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(ge)電線電纜的危害(hai)

電(dian)線電(dian)纜(lan)是用于傳輸(shu)(shu)電(dian)力(li)、傳輸(shu)(shu)信(xin)息和實現(xian)電(dian)磁能(neng)量轉(zhuan)換(huan)的一大類電(dian)工產(chan)品(pin)(pin)。在抽查過程中，發現(xian)了(le)大量的不合格(ge)產(chan)品(pin)(pin)，這(zhe)些劣質產(chan)品(pin)(pin)給電(dian)力(li)系統正常運行埋下(xia)諸(zhu)多隱(yin)患。

1、標(biao)(biao)志(zhi)(zhi)不合(he)格(ge)的電線電纜(lan)。標(biao)(biao)志(zhi)(zhi)是電線電纜(lan)使用識(shi)別(bie)產品基本(ben)信(xin)息的主要途(tu)徑，根據(ju)標(biao)(biao)準規(gui)定標(biao)(biao)志(zhi)(zhi)的主要內容是：產品型號(hao)、規(gui)格(ge)、標(biao)(biao)準號(hao)、廠名、產地等在一定的標(biao)(biao)示(shi)間距內，當(dang)標(biao)(biao)志(zhi)(zhi)不合(he)格(ge)時(shi)，會(hui)造成施工人員識(shi)別(bie)錯(cuo)誤，嚴重(zhong)時(shi)會(hui)引發電氣事故(gu)。

2、結(jie)(jie)構(gou)尺寸(cun)不合(he)格的(de)電(dian)(dian)(dian)線電(dian)(dian)(dian)纜。結(jie)(jie)構(gou)尺寸(cun)的(de)主要(yao)問題是護套厚度(du)(du)，絕緣(yuan)(yuan)厚度(du)(du)，當電(dian)(dian)(dian)纜的(de)護套和絕緣(yuan)(yuan)厚度(du)(du)不達(da)標時(shi)(shi)，致使電(dian)(dian)(dian)線電(dian)(dian)(dian)纜耐電(dian)(dian)(dian)氣(qi)強度(du)(du)會嚴重降低(di)，導致電(dian)(dian)(dian)線電(dian)(dian)(dian)纜的(de)使用(yong)壽命縮短，嚴重時(shi)(shi)可導致電(dian)(dian)(dian)線電(dian)(dian)(dian)纜被擊穿，絕緣(yuan)(yuan)（護套）層(ceng)起不到正常保(bao)護作用(yong)，從而發生電(dian)(dian)(dian)氣(qi)短路和火災等現象。

3、護套式絕緣老化(hua)(hua)前(qian)的抗張(zhang)(zhang)強度(du)、伸(shen)長率合格(ge)(ge)的電(dian)(dian)線(xian)電(dian)(dian)纜。絕緣護套老化(hua)(hua)前(qian)的抗張(zhang)(zhang)強度(du)、伸(shen)長率不(bu)(bu)合格(ge)(ge)直接大大縮短電(dian)(dian)線(xian)電(dian)(dian)纜的工(gong)作(zuo)用壽命，而且在施工(gong)或在長時間通電(dian)(dian)且溫度(du)較高的環境中，極易出現絕緣體(ti)斷(duan)裂，致使(shi)帶電(dian)(dian)導(dao)體(ti)裸(luo)露，發生能觸(chu)電(dian)(dian)式短路危險。其(qi)不(bu)(bu)合格(ge)(ge)的主要(yao)原(yuan)因(yin)是使(shi)用了再生料生產(chan)，以降低產(chan)品(pin)成本，二是不(bu)(bu)具備生產(chan)資格(ge)(ge)小(xiao)型企業。

4、導體(ti)(ti)電(dian)(dian)(dian)阻(zu)不(bu)合格的(de)電(dian)(dian)(dian)線(xian)。導體(ti)(ti)電(dian)(dian)(dian)阻(zu)主要(yao)是考(kao)核電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜的(de)導體(ti)(ti)材(cai)料以及截(jie)(jie)面(mian)是否(fou)符合的(de)重(zhong)要(yao)指標(biao)。當導體(ti)(ti)電(dian)(dian)(dian)阻(zu)超(chao)標(biao)時，就增大(da)了電(dian)(dian)(dian)流在線(xian)路(lu)上(shang)通過時的(de)損(sun)耗(hao)，加劇了電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜的(de)發熱。導體(ti)(ti)電(dian)(dian)(dian)阻(zu)不(bu)合格的(de)原因(yin)，主要(yao)進(jin)企(qi)業為了降低成(cheng)本，將占原材(cai)料成(cheng)本80%的(de)銅材(cai)縮(suo)水(shui)，要(yao)么(me)降低導體(ti)(ti)的(de)截(jie)(jie)面(mian)積，要(yao)么(me)使(shi)用含雜質過高的(de)再生(sheng)銅，這樣致使(shi)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜的(de)導體(ti)(ti)電(dian)(dian)(dian)阻(zu)嚴重(zhong)超(chao)標(biao)，在使(shi)用過程中(zhong)除易引發火災(zai)，還會加速包(bao)覆(fu)在電(dian)(dian)(dian)線(xian)外的(de)絕(jue)緣層的(de)老化。

在購買電線(xian)電纜的過(guo)程中，消(xiao)費者應注意以下幾(ji)個(ge)事(shi)

第(di)一、要觀(guan)察電(dian)線(xian)(xian)的外觀(guan)。合格產品(pin)的絕緣(yuan)（護套）層柔(rou)軟、有韌性(xing)和伸縮性(xing)、表面層緊密、光滑、無粗(cu)糙感(gan)。如果(guo)包裹電(dian)線(xian)(xian)的塑料很容易被剝去(qu)，則存在塑料強度不夠的問題。

第二(er)、要看(kan)電(dian)線的截面(mian)(mian)。合格產品的銅芯或鋁芯表面(mian)(mian)應該具(ju)有金屬光澤，表面(mian)(mian)發(fa)黑(hei)的銅或表面(mian)(mian)發(fa)白的鋁說(shuo)明已(yi)被(bei)氧化。

第三、在購買電線時應注意查看質量合格證書。如果(guo)電線的質量合格，那么其電線質量應該也(ye)受過檢驗，不(bu)會(hui)有太(tai)大的問(wen)題。

沈陽凱鵬(peng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜制(zhi)造有限公(gong)司(si)隸屬(shu)凱鵬(peng)集團下屬(shu)子公(gong)司(si)，專門從事電(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜研(yan)發(fa)、生產(chan)制(zhi)造，是全國頗(po)具實力的沈陽電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜廠(chang)(chang)家，主營產(chan)品：電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜、控制(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜、橡套(tao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)氣裝備用電(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子計算機電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜、BTTZ電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜、YTTW電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜等，以及(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜代加(jia)工(gong)。小編每天(tian)會在公(gong)司(si)官(guan)網(wang)發(fa)布(bu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜價格表，及(ji)時(shi)更新銅價以及(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜廠(chang)(chang)報(bao)價信息。更多有關電(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜信息可點擊公(gong)司(si)官(guan)網(wang)szbowen.cn