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聚氯乙烯電纜

聚氯乙烯絕緣(yuan)電(dian)(dian)(dian)(dian)(dian)纜電(dian)(dian)(dian)(dian)(dian)線產(chan)品分為固(gu)定(ding)(ding)布線用無保(bao)護(hu)套(tao)電(dian)(dian)(dian)(dian)(dian)纜、固(gu)定(ding)(ding)布線用護(hu)套(tao)電(dian)(dian)(dian)(dian)(dian)纜、輕型無護(hu)套(tao)軟(ruan)電(dian)(dian)(dian)(dian)(dian)纜、一(yi)般(ban)用途護(hu)套(tao)軟(ruan)電(dian)(dian)(dian)(dian)(dian)纜、安裝用電(dian)(dian)(dian)(dian)(dian)纜和屏蔽(bi)電(dian)(dian)(dian)(dian)(dian)線、特(te)殊用途保(bao)護(hu)套(tao)軟(ruan)電(dian)(dian)(dian)(dian)(dian)纜、聚氯乙烯絕緣(yuan)阻燃(ran)耐火電(dian)(dian)(dian)(dian)(dian)纜等產(chan)品

歷史

電(dian)(dian)線電(dian)(dian)纜(lan)行(xing)業(ye)(ye)是(shi)(shi)我國(guo)經濟建(jian)設的重要配套(tao)產(chan)業(ye)(ye)，廣泛(fan)應用(yong)于國(guo)民經濟各個領域，占據著中(zhong)國(guo)電(dian)(dian)工行(xing)業(ye)(ye)1/4的行(xing)業(ye)(ye)，是(shi)(shi)機械工業(ye)(ye)中(zhong)僅次于汽車行(xing)業(ye)(ye)的第(di)二大產(chan)業(ye)(ye)。其中(zhong)，室內裝修(xiu)使(shi)用(yong)的電(dian)(dian)線主要是(shi)(shi)額定電(dian)(dian)壓450/750v及(ji)以下(xia)聚氯乙烯絕(jue)緣電(dian)(dian)纜(lan)，又稱電(dian)(dian)線。

電(dian)線質量(liang)的考(kao)核(he)主(zhu)(zhu)要(yao)由專業檢驗機(ji)構進(jin)行檢驗，報告中主(zhu)(zhu)要(yao)的技術指(zhi)標有以(yi)下(xia)：

1、導(dao)(dao)體(ti)直(zhi)流(liu)電(dian)阻。直(zhi)接反映電(dian)線(xian)的載(zai)流(liu)能(neng)力(li)，也就是通常所說能(neng)帶多大的負載(zai)。該(gai)指(zhi)標(biao)與導(dao)(dao)體(ti)材(cai)質、導(dao)(dao)體(ti)截(jie)面積(ji)（電(dian)線(xian)規格）也就是線(xian)徑有關

2、成品(pin)耐壓試驗。主要考(kao)核電(dian)線的(de)絕(jue)緣(yuan)是否有漏電(dian)。該指標(biao)與絕(jue)緣(yuan)的(de)材(cai)料和制造工藝有關

3、絕緣（護套(tao)）厚度及機(ji)械性能(neng)等項目(mu)。主(zhu)要考核電線使(shi)用(yong)壽命及使(shi)用(yong)環境。絕緣厚度過薄(bo)或扁芯，容易(yi)在安裝或使(shi)用(yong)中在薄(bo)的位置發生破損，形(xing)成漏電。使(shi)用(yong)劣質絕緣材料(liao)的電線使(shi)用(yong)壽命短(duan)。

