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不合格電線(xian)電纜的危害

電線電纜是用于傳輸(shu)電力、傳輸(shu)信息(xi)和實現(xian)電磁能量轉(zhuan)換的一大(da)類電工產品(pin)。在抽查過(guo)程中(zhong)，發(fa)現(xian)了(le)大(da)量的不合格(ge)產品(pin)，這些劣(lie)質產品(pin)給電力系(xi)統(tong)正常(chang)運行埋下諸多隱患。

1、標志(zhi)不(bu)合格的(de)電(dian)線(xian)電(dian)纜。標志(zhi)是電(dian)線(xian)電(dian)纜使用識別產(chan)品基本信息的(de)主要(yao)途徑(jing)，根(gen)據標準規(gui)定標志(zhi)的(de)主要(yao)內(nei)容是：產(chan)品型號、規(gui)格、標準號、廠名、產(chan)地等(deng)在一定的(de)標示間距內(nei)，當標志(zhi)不(bu)合格時，會造成施(shi)工人員(yuan)識別錯誤，嚴重時會引(yin)發(fa)電(dian)氣事故。

2、結構(gou)(gou)尺(chi)寸不合格的電(dian)(dian)線(xian)(xian)電(dian)(dian)纜(lan)(lan)。結構(gou)(gou)尺(chi)寸的主(zhu)要問題是護(hu)套厚(hou)(hou)度(du)，絕(jue)(jue)緣厚(hou)(hou)度(du)，當電(dian)(dian)纜(lan)(lan)的護(hu)套和絕(jue)(jue)緣厚(hou)(hou)度(du)不達標時，致(zhi)使(shi)電(dian)(dian)線(xian)(xian)電(dian)(dian)纜(lan)(lan)耐(nai)電(dian)(dian)氣強度(du)會(hui)嚴(yan)重(zhong)降低，導致(zhi)電(dian)(dian)線(xian)(xian)電(dian)(dian)纜(lan)(lan)的使(shi)用壽命(ming)縮短，嚴(yan)重(zhong)時可(ke)導致(zhi)電(dian)(dian)線(xian)(xian)電(dian)(dian)纜(lan)(lan)被擊穿，絕(jue)(jue)緣（護(hu)套）層起(qi)不到正常保護(hu)作用，從而發生電(dian)(dian)氣短路和火(huo)災等(deng)現象。

3、護套(tao)式絕(jue)緣老化前的(de)抗張強(qiang)度(du)、伸(shen)長(chang)率(lv)合(he)格(ge)(ge)的(de)電(dian)線(xian)電(dian)纜。絕(jue)緣護套(tao)老化前的(de)抗張強(qiang)度(du)、伸(shen)長(chang)率(lv)不合(he)格(ge)(ge)直接大大縮短電(dian)線(xian)電(dian)纜的(de)工(gong)作用壽(shou)命，而且(qie)在施(shi)工(gong)或(huo)在長(chang)時間通電(dian)且(qie)溫度(du)較高的(de)環境(jing)中(zhong)，極易(yi)出現絕(jue)緣體斷裂，致使帶電(dian)導體裸(luo)露，發生(sheng)能觸電(dian)式短路危險(xian)。其不合(he)格(ge)(ge)的(de)主要原因是使用了再生(sheng)料生(sheng)產(chan)，以降低(di)產(chan)品成本，二是不具備生(sheng)產(chan)資格(ge)(ge)小型企業。

4、導體(ti)(ti)電(dian)阻(zu)不合格(ge)(ge)的(de)(de)(de)電(dian)線。導體(ti)(ti)電(dian)阻(zu)主要(yao)是考核(he)電(dian)線電(dian)纜的(de)(de)(de)導體(ti)(ti)材(cai)(cai)料以(yi)及截(jie)面是否符合的(de)(de)(de)重要(yao)指(zhi)標。當(dang)導體(ti)(ti)電(dian)阻(zu)超標時，就(jiu)增大了電(dian)流在(zai)線路上通過時的(de)(de)(de)損耗，加劇(ju)了電(dian)線電(dian)纜的(de)(de)(de)發(fa)熱(re)。導體(ti)(ti)電(dian)阻(zu)不合格(ge)(ge)的(de)(de)(de)原因(yin)，主要(yao)進企業為(wei)了降低成本(ben)，將占原材(cai)(cai)料成本(ben)80%的(de)(de)(de)銅材(cai)(cai)縮水，要(yao)么降低導體(ti)(ti)的(de)(de)(de)截(jie)面積，要(yao)么使用含雜質(zhi)過高的(de)(de)(de)再(zai)生銅，這(zhe)樣致使電(dian)線電(dian)纜的(de)(de)(de)導體(ti)(ti)電(dian)阻(zu)嚴重超標，在(zai)使用過程中除易引發(fa)火災(zai)，還會(hui)加速包覆在(zai)電(dian)線外的(de)(de)(de)絕緣層的(de)(de)(de)老(lao)化。

在購(gou)買電線電纜的過程中，消費者應注意以下(xia)幾(ji)個事

第一、要觀(guan)察電(dian)線的(de)(de)外觀(guan)。合(he)格產(chan)品的(de)(de)絕緣（護套）層柔軟、有韌性和伸縮性、表面層緊(jin)密、光滑、無粗糙感。如果包裹(guo)電(dian)線的(de)(de)塑(su)料(liao)(liao)很容易被剝去，則(ze)存在塑(su)料(liao)(liao)強度不(bu)夠的(de)(de)問題。

第(di)二、要看電線的(de)(de)截面(mian)。合格(ge)產品(pin)的(de)(de)銅芯或鋁芯表面(mian)應該具有金屬(shu)光(guang)澤，表面(mian)發(fa)黑的(de)(de)銅或表面(mian)發(fa)白的(de)(de)鋁說明(ming)已被氧化。

第三、在(zai)購買電(dian)線時應(ying)注(zhu)意查看質量合(he)格證書(shu)。如(ru)果電(dian)線的質量合(he)格，那么其電(dian)線質量應(ying)該也受過檢驗，不會有太大的問題。

沈陽凱鵬電(dian)(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)制造有限公司(si)隸(li)屬凱鵬集團下屬子公司(si)，專(zhuan)門從事(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)研(yan)發、生產制造，是全國頗具(ju)實力的沈陽電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)廠(chang)家，主(zhu)營(ying)產品：電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、控制電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、橡套電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)氣裝備用電(dian)(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子計算機電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、BTTZ電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、YTTW電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)等，以(yi)及(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)代加工。小編每天會在公司(si)官(guan)網發布電(dian)(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)價(jia)格表，及(ji)時更新銅價(jia)以(yi)及(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)廠(chang)報價(jia)信(xin)息。更多有關電(dian)(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)信(xin)息可(ke)點(dian)擊公司(si)官(guan)網szbowen.cn