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聚氯乙烯電纜

聚(ju)氯乙(yi)烯絕(jue)緣電(dian)(dian)纜電(dian)(dian)線產品分為固(gu)定(ding)布線用(yong)(yong)無保護(hu)(hu)套電(dian)(dian)纜、固(gu)定(ding)布線用(yong)(yong)護(hu)(hu)套電(dian)(dian)纜、輕型無護(hu)(hu)套軟(ruan)電(dian)(dian)纜、一般用(yong)(yong)途(tu)護(hu)(hu)套軟(ruan)電(dian)(dian)纜、安裝用(yong)(yong)電(dian)(dian)纜和(he)屏蔽電(dian)(dian)線、特(te)殊用(yong)(yong)途(tu)保護(hu)(hu)套軟(ruan)電(dian)(dian)纜、聚(ju)氯乙(yi)烯絕(jue)緣阻燃耐火電(dian)(dian)纜等(deng)產品

歷史

電(dian)(dian)(dian)線電(dian)(dian)(dian)纜行業(ye)是我國經濟建(jian)設的(de)重(zhong)要配套產業(ye)，廣泛應用于(yu)國民經濟各個領域，占據著中國電(dian)(dian)(dian)工行業(ye)1/4的(de)行業(ye)，是機械工業(ye)中僅次于(yu)汽(qi)車行業(ye)的(de)第(di)二大產業(ye)。其中，室內裝修使用的(de)電(dian)(dian)(dian)線主要是額定電(dian)(dian)(dian)壓(ya)450/750v及以(yi)下聚氯乙烯絕緣電(dian)(dian)(dian)纜，又稱(cheng)電(dian)(dian)(dian)線。

電線(xian)質量(liang)的考核主要由(you)專(zhuan)業檢(jian)驗(yan)機(ji)構進行檢(jian)驗(yan)，報告中主要的技術指標有(you)以(yi)下：

1、導(dao)體(ti)直流電(dian)阻。直接反映電(dian)線(xian)的載流能力(li)，也就是通(tong)常所說能帶多大的負載。該指標與導(dao)體(ti)材(cai)質、導(dao)體(ti)截面積(ji)（電(dian)線(xian)規格）也就是線(xian)徑有關(guan)

2、成(cheng)品耐(nai)壓試驗(yan)。主(zhu)要考核(he)電線的(de)絕(jue)緣是否有漏電。該指標與絕(jue)緣的(de)材料和制造(zao)工(gong)藝有關(guan)

3、絕(jue)緣（護套）厚(hou)度及(ji)機械性能等項(xiang)目。主要考(kao)核電(dian)線使(shi)用壽命(ming)及(ji)使(shi)用環境。絕(jue)緣厚(hou)度過薄(bo)(bo)或扁芯，容(rong)易(yi)在安裝或使(shi)用中(zhong)在薄(bo)(bo)的(de)(de)位置(zhi)發(fa)生(sheng)破損(sun)，形(xing)成(cheng)漏電(dian)。使(shi)用劣質絕(jue)緣材料的(de)(de)電(dian)線使(shi)用壽命(ming)短。

選購

1、首(shou)選正規廠(chang)(chang)家(jia)、商(shang)家(jia)產(chan)品。成盤(pan)包(bao)裝的(de)電(dian)線(xian)(xian)應有(you)合格(ge)證，電(dian)線(xian)(xian)本體應印有(you)廠(chang)(chang)名(ming)或(huo)商(shang)標、電(dian)壓、3C標志等(deng)(deng)(deng)。廠(chang)(chang)家(jia)假(jia)冒(mao)偽(wei)劣(lie)電(dian)線(xian)(xian)往往是“三無”產(chan)品，但上面卻也(ye)有(you)模棱兩可的(de)產(chan)地(di)等(deng)(deng)(deng)標識，如中(zhong)國制造、中(zhong)國某(mou)(mou)省或(huo)某(mou)(mou)市(shi)制造等(deng)(deng)(deng)，這(zhe)實際等(deng)(deng)(deng)于未標產(chan)地(di)。

2、布(bu)電線(xian)(xian)(xian)(xian)(xian)目前使(shi)用(yong)(yong)的(de)(de)(de)(de)導(dao)體(ti)材料主要有(you)銅(tong)(tong)和鋁(lv)。在選購時首先應根據(ju)使(shi)用(yong)(yong)的(de)(de)(de)(de)負載選擇相應的(de)(de)(de)(de)規格(ge)，如照明線(xian)(xian)(xian)(xian)(xian)路使(shi)用(yong)(yong)1.5平方(fang)毫(hao)米的(de)(de)(de)(de)鋁(lv)線(xian)(xian)(xian)(xian)(xian)或2.5平方(fang)毫(hao)米的(de)(de)(de)(de)鋁(lv)線(xian)(xian)(xian)(xian)(xian)，如空調(diao)、微波爐(lu)、烤箱(xiang)等使(shi)用(yong)(yong)2.5平方(fang)毫(hao)米的(de)(de)(de)(de)銅(tong)(tong)線(xian)(xian)(xian)(xian)(xian)或4平方(fang)毫(hao)米的(de)(de)(de)(de)鋁(lv)線(xian)(xian)(xian)(xian)(xian)，選擇合(he)適規格(ge)的(de)(de)(de)(de)電線(xian)(xian)(xian)(xian)(xian)可(ke)避(bi)免由于小規格(ge)電線(xian)(xian)(xian)(xian)(xian)載流量不夠引起短路發生火災；其次選購時應注意導(dao)體(ti)的(de)(de)(de)(de)質(zhi)量，合(he)格(ge)的(de)(de)(de)(de)銅(tong)(tong)芯電線(xian)(xian)(xian)(xian)(xian)應使(shi)用(yong)(yong)紫紅色、有(you)光(guang)澤、手感(gan)軟(ruan)的(de)(de)(de)(de)銅(tong)(tong)線(xian)(xian)(xian)(xian)(xian)，而(er)偽劣(lie)的(de)(de)(de)(de)銅(tong)(tong)芯線(xian)(xian)(xian)(xian)(xian)銅(tong)(tong)芯為紫黑(hei)色、偏(pian)黃或偏(pian)白(bai)，雜志多，機械強度差(cha)，韌(ren)勁不佳，稍用(yong)(yong)力(li)即會折斷(duan)，而(er)且如果多股銅(tong)(tong)絲(si)常有(you)斷(duan)線(xian)(xian)(xian)(xian)(xian)現象，使(shi)用(yong)(yong)壽命(ming)短。

3、布(bu)電線(xian)使用的外皮(pi)為聚氯乙(yi)烯絕(jue)緣(yuan)材料。合格(ge)的電線(xian)絕(jue)緣(yuan)應(ying)該(gai)外觀光滑(hua)、表面印字清晰。從電線(xian)頭觀察(cha)，絕(jue)緣(yuan)應(ying)均勻，不偏芯。有些偽劣斷(duan)線(xian)絕(jue)緣(yuan)層看(kan)上去似乎很(hen)厚實(shi)，實(shi)際上大多是用再生塑(su)料制(zhi)成的，時(shi)間一長，絕(jue)緣(yuan)層會老(lao)化(hua)漏電。

4、質量(liang)好(hao)的電線，一般都在規定的重量(liang)范圍內(nei)。價格上(shang)，由于假冒(mao)偽劣的制(zhi)作成本低，因此，商販在銷售(shou)時，常以(yi)物美價廉為幌子低價銷售(shou)，讓人(ren)上(shang)當。

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