選購

1、首選正規(gui)廠家、商(shang)家產(chan)(chan)品(pin)(pin)。成盤包裝的電(dian)(dian)線應(ying)有合格(ge)證，電(dian)(dian)線本體(ti)應(ying)印有廠名或商(shang)標(biao)、電(dian)(dian)壓、3C標(biao)志等(deng)(deng)。廠家假冒(mao)偽劣電(dian)(dian)線往(wang)往(wang)是“三無”產(chan)(chan)品(pin)(pin)，但上(shang)面卻(que)也有模棱兩可(ke)的產(chan)(chan)地(di)等(deng)(deng)標(biao)識，如中國(guo)制造(zao)、中國(guo)某省或某市制造(zao)等(deng)(deng)，這實際等(deng)(deng)于未標(biao)產(chan)(chan)地(di)。

2、布電線(xian)(xian)目前使(shi)(shi)(shi)(shi)用(yong)(yong)的(de)(de)導(dao)體材料(liao)主(zhu)要有銅(tong)(tong)和(he)鋁。在選(xuan)購時(shi)首先應根據(ju)使(shi)(shi)(shi)(shi)用(yong)(yong)的(de)(de)負載(zai)選(xuan)擇相應的(de)(de)規格，如照明(ming)線(xian)(xian)路(lu)使(shi)(shi)(shi)(shi)用(yong)(yong)1.5平方毫(hao)米(mi)(mi)的(de)(de)鋁線(xian)(xian)或2.5平方毫(hao)米(mi)(mi)的(de)(de)鋁線(xian)(xian)，如空調(diao)、微波爐、烤箱等使(shi)(shi)(shi)(shi)用(yong)(yong)2.5平方毫(hao)米(mi)(mi)的(de)(de)銅(tong)(tong)線(xian)(xian)或4平方毫(hao)米(mi)(mi)的(de)(de)鋁線(xian)(xian)，選(xuan)擇合(he)適(shi)規格的(de)(de)電線(xian)(xian)可避免(mian)由于小規格電線(xian)(xian)載(zai)流量不夠引(yin)起短(duan)路(lu)發生(sheng)火(huo)災；其次選(xuan)購時(shi)應注(zhu)意(yi)導(dao)體的(de)(de)質量，合(he)格的(de)(de)銅(tong)(tong)芯(xin)電線(xian)(xian)應使(shi)(shi)(shi)(shi)用(yong)(yong)紫紅色、有光澤、手感軟的(de)(de)銅(tong)(tong)線(xian)(xian)，而偽劣的(de)(de)銅(tong)(tong)芯(xin)線(xian)(xian)銅(tong)(tong)芯(xin)為(wei)紫黑色、偏(pian)黃或偏(pian)白，雜志(zhi)多，機械強度差(cha)，韌勁(jing)不佳，稍用(yong)(yong)力即會折斷(duan)，而且如果多股(gu)銅(tong)(tong)絲(si)常有斷(duan)線(xian)(xian)現象，使(shi)(shi)(shi)(shi)用(yong)(yong)壽命(ming)短(duan)。

3、布電(dian)(dian)線(xian)使用的外(wai)皮為聚氯乙烯絕(jue)緣(yuan)材料(liao)(liao)。合格的電(dian)(dian)線(xian)絕(jue)緣(yuan)應該外(wai)觀光(guang)滑、表面印(yin)字清(qing)晰。從電(dian)(dian)線(xian)頭觀察，絕(jue)緣(yuan)應均勻(yun)，不偏(pian)芯。有些偽(wei)劣斷(duan)線(xian)絕(jue)緣(yuan)層(ceng)看上(shang)去似乎很厚實(shi)，實(shi)際上(shang)大多(duo)是用再生塑(su)料(liao)(liao)制成的，時(shi)間一長，絕(jue)緣(yuan)層(ceng)會(hui)老化(hua)漏電(dian)(dian)。

4、質量好的(de)電(dian)線(xian)，一般都在(zai)規(gui)定的(de)重量范圍內。價格上，由于假(jia)冒偽劣的(de)制作成本(ben)低，因此，商(shang)販在(zai)銷售(shou)時(shi)，常以物(wu)美價廉為幌(huang)子低價銷售(shou)，讓人上當。

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