一、漆包銅線和漆包鋁線怎么區分
漆(qi)包線(xian)(xian)(xian)按照材質不(bu)同有(you)銅線(xian)(xian)(xian)、鋁(lv)線(xian)(xian)(xian)、銅包鋁(lv)線(xian)(xian)(xian)等(deng)多種,其中比(bi)較常用的(de)是銅線(xian)(xian)(xian)和鋁(lv)線(xian)(xian)(xian),漆(qi)包銅線(xian)(xian)(xian)和漆(qi)包鋁(lv)線(xian)(xian)(xian)性能有(you)所不(bu)同,那(nei)么怎么區分(fen)漆(qi)包銅線(xian)(xian)(xian)和鋁(lv)線(xian)(xian)(xian)呢?
取一小段漆(qi)包(bao)線(xian)(xian)(xian),用打火機(ji)直接燒(shao)線(xian)(xian)(xian)頭(tou)(tou),當燒(shao)出(chu)的(de)線(xian)(xian)(xian)頭(tou)(tou)變成灰(hui)或(huo)灰(hui)色渣狀(zhuang)(zhuang)時,此線(xian)(xian)(xian)為鋁漆(qi)包(bao)線(xian)(xian)(xian)或(huo)銅包(bao)鋁漆(qi)包(bao)線(xian)(xian)(xian);當燒(shao)出(chu)的(de)線(xian)(xian)(xian)頭(tou)(tou)變成球(qiu)狀(zhuang)(zhuang)或(huo)只燒(shao)去漆(qi)層而露出(chu)紅色金屬(shu)線(xian)(xian)(xian)狀(zhuang)(zhuang),此線(xian)(xian)(xian)為銅漆(qi)包(bao)線(xian)(xian)(xian)。
二、漆包銅線和漆包鋁線哪個好
漆(qi)包(bao)線(xian)(xian)銅線(xian)(xian)和鋁線(xian)(xian)相比,各有各的好(hao)處(chu):銅比鋁的導電性要好(hao)、抗拉強度高(gao)、耐溫高(gao),而缺(que)點是(shi)銅的成(cheng)本(ben)高(gao)、比鋁重。不過整體來說,還(huan)是(shi)漆(qi)包(bao)銅線(xian)(xian)要好(hao)一些(xie)。
除(chu)了銅(tong)線(xian)(xian)和鋁線(xian)(xian)的(de)截流量(liang)和材質不同以外,由于漆包(bao)鋁線(xian)(xian)質量(liang)更輕,機械強度(du)較差(cha),在(zai)接(jie)駁線(xian)(xian)端極(ji)容易氧化(hua),接(jie)駁線(xian)(xian)端氧化(hua)后會出現溫度(du)升(sheng)高、接(jie)觸不良等情(qing)況,是引起故障(斷電或斷線(xian)(xian))的(de)多發點(dian)。因此(ci),一(yi)些比(bi)較重要的(de)領域都用(yong)的(de)是漆包(bao)銅(tong)線(xian)(xian)。
三、鋁漆包線改銅漆包線怎樣換算
漆包鋁線和漆包銅線的材質不同,改的時候要注意換算大小,具體的換算公式為:
D銅(tong)=(ρ銅(tong)/ρ鋁)/2*D鋁
D銅:銅線直徑;D鋁:鋁線直徑;ρ鋁:鋁的電(dian)阻率,取1/35.5;ρ銅:銅的電(dian)阻率,取1/58。
比如,使用(yong)1.18㎜的鋁漆(qi)包(bao)(bao)線(xian),改(gai)為使用(yong)銅(tong)線(xian)時,銅(tong)線(xian)的線(xian)徑為D銅(tong)=(35.5/58)1/2*1.18=0.61211/2*1.18=0.7823*1.18=0.92,即1.18㎜鋁漆(qi)包(bao)(bao)線(xian)改(gai)為銅(tong)漆(qi)包(bao)(bao)線(xian)后,需用(yong)0.92㎜銅(tong)線(xian)代替(ti)。