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不合格電(dian)線電(dian)纜(lan)的危害

電(dian)線電(dian)纜是(shi)用于傳輸(shu)電(dian)力(li)、傳輸(shu)信息和實現(xian)電(dian)磁能量轉(zhuan)換的(de)一(yi)大(da)(da)類電(dian)工產品(pin)。在抽查過程中，發現(xian)了大(da)(da)量的(de)不(bu)合格產品(pin)，這些劣質產品(pin)給(gei)電(dian)力(li)系統正(zheng)常運(yun)行埋(mai)下諸多隱患。

1、標(biao)志不合(he)格(ge)的(de)電(dian)線(xian)電(dian)纜。標(biao)志是電(dian)線(xian)電(dian)纜使用識(shi)別(bie)產品(pin)基本信(xin)息的(de)主要途徑，根(gen)據(ju)標(biao)準(zhun)規(gui)定標(biao)志的(de)主要內容是：產品(pin)型(xing)號、規(gui)格(ge)、標(biao)準(zhun)號、廠名、產地等在(zai)一定的(de)標(biao)示間距內，當標(biao)志不合(he)格(ge)時，會造成施工人員識(shi)別(bie)錯誤(wu)，嚴重時會引(yin)發(fa)電(dian)氣事故。

2、結構(gou)尺寸不合格的電(dian)(dian)線(xian)電(dian)(dian)纜。結構(gou)尺寸的主要問題是(shi)護套厚度，絕緣厚度，當(dang)電(dian)(dian)纜的護套和絕緣厚度不達標時，致使電(dian)(dian)線(xian)電(dian)(dian)纜耐電(dian)(dian)氣強度會嚴重降低(di)，導致電(dian)(dian)線(xian)電(dian)(dian)纜的使用(yong)壽(shou)命縮短，嚴重時可(ke)導致電(dian)(dian)線(xian)電(dian)(dian)纜被擊穿，絕緣（護套）層(ceng)起不到(dao)正常保護作用(yong)，從而(er)發(fa)生(sheng)電(dian)(dian)氣短路和火災等現象。

3、護(hu)套式(shi)絕緣(yuan)老化(hua)前(qian)的抗張強(qiang)度、伸(shen)長率(lv)合(he)格(ge)的電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)(lan)。絕緣(yuan)護(hu)套老化(hua)前(qian)的抗張強(qiang)度、伸(shen)長率(lv)不(bu)合(he)格(ge)直接大大縮短電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)(lan)的工(gong)作用壽(shou)命，而且在施工(gong)或(huo)在長時間通(tong)電(dian)(dian)(dian)且溫度較高的環(huan)境(jing)中，極易出(chu)現絕緣(yuan)體(ti)斷(duan)裂(lie)，致使帶電(dian)(dian)(dian)導體(ti)裸露，發生能觸(chu)電(dian)(dian)(dian)式(shi)短路(lu)危(wei)險。其不(bu)合(he)格(ge)的主要(yao)原因是使用了(le)再生料生產(chan)(chan)，以降(jiang)低產(chan)(chan)品成本，二是不(bu)具備生產(chan)(chan)資(zi)格(ge)小(xiao)型企業。

4、導體(ti)電(dian)阻(zu)不合(he)格(ge)的(de)(de)(de)電(dian)線(xian)。導體(ti)電(dian)阻(zu)主要(yao)是考(kao)核(he)電(dian)線(xian)電(dian)纜的(de)(de)(de)導體(ti)材(cai)料(liao)以及(ji)截(jie)(jie)面是否符合(he)的(de)(de)(de)重要(yao)指標(biao)。當導體(ti)電(dian)阻(zu)超(chao)標(biao)時(shi)，就增大了(le)電(dian)流在線(xian)路(lu)上通(tong)過時(shi)的(de)(de)(de)損耗，加劇了(le)電(dian)線(xian)電(dian)纜的(de)(de)(de)發熱。導體(ti)電(dian)阻(zu)不合(he)格(ge)的(de)(de)(de)原(yuan)因(yin)，主要(yao)進企業為了(le)降低(di)成本(ben)，將(jiang)占原(yuan)材(cai)料(liao)成本(ben)80%的(de)(de)(de)銅材(cai)縮水，要(yao)么(me)降低(di)導體(ti)的(de)(de)(de)截(jie)(jie)面積，要(yao)么(me)使用含雜質過高的(de)(de)(de)再生銅，這(zhe)樣致(zhi)使電(dian)線(xian)電(dian)纜的(de)(de)(de)導體(ti)電(dian)阻(zu)嚴重超(chao)標(biao)，在使用過程中(zhong)除(chu)易引發火災(zai)，還會加速(su)包覆在電(dian)線(xian)外的(de)(de)(de)絕緣層的(de)(de)(de)老化。

在購買(mai)電線電纜的過程中，消(xiao)費者應注意以(yi)下幾個事

第一、要觀察(cha)電(dian)線的外觀。合格產(chan)品的絕緣（護(hu)套）層柔(rou)軟(ruan)、有韌性(xing)和伸(shen)縮性(xing)、表面層緊密、光滑(hua)、無(wu)粗糙感。如果包裹(guo)電(dian)線的塑料(liao)很容(rong)易被(bei)剝(bo)去，則存在塑料(liao)強(qiang)度不夠的問題。

第二、要看電(dian)線的截面(mian)(mian)。合格(ge)產品的銅芯或(huo)鋁芯表面(mian)(mian)應(ying)該具有金屬光澤，表面(mian)(mian)發(fa)(fa)黑的銅或(huo)表面(mian)(mian)發(fa)(fa)白的鋁說(shuo)明已(yi)被氧化。

第(di)三、在購買電(dian)線時應注意查(cha)看(kan)質量合(he)格證書。如果電(dian)線的質量合(he)格，那么(me)其電(dian)線質量應該也受過(guo)檢驗，不會有太(tai)大的問(wen)題。

沈陽(yang)凱(kai)鵬(peng)電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)制造有限公(gong)(gong)司(si)隸屬凱(kai)鵬(peng)集團下屬子公(gong)(gong)司(si)，專門(men)從事電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)研發(fa)、生產制造，是全國頗具實力的沈陽(yang)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)廠家，主營產品：電(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)、控制電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)、橡套電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)、電(dian)(dian)(dian)(dian)(dian)(dian)氣裝備用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)、電(dian)(dian)(dian)(dian)(dian)(dian)子計算機電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)、BTTZ電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)、YTTW電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)等(deng)，以(yi)及電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)代(dai)加工。小編每天會在公(gong)(gong)司(si)官網發(fa)布電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)價(jia)格表，及時更新銅(tong)價(jia)以(yi)及電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)廠報(bao)價(jia)信息(xi)。更多有關電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)信息(xi)可點擊(ji)公(gong)(gong)司(si)官網szbowen.cn