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聚氯乙烯電纜

聚(ju)氯(lv)乙烯絕(jue)緣電(dian)(dian)(dian)纜(lan)(lan)電(dian)(dian)(dian)線產(chan)品(pin)(pin)分為固定(ding)(ding)布線用(yong)無保護(hu)套(tao)(tao)電(dian)(dian)(dian)纜(lan)(lan)、固定(ding)(ding)布線用(yong)護(hu)套(tao)(tao)電(dian)(dian)(dian)纜(lan)(lan)、輕型無護(hu)套(tao)(tao)軟(ruan)電(dian)(dian)(dian)纜(lan)(lan)、一般用(yong)途(tu)護(hu)套(tao)(tao)軟(ruan)電(dian)(dian)(dian)纜(lan)(lan)、安(an)裝用(yong)電(dian)(dian)(dian)纜(lan)(lan)和屏蔽電(dian)(dian)(dian)線、特殊用(yong)途(tu)保護(hu)套(tao)(tao)軟(ruan)電(dian)(dian)(dian)纜(lan)(lan)、聚(ju)氯(lv)乙烯絕(jue)緣阻燃耐火電(dian)(dian)(dian)纜(lan)(lan)等產(chan)品(pin)(pin)

歷史

電(dian)(dian)線電(dian)(dian)纜行業(ye)是(shi)我(wo)國(guo)經濟建設的重(zhong)要(yao)配(pei)套產業(ye)，廣泛應用(yong)于國(guo)民經濟各(ge)個領域，占據著中國(guo)電(dian)(dian)工(gong)行業(ye)1/4的行業(ye)，是(shi)機械工(gong)業(ye)中僅次于汽車行業(ye)的第二(er)大(da)產業(ye)。其(qi)中，室內裝修使用(yong)的電(dian)(dian)線主要(yao)是(shi)額定電(dian)(dian)壓450/750v及以下(xia)聚氯(lv)乙(yi)烯絕緣電(dian)(dian)纜，又(you)稱電(dian)(dian)線。

電線質量(liang)的(de)考(kao)核主(zhu)要由專業檢驗(yan)機構進行檢驗(yan)，報告中主(zhu)要的(de)技術指(zhi)標有以下(xia)：

1、導體直流電阻。直接反映電線的載流能力，也就(jiu)是通常所說能帶多(duo)大的負載。該指(zhi)標與導體材質、導體截面積（電線規格）也就(jiu)是線徑有關

2、成品耐(nai)壓試驗。主(zhu)要考(kao)核電(dian)(dian)線的絕緣是(shi)否有漏電(dian)(dian)。該指(zhi)標與絕緣的材料和制造工藝有關

3、絕緣(yuan)(yuan)（護套）厚度(du)及機械(xie)性能等項目。主要考(kao)核電線使用(yong)壽(shou)命(ming)及使用(yong)環境。絕緣(yuan)(yuan)厚度(du)過薄(bo)或扁芯，容易在安裝(zhuang)或使用(yong)中(zhong)在薄(bo)的位置發生破損，形成漏電。使用(yong)劣質(zhi)絕緣(yuan)(yuan)材料(liao)的電線使用(yong)壽(shou)命(ming)短(duan)。

選購

1、首選正規(gui)廠(chang)家、商家產(chan)品(pin)。成盤(pan)包裝的電(dian)線(xian)應(ying)有(you)合格證(zheng)，電(dian)線(xian)本體應(ying)印(yin)有(you)廠(chang)名(ming)或商標(biao)、電(dian)壓、3C標(biao)志等(deng)(deng)。廠(chang)家假冒(mao)偽(wei)劣電(dian)線(xian)往(wang)往(wang)是“三無”產(chan)品(pin)，但上面卻也有(you)模棱兩可(ke)的產(chan)地等(deng)(deng)標(biao)識，如中國制造、中國某(mou)省或某(mou)市制造等(deng)(deng)，這實際等(deng)(deng)于未標(biao)產(chan)地。

2、布電(dian)(dian)線(xian)(xian)(xian)目前(qian)使用(yong)的導體材(cai)料(liao)主要(yao)有銅(tong)(tong)(tong)和鋁(lv)。在選(xuan)購時首先(xian)應(ying)根據使用(yong)的負(fu)載選(xuan)擇(ze)相(xiang)應(ying)的規格(ge)，如(ru)照明線(xian)(xian)(xian)路使用(yong)1.5平方(fang)毫(hao)米(mi)的鋁(lv)線(xian)(xian)(xian)或(huo)2.5平方(fang)毫(hao)米(mi)的鋁(lv)線(xian)(xian)(xian)，如(ru)空(kong)調、微波(bo)爐、烤箱(xiang)等使用(yong)2.5平方(fang)毫(hao)米(mi)的銅(tong)(tong)(tong)線(xian)(xian)(xian)或(huo)4平方(fang)毫(hao)米(mi)的鋁(lv)線(xian)(xian)(xian)，選(xuan)擇(ze)合適(shi)規格(ge)的電(dian)(dian)線(xian)(xian)(xian)可避免由于小(xiao)規格(ge)電(dian)(dian)線(xian)(xian)(xian)載流量(liang)不(bu)夠引(yin)起短路發(fa)生火災；其次(ci)選(xuan)購時應(ying)注意導體的質量(liang)，合格(ge)的銅(tong)(tong)(tong)芯電(dian)(dian)線(xian)(xian)(xian)應(ying)使用(yong)紫紅色、有光澤、手感軟的銅(tong)(tong)(tong)線(xian)(xian)(xian)，而偽(wei)劣(lie)的銅(tong)(tong)(tong)芯線(xian)(xian)(xian)銅(tong)(tong)(tong)芯為紫黑(hei)色、偏黃或(huo)偏白(bai)，雜志多，機械強度差，韌勁不(bu)佳，稍用(yong)力即會折斷，而且如(ru)果多股銅(tong)(tong)(tong)絲常有斷線(xian)(xian)(xian)現象(xiang)，使用(yong)壽命短。

3、布電(dian)線(xian)使(shi)用的外(wai)皮(pi)為聚氯乙(yi)烯絕(jue)(jue)緣(yuan)材料。合格的電(dian)線(xian)絕(jue)(jue)緣(yuan)應該(gai)外(wai)觀(guan)光滑(hua)、表(biao)面(mian)印字清晰(xi)。從電(dian)線(xian)頭觀(guan)察，絕(jue)(jue)緣(yuan)應均勻，不(bu)偏芯(xin)。有些偽(wei)劣斷線(xian)絕(jue)(jue)緣(yuan)層看上(shang)去似乎很厚實，實際上(shang)大多(duo)是(shi)用再(zai)生塑(su)料制(zhi)成的，時間一長，絕(jue)(jue)緣(yuan)層會老(lao)化漏電(dian)。

4、質量好的電線，一(yi)般(ban)都在規定的重(zhong)量范圍(wei)內。價(jia)(jia)格上，由于假(jia)冒偽劣的制作成本低(di)，因此，商(shang)販在銷(xiao)售(shou)時，常以物美價(jia)(jia)廉(lian)為幌(huang)子低(di)價(jia)(jia)銷(xiao)售(shou)，讓人上當。

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