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不合格電線電纜的(de)危害(hai)

電線電纜是用于傳輸(shu)電力、傳輸(shu)信息和實現電磁(ci)能量(liang)轉換的一(yi)大(da)類電工產(chan)品(pin)。在抽(chou)查過程中，發現了大(da)量(liang)的不合格產(chan)品(pin)，這些劣(lie)質產(chan)品(pin)給電力系統正常運(yun)行(xing)埋下諸多隱患。

1、標(biao)志不(bu)合(he)格的(de)電線(xian)電纜(lan)(lan)。標(biao)志是電線(xian)電纜(lan)(lan)使用識(shi)(shi)別產品基本(ben)信息的(de)主(zhu)要(yao)途徑，根據標(biao)準規定標(biao)志的(de)主(zhu)要(yao)內容(rong)是：產品型號(hao)(hao)、規格、標(biao)準號(hao)(hao)、廠名、產地等(deng)在一(yi)定的(de)標(biao)示(shi)間(jian)距內，當標(biao)志不(bu)合(he)格時(shi)(shi)，會(hui)造成施(shi)工人員識(shi)(shi)別錯誤，嚴重時(shi)(shi)會(hui)引(yin)發電氣(qi)事故。

2、結(jie)(jie)構(gou)尺寸不合格的(de)(de)電(dian)(dian)線電(dian)(dian)纜(lan)(lan)。結(jie)(jie)構(gou)尺寸的(de)(de)主(zhu)要問題是(shi)護(hu)套(tao)厚(hou)(hou)度(du)，絕緣(yuan)(yuan)厚(hou)(hou)度(du)，當電(dian)(dian)纜(lan)(lan)的(de)(de)護(hu)套(tao)和絕緣(yuan)(yuan)厚(hou)(hou)度(du)不達標時，致使電(dian)(dian)線電(dian)(dian)纜(lan)(lan)耐電(dian)(dian)氣強(qiang)度(du)會嚴重降低，導致電(dian)(dian)線電(dian)(dian)纜(lan)(lan)的(de)(de)使用壽命縮短(duan)，嚴重時可導致電(dian)(dian)線電(dian)(dian)纜(lan)(lan)被擊穿，絕緣(yuan)(yuan)（護(hu)套(tao)）層起不到(dao)正常保護(hu)作用，從而發(fa)生電(dian)(dian)氣短(duan)路和火災等(deng)現象。

3、護(hu)套(tao)式絕(jue)(jue)緣(yuan)老化(hua)前(qian)的抗張(zhang)(zhang)強(qiang)度(du)(du)、伸長率(lv)合格(ge)的電(dian)線(xian)電(dian)纜。絕(jue)(jue)緣(yuan)護(hu)套(tao)老化(hua)前(qian)的抗張(zhang)(zhang)強(qiang)度(du)(du)、伸長率(lv)不合格(ge)直接大(da)大(da)縮短電(dian)線(xian)電(dian)纜的工作用(yong)壽命，而且在施工或在長時間通電(dian)且溫(wen)度(du)(du)較高的環境(jing)中，極易(yi)出(chu)現絕(jue)(jue)緣(yuan)體斷裂，致(zhi)使(shi)帶電(dian)導(dao)體裸露，發生(sheng)(sheng)能觸(chu)電(dian)式短路(lu)危(wei)險(xian)。其(qi)不合格(ge)的主要原因是使(shi)用(yong)了(le)再(zai)生(sheng)(sheng)料生(sheng)(sheng)產(chan)(chan)，以降低產(chan)(chan)品成本，二是不具備生(sheng)(sheng)產(chan)(chan)資格(ge)小(xiao)型企業。

