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

不合格電線電纜(lan)的危害(hai)

電(dian)線(xian)電(dian)纜(lan)是用(yong)于傳輸(shu)電(dian)力(li)、傳輸(shu)信息和(he)實(shi)現電(dian)磁能量(liang)轉換的(de)一大類電(dian)工產(chan)品。在(zai)抽查過程中，發現了大量(liang)的(de)不合格(ge)產(chan)品，這些劣質產(chan)品給(gei)電(dian)力(li)系統(tong)正常運行埋下諸多隱(yin)患。

1、標(biao)(biao)(biao)志不合(he)(he)格的(de)電(dian)線電(dian)纜。標(biao)(biao)(biao)志是電(dian)線電(dian)纜使(shi)用識別(bie)產品基本信息(xi)的(de)主要途徑(jing)，根(gen)據(ju)標(biao)(biao)(biao)準規(gui)(gui)定(ding)標(biao)(biao)(biao)志的(de)主要內(nei)容是：產品型號、規(gui)(gui)格、標(biao)(biao)(biao)準號、廠名、產地等在一定(ding)的(de)標(biao)(biao)(biao)示間距內(nei)，當(dang)標(biao)(biao)(biao)志不合(he)(he)格時，會造成施(shi)工人員識別(bie)錯誤，嚴重(zhong)時會引發電(dian)氣事(shi)故。

2、結構(gou)尺(chi)寸(cun)不合格的電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)(lan)。結構(gou)尺(chi)寸(cun)的主要問(wen)題(ti)是護套厚(hou)度(du)(du)，絕(jue)緣(yuan)厚(hou)度(du)(du)，當電(dian)(dian)(dian)纜(lan)(lan)的護套和(he)絕(jue)緣(yuan)厚(hou)度(du)(du)不達標時，致使(shi)(shi)電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)(lan)耐電(dian)(dian)(dian)氣(qi)強度(du)(du)會嚴重降低，導致電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)(lan)的使(shi)(shi)用(yong)壽命縮短，嚴重時可導致電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)(lan)被擊(ji)穿，絕(jue)緣(yuan)（護套）層起不到正(zheng)常(chang)保護作用(yong)，從(cong)而發生電(dian)(dian)(dian)氣(qi)短路和(he)火災等現象。

3、護套式(shi)絕(jue)緣老化前的(de)(de)(de)(de)抗(kang)(kang)張強度(du)、伸(shen)長(chang)率合格的(de)(de)(de)(de)電(dian)線電(dian)纜。絕(jue)緣護套老化前的(de)(de)(de)(de)抗(kang)(kang)張強度(du)、伸(shen)長(chang)率不(bu)合格直接大(da)大(da)縮短電(dian)線電(dian)纜的(de)(de)(de)(de)工作用壽命，而(er)且在(zai)施(shi)工或在(zai)長(chang)時(shi)間通電(dian)且溫(wen)度(du)較(jiao)高的(de)(de)(de)(de)環境中，極易出現絕(jue)緣體斷裂(lie)，致使(shi)帶電(dian)導體裸露，發生(sheng)能觸電(dian)式(shi)短路危險。其不(bu)合格的(de)(de)(de)(de)主要原因是使(shi)用了再(zai)生(sheng)料(liao)生(sheng)產(chan)，以降低產(chan)品成本(ben)，二是不(bu)具(ju)備生(sheng)產(chan)資格小型企業。

