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不合格電(dian)線(xian)電(dian)纜的危(wei)害

電線電纜是用于傳(chuan)輸電力(li)、傳(chuan)輸信(xin)息和實現電磁能量轉換的(de)一大類電工產品(pin)(pin)。在抽(chou)查過程中，發現了大量的(de)不合(he)格產品(pin)(pin)，這些(xie)劣質產品(pin)(pin)給電力(li)系統正常運行埋下諸(zhu)多(duo)隱(yin)患。

1、標志不(bu)合格的(de)(de)電(dian)線電(dian)纜(lan)。標志是(shi)電(dian)線電(dian)纜(lan)使用識別(bie)產(chan)(chan)品基本(ben)信息的(de)(de)主要途(tu)徑，根(gen)據標準規(gui)(gui)定標志的(de)(de)主要內容是(shi)：產(chan)(chan)品型號(hao)、規(gui)(gui)格、標準號(hao)、廠(chang)名、產(chan)(chan)地(di)等(deng)在一(yi)定的(de)(de)標示(shi)間距(ju)內，當標志不(bu)合格時，會(hui)造成施工人員(yuan)識別(bie)錯誤，嚴重時會(hui)引發電(dian)氣事故。

2、結構尺(chi)寸(cun)不合(he)格的電(dian)(dian)線電(dian)(dian)纜(lan)。結構尺(chi)寸(cun)的主要問題是護套厚度，絕緣(yuan)厚度，當電(dian)(dian)纜(lan)的護套和絕緣(yuan)厚度不達標時，致(zhi)(zhi)使(shi)(shi)電(dian)(dian)線電(dian)(dian)纜(lan)耐電(dian)(dian)氣強度會嚴重(zhong)降低，導(dao)致(zhi)(zhi)電(dian)(dian)線電(dian)(dian)纜(lan)的使(shi)(shi)用(yong)壽命縮(suo)短(duan)，嚴重(zhong)時可導(dao)致(zhi)(zhi)電(dian)(dian)線電(dian)(dian)纜(lan)被擊穿，絕緣(yuan)（護套）層起不到(dao)正常保(bao)護作用(yong)，從而(er)發生電(dian)(dian)氣短(duan)路(lu)和火(huo)災等現象。

3、護套式(shi)絕(jue)緣老化前(qian)的抗(kang)(kang)張強度(du)、伸長率合(he)格(ge)的電(dian)線電(dian)纜。絕(jue)緣護套老化前(qian)的抗(kang)(kang)張強度(du)、伸長率不合(he)格(ge)直接大大縮短電(dian)線電(dian)纜的工作用壽命(ming)，而且在(zai)施工或在(zai)長時間通電(dian)且溫(wen)度(du)較(jiao)高的環境中，極(ji)易(yi)出現絕(jue)緣體(ti)斷裂(lie)，致使(shi)帶電(dian)導體(ti)裸(luo)露(lu)，發生(sheng)能觸(chu)電(dian)式(shi)短路危險。其不合(he)格(ge)的主要原因是使(shi)用了(le)再生(sheng)料(liao)生(sheng)產，以降低產品成本(ben)，二是不具備生(sheng)產資格(ge)小型企業。

