国产精品成人网站/两攻一受3p双龙h调教/玩弄人妻少妇500系列/人妻换人妻仑乱/国产成人一区二区三区别

不(bu)合格(ge)電線電纜的危(wei)害

電(dian)線電(dian)纜是用于(yu)傳輸(shu)電(dian)力、傳輸(shu)信息(xi)和實現(xian)電(dian)磁能量轉換的一大(da)(da)類電(dian)工產品(pin)(pin)。在抽查過程中(zhong)，發現(xian)了大(da)(da)量的不合格(ge)產品(pin)(pin)，這(zhe)些劣(lie)質產品(pin)(pin)給(gei)電(dian)力系統(tong)正常運行埋下諸多隱(yin)患。

1、標(biao)志(zhi)不合格的(de)電(dian)線電(dian)纜。標(biao)志(zhi)是電(dian)線電(dian)纜使用識別產(chan)品(pin)基本信(xin)息的(de)主(zhu)要途徑，根據標(biao)準(zhun)(zhun)規定(ding)標(biao)志(zhi)的(de)主(zhu)要內容是：產(chan)品(pin)型號(hao)、規格、標(biao)準(zhun)(zhun)號(hao)、廠名、產(chan)地等在一定(ding)的(de)標(biao)示間距內，當標(biao)志(zhi)不合格時(shi)，會(hui)造成施工(gong)人員識別錯誤，嚴(yan)重時(shi)會(hui)引發電(dian)氣事故(gu)。

2、結(jie)構尺(chi)寸不(bu)合格(ge)的(de)(de)電(dian)(dian)線(xian)(xian)電(dian)(dian)纜(lan)。結(jie)構尺(chi)寸的(de)(de)主要問(wen)題是護(hu)套厚度，絕緣(yuan)厚度，當電(dian)(dian)纜(lan)的(de)(de)護(hu)套和絕緣(yuan)厚度不(bu)達標(biao)時，致(zhi)使(shi)(shi)電(dian)(dian)線(xian)(xian)電(dian)(dian)纜(lan)耐(nai)電(dian)(dian)氣強度會嚴重降低，導致(zhi)電(dian)(dian)線(xian)(xian)電(dian)(dian)纜(lan)的(de)(de)使(shi)(shi)用壽命縮短，嚴重時可導致(zhi)電(dian)(dian)線(xian)(xian)電(dian)(dian)纜(lan)被擊穿，絕緣(yuan)（護(hu)套）層起(qi)不(bu)到(dao)正常保護(hu)作用，從而發生電(dian)(dian)氣短路和火(huo)災等(deng)現(xian)象。

3、護(hu)套(tao)式絕緣老(lao)化前(qian)的(de)(de)抗(kang)張(zhang)強度、伸長率合格的(de)(de)電(dian)線電(dian)纜(lan)。絕緣護(hu)套(tao)老(lao)化前(qian)的(de)(de)抗(kang)張(zhang)強度、伸長率不合格直接(jie)大大縮短電(dian)線電(dian)纜(lan)的(de)(de)工(gong)作用壽命，而(er)且(qie)在(zai)施工(gong)或在(zai)長時間通電(dian)且(qie)溫度較高的(de)(de)環境中，極(ji)易出現絕緣體(ti)(ti)斷裂(lie)，致使帶電(dian)導體(ti)(ti)裸露，發生能觸電(dian)式短路危(wei)險。其不合格的(de)(de)主要原因是使用了再(zai)生料生產(chan)，以降低產(chan)品成本，二是不具備生產(chan)資格小型(xing)企業(ye)。

4、導體(ti)(ti)電(dian)(dian)(dian)阻(zu)不合(he)格的(de)電(dian)(dian)(dian)線(xian)(xian)。導體(ti)(ti)電(dian)(dian)(dian)阻(zu)主要(yao)是考核電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜的(de)導體(ti)(ti)材(cai)料(liao)以及(ji)截(jie)面(mian)是否(fou)符合(he)的(de)重要(yao)指標(biao)。當導體(ti)(ti)電(dian)(dian)(dian)阻(zu)超標(biao)時，就增大了(le)電(dian)(dian)(dian)流在線(xian)(xian)路上通過時的(de)損耗，加劇了(le)電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜的(de)發熱。導體(ti)(ti)電(dian)(dian)(dian)阻(zu)不合(he)格的(de)原因(yin)，主要(yao)進企業為了(le)降(jiang)低成(cheng)本，將占原材(cai)料(liao)成(cheng)本80%的(de)銅(tong)(tong)材(cai)縮水，要(yao)么降(jiang)低導體(ti)(ti)的(de)截(jie)面(mian)積，要(yao)么使(shi)用含雜質過高的(de)再(zai)生銅(tong)(tong)，這樣致使(shi)電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜的(de)導體(ti)(ti)電(dian)(dian)(dian)阻(zu)嚴(yan)重超標(biao)，在使(shi)用過程中除易引(yin)發火災，還(huan)會(hui)加速(su)包覆(fu)在電(dian)(dian)(dian)線(xian)(xian)外的(de)絕緣層的(de)老化。

在購買電(dian)線電(dian)纜(lan)的過程中，消(xiao)費者應注意以(yi)下幾個(ge)事

第一、要觀察電(dian)(dian)線(xian)的(de)外觀。合格(ge)產品的(de)絕緣（護(hu)套）層柔軟、有韌性和伸縮性、表面層緊(jin)密、光(guang)滑、無粗糙(cao)感(gan)。如果(guo)包裹(guo)電(dian)(dian)線(xian)的(de)塑料很(hen)容易被剝去(qu)，則存在塑料強度不夠(gou)的(de)問題。

第二、要(yao)看(kan)電線的(de)(de)(de)截面(mian)。合(he)格產品的(de)(de)(de)銅芯或(huo)鋁(lv)芯表(biao)面(mian)應該(gai)具有金屬(shu)光澤，表(biao)面(mian)發黑的(de)(de)(de)銅或(huo)表(biao)面(mian)發白(bai)的(de)(de)(de)鋁(lv)說明(ming)已被(bei)氧化。

第三、在(zai)購買電線時(shi)應注意(yi)查看質量(liang)合(he)格證(zheng)書(shu)。如果電線的質量(liang)合(he)格，那么其(qi)電線質量(liang)應該也(ye)受過檢驗，不會有(you)太大的問(wen)題。

沈陽凱鵬電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)制造有限(xian)公(gong)司(si)(si)隸屬(shu)凱鵬集團下屬(shu)子公(gong)司(si)(si)，專門從事電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)研發、生產(chan)制造，是全國頗具實力的沈陽電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)廠(chang)家(jia)，主營產(chan)品：電(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、控制電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、橡套(tao)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(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)(lan)、電(dian)(dian)(dian)(dian)(dian)(dian)子計算機電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、BTTZ電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、YTTW電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)等，以(yi)及電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)代加工。小編(bian)每天(tian)會(hui)在公(gong)司(si)(si)官網發布電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)價(jia)格表，及時(shi)更(geng)新銅價(jia)以(yi)及電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)廠(chang)報價(jia)信息(xi)。更(geng)多(duo)有關電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)信息(xi)可點擊(ji)公(gong)司(si)(si)官網szbowen.cn