電(dian)(dian)線(xian)電(dian)(dian)纜的(de)(de)制造(zao)與(yu)大(da)多(duo)數(shu)機電(dian)(dian)產品(pin)(pin)的(de)(de)生(sheng)產方式(shi)是(shi)完全不(bu)同的(de)(de)。機電(dian)(dian)產品(pin)(pin)通常采(cai)用將另件(jian)(jian)裝配(pei)成部件(jian)(jian)、多(duo)個部件(jian)(jian)再裝配(pei)成單臺產品(pin)(pin)，pvc電(dian)(dian)線(xian)電(dian)(dian)纜，產品(pin)(pin)以臺數(shu)或件(jian)(jian)數(shu)計量(liang)(liang)。電(dian)(dian)線(xian)電(dian)(dian)纜是(shi)以長度為基本計量(liang)(liang)單位(wei)。對于多(duo)芯的(de)(de)電(dian)(dian)纜為了保證成型度、減小電(dian)(dian)纜的(de)(de)外形，一(yi)般(ban)都(dou)需要將其絞合為圓形。絞合的(de)(de)機理與(yu)導體絞制相仿，由于絞制節(jie)徑較(jiao)大(da)，大(da)多(duo)采(cai)用無退扭方式(shi)。成纜的(de)(de)技術要求(qiu)：一(yi)是(shi)異(yi)型絕緣(yuan)線(xian)芯翻身而(er)導致(zhi)電(dian)(dian)纜的(de)(de)扭彎;二是(shi)防止(zhi)絕緣(yuan)層被劃(hua)傷。

而且也(ye)要(yao)(yao)(yao)看(kan)(kan)電(dian)纜(lan)本身是否(fou)有(you)商(shang)標、規(gui)格、電(dian)壓(ya)等。還(huan)要(yao)(yao)(yao)看(kan)(kan)電(dian)線(xian)(xian)銅(tong)(tong)(tong)芯(xin)的(de)(de)橫(heng)截(jie)面(mian)，的(de)(de)紫銅(tong)(tong)(tong)顏色光亮、色澤柔和。2、稱重(zhong)(zhong)量(liang)(liang)。質量(liang)(liang)好的(de)(de)電(dian)線(xian)(xian)，一般都在規(gui)定的(de)(de)重(zhong)(zhong)量(liang)(liang)范圍內。比如常用的(de)(de)截(jie)面(mian)積為(wei)1。5平方的(de)(de)塑料(liao)絕(jue)緣單股銅(tong)(tong)(tong)芯(xin)線(xian)(xian)，每100m重(zhong)(zhong)量(liang)(liang)為(wei)1。8~1。9KG，2。5平方的(de)(de)塑料(liao)絕(jue)緣單股銅(tong)(tong)(tong)芯(xin)線(xian)(xian)，每100m的(de)(de)重(zhong)(zhong)量(liang)(liang)為(wei)3~3。1kg。質量(liang)(liang)差的(de)(de)電(dian)纜(lan)重(zhong)(zhong)量(liang)(liang)不(bu)足，要(yao)(yao)(yao)么(me)長度(du)不(bu)夠，要(yao)(yao)(yao)么(me)電(dian)線(xian)(xian)的(de)(de)銅(tong)(tong)(tong)芯(xin)雜(za)質太(tai)多。

該怎樣去選擇好(hao)(hao)的(de)(de)(de)電(dian)(dian)纜(lan)產(chan)品(pin)(pin)點(dian)要(yao)(yao)看外觀。不是(shi)(shi)(shi)看這個(ge)產(chan)品(pin)(pin)好(hao)(hao)不好(hao)(hao)看。而是(shi)(shi)(shi)要(yao)(yao)看有(you)沒有(you)3C認(ren)證和(he)質(zhi)量體(ti)系(xi)認(ren)證1書(shu)；看合(he)格(ge)證書(shu)寫是(shi)(shi)(shi)否(fou)規范，是(shi)(shi)(shi)否(fou)上面印刷有(you)廠名、廠址、檢驗章、生產(chan)日期(qi)等等，看看電(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)纜(lan)產(chan)品(pin)(pin)上是(shi)(shi)(shi)否(fou)印有(you)商標、規格(ge)以及電(dian)(dian)壓等等產(chan)品(pin)(pin)說(shuo)明，如果(guo)這些(xie)標志不全或(huo)者是(shi)(shi)(shi)干脆就(jiu)(jiu)沒有(you)，消費者千萬(wan)不要(yao)(yao)進行購(gou)買。當然產(chan)品(pin)(pin)的(de)(de)(de)樣子我們也要(yao)(yao)留意一下，看看電(dian)(dian)纜(lan)表面光滑(hua)與否(fou)，再看看線(xian)(xian)(xian)纜(lan)的(de)(de)(de)橫(heng)截面，安(an)徽電(dian)(dian)線(xian)(xian)(xian)，一般(ban)優(you)等的(de)(de)(de)紫銅顏(yan)色較(jiao)(jiao)為光亮、色澤比較(jiao)(jiao)柔(rou)和(he)，如果(guo)沒滿足以上要(yao)(yao)求就(jiu)(jiu)是(shi)(shi)(shi)次品(pin)(pin)。第二點(dian)要(yao)(yao)看手(shou)感。可以取下一根(gen)電(dian)(dian)線(xian)(xian)(xian)頭(tou)用手(shou)反復(fu)地彎(wan)曲(qu)，但凡是(shi)(shi)(shi)手(shou)感柔(rou)軟、抗(kang)疲1勞強(qiang)度較(jiao)(jiao)好(hao)(hao)的(de)(de)(de)、塑(su)料或(huo)者橡膠手(shou)感彈性大并(bing)且電(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)纜(lan)產(chan)品(pin)(pin)的(de)(de)(de)絕緣體(ti)上不存在龜裂的(de)(de)(de)現象那就(jiu)(jiu)是(shi)(shi)(shi)優(you)等品(pin)(pin)。第三點(dian)要(yao)(yao)看顏(yan)色。根(gen)據產(chan)品(pin)(pin)介紹得知(zhi)，銅芯的(de)(de)(de)顏(yan)色是(shi)(shi)(shi)黃(huang)中偏紅，就(jiu)(jiu)說(shuo)明所用的(de)(de)(de)銅材質(zhi)量較(jiao)(jiao)好(hao)(hao)，而如果(guo)是(shi)(shi)(shi)黃(huang)中發白則是(shi)(shi)(shi)低質(zhi)銅材的(de)(de)(de)表現。