一、漆包銅線和漆包鋁線怎么區分
漆包(bao)線按照材質(zhi)不(bu)同(tong)有銅(tong)線、鋁線、銅(tong)包(bao)鋁線等多種,其中比較常用的是(shi)銅(tong)線和鋁線,漆包(bao)銅(tong)線和漆包(bao)鋁線性(xing)能有所不(bu)同(tong),那(nei)么怎(zen)么區分漆包(bao)銅(tong)線和鋁線呢?
取(qu)一(yi)小段(duan)漆(qi)包線(xian),用(yong)打火機直接(jie)燒線(xian)頭,當燒出(chu)的線(xian)頭變成灰或灰色渣狀時,此線(xian)為鋁(lv)漆(qi)包線(xian)或銅(tong)包鋁(lv)漆(qi)包線(xian);當燒出(chu)的線(xian)頭變成球(qiu)狀或只燒去漆(qi)層而露出(chu)紅色金(jin)屬線(xian)狀,此線(xian)為銅(tong)漆(qi)包線(xian)。
二、漆包銅線和漆包鋁線哪個好
漆(qi)包線銅(tong)線和鋁(lv)(lv)線相(xiang)比,各有各的好處(chu):銅(tong)比鋁(lv)(lv)的導電性要好、抗拉強度高(gao)、耐溫高(gao),而(er)缺點(dian)是銅(tong)的成(cheng)本高(gao)、比鋁(lv)(lv)重。不(bu)過(guo)整(zheng)體來說,還是漆(qi)包銅(tong)線要好一(yi)些。
除了(le)銅(tong)線(xian)(xian)和鋁(lv)線(xian)(xian)的截流量和材質不(bu)(bu)同(tong)以外,由于漆(qi)包鋁(lv)線(xian)(xian)質量更(geng)輕(qing),機械強度較差,在接(jie)駁(bo)線(xian)(xian)端極(ji)容易氧(yang)化(hua),接(jie)駁(bo)線(xian)(xian)端氧(yang)化(hua)后會出(chu)現溫(wen)度升高、接(jie)觸不(bu)(bu)良等情況(kuang),是引起故障(zhang)(斷電或斷線(xian)(xian))的多(duo)發點(dian)。因(yin)此(ci),一些比較重要的領域都用的是漆(qi)包銅(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=(ρ銅/ρ鋁)/2*D鋁
D銅(tong):銅(tong)線直(zhi)(zhi)徑(jing);D鋁:鋁線直(zhi)(zhi)徑(jing);ρ鋁:鋁的(de)電阻率,取1/35.5;ρ銅(tong):銅(tong)的(de)電阻率,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)銅線(xian)時,銅線(xian)的線(xian)徑(jing)為D銅=(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)為銅漆(qi)包(bao)(bao)線(xian)后,需用(yong)0.92㎜銅線(xian)代替。