一、漆包銅線和漆包鋁線怎么區分
漆包(bao)線(xian)按照材質不同有(you)銅線(xian)、鋁線(xian)、銅包(bao)鋁線(xian)等多種,其中比較常用(yong)的是銅線(xian)和(he)鋁線(xian),漆包(bao)銅線(xian)和(he)漆包(bao)鋁線(xian)性能有(you)所(suo)不同,那么怎么區(qu)分漆包(bao)銅線(xian)和(he)鋁線(xian)呢(ni)?
取(qu)一小段漆包(bao)線(xian)(xian),用打火機(ji)直接燒(shao)線(xian)(xian)頭(tou)(tou),當燒(shao)出(chu)(chu)的線(xian)(xian)頭(tou)(tou)變(bian)成灰或(huo)灰色渣狀(zhuang)(zhuang)時,此線(xian)(xian)為鋁漆包(bao)線(xian)(xian)或(huo)銅包(bao)鋁漆包(bao)線(xian)(xian);當燒(shao)出(chu)(chu)的線(xian)(xian)頭(tou)(tou)變(bian)成球狀(zhuang)(zhuang)或(huo)只燒(shao)去漆層而(er)露出(chu)(chu)紅(hong)色金屬(shu)線(xian)(xian)狀(zhuang)(zhuang),此線(xian)(xian)為銅漆包(bao)線(xian)(xian)。
二、漆包銅線和漆包鋁線哪個好
漆包(bao)線(xian)銅(tong)線(xian)和鋁(lv)(lv)線(xian)相比(bi),各有各的(de)(de)好處:銅(tong)比(bi)鋁(lv)(lv)的(de)(de)導電性要(yao)好、抗(kang)拉強度高、耐溫(wen)高,而缺(que)點(dian)是銅(tong)的(de)(de)成本高、比(bi)鋁(lv)(lv)重。不過整(zheng)體(ti)來說,還是漆包(bao)銅(tong)線(xian)要(yao)好一些。
除了銅線(xian)(xian)(xian)和鋁線(xian)(xian)(xian)的(de)截流量和材質(zhi)不(bu)同(tong)以(yi)外,由于漆包鋁線(xian)(xian)(xian)質(zhi)量更輕,機械強度較差,在(zai)接(jie)駁(bo)線(xian)(xian)(xian)端(duan)極容易(yi)氧化(hua),接(jie)駁(bo)線(xian)(xian)(xian)端(duan)氧化(hua)后會出現溫度升(sheng)高、接(jie)觸不(bu)良等情況(kuang),是引(yin)起故障(斷(duan)(duan)電(dian)或斷(duan)(duan)線(xian)(xian)(xian))的(de)多發點。因此,一些比較重(zhong)要的(de)領域都用的(de)是漆包銅線(xian)(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)線直徑;D鋁(lv):鋁(lv)線直徑;ρ鋁(lv):鋁(lv)的(de)電(dian)阻率(lv),取1/35.5;ρ銅(tong):銅(tong)的(de)電(dian)阻率(lv),取1/58。
比(bi)如,使用1.18㎜的(de)鋁漆包(bao)線(xian),改為(wei)(wei)使用銅線(xian)時,銅線(xian)的(de)線(xian)徑為(wei)(wei)D銅=(35.5/58)1/2*1.18=0.61211/2*1.18=0.7823*1.18=0.92,即1.18㎜鋁漆包(bao)線(xian)改為(wei)(wei)銅漆包(bao)線(xian)后,需用0.92㎜銅線(xian)代(dai)替。