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聚氯乙烯電纜

聚(ju)氯(lv)乙烯絕緣電(dian)(dian)(dian)纜(lan)電(dian)(dian)(dian)線(xian)產品(pin)分為固定(ding)布線(xian)用(yong)(yong)無保護(hu)套(tao)電(dian)(dian)(dian)纜(lan)、固定(ding)布線(xian)用(yong)(yong)護(hu)套(tao)電(dian)(dian)(dian)纜(lan)、輕型無護(hu)套(tao)軟電(dian)(dian)(dian)纜(lan)、一般用(yong)(yong)途護(hu)套(tao)軟電(dian)(dian)(dian)纜(lan)、安裝(zhuang)用(yong)(yong)電(dian)(dian)(dian)纜(lan)和屏蔽電(dian)(dian)(dian)線(xian)、特殊用(yong)(yong)途保護(hu)套(tao)軟電(dian)(dian)(dian)纜(lan)、聚(ju)氯(lv)乙烯絕緣阻燃耐火電(dian)(dian)(dian)纜(lan)等產品(pin)

歷史

電(dian)線電(dian)纜(lan)行(xing)業(ye)是(shi)(shi)我(wo)國(guo)(guo)經濟(ji)建(jian)設的重要配套產業(ye)，廣泛應用于國(guo)(guo)民經濟(ji)各(ge)個(ge)領域，占據著中(zhong)國(guo)(guo)電(dian)工行(xing)業(ye)1/4的行(xing)業(ye)，是(shi)(shi)機械工業(ye)中(zhong)僅次于汽(qi)車行(xing)業(ye)的第二大產業(ye)。其中(zhong)，室內(nei)裝修(xiu)使用的電(dian)線主要是(shi)(shi)額定電(dian)壓450/750v及以下聚氯(lv)乙烯(xi)絕(jue)緣電(dian)纜(lan)，又稱電(dian)線。

電線質量(liang)的考核主要(yao)由專業檢驗(yan)機構進行檢驗(yan)，報告中主要(yao)的技術指標有以下(xia)：

1、導(dao)(dao)體直流(liu)電(dian)阻。直接反(fan)映電(dian)線(xian)的載流(liu)能(neng)力，也就是(shi)通常所說能(neng)帶多(duo)大的負載。該指(zhi)標(biao)與導(dao)(dao)體材質、導(dao)(dao)體截(jie)面(mian)積（電(dian)線(xian)規格）也就是(shi)線(xian)徑有關

2、成品耐壓(ya)試驗。主要(yao)考核電線的絕緣是否(fou)有(you)漏電。該指標(biao)與絕緣的材料和制造工藝有(you)關

3、絕緣（護套）厚度及機械性能等項目。主(zhu)要考核電(dian)線使(shi)(shi)用壽命及使(shi)(shi)用環境。絕緣厚度過薄或扁芯，容易在安裝或使(shi)(shi)用中(zhong)在薄的位(wei)置發生(sheng)破損(sun)，形成漏電(dian)。使(shi)(shi)用劣質絕緣材料的電(dian)線使(shi)(shi)用壽命短(duan)。

選購

1、首選正規廠(chang)家、商(shang)家產品(pin)。成盤(pan)包(bao)裝(zhuang)的電(dian)線(xian)應(ying)有合格證，電(dian)線(xian)本體應(ying)印有廠(chang)名(ming)或(huo)商(shang)標(biao)、電(dian)壓、3C標(biao)志等(deng)。廠(chang)家假冒(mao)偽劣電(dian)線(xian)往往是“三無”產品(pin)，但上面卻(que)也有模棱兩(liang)可的產地等(deng)標(biao)識，如中(zhong)國制造、中(zhong)國某(mou)省或(huo)某(mou)市制造等(deng)，這實際等(deng)于未標(biao)產地。

2、布電(dian)線(xian)(xian)(xian)(xian)(xian)目前使(shi)(shi)用的(de)(de)導(dao)體(ti)材料主要有銅(tong)(tong)(tong)和鋁。在選(xuan)(xuan)購(gou)時(shi)首先應根據使(shi)(shi)用的(de)(de)負載選(xuan)(xuan)擇相(xiang)應的(de)(de)規格(ge)，如(ru)照(zhao)明線(xian)(xian)(xian)(xian)(xian)路使(shi)(shi)用1.5平方(fang)(fang)毫(hao)米(mi)的(de)(de)鋁線(xian)(xian)(xian)(xian)(xian)或(huo)2.5平方(fang)(fang)毫(hao)米(mi)的(de)(de)鋁線(xian)(xian)(xian)(xian)(xian)，如(ru)空調(diao)、微波爐、烤箱等(deng)使(shi)(shi)用2.5平方(fang)(fang)毫(hao)米(mi)的(de)(de)銅(tong)(tong)(tong)線(xian)(xian)(xian)(xian)(xian)或(huo)4平方(fang)(fang)毫(hao)米(mi)的(de)(de)鋁線(xian)(xian)(xian)(xian)(xian)，選(xuan)(xuan)擇合(he)適規格(ge)的(de)(de)電(dian)線(xian)(xian)(xian)(xian)(xian)可避免由于小規格(ge)電(dian)線(xian)(xian)(xian)(xian)(xian)載流量不夠引(yin)起短路發生火災；其次選(xuan)(xuan)購(gou)時(shi)應注意導(dao)體(ti)的(de)(de)質量，合(he)格(ge)的(de)(de)銅(tong)(tong)(tong)芯(xin)電(dian)線(xian)(xian)(xian)(xian)(xian)應使(shi)(shi)用紫(zi)紅色、有光澤、手感軟的(de)(de)銅(tong)(tong)(tong)線(xian)(xian)(xian)(xian)(xian)，而偽劣的(de)(de)銅(tong)(tong)(tong)芯(xin)線(xian)(xian)(xian)(xian)(xian)銅(tong)(tong)(tong)芯(xin)為紫(zi)黑色、偏(pian)黃或(huo)偏(pian)白，雜(za)志(zhi)多，機械(xie)強度差，韌勁不佳，稍用力(li)即會折斷，而且如(ru)果(guo)多股(gu)銅(tong)(tong)(tong)絲常有斷線(xian)(xian)(xian)(xian)(xian)現象，使(shi)(shi)用壽命短。

3、布(bu)電(dian)線(xian)(xian)使用的外皮(pi)為聚氯乙烯絕緣(yuan)材料。合格(ge)的電(dian)線(xian)(xian)絕緣(yuan)應該外觀(guan)光(guang)滑、表面印字清晰。從電(dian)線(xian)(xian)頭(tou)觀(guan)察，絕緣(yuan)應均(jun)勻，不偏芯。有些偽劣斷(duan)線(xian)(xian)絕緣(yuan)層(ceng)看上去似乎很厚實，實際(ji)上大多是用再(zai)生(sheng)塑(su)料制成的，時(shi)間一長，絕緣(yuan)層(ceng)會老化漏電(dian)。

4、質量好的(de)(de)電(dian)線(xian)，一般都在規(gui)定的(de)(de)重量范圍內。價(jia)格上，由于假冒偽劣的(de)(de)制作成本低，因此，商販在銷售時，常以物美價(jia)廉為幌子低價(jia)銷售，讓人(ren)上當。

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