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不(bu)合(he)格電(dian)線電(dian)纜的危害

電線(xian)電纜(lan)是用于傳(chuan)輸(shu)電力、傳(chuan)輸(shu)信息和實現(xian)(xian)電磁能量轉換的一大(da)類(lei)電工產(chan)品(pin)。在(zai)抽查(cha)過程中，發現(xian)(xian)了大(da)量的不(bu)合格產(chan)品(pin)，這(zhe)些劣質產(chan)品(pin)給電力系統正(zheng)常運(yun)行(xing)埋(mai)下諸多隱(yin)患。

1、標志(zhi)不(bu)合格(ge)的電線電纜。標志(zhi)是電線電纜使用識別產(chan)(chan)品基本信息的主(zhu)要途徑，根據(ju)標準規(gui)定標志(zhi)的主(zhu)要內(nei)容是：產(chan)(chan)品型號(hao)、規(gui)格(ge)、標準號(hao)、廠名、產(chan)(chan)地(di)等在一定的標示間距內(nei)，當標志(zhi)不(bu)合格(ge)時，會(hui)造成施工人員(yuan)識別錯誤，嚴重時會(hui)引發(fa)電氣事故。

2、結(jie)構尺(chi)寸不合(he)格的(de)電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)。結(jie)構尺(chi)寸的(de)主要問題是護(hu)套厚度(du)，絕緣厚度(du)，當電(dian)(dian)(dian)纜(lan)的(de)護(hu)套和絕緣厚度(du)不達標時，致(zhi)使電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)耐(nai)電(dian)(dian)(dian)氣(qi)強度(du)會嚴重降(jiang)低，導(dao)致(zhi)電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)的(de)使用壽(shou)命(ming)縮(suo)短(duan)，嚴重時可(ke)導(dao)致(zhi)電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)被擊穿，絕緣（護(hu)套）層起不到正(zheng)常保護(hu)作用，從而(er)發生電(dian)(dian)(dian)氣(qi)短(duan)路和火災等現象。

3、護套式(shi)絕(jue)(jue)緣老(lao)化前的(de)抗張強度(du)、伸長率合格的(de)電(dian)線電(dian)纜。絕(jue)(jue)緣護套老(lao)化前的(de)抗張強度(du)、伸長率不合格直接大大縮短電(dian)線電(dian)纜的(de)工(gong)作用(yong)壽命，而且在施工(gong)或在長時間通電(dian)且溫(wen)度(du)較(jiao)高的(de)環境中，極易出現絕(jue)(jue)緣體斷裂，致使(shi)帶電(dian)導體裸(luo)露，發(fa)生(sheng)能觸電(dian)式(shi)短路危險。其不合格的(de)主要(yao)原因是(shi)使(shi)用(yong)了(le)再生(sheng)料(liao)生(sheng)產，以降低產品成(cheng)本(ben)，二是(shi)不具備(bei)生(sheng)產資(zi)格小型(xing)企業。

4、導(dao)體(ti)(ti)電(dian)阻(zu)不(bu)合(he)格的(de)(de)(de)電(dian)線。導(dao)體(ti)(ti)電(dian)阻(zu)主要(yao)是考核電(dian)線電(dian)纜(lan)的(de)(de)(de)導(dao)體(ti)(ti)材料(liao)以及截面是否符(fu)合(he)的(de)(de)(de)重要(yao)指標。當導(dao)體(ti)(ti)電(dian)阻(zu)超標時(shi)，就增大了(le)電(dian)流在(zai)線路上通過時(shi)的(de)(de)(de)損耗，加(jia)劇了(le)電(dian)線電(dian)纜(lan)的(de)(de)(de)發(fa)熱。導(dao)體(ti)(ti)電(dian)阻(zu)不(bu)合(he)格的(de)(de)(de)原因，主要(yao)進企業為了(le)降低成(cheng)本(ben)，將占原材料(liao)成(cheng)本(ben)80%的(de)(de)(de)銅材縮水，要(yao)么降低導(dao)體(ti)(ti)的(de)(de)(de)截面積，要(yao)么使用含雜質(zhi)過高的(de)(de)(de)再(zai)生銅，這樣致(zhi)使電(dian)線電(dian)纜(lan)的(de)(de)(de)導(dao)體(ti)(ti)電(dian)阻(zu)嚴重超標，在(zai)使用過程(cheng)中除易引發(fa)火災，還會加(jia)速包覆在(zai)電(dian)線外的(de)(de)(de)絕緣(yuan)層的(de)(de)(de)老(lao)化。

在購買(mai)電(dian)線電(dian)纜(lan)的過程中，消費者應(ying)注意(yi)以下幾個事

第一、要觀察電線的(de)外觀。合(he)格產品的(de)絕(jue)緣（護套）層(ceng)柔軟(ruan)、有韌(ren)性和伸縮性、表面(mian)層(ceng)緊密、光滑、無粗(cu)糙感。如果包裹電線的(de)塑料很容(rong)易(yi)被剝去，則存在塑料強度不夠(gou)的(de)問(wen)題。

第二、要看(kan)電線的(de)截面。合格產品的(de)銅芯(xin)(xin)或(huo)(huo)鋁(lv)芯(xin)(xin)表面應該(gai)具有金(jin)屬光(guang)澤，表面發(fa)黑的(de)銅或(huo)(huo)表面發(fa)白的(de)鋁(lv)說明已被氧化。

第(di)三(san)、在購(gou)買電線時應注意查看質(zhi)量(liang)合格證書。如果電線的(de)質(zhi)量(liang)合格，那(nei)么其電線質(zhi)量(liang)應該(gai)也受過檢驗，不會有太大的(de)問(wen)題。

沈陽凱(kai)鵬(peng)(peng)電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)制(zhi)造有(you)限公(gong)司隸(li)屬(shu)凱(kai)鵬(peng)(peng)集(ji)團下屬(shu)子(zi)公(gong)司，專門從(cong)事電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)研(yan)發、生產制(zhi)造，是全(quan)國頗具實力的沈陽電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)廠(chang)家(jia)，主營產品：電(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)、控制(zhi)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)氣裝備用電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)、電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)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，以及(ji)電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)代加(jia)工。小編每天會在(zai)公(gong)司官(guan)網(wang)發布電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)價格表(biao)，及(ji)時更新銅價以及(ji)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)廠(chang)報(bao)價信(xin)息。更多有(you)關電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)信(xin)息可點擊公(gong)司官(guan)網(wang)szbowen.cn