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不(bu)合格電線電纜的危害

電(dian)線電(dian)纜是用(yong)于傳輸電(dian)力(li)(li)、傳輸信息和實(shi)現(xian)電(dian)磁能量轉換(huan)的一大(da)類電(dian)工(gong)產(chan)品(pin)。在(zai)抽查過(guo)程(cheng)中，發(fa)現(xian)了大(da)量的不合格(ge)產(chan)品(pin)，這些(xie)劣質(zhi)產(chan)品(pin)給電(dian)力(li)(li)系統(tong)正(zheng)常運行(xing)埋下諸(zhu)多隱患。

1、標(biao)志不合(he)格的電線電纜。標(biao)志是(shi)電線電纜使用(yong)識(shi)別產品基本信息的主要途徑(jing)，根據標(biao)準(zhun)規(gui)定(ding)標(biao)志的主要內容是(shi)：產品型(xing)號、規(gui)格、標(biao)準(zhun)號、廠名、產地等在一定(ding)的標(biao)示間距內，當標(biao)志不合(he)格時(shi)，會(hui)造成施工人員識(shi)別錯(cuo)誤，嚴重時(shi)會(hui)引發電氣事故。

2、結構尺(chi)寸(cun)不(bu)合格的電(dian)(dian)線(xian)電(dian)(dian)纜。結構尺(chi)寸(cun)的主要問題是護(hu)(hu)套(tao)厚(hou)度(du)，絕緣厚(hou)度(du)，當電(dian)(dian)纜的護(hu)(hu)套(tao)和(he)絕緣厚(hou)度(du)不(bu)達標時，致使電(dian)(dian)線(xian)電(dian)(dian)纜耐(nai)電(dian)(dian)氣強度(du)會嚴重(zhong)降(jiang)低，導致電(dian)(dian)線(xian)電(dian)(dian)纜的使用壽命縮短(duan)，嚴重(zhong)時可導致電(dian)(dian)線(xian)電(dian)(dian)纜被擊穿，絕緣（護(hu)(hu)套(tao)）層起不(bu)到正常(chang)保護(hu)(hu)作用，從而發生(sheng)電(dian)(dian)氣短(duan)路和(he)火災等現象。

3、護套(tao)式絕(jue)(jue)緣老化前的抗張(zhang)強度(du)、伸長(chang)率合格(ge)的電線電纜(lan)。絕(jue)(jue)緣護套(tao)老化前的抗張(zhang)強度(du)、伸長(chang)率不合格(ge)直接大大縮短電線電纜(lan)的工作用壽(shou)命，而且在(zai)施工或在(zai)長(chang)時間通電且溫度(du)較(jiao)高的環境中，極易出現(xian)絕(jue)(jue)緣體(ti)(ti)斷裂(lie)，致(zhi)使帶電導體(ti)(ti)裸露(lu)，發生(sheng)能觸(chu)電式短路危險(xian)。其不合格(ge)的主(zhu)要原因(yin)是使用了(le)再生(sheng)料生(sheng)產(chan)(chan)，以降低產(chan)(chan)品成本，二是不具(ju)備生(sheng)產(chan)(chan)資格(ge)小(xiao)型企業。

4、導(dao)體(ti)(ti)電(dian)(dian)(dian)阻不(bu)合(he)(he)格的(de)電(dian)(dian)(dian)線(xian)(xian)。導(dao)體(ti)(ti)電(dian)(dian)(dian)阻主要(yao)(yao)是考(kao)核電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜的(de)導(dao)體(ti)(ti)材(cai)料以及(ji)截(jie)面(mian)是否符合(he)(he)的(de)重要(yao)(yao)指標(biao)。當導(dao)體(ti)(ti)電(dian)(dian)(dian)阻超(chao)標(biao)時，就增大了電(dian)(dian)(dian)流在(zai)線(xian)(xian)路上通(tong)過時的(de)損耗，加劇了電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜的(de)發熱。導(dao)體(ti)(ti)電(dian)(dian)(dian)阻不(bu)合(he)(he)格的(de)原因，主要(yao)(yao)進企業(ye)為了降低(di)成本，將占原材(cai)料成本80%的(de)銅(tong)材(cai)縮水，要(yao)(yao)么降低(di)導(dao)體(ti)(ti)的(de)截(jie)面(mian)積，要(yao)(yao)么使用含(han)雜質過高的(de)再生銅(tong)，這樣(yang)致使電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜的(de)導(dao)體(ti)(ti)電(dian)(dian)(dian)阻嚴重超(chao)標(biao)，在(zai)使用過程中除(chu)易(yi)引發火災(zai)，還會加速包覆在(zai)電(dian)(dian)(dian)線(xian)(xian)外的(de)絕緣層(ceng)的(de)老化。

