de)(de)。

　　普(pu)通電(dian)(dian)纜(lan)(lan)在高(gao)溫時易產生(sheng)絕緣老化和(he)焦燒現象，使(shi)用(yong)電(dian)(dian)纜(lan)(lan)失去性(xing)能(neng)(neng)，受(shou)破壞而不能(neng)(neng)使(shi)用(yong)。高(gao)溫電(dian)(dian)纜(lan)(lan)在額(e)定高(gao)溫下能(neng)(neng)夠正常穩(wen)定地工作，信號或(huo)電(dian)(dian)能(neng)(neng)傳輸性(xing)能(neng)(neng)不受(shou)影響，還(huan)能(neng)(neng)保(bao)證電(dian)(dian)纜(lan)(lan)具有較(jiao)長的使(shi)用(yong)壽命。這類功能(neng)(neng)電(dian)(dian)纜(lan)(lan)是高(gao)溫電(dian)(dian)纜(lan)(lan)zui常見zui多的一種，使(shi)用(yong)特性(xing)也zui易于理解的。

　　增載(zai)型高溫(wen)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)，主要是為了保(bao)證載(zai)流(liu)(liu)的(de)(de)(de)前題下減(jian)小電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)外徑(jing)和重(zhong)量，向輕(qing)量化發(fa)展(zhan)的(de)(de)(de)。一(yi)(yi)般(ban)來說(shuo)，電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)的(de)(de)(de)工作(zuo)溫(wen)度越高，同(tong)(tong)樣截(jie)面(mian)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)通過的(de)(de)(de)載(zai)流(liu)(liu)量越大(da)。象飛機和汽車等場合，減(jian)輕(qing)重(zhong)量的(de)(de)(de)意義相當(dang)大(da)，利(li)用高溫(wen)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)大(da)大(da)減(jian)少(shao)了截(jie)面(mian)。工作(zuo)溫(wen)度從(cong)90℃升到(dao)155℃，則(ze)載(zai)流(liu)(liu)能力上升50%，同(tong)(tong)樣載(zai)流(liu)(liu)量下，電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)重(zhong)量要減(jian)輕(qing)一(yi)(yi)半，成本也有(you)所降低(di)。當(dang)然高截(jie)流(liu)(liu)的(de)(de)(de)同(tong)(tong)時，大(da)多數絕緣材(cai)料的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)能損耗也會有(you)所增加。所以，可以很確定的(de)(de)(de)說(shuo)，耐高溫(wen)電(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)的(de)(de)(de)成本要比一(yi)(yi)般(ban)電(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)的(de)(de)(de)成本高的(de)(de)(de)多。