4、導(dao)(dao)體電(dian)(dian)(dian)(dian)阻不合格(ge)的(de)(de)電(dian)(dian)(dian)(dian)線。導(dao)(dao)體電(dian)(dian)(dian)(dian)阻主要(yao)是(shi)(shi)考核電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)的(de)(de)導(dao)(dao)體材(cai)料以及截面是(shi)(shi)否符合的(de)(de)重要(yao)指標。當導(dao)(dao)體電(dian)(dian)(dian)(dian)阻超(chao)標時，就增(zeng)大(da)了(le)電(dian)(dian)(dian)(dian)流在(zai)線路上(shang)通過時的(de)(de)損耗，加(jia)(jia)劇(ju)了(le)電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)的(de)(de)發熱。導(dao)(dao)體電(dian)(dian)(dian)(dian)阻不合格(ge)的(de)(de)原因，主要(yao)進企業為了(le)降低成本(ben)，將占(zhan)原材(cai)料成本(ben)80%的(de)(de)銅(tong)材(cai)縮(suo)水，要(yao)么降低導(dao)(dao)體的(de)(de)截面積，要(yao)么使(shi)(shi)用含雜(za)質過高的(de)(de)再(zai)生(sheng)銅(tong)，這(zhe)樣致使(shi)(shi)電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)的(de)(de)導(dao)(dao)體電(dian)(dian)(dian)(dian)阻嚴(yan)重超(chao)標，在(zai)使(shi)(shi)用過程(cheng)中除易(yi)引發火災，還(huan)會加(jia)(jia)速(su)包覆在(zai)電(dian)(dian)(dian)(dian)線外(wai)的(de)(de)絕(jue)緣層的(de)(de)老化。

在購買電線電纜的過程(cheng)中，消費者應(ying)注(zhu)意以(yi)下幾個(ge)事

第一、要觀(guan)察電線(xian)的外觀(guan)。合(he)格產品(pin)的絕緣（護套(tao)）層(ceng)柔軟、有(you)韌(ren)性和(he)伸縮性、表面層(ceng)緊密(mi)、光滑、無(wu)粗糙感。如果包裹電線(xian)的塑料很容易被剝去，則存(cun)在(zai)塑料強度不夠(gou)的問題。

第二(er)、要看(kan)電線(xian)的(de)(de)截面(mian)(mian)。合(he)格(ge)產品的(de)(de)銅(tong)芯或(huo)鋁芯表(biao)面(mian)(mian)應該具有(you)金屬光澤，表(biao)面(mian)(mian)發(fa)黑的(de)(de)銅(tong)或(huo)表(biao)面(mian)(mian)發(fa)白的(de)(de)鋁說明已被氧化。

第(di)三、在購(gou)買(mai)電(dian)線(xian)(xian)時應注意查看質量合格證書。如果電(dian)線(xian)(xian)的(de)質量合格，那么其電(dian)線(xian)(xian)質量應該(gai)也(ye)受過(guo)檢驗，不會(hui)有太大的(de)問(wen)題。

沈陽凱鵬電(dian)(dian)(dian)(dian)線(xian)(xian)(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)制造有限公司(si)(si)隸屬(shu)凱鵬集團下屬(shu)子公司(si)(si)，專門(men)從事電(dian)(dian)(dian)(dian)線(xian)(xian)(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)研發、生產(chan)制造，是(shi)全國頗(po)具實力的沈陽電(dian)(dian)(dian)(dian)纜(lan)(lan)廠家，主營產(chan)品：電(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)纜(lan)(lan)、控(kong)制電(dian)(dian)(dian)(dian)纜(lan)(lan)、橡套電(dian)(dian)(dian)(dian)纜(lan)(lan)、電(dian)(dian)(dian)(dian)氣裝備用(yong)電(dian)(dian)(dian)(dian)線(xian)(xian)(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)、電(dian)(dian)(dian)(dian)子計算機電(dian)(dian)(dian)(dian)纜(lan)(lan)、BTTZ電(dian)(dian)(dian)(dian)纜(lan)(lan)、YTTW電(dian)(dian)(dian)(dian)纜(lan)(lan)等，以及(ji)電(dian)(dian)(dian)(dian)線(xian)(xian)(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)代(dai)加工。小編每天會在公司(si)(si)官網發布電(dian)(dian)(dian)(dian)線(xian)(xian)(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)價格表，及(ji)時(shi)更新銅(tong)價以及(ji)電(dian)(dian)(dian)(dian)纜(lan)(lan)廠報價信息。更多有關電(dian)(dian)(dian)(dian)線(xian)(xian)(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)信息可點擊公司(si)(si)官網szbowen.cn