電(dian)力(li)安(an)裝鋁(lv)芯電(dian)纜和銅芯電(dian)纜的對比和選用原則

一、導體選(xuan)擇(ze)... 一、銅(tong)(tong)(tong)芯電(dian)(dian)纜(lan)(lan)(lan)比鋁(lv)芯電(dian)(dian)纜(lan)(lan)(lan)的(de)(de)優(you)勢(shi): 1.電(dian)(dian)阻(zu)率(lv)(lv)低(di) :鋁(lv)芯電(dian)(dian)纜(lan)(lan)(lan)的(de)(de)電(dian)(dian) 阻(zu)率(lv)(lv)比銅(tong)(tong)(tong)芯電(dian)(dian)纜(lan)(lan)(lan)... 1. 電(dian)(dian)阻(zu)率(lv)(lv)低(di):鋁(lv)芯電(dian)(dian)纜(lan)(lan)(lan)的(de)(de)電(dian)(dian)阻(zu)率(lv)(lv)比銅(tong)(tong)(tong)芯電(dian)(dian) 纜(lan)(lan)(lan)約(yue)高1.68倍。 2. 延展(zhan)性好:銅(tong)(tong)(tong)合金的(de)(de)延展(zhan)率(lv)(lv)為(wei)20~40%電(dian)(dian)工用 銅(tong)(tong)(tong)的(de)(de)延展(zhan)率(lv)(lv)在30%以 上而鋁(lv)合金僅(jin)(jin)為(wei)18%... 鋁(lv)芯電(dian)(dian)纜(lan)(lan)(lan)和(he)(he)銅(tong)(tong)(tong)芯電(dian)(dian) 纜(lan)(lan)(lan)不能直接說哪個好哪個差(cha)由于都有優(you)缺點僅(jin)(jin)運用環(huan)境不同 罷了。 一、鋁(lv)芯電(dian)(dian)纜(lan)(lan)(lan)比銅(tong)(tong)(tong)芯電(dian)(dian)纜(lan)(lan)(lan)存在的(de)(de)優(you)勢(shi) : 1、價(jia)格廉價(jia): 銅(tong)(tong)(tong)桿(gan)是(shi)鋁(lv)桿(gan)價(jia)格的(de)(de)3.5... 【鋁(lv)芯電(dian)(dian)纜(lan)(lan)(lan)鋁(lv)電(dian)(dian)纜(lan)(lan)(lan)和(he)(he)銅(tong)(tong)(tong)的(de)(de)差(cha)異】銅(tong)(tong)(tong)芯 電(dian)(dian)纜(lan)(lan)(lan)與鋁(lv)芯電(dian)(dian)纜(lan)(lan)(lan)各自的(de)(de)優(you) 點為(wei)什么(me)現在選(xuan)用銅(tong)(tong)(tong)芯的(de)(de)多(duo):鋁(lv)線的(de)(de) 長(chang)處:輕軟本錢(qian)底!缺點:內 阻(zu)大(da)耗電(dian)(dian)載流量小抗拉(la)強度差(cha)簡略。

如(ru)何區分電線的國標與非(fei)國標？

所謂國(guo)標(biao)(biao)(biao)電(dian)(dian)線，是指符合(he)相關(guan)檢測標(biao)(biao)(biao)準的電(dian)(dian)線，通(tong)常生產過程(cheng)都(dou)經(jing)過較為嚴格(ge)的流程(cheng)。而現(xian)在市面上不僅存(cun)(cun)在國(guo)標(biao)(biao)(biao)電(dian)(dian)線電(dian)(dian)纜，還存(cun)(cun)在很多(duo)非標(biao)(biao)(biao)準的電(dian)(dian)線電(dian)(dian)纜。那么(me)，電(dian)(dian)線要怎(zen)么(me)區分國(guo)標(biao)(biao)(biao)和非標(biao)(biao)(biao)呢？

1.看質量

電(dian)線(xian)(xian)(xian)質量的(de)(de)好壞區分(fen)國標(biao)與非標(biao)的(de)(de)方(fang)式之一(yi)(yi)。在選購一(yi)(yi)款電(dian)線(xian)(xian)(xian)時，先(xian)要將產品相(xiang)關(guan)的(de)(de)資質都查(cha)看一(yi)(yi)遍，比如質量認證書(shu)、產品合格證、商標(biao)、廠名、生產日期等(deng)。如果這些信息(xi)都齊全并且真實(shi)，說明電(dian)線(xian)(xian)(xian)質量是(shi)好的(de)(de)。在購買電(dian)線(xian)(xian)(xian)是(shi)一(yi)(yi)般來說廠家(jia)是(shi)國標(biao)的(de)(de)，買家(jia)在詢問是(shi)否有(you)質量體系認證書(shu)是(shi)會(hui)很(hen)痛快的(de)(de)說有(you)的(de)(de)，并且在很(hen)短時間內就能讓你拿(na)到(dao)手中。

2、看柔軟度

國(guo)標電線就(jiu)算(suan)放(fang)在手(shou)中反(fan)復彎曲(qu)，也能保持(chi)原(yuan)來的形狀，并(bing)且手(shou)感比較柔軟。如果電線一彎就(jiu)折不回(hui)來了，說明(ming)抗疲(pi)勞能力(li)很差(cha)，產品質量(liang)不是很好(hao)。

3.看銅質

合(he)格的(de)銅(tong)芯(xin)(xin)電(dian)(dian)線(xian)銅(tong)芯(xin)(xin)應該是紫(zi)紅色(se)、有(you)光澤、手感軟。而偽劣的(de)銅(tong)芯(xin)(xin)線(xian)銅(tong)芯(xin)(xin)為(wei)紫(zi)黑色(se)、偏黃或偏白(bai)，雜(za)質(zhi)多，機械強度差，韌(ren)性不佳，稍用力(li)即會折斷(duan)，而且(qie)電(dian)(dian)線(xian)內常(chang)有(you)斷(duan)線(xian)現象。檢查時，你只要把電(dian)(dian)線(xian)一頭(tou)剝(bo)開2 cm，然后(hou)用一張白(bai)紙在銅(tong)芯(xin)(xin)上稍微搓一下，如果白(bai)紙上有(you)黑色(se)物質(zhi)，說明銅(tong)芯(xin)(xin)里雜(za)質(zhi)比較多。另外，偽劣電(dian)(dian)線(xian)絕(jue)緣層看上去似乎很厚實，實際(ji)上大多是用塑料(liao)制成的(de)，時間一長，絕(jue)緣層會老(lao)化而漏電(dian)(dian)。

4、看價格

國標電線(xian)(xian)(xian)的(de)價格(ge)(ge)雖(sui)然并不都是統(tong)一的(de)，但也(ye)并不會(hui)出現價格(ge)(ge)高得(de)離譜或低得(de)離譜的(de)現象。而很多非標電線(xian)(xian)(xian)由于本身質量就(jiu)不是很好(hao)，可能會(hui)很便宜，也(ye)可能會(hui)掛羊(yang)頭賣狗肉，漫天要價。電線(xian)(xian)(xian)在價格(ge)(ge)上如果(guo)是真材實料是不會(hui)與市(shi)面上的(de)價格(ge)(ge)有較(jiao)大(da)(da)的(de)差別的(de)，如果(guo)商家打著物美價廉的(de)旗號，大(da)(da)家就(jiu)要瞪大(da)(da)眼睛仔細看看電線(xian)(xian)(xian)的(de)質量情況了(le)