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不(bu)合格電線電纜的危害(hai)

電(dian)線電(dian)纜是(shi)用于傳輸(shu)電(dian)力(li)、傳輸(shu)信(xin)息和實現(xian)電(dian)磁能量轉換的一大類電(dian)工產品(pin)。在抽查過程中，發(fa)現(xian)了大量的不(bu)合格產品(pin)，這些(xie)劣質產品(pin)給電(dian)力(li)系(xi)統正常運行埋下諸多(duo)隱患(huan)。

1、標志(zhi)不合格的電(dian)(dian)線電(dian)(dian)纜。標志(zhi)是(shi)電(dian)(dian)線電(dian)(dian)纜使(shi)用識(shi)別(bie)產品(pin)基本信息的主要途徑，根據(ju)標準規定標志(zhi)的主要內(nei)容是(shi)：產品(pin)型號、規格、標準號、廠名、產地等在一定的標示間距內(nei)，當標志(zhi)不合格時(shi)(shi)，會(hui)造成施(shi)工(gong)人員識(shi)別(bie)錯(cuo)誤，嚴重(zhong)時(shi)(shi)會(hui)引發電(dian)(dian)氣(qi)事(shi)故。

2、結(jie)構尺寸不(bu)合(he)格的(de)(de)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜。結(jie)構尺寸的(de)(de)主要問題是護(hu)套厚(hou)(hou)度，絕(jue)緣厚(hou)(hou)度，當電(dian)(dian)(dian)纜的(de)(de)護(hu)套和(he)(he)絕(jue)緣厚(hou)(hou)度不(bu)達(da)標時，致(zhi)(zhi)使電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜耐電(dian)(dian)(dian)氣(qi)強度會嚴重降低，導(dao)(dao)致(zhi)(zhi)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜的(de)(de)使用(yong)壽命縮(suo)短(duan)，嚴重時可導(dao)(dao)致(zhi)(zhi)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜被(bei)擊穿，絕(jue)緣（護(hu)套）層起不(bu)到正(zheng)常保護(hu)作(zuo)用(yong)，從而(er)發生電(dian)(dian)(dian)氣(qi)短(duan)路和(he)(he)火災等(deng)現象。

3、護(hu)套(tao)式絕緣(yuan)(yuan)老化(hua)前的(de)(de)抗(kang)張強度、伸長(chang)率合格(ge)的(de)(de)電(dian)線(xian)電(dian)纜。絕緣(yuan)(yuan)護(hu)套(tao)老化(hua)前的(de)(de)抗(kang)張強度、伸長(chang)率不合格(ge)直接大(da)(da)大(da)(da)縮短電(dian)線(xian)電(dian)纜的(de)(de)工作用壽命(ming)，而且(qie)在(zai)施工或在(zai)長(chang)時間(jian)通電(dian)且(qie)溫度較高的(de)(de)環境(jing)中，極易出現絕緣(yuan)(yuan)體(ti)斷裂，致使(shi)帶電(dian)導體(ti)裸露，發生(sheng)能觸電(dian)式短路危險(xian)。其不合格(ge)的(de)(de)主要原因是使(shi)用了再生(sheng)料(liao)生(sheng)產(chan)，以降低產(chan)品成(cheng)本，二是不具備生(sheng)產(chan)資格(ge)小(xiao)型企業。

4、導(dao)體(ti)(ti)電(dian)(dian)(dian)(dian)阻(zu)(zu)不合格的(de)(de)電(dian)(dian)(dian)(dian)線。導(dao)體(ti)(ti)電(dian)(dian)(dian)(dian)阻(zu)(zu)主(zhu)要(yao)是(shi)考核電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜的(de)(de)導(dao)體(ti)(ti)材(cai)(cai)料以及截面(mian)是(shi)否符(fu)合的(de)(de)重要(yao)指標。當導(dao)體(ti)(ti)電(dian)(dian)(dian)(dian)阻(zu)(zu)超(chao)標時(shi)，就增大(da)了(le)電(dian)(dian)(dian)(dian)流(liu)在線路(lu)上通過時(shi)的(de)(de)損耗(hao)，加劇(ju)了(le)電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜的(de)(de)發熱。導(dao)體(ti)(ti)電(dian)(dian)(dian)(dian)阻(zu)(zu)不合格的(de)(de)原因(yin)，主(zhu)要(yao)進企業為了(le)降低(di)成(cheng)本，將占(zhan)原材(cai)(cai)料成(cheng)本80%的(de)(de)銅材(cai)(cai)縮水，要(yao)么降低(di)導(dao)體(ti)(ti)的(de)(de)截面(mian)積(ji)，要(yao)么使用(yong)含雜質(zhi)過高的(de)(de)再生銅，這樣致使電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜的(de)(de)導(dao)體(ti)(ti)電(dian)(dian)(dian)(dian)阻(zu)(zu)嚴重超(chao)標，在使用(yong)過程中除易引發火災，還會加速包覆在電(dian)(dian)(dian)(dian)線外的(de)(de)絕緣層的(de)(de)老化。

在購買電(dian)線電(dian)纜的過(guo)程中，消費(fei)者應(ying)注意(yi)以下幾(ji)個事

第一、要觀察(cha)電線的外觀。合(he)格產品的絕緣(yuan)（護套）層(ceng)柔軟、有韌性和伸縮(suo)性、表面層(ceng)緊密、光滑、無粗糙感。如果(guo)包裹電線的塑料(liao)很(hen)容(rong)易被剝(bo)去，則存(cun)在塑料(liao)強度不夠的問題。

第二、要看電線(xian)的截(jie)面。合(he)格產品的銅芯或(huo)鋁芯表(biao)面應(ying)該具有金屬光澤，表(biao)面發(fa)黑(hei)的銅或(huo)表(biao)面發(fa)白的鋁說明(ming)已被氧(yang)化。

第(di)三、在購買電(dian)線時應(ying)注意查(cha)看(kan)質(zhi)量合(he)格(ge)證書。如果(guo)電(dian)線的質(zhi)量合(he)格(ge)，那(nei)么其電(dian)線質(zhi)量應(ying)該也(ye)受(shou)過檢(jian)驗，不(bu)會有太大的問題(ti)。

沈陽凱(kai)鵬電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜制(zhi)造(zao)(zao)有限(xian)公司(si)隸屬凱(kai)鵬集(ji)團下屬子公司(si)，專(zhuan)門從事電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜研發(fa)、生產制(zhi)造(zao)(zao)，是全國(guo)頗(po)具(ju)實力的沈陽電(dian)(dian)(dian)纜廠家，主營產品(pin)：電(dian)(dian)(dian)力電(dian)(dian)(dian)纜、控制(zhi)電(dian)(dian)(dian)纜、橡(xiang)套電(dian)(dian)(dian)纜、電(dian)(dian)(dian)氣裝備用(yong)電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜、電(dian)(dian)(dian)子計算機電(dian)(dian)(dian)纜、BTTZ電(dian)(dian)(dian)纜、YTTW電(dian)(dian)(dian)纜等，以及(ji)電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜代加工。小編(bian)每天會在公司(si)官網發(fa)布電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜價(jia)格表，及(ji)時更新銅價(jia)以及(ji)電(dian)(dian)(dian)纜廠報(bao)價(jia)信(xin)息。更多有關(guan)電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜信(xin)息可(ke)點擊公司(si)官網szbowen.cn