4、導(dao)(dao)(dao)體電(dian)(dian)(dian)阻不合(he)(he)格的(de)(de)電(dian)(dian)(dian)線(xian)(xian)。導(dao)(dao)(dao)體電(dian)(dian)(dian)阻主要(yao)(yao)是考核電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)的(de)(de)導(dao)(dao)(dao)體材(cai)料以及截(jie)面(mian)是否符合(he)(he)的(de)(de)重要(yao)(yao)指標(biao)(biao)(biao)。當導(dao)(dao)(dao)體電(dian)(dian)(dian)阻超(chao)標(biao)(biao)(biao)時，就增大了(le)電(dian)(dian)(dian)流在線(xian)(xian)路上(shang)通過(guo)時的(de)(de)損耗，加劇了(le)電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)的(de)(de)發熱。導(dao)(dao)(dao)體電(dian)(dian)(dian)阻不合(he)(he)格的(de)(de)原因，主要(yao)(yao)進企業為了(le)降低(di)成本，將占原材(cai)料成本80%的(de)(de)銅材(cai)縮水，要(yao)(yao)么降低(di)導(dao)(dao)(dao)體的(de)(de)截(jie)面(mian)積，要(yao)(yao)么使用(yong)含(han)雜質過(guo)高的(de)(de)再生銅，這樣致使電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)的(de)(de)導(dao)(dao)(dao)體電(dian)(dian)(dian)阻嚴重超(chao)標(biao)(biao)(biao)，在使用(yong)過(guo)程中除(chu)易引發火災(zai)，還會(hui)加速包覆在電(dian)(dian)(dian)線(xian)(xian)外的(de)(de)絕緣層(ceng)的(de)(de)老(lao)化。

在購買電線電纜(lan)的(de)過程中，消費(fei)者應注意以下幾(ji)個事

第一、要觀察電(dian)線(xian)的(de)外觀。合格產品的(de)絕緣（護套）層柔軟(ruan)、有韌性和伸縮性、表面層緊密、光(guang)滑、無粗糙感。如果包裹電(dian)線(xian)的(de)塑料很(hen)容(rong)易被剝去，則(ze)存在塑料強度(du)不夠的(de)問(wen)題。

第二、要看(kan)電(dian)線(xian)的截面(mian)。合(he)格產品的銅(tong)芯(xin)或(huo)鋁(lv)芯(xin)表(biao)面(mian)應(ying)該具有金(jin)屬(shu)光(guang)澤(ze)，表(biao)面(mian)發(fa)黑的銅(tong)或(huo)表(biao)面(mian)發(fa)白的鋁(lv)說明已被氧(yang)化。

第三(san)、在購(gou)買(mai)電線時應注意查看質(zhi)量(liang)合(he)格證書。如果(guo)電線的質(zhi)量(liang)合(he)格，那(nei)么(me)其(qi)電線質(zhi)量(liang)應該也受過檢驗，不會(hui)有太大的問(wen)題。

沈陽(yang)(yang)凱鵬電(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)(lan)制造(zao)有限(xian)公司(si)隸屬凱鵬集團下(xia)屬子公司(si)，專(zhuan)門從事電(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)(lan)研發(fa)、生(sheng)產(chan)制造(zao)，是全國頗具實力的沈陽(yang)(yang)電(dian)(dian)(dian)纜(lan)(lan)(lan)廠家，主(zhu)營產(chan)品：電(dian)(dian)(dian)力電(dian)(dian)(dian)纜(lan)(lan)(lan)、控制電(dian)(dian)(dian)纜(lan)(lan)(lan)、橡(xiang)套電(dian)(dian)(dian)纜(lan)(lan)(lan)、電(dian)(dian)(dian)氣裝備用電(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)(lan)、電(dian)(dian)(dian)子計算機電(dian)(dian)(dian)纜(lan)(lan)(lan)、BTTZ電(dian)(dian)(dian)纜(lan)(lan)(lan)、YTTW電(dian)(dian)(dian)纜(lan)(lan)(lan)等，以及電(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)(lan)代加工。小編每(mei)天(tian)會(hui)在公司(si)官(guan)(guan)網發(fa)布電(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)(lan)價(jia)格表，及時更新銅價(jia)以及電(dian)(dian)(dian)纜(lan)(lan)(lan)廠報價(jia)信息(xi)。更多(duo)有關電(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)(lan)信息(xi)可點擊公司(si)官(guan)(guan)網szbowen.cn