在購買電(dian)線(xian)電(dian)纜的過程中，消(xiao)費者(zhe)應注意(yi)以(yi)下幾個(ge)事

第一、要觀(guan)察電線的外觀(guan)。合格產(chan)品的絕緣（護(hu)套）層柔軟、有韌(ren)性和伸縮(suo)性、表面層緊密、光滑、無粗糙感。如果(guo)包裹電線的塑(su)料很容易(yi)被剝去，則存在塑(su)料強(qiang)度不夠的問題。

第(di)二、要(yao)看電線的截(jie)面(mian)(mian)。合格產品(pin)的銅(tong)芯或(huo)鋁(lv)芯表(biao)面(mian)(mian)應該具有金(jin)屬光澤，表(biao)面(mian)(mian)發黑的銅(tong)或(huo)表(biao)面(mian)(mian)發白的鋁(lv)說明(ming)已被氧化。

第三、在購買(mai)電(dian)線時應(ying)注(zhu)意查看質(zhi)量合(he)(he)格(ge)證書。如果電(dian)線的質(zhi)量合(he)(he)格(ge)，那(nei)么其電(dian)線質(zhi)量應(ying)該也受過檢驗，不會有太(tai)大的問(wen)題。

沈陽(yang)凱鵬(peng)電(dian)(dian)線(xian)(xian)電(dian)(dian)纜(lan)(lan)(lan)制(zhi)(zhi)(zhi)造(zao)有(you)限公(gong)司隸屬(shu)凱鵬(peng)集團下屬(shu)子(zi)公(gong)司，專門從(cong)事電(dian)(dian)線(xian)(xian)電(dian)(dian)纜(lan)(lan)(lan)研發(fa)、生產(chan)制(zhi)(zhi)(zhi)造(zao)，是全國頗具(ju)實力(li)的沈陽(yang)電(dian)(dian)纜(lan)(lan)(lan)廠(chang)家，主營產(chan)品(pin)：電(dian)(dian)力(li)電(dian)(dian)纜(lan)(lan)(lan)、控制(zhi)(zhi)(zhi)電(dian)(dian)纜(lan)(lan)(lan)、橡套(tao)電(dian)(dian)纜(lan)(lan)(lan)、電(dian)(dian)氣(qi)裝備(bei)用(yong)電(dian)(dian)線(xian)(xian)電(dian)(dian)纜(lan)(lan)(lan)、電(dian)(dian)子(zi)計算機電(dian)(dian)纜(lan)(lan)(lan)、BTTZ電(dian)(dian)纜(lan)(lan)(lan)、YTTW電(dian)(dian)纜(lan)(lan)(lan)等，以(yi)及(ji)電(dian)(dian)線(xian)(xian)電(dian)(dian)纜(lan)(lan)(lan)代加工。小編每天(tian)會(hui)在(zai)公(gong)司官網發(fa)布(bu)電(dian)(dian)線(xian)(xian)電(dian)(dian)纜(lan)(lan)(lan)價格表(biao)，及(ji)時更新(xin)銅價以(yi)及(ji)電(dian)(dian)纜(lan)(lan)(lan)廠(chang)報價信息(xi)。更多有(you)關電(dian)(dian)線(xian)(xian)電(dian)(dian)纜(lan)(lan)(lan)信息(xi)可點擊公(gong)司官網szbowen.cn