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不合(he)格(ge)電線電纜(lan)的危害

電線電纜是用(yong)于傳輸電力(li)、傳輸信息和實(shi)現電磁能量轉換的(de)一大(da)類電工產(chan)品(pin)(pin)。在抽(chou)查過程中，發現了大(da)量的(de)不合(he)格產(chan)品(pin)(pin)，這些(xie)劣(lie)質產(chan)品(pin)(pin)給電力(li)系統正常運行埋下諸多隱患。

1、標(biao)志不合格(ge)的(de)電(dian)線電(dian)纜(lan)。標(biao)志是電(dian)線電(dian)纜(lan)使用識別產(chan)品(pin)基本信息的(de)主要(yao)途徑(jing)，根據(ju)標(biao)準規定(ding)標(biao)志的(de)主要(yao)內容是：產(chan)品(pin)型號、規格(ge)、標(biao)準號、廠名、產(chan)地(di)等在一定(ding)的(de)標(biao)示(shi)間距內，當標(biao)志不合格(ge)時，會造成施工人員識別錯(cuo)誤，嚴重時會引(yin)發電(dian)氣事(shi)故。

2、結構(gou)(gou)尺寸不(bu)合格(ge)的(de)電(dian)(dian)線(xian)電(dian)(dian)纜(lan)(lan)(lan)。結構(gou)(gou)尺寸的(de)主(zhu)要(yao)問題是護(hu)套(tao)厚度，絕(jue)緣(yuan)厚度，當電(dian)(dian)纜(lan)(lan)(lan)的(de)護(hu)套(tao)和(he)絕(jue)緣(yuan)厚度不(bu)達標時，致使電(dian)(dian)線(xian)電(dian)(dian)纜(lan)(lan)(lan)耐電(dian)(dian)氣強度會(hui)嚴重(zhong)降低，導(dao)致電(dian)(dian)線(xian)電(dian)(dian)纜(lan)(lan)(lan)的(de)使用壽(shou)命縮短，嚴重(zhong)時可導(dao)致電(dian)(dian)線(xian)電(dian)(dian)纜(lan)(lan)(lan)被(bei)擊穿，絕(jue)緣(yuan)（護(hu)套(tao)）層起不(bu)到正常保護(hu)作用，從而發生(sheng)電(dian)(dian)氣短路和(he)火災等現象(xiang)。

3、護套(tao)式絕緣老化前(qian)的(de)(de)抗張強度、伸(shen)長(chang)率(lv)合格的(de)(de)電(dian)線電(dian)纜。絕緣護套(tao)老化前(qian)的(de)(de)抗張強度、伸(shen)長(chang)率(lv)不(bu)合格直接(jie)大大縮(suo)短(duan)電(dian)線電(dian)纜的(de)(de)工作用(yong)壽命，而且(qie)在(zai)施(shi)工或在(zai)長(chang)時(shi)間(jian)通電(dian)且(qie)溫(wen)度較(jiao)高的(de)(de)環境中，極易出現(xian)絕緣體斷裂(lie)，致(zhi)使(shi)帶電(dian)導體裸露，發生(sheng)能(neng)觸(chu)電(dian)式短(duan)路危險。其不(bu)合格的(de)(de)主要原(yuan)因是使(shi)用(yong)了(le)再生(sheng)料生(sheng)產(chan)，以降低(di)產(chan)品成本，二是不(bu)具備生(sheng)產(chan)資(zi)格小型企(qi)業。

4、導體(ti)(ti)電阻不(bu)合格的(de)(de)電線(xian)(xian)(xian)。導體(ti)(ti)電阻主(zhu)要是考核(he)電線(xian)(xian)(xian)電纜的(de)(de)導體(ti)(ti)材(cai)料(liao)以及截面是否符合的(de)(de)重要指標。當(dang)導體(ti)(ti)電阻超標時，就(jiu)增(zeng)大了(le)電流(liu)在(zai)線(xian)(xian)(xian)路上(shang)通(tong)過時的(de)(de)損耗，加劇了(le)電線(xian)(xian)(xian)電纜的(de)(de)發(fa)熱。導體(ti)(ti)電阻不(bu)合格的(de)(de)原因，主(zhu)要進(jin)企業為了(le)降低(di)成本，將占原材(cai)料(liao)成本80%的(de)(de)銅(tong)材(cai)縮水，要么降低(di)導體(ti)(ti)的(de)(de)截面積，要么使用含雜質過高的(de)(de)再生銅(tong)，這(zhe)樣致使電線(xian)(xian)(xian)電纜的(de)(de)導體(ti)(ti)電阻嚴重超標，在(zai)使用過程(cheng)中除易引發(fa)火災，還會加速包覆在(zai)電線(xian)(xian)(xian)外的(de)(de)絕緣層的(de)(de)老化。

在購買電線電纜的過程中，消費者(zhe)應注(zhu)意以(yi)下幾個(ge)事

第一、要觀察電線(xian)的(de)(de)(de)外(wai)觀。合格產品的(de)(de)(de)絕緣（護套(tao)）層(ceng)柔(rou)軟、有韌性(xing)和伸縮性(xing)、表(biao)面層(ceng)緊密(mi)、光滑(hua)、無粗糙(cao)感(gan)。如(ru)果包(bao)裹(guo)電線(xian)的(de)(de)(de)塑料(liao)(liao)很容易被剝去，則存在塑料(liao)(liao)強度不夠的(de)(de)(de)問題。

第二、要看電線的截面(mian)。合格產品的銅芯或鋁芯表(biao)面(mian)應該具有金(jin)屬光澤，表(biao)面(mian)發黑(hei)的銅或表(biao)面(mian)發白的鋁說明已(yi)被(bei)氧化。

第三、在購買電線時應注意查看(kan)質量(liang)合(he)格證書。如果電線的質量(liang)合(he)格，那么其電線質量(liang)應該也(ye)受(shou)過檢(jian)驗，不會有(you)太大的問題。

沈陽凱鵬電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)制造(zao)有限(xian)公司隸屬(shu)(shu)凱鵬集(ji)團下屬(shu)(shu)子(zi)公司，專門(men)從事(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)研發(fa)、生產制造(zao)，是全國頗具實力的沈陽電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)廠家，主營產品：電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、控(kong)制電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、橡套電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)氣裝備用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)計算機電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、BTTZ電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、YTTW電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)等，以及(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)代加工。小編每天會(hui)在公司官網發(fa)布電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)價格表，及(ji)時(shi)更新銅價以及(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)廠報價信(xin)息。更多有關電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)信(xin)息可點擊公司官網szbowen.cn