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不(bu)合格電線電纜的危害(hai)

電線電纜是用于傳輸電力(li)、傳輸信息和(he)實現電磁(ci)能量(liang)轉換(huan)的一(yi)大類電工產(chan)品。在抽查過程中，發現了大量(liang)的不合格產(chan)品，這(zhe)些劣質產(chan)品給電力(li)系統正常運行埋下諸多隱患。

1、標(biao)(biao)志不合(he)格(ge)的(de)電(dian)線電(dian)纜。標(biao)(biao)志是(shi)(shi)電(dian)線電(dian)纜使用識別(bie)產品(pin)基本信息的(de)主要(yao)(yao)途(tu)徑，根據(ju)標(biao)(biao)準(zhun)規(gui)定標(biao)(biao)志的(de)主要(yao)(yao)內容是(shi)(shi)：產品(pin)型號、規(gui)格(ge)、標(biao)(biao)準(zhun)號、廠名(ming)、產地等在一定的(de)標(biao)(biao)示間(jian)距內，當標(biao)(biao)志不合(he)格(ge)時，會造(zao)成施工人員識別(bie)錯誤，嚴(yan)重(zhong)時會引(yin)發電(dian)氣事故。

2、結構尺寸不合格的(de)電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)。結構尺寸的(de)主要(yao)問題是護套厚(hou)(hou)度(du)(du)，絕(jue)緣厚(hou)(hou)度(du)(du)，當(dang)電(dian)(dian)(dian)纜(lan)(lan)的(de)護套和(he)絕(jue)緣厚(hou)(hou)度(du)(du)不達標時(shi)，致使電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)耐電(dian)(dian)(dian)氣強(qiang)度(du)(du)會嚴(yan)重降低，導(dao)致電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)的(de)使用壽命(ming)縮(suo)短，嚴(yan)重時(shi)可導(dao)致電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)被擊穿，絕(jue)緣（護套）層起不到正常保護作用，從而(er)發生電(dian)(dian)(dian)氣短路和(he)火災等現象。

3、護套(tao)式絕緣老化前的(de)(de)(de)抗張(zhang)強(qiang)度(du)(du)、伸(shen)長(chang)率合(he)(he)格的(de)(de)(de)電(dian)(dian)線(xian)電(dian)(dian)纜(lan)。絕緣護套(tao)老化前的(de)(de)(de)抗張(zhang)強(qiang)度(du)(du)、伸(shen)長(chang)率不(bu)(bu)合(he)(he)格直接大(da)大(da)縮短電(dian)(dian)線(xian)電(dian)(dian)纜(lan)的(de)(de)(de)工作用壽命，而且在施工或在長(chang)時(shi)間(jian)通電(dian)(dian)且溫(wen)度(du)(du)較高的(de)(de)(de)環境中，極易(yi)出現(xian)絕緣體斷(duan)裂，致使帶(dai)電(dian)(dian)導體裸露，發生(sheng)(sheng)能觸電(dian)(dian)式短路危險(xian)。其(qi)不(bu)(bu)合(he)(he)格的(de)(de)(de)主要(yao)原(yuan)因是使用了再生(sheng)(sheng)料生(sheng)(sheng)產，以降低產品(pin)成(cheng)本(ben)，二是不(bu)(bu)具備生(sheng)(sheng)產資格小型企業。

4、導體(ti)(ti)(ti)電(dian)(dian)(dian)(dian)(dian)阻不合格(ge)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)線。導體(ti)(ti)(ti)電(dian)(dian)(dian)(dian)(dian)阻主要(yao)是考核電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜(lan)的(de)(de)(de)導體(ti)(ti)(ti)材料以及(ji)截(jie)面(mian)是否符合的(de)(de)(de)重要(yao)指(zhi)標(biao)。當導體(ti)(ti)(ti)電(dian)(dian)(dian)(dian)(dian)阻超標(biao)時，就增大(da)了(le)電(dian)(dian)(dian)(dian)(dian)流在(zai)線路上通過時的(de)(de)(de)損耗，加劇了(le)電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜(lan)的(de)(de)(de)發熱。導體(ti)(ti)(ti)電(dian)(dian)(dian)(dian)(dian)阻不合格(ge)的(de)(de)(de)原因(yin)，主要(yao)進企業為了(le)降低(di)成本，將占原材料成本80%的(de)(de)(de)銅材縮水(shui)，要(yao)么(me)降低(di)導體(ti)(ti)(ti)的(de)(de)(de)截(jie)面(mian)積，要(yao)么(me)使用(yong)含(han)雜質過高的(de)(de)(de)再生銅，這樣(yang)致(zhi)使電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜(lan)的(de)(de)(de)導體(ti)(ti)(ti)電(dian)(dian)(dian)(dian)(dian)阻嚴重超標(biao)，在(zai)使用(yong)過程(cheng)中(zhong)除易(yi)引(yin)發火災，還(huan)會(hui)加速包覆在(zai)電(dian)(dian)(dian)(dian)(dian)線外的(de)(de)(de)絕緣層的(de)(de)(de)老化。

在購買電線電纜的過程中，消費者應注意以下幾個事

第一、要觀察電線的外觀。合(he)格產品的絕緣(yuan)（護套）層柔(rou)軟、有韌(ren)性(xing)和伸縮性(xing)、表(biao)面層緊(jin)密、光(guang)滑、無(wu)粗糙感(gan)。如果包裹電線的塑料很容易被剝去，則(ze)存在塑料強度不夠的問題。

第二、要看電(dian)線的(de)截面。合(he)格產品的(de)銅(tong)芯(xin)或(huo)鋁芯(xin)表面應該具有金屬光澤，表面發黑的(de)銅(tong)或(huo)表面發白的(de)鋁說明已被氧化。

第(di)三、在購(gou)買電(dian)線時應(ying)注意查看質量合(he)格證書。如果電(dian)線的(de)質量合(he)格，那么其電(dian)線質量應(ying)該(gai)也(ye)受過(guo)檢驗，不會有(you)太大(da)的(de)問題。

沈陽凱鵬電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)制(zhi)造(zao)有限公司隸屬(shu)凱鵬集團下屬(shu)子公司，專門(men)從事電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)研(yan)發、生產制(zhi)造(zao)，是(shi)全國頗具實力的沈陽電(dian)(dian)(dian)纜(lan)廠家(jia)，主營(ying)產品：電(dian)(dian)(dian)力電(dian)(dian)(dian)纜(lan)、控制(zhi)電(dian)(dian)(dian)纜(lan)、橡套電(dian)(dian)(dian)纜(lan)、電(dian)(dian)(dian)氣裝(zhuang)備用(yong)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)、電(dian)(dian)(dian)子計(ji)算機電(dian)(dian)(dian)纜(lan)、BTTZ電(dian)(dian)(dian)纜(lan)、YTTW電(dian)(dian)(dian)纜(lan)等，以及(ji)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)代(dai)加工。小編每(mei)天會在公司官網發布電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)價(jia)格(ge)表(biao)，及(ji)時更新銅價(jia)以及(ji)電(dian)(dian)(dian)纜(lan)廠報價(jia)信息。更多(duo)有關電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)信息可(ke)點(dian)擊公司官網szbowen.cn