4、導(dao)體(ti)(ti)電(dian)(dian)(dian)阻(zu)(zu)(zu)不合格(ge)的(de)(de)(de)(de)電(dian)(dian)(dian)線(xian)(xian)(xian)。導(dao)體(ti)(ti)電(dian)(dian)(dian)阻(zu)(zu)(zu)主(zhu)要是考(kao)核電(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)纜的(de)(de)(de)(de)導(dao)體(ti)(ti)材料以(yi)及截面是否符合的(de)(de)(de)(de)重要指標(biao)。當導(dao)體(ti)(ti)電(dian)(dian)(dian)阻(zu)(zu)(zu)超標(biao)時，就增大(da)了(le)電(dian)(dian)(dian)流在(zai)(zai)線(xian)(xian)(xian)路上通過(guo)時的(de)(de)(de)(de)損耗，加(jia)劇了(le)電(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)纜的(de)(de)(de)(de)發(fa)(fa)熱。導(dao)體(ti)(ti)電(dian)(dian)(dian)阻(zu)(zu)(zu)不合格(ge)的(de)(de)(de)(de)原因，主(zhu)要進企業為(wei)了(le)降低成本，將占原材料成本80%的(de)(de)(de)(de)銅材縮水，要么降低導(dao)體(ti)(ti)的(de)(de)(de)(de)截面積，要么使用(yong)含雜質過(guo)高的(de)(de)(de)(de)再生銅，這樣致使電(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)纜的(de)(de)(de)(de)導(dao)體(ti)(ti)電(dian)(dian)(dian)阻(zu)(zu)(zu)嚴重超標(biao)，在(zai)(zai)使用(yong)過(guo)程(cheng)中除易引發(fa)(fa)火災，還會加(jia)速包覆(fu)在(zai)(zai)電(dian)(dian)(dian)線(xian)(xian)(xian)外的(de)(de)(de)(de)絕緣層的(de)(de)(de)(de)老化。

在購買電線電纜的過(guo)程中，消(xiao)費者(zhe)應(ying)注意以(yi)下幾個(ge)事(shi)

第(di)一(yi)、要觀察電(dian)線(xian)的(de)外觀。合格產品的(de)絕緣（護套）層柔軟、有韌性(xing)和伸縮性(xing)、表面(mian)層緊密、光滑、無粗糙(cao)感。如果包裹(guo)電(dian)線(xian)的(de)塑料很容易被剝去(qu)，則存(cun)在(zai)塑料強度不夠(gou)的(de)問題。

第二、要(yao)看電線(xian)的(de)截面(mian)。合格產品的(de)銅(tong)芯或(huo)(huo)鋁(lv)芯表面(mian)應該具有金屬光澤，表面(mian)發黑的(de)銅(tong)或(huo)(huo)表面(mian)發白的(de)鋁(lv)說明已被(bei)氧化。

第三、在購買電線時(shi)應注意查看質量合(he)格證書。如果電線的質量合(he)格，那(nei)么(me)其(qi)電線質量應該(gai)也(ye)受過檢驗，不會有(you)太(tai)大的問(wen)題。

沈(shen)陽(yang)凱鵬電(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)纜(lan)制造(zao)有限公(gong)司隸屬凱鵬集(ji)團(tuan)下(xia)屬子公(gong)司，專門(men)從事(shi)電(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)纜(lan)研發(fa)、生產制造(zao)，是全(quan)國頗具實力的沈(shen)陽(yang)電(dian)(dian)(dian)纜(lan)廠(chang)家，主營產品：電(dian)(dian)(dian)力電(dian)(dian)(dian)纜(lan)、控制電(dian)(dian)(dian)纜(lan)、橡(xiang)套電(dian)(dian)(dian)纜(lan)、電(dian)(dian)(dian)氣裝備用電(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)纜(lan)、電(dian)(dian)(dian)子計算機電(dian)(dian)(dian)纜(lan)、BTTZ電(dian)(dian)(dian)纜(lan)、YTTW電(dian)(dian)(dian)纜(lan)等(deng)，以及電(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)纜(lan)代加工。小編每天(tian)會在公(gong)司官網(wang)(wang)發(fa)布電(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)纜(lan)價(jia)格表，及時更新銅價(jia)以及電(dian)(dian)(dian)纜(lan)廠(chang)報價(jia)信(xin)息。更多有關(guan)電(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)纜(lan)信(xin)息可點(dian)擊公(gong)司官網(wang)(wang)szbowen.cn