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不合格電線電纜(lan)的危害

電(dian)(dian)線電(dian)(dian)纜是用于傳(chuan)輸電(dian)(dian)力、傳(chuan)輸信息和實現(xian)電(dian)(dian)磁能量轉換的一(yi)大類電(dian)(dian)工產品(pin)。在抽查過程中，發(fa)現(xian)了大量的不合格產品(pin)，這些劣(lie)質(zhi)產品(pin)給電(dian)(dian)力系統正常運行埋下諸多隱患。

1、標(biao)(biao)(biao)志(zhi)(zhi)不合(he)格(ge)的電(dian)線電(dian)纜(lan)。標(biao)(biao)(biao)志(zhi)(zhi)是電(dian)線電(dian)纜(lan)使(shi)用識別產品基本信息的主要途徑(jing)，根據標(biao)(biao)(biao)準規定(ding)標(biao)(biao)(biao)志(zhi)(zhi)的主要內(nei)容(rong)是：產品型號、規格(ge)、標(biao)(biao)(biao)準號、廠名、產地等在(zai)一定(ding)的標(biao)(biao)(biao)示間(jian)距內(nei)，當(dang)標(biao)(biao)(biao)志(zhi)(zhi)不合(he)格(ge)時，會造成施工(gong)人員識別錯誤(wu)，嚴重時會引發電(dian)氣事故。

2、結(jie)構尺寸(cun)不合格的(de)電(dian)(dian)線電(dian)(dian)纜。結(jie)構尺寸(cun)的(de)主要(yao)問(wen)題是護套厚(hou)(hou)(hou)度(du)，絕(jue)緣(yuan)厚(hou)(hou)(hou)度(du)，當(dang)電(dian)(dian)纜的(de)護套和絕(jue)緣(yuan)厚(hou)(hou)(hou)度(du)不達(da)標時，致使電(dian)(dian)線電(dian)(dian)纜耐電(dian)(dian)氣(qi)(qi)強度(du)會(hui)嚴(yan)重降低，導(dao)致電(dian)(dian)線電(dian)(dian)纜的(de)使用壽(shou)命(ming)縮短，嚴(yan)重時可導(dao)致電(dian)(dian)線電(dian)(dian)纜被擊穿，絕(jue)緣(yuan)（護套）層起不到正(zheng)常保護作用，從(cong)而發生(sheng)電(dian)(dian)氣(qi)(qi)短路和火災等現象。

3、護套式絕緣老化(hua)(hua)前的抗張(zhang)強度(du)、伸(shen)長(chang)率合格的電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)。絕緣護套老化(hua)(hua)前的抗張(zhang)強度(du)、伸(shen)長(chang)率不合格直接大(da)大(da)縮(suo)短(duan)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)的工(gong)作用(yong)壽命，而(er)且在施工(gong)或在長(chang)時間通電(dian)(dian)(dian)且溫度(du)較高的環境中，極易(yi)出現(xian)絕緣體斷裂，致使(shi)帶電(dian)(dian)(dian)導體裸露，發生能觸電(dian)(dian)(dian)式短(duan)路危(wei)險。其(qi)不合格的主要原因是使(shi)用(yong)了(le)再(zai)生料生產，以降低產品(pin)成本(ben)，二是不具(ju)備(bei)生產資格小型企業。

4、導(dao)(dao)體(ti)電(dian)(dian)(dian)(dian)阻(zu)不(bu)合(he)格(ge)(ge)的(de)(de)電(dian)(dian)(dian)(dian)線。導(dao)(dao)體(ti)電(dian)(dian)(dian)(dian)阻(zu)主要(yao)是(shi)(shi)考核電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)的(de)(de)導(dao)(dao)體(ti)材料以及截(jie)面是(shi)(shi)否符合(he)的(de)(de)重要(yao)指(zhi)標。當導(dao)(dao)體(ti)電(dian)(dian)(dian)(dian)阻(zu)超標時，就增大了電(dian)(dian)(dian)(dian)流在線路上通過時的(de)(de)損耗，加劇了電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)的(de)(de)發(fa)熱。導(dao)(dao)體(ti)電(dian)(dian)(dian)(dian)阻(zu)不(bu)合(he)格(ge)(ge)的(de)(de)原因，主要(yao)進企業(ye)為了降低成本，將占(zhan)原材料成本80%的(de)(de)銅材縮(suo)水，要(yao)么降低導(dao)(dao)體(ti)的(de)(de)截(jie)面積(ji)，要(yao)么使(shi)用含雜質過高的(de)(de)再生銅，這樣致使(shi)電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)的(de)(de)導(dao)(dao)體(ti)電(dian)(dian)(dian)(dian)阻(zu)嚴重超標，在使(shi)用過程中除易引(yin)發(fa)火(huo)災(zai)，還會加速包覆在電(dian)(dian)(dian)(dian)線外的(de)(de)絕緣層(ceng)的(de)(de)老(lao)化。

在購買(mai)電線電纜的過程中，消費者應注意以(yi)下幾個(ge)事

第一、要觀(guan)察電(dian)線的外(wai)觀(guan)。合格(ge)產品的絕緣(yuan)（護套）層(ceng)柔軟(ruan)、有韌性和伸縮性、表面(mian)層(ceng)緊密(mi)、光滑、無(wu)粗糙感。如果包裹電(dian)線的塑料很容易被剝去，則存在塑料強度不夠的問題。

第二、要看電(dian)線的截面(mian)。合格(ge)產品(pin)的銅芯或鋁(lv)芯表面(mian)應(ying)該(gai)具有金屬光澤，表面(mian)發黑的銅或表面(mian)發白的鋁(lv)說明已被氧化。

第三(san)、在購買(mai)電(dian)線時(shi)應注意(yi)查看質量(liang)合格(ge)證(zheng)書(shu)。如果電(dian)線的(de)質量(liang)合格(ge)，那(nei)么(me)其電(dian)線質量(liang)應該也受過檢(jian)驗，不會有太(tai)大的(de)問題。

沈陽凱(kai)鵬電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)制造有限公(gong)司(si)(si)隸屬凱(kai)鵬集團下屬子(zi)公(gong)司(si)(si)，專門從事電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)研發、生產制造，是全國頗具實力的(de)沈陽電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)廠家，主(zhu)營產品：電(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、控制電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、橡套(tao)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)氣(qi)裝備用電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)子(zi)計算機電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、BTTZ電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、YTTW電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)等，以及電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)代加工。小編每天會在公(gong)司(si)(si)官(guan)網發布電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)價格表，及時更新銅價以及電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)廠報價信息(xi)。更多有關電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)信息(xi)可點擊公(gong)司(si)(si)官(guan)網szbowen.cn