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不合格(ge)電(dian)線電(dian)纜的危害

電線電纜是用于傳(chuan)輸電力(li)、傳(chuan)輸信息(xi)和實現電磁能量(liang)轉(zhuan)換的(de)一大(da)類電工產品(pin)。在抽查過程(cheng)中，發(fa)現了大(da)量(liang)的(de)不合格產品(pin)，這些劣(lie)質產品(pin)給電力(li)系統正常運行埋(mai)下諸多隱(yin)患。

1、標志不合格的電(dian)線(xian)(xian)電(dian)纜。標志是電(dian)線(xian)(xian)電(dian)纜使用識別產(chan)品基(ji)本信(xin)息的主要(yao)途徑(jing)，根(gen)據標準(zhun)規(gui)定標志的主要(yao)內(nei)容(rong)是：產(chan)品型號、規(gui)格、標準(zhun)號、廠名、產(chan)地等在一定的標示間距內(nei)，當(dang)標志不合格時，會造成施(shi)工人(ren)員識別錯誤，嚴重時會引發電(dian)氣事故。

2、結構尺寸不(bu)合格的(de)電(dian)線(xian)(xian)電(dian)纜。結構尺寸的(de)主(zhu)要問題是護(hu)(hu)套厚度(du)(du)，絕緣厚度(du)(du)，當電(dian)纜的(de)護(hu)(hu)套和(he)(he)絕緣厚度(du)(du)不(bu)達標時，致(zhi)使電(dian)線(xian)(xian)電(dian)纜耐電(dian)氣強度(du)(du)會嚴重降(jiang)低，導致(zhi)電(dian)線(xian)(xian)電(dian)纜的(de)使用壽命縮短，嚴重時可導致(zhi)電(dian)線(xian)(xian)電(dian)纜被(bei)擊穿，絕緣（護(hu)(hu)套）層起不(bu)到正常保護(hu)(hu)作(zuo)用，從而發生電(dian)氣短路和(he)(he)火災等現象。

3、護套式絕(jue)緣(yuan)老(lao)化前(qian)(qian)的(de)抗張強度、伸長(chang)率合格的(de)電(dian)(dian)線(xian)電(dian)(dian)纜。絕(jue)緣(yuan)護套老(lao)化前(qian)(qian)的(de)抗張強度、伸長(chang)率不(bu)合格直接大大縮短(duan)電(dian)(dian)線(xian)電(dian)(dian)纜的(de)工作用(yong)壽命，而且在(zai)施工或在(zai)長(chang)時間通電(dian)(dian)且溫度較高的(de)環境中(zhong)，極易出現(xian)絕(jue)緣(yuan)體斷裂(lie)，致使帶電(dian)(dian)導(dao)體裸(luo)露，發生能(neng)觸電(dian)(dian)式短(duan)路危險。其(qi)不(bu)合格的(de)主要(yao)原因是使用(yong)了再生料生產，以降低產品成本，二是不(bu)具備生產資格小型企業。

4、導(dao)體(ti)電(dian)(dian)(dian)阻不(bu)合格(ge)的(de)電(dian)(dian)(dian)線(xian)。導(dao)體(ti)電(dian)(dian)(dian)阻主要是考(kao)核(he)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜的(de)導(dao)體(ti)材料以及截(jie)面是否符(fu)合的(de)重(zhong)要指標。當導(dao)體(ti)電(dian)(dian)(dian)阻超標時，就增大(da)了電(dian)(dian)(dian)流在線(xian)路上(shang)通過時的(de)損耗，加劇了電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜的(de)發(fa)熱。導(dao)體(ti)電(dian)(dian)(dian)阻不(bu)合格(ge)的(de)原(yuan)因，主要進企業(ye)為了降低成(cheng)本(ben)，將占原(yuan)材料成(cheng)本(ben)80%的(de)銅材縮水，要么降低導(dao)體(ti)的(de)截(jie)面積(ji)，要么使(shi)用(yong)含雜質過高的(de)再生銅，這樣致使(shi)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜的(de)導(dao)體(ti)電(dian)(dian)(dian)阻嚴重(zhong)超標，在使(shi)用(yong)過程中除易引發(fa)火災，還(huan)會(hui)加速包覆在電(dian)(dian)(dian)線(xian)外的(de)絕緣層(ceng)的(de)老化。

在(zai)購買電線電纜(lan)的過程中，消費者應注意以下幾個事(shi)

第一、要觀(guan)察電線的外(wai)觀(guan)。合格產品的絕(jue)緣(yuan)（護(hu)套）層柔軟(ruan)、有韌性和伸縮性、表面層緊密、光(guang)滑(hua)、無(wu)粗糙感。如果包裹電線的塑料很容(rong)易被剝(bo)去(qu)，則存在塑料強度(du)不(bu)夠的問題。

第(di)二、要看電線的截面(mian)。合格產品的銅芯或鋁(lv)芯表面(mian)應該(gai)具有金屬光(guang)澤(ze)，表面(mian)發(fa)黑的銅或表面(mian)發(fa)白的鋁(lv)說明已被(bei)氧化(hua)。

第三、在購買(mai)電(dian)線(xian)時應注意(yi)查看質(zhi)量合格證書。如果電(dian)線(xian)的(de)質(zhi)量合格，那么其電(dian)線(xian)質(zhi)量應該也受(shou)過(guo)檢驗，不會有太大的(de)問題。

沈(shen)陽(yang)凱鵬電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜制造有(you)限公(gong)司隸屬凱鵬集團(tuan)下(xia)屬子(zi)公(gong)司，專門從事電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜研發、生產制造，是全國頗具(ju)實力的(de)沈(shen)陽(yang)電(dian)(dian)(dian)(dian)(dian)纜廠家，主營產品(pin)：電(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)纜、控制電(dian)(dian)(dian)(dian)(dian)纜、橡(xiang)套(tao)電(dian)(dian)(dian)(dian)(dian)纜、電(dian)(dian)(dian)(dian)(dian)氣裝備用(yong)電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜、電(dian)(dian)(dian)(dian)(dian)子(zi)計(ji)算機電(dian)(dian)(dian)(dian)(dian)纜、BTTZ電(dian)(dian)(dian)(dian)(dian)纜、YTTW電(dian)(dian)(dian)(dian)(dian)纜等，以(yi)及電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜代加工(gong)。小編每天會在公(gong)司官(guan)網發布電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜價(jia)(jia)格表(biao)，及時更新銅價(jia)(jia)以(yi)及電(dian)(dian)(dian)(dian)(dian)纜廠報(bao)價(jia)(jia)信息。更多(duo)有(you)關(guan)電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜信息可點(dian)擊(ji)公(gong)司官(guan)網szbowen.cn