1、要看。看有無(wu)質(zhi)量體系認證(zheng)(zheng)書(shu)；看合格證(zheng)(zheng)是(shi)否規范；看有無(wu)廠(chang)名、廠(chang)址、檢驗章(zhang)、生(sheng)產日期；看電(dian)(dian)線(xian)(xian)上是(shi)否印(yin)有商標、規格、電(dian)(dian)壓等。還要看電(dian)(dian)線(xian)(xian)銅芯的橫斷面，優(you)等品紫(zi)銅顏(yan)色(se)光亮、色(se)澤柔和(he)，否則(ze)便(bian)是(shi)次品。

    2、要試。可取(qu)一根電(dian)線頭用(yong)手(shou)反復彎曲，凡是手(shou)感柔軟、抗疲勞強度好、塑料(liao)或橡膠手(shou)感彈性大且電(dian)線絕緣(yuan)體上(shang)無裂痕的就是優等(deng)品。

    3、稱(cheng)重(zhong)(zhong)量(liang)(liang)。質量(liang)(liang)好的(de)電線(xian)，一般都在規(gui)定的(de)重(zhong)(zhong)量(liang)(liang)范圍(wei)內。如常用的(de)截面(mian)積為(wei)1.5mm2的(de)塑料(liao)絕緣(yuan)單股銅(tong)芯(xin)線(xian)，每(mei)100m重(zhong)(zhong)量(liang)(liang)為(wei)1.8～1.9kg；2.5mm2的(de)塑料(liao)絕緣(yuan)單股銅(tong)芯(xin)線(xian)，每(mei)100m重(zhong)(zhong)量(liang)(liang)為(wei)3～3.1kg；4.0mm2的(de)塑料(liao)絕緣(yuan)單股銅(tong)芯(xin)線(xian)，每(mei)100m重(zhong)(zhong)量(liang)(liang)為(wei)4.4～4.6kg等。質量(liang)(liang)差的(de)電線(xian)重(zhong)(zhong)量(liang)(liang)不足，要(yao)么長度(du)不夠，要(yao)么電線(xian)銅(tong)芯(xin)雜質過(guo)多。

  ;  4、比價(jia)(jia)格。由于假冒偽劣電線的制作成本低，因此，商販在銷(xiao)售時，常(chang)以價(jia)(jia)廉(lian)物美為(wei)幌子低價(jia)(jia)銷(xiao)售，使人上當。

    5、看銅(tong)(tong)(tong)質(zhi)。合格的(de)銅(tong)(tong)(tong)芯(xin)(xin)電線(xian)(xian)(xian)銅(tong)(tong)(tong)芯(xin)(xin)應該(gai)是紫紅(hong)色(se)、有光澤(ze)、手感軟。而偽劣(lie)的(de)銅(tong)(tong)(tong)芯(xin)(xin)線(xian)(xian)(xian)銅(tong)(tong)(tong)芯(xin)(xin)為(wei)紫黑色(se)、偏黃(huang)或(huo)偏白(bai)，雜(za)質(zhi)多(duo)(duo)，機械強度差，韌性不佳，稍用力即會(hui)折斷(duan)，而且電線(xian)(xian)(xian)內常有斷(duan)線(xian)(xian)(xian)現象。檢查(cha)時，你只要(yao)把電線(xian)(xian)(xian)一(yi)頭剝開(kai)2cm，然后(hou)用一(yi)張(zhang)白(bai)紙(zhi)在(zai)銅(tong)(tong)(tong)芯(xin)(xin)上稍微搓一(yi)下(xia)，如果白(bai)紙(zhi)上有黑色(se)物質(zhi)，說(shuo)明銅(tong)(tong)(tong)芯(xin)(xin)里雜(za)質(zhi)比較(jiao)多(duo)(duo)。

    金鱗羽弱(ruo)電(dian)線(xian)(xian)材(cai)廠(chang)家(jia)、專業(ye)生(sheng)產：、視頻線(xian)(xian)、電(dian)源線(xian)(xian)、紅黑線(xian)(xian)、電(dian)梯線(xian)(xian)、屏蔽線(xian)(xian)、音(yin)響(xiang)線(xian)(xian)、綜合線(xian)(xian)、控(kong)制線(xian)(xian)等(deng)等(deng)弱(ruo)電(dian)線(xian)(xian)材(cai)！

                                                                                                                                   編輯：夏江