銅包鋁線分類

銅(tong)(tong)包鋁線按銅(tong)(tong)層(ceng)體積(ji)比(bi)（10%、15%、20%）和軟(ruan)硬狀態(tai)（軟(ruan)態(tai)A、硬態(tai)H）的(de)不同類別 

類型                         解說                             數值

10A       銅(tong)層體積比(bi)為10%的軟態銅(tong)包(bao)鋁線(xian)      10%

10H      銅(tong)層(ceng)體積比為(wei)10%的硬態銅(tong)包鋁(lv)線       10%

15A      銅層(ceng)體積比為15%的軟態銅包鋁線      15%

15H      銅層體積比為15%的硬態銅包(bao)鋁線      15%

20A      銅層體(ti)積(ji)比(bi)為(wei)20%的軟態銅包鋁線      20%

20H      銅(tong)層體積比為20%的(de)硬態銅(tong)包鋁線(xian)      20%

銅包鋁電力電纜

成本低重(zhong)量輕。與相(xiang)同技(ji)術指標的(de)銅(tong)(tong)芯電纜相(xiang)比，銅(tong)(tong)包(bao)鋁(lv)導體電纜可(ke)節約成本40%以上，銅(tong)(tong)包(bao)鋁(lv)/銅(tong)(tong)復合導體電纜可(ke)節約成本20%以上。銅(tong)(tong)包(bao)鋁(lv)線(xian)的(de)比重(zhong)僅為(wei)純銅(tong)(tong)線(xian)的(de)37%-40%。在線(xian)徑、重(zhong)量相(xiang)等的(de)情況(kuang)下，其長度是純銅(tong)(tong)線(xian)的(de)2.5倍。

良好(hao)的(de)(de)焊接性。銅(tong)包(bao)鋁(lv)線(xian)由于(yu)其表(biao)面(mian)同(tong)心包(bao)覆了一層(ceng)純銅(tong)，因此具有(you)跟純銅(tong)線(xian)一樣(yang)的(de)(de)可(ke)焊性，方便生產(chan)。雖(sui)然銅(tong)包(bao)鋁(lv)電(dian)纜(lan)已經誕生，并正逐(zhu)步(bu)(bu)得到(dao)應(ying)(ying)(ying)用(yong)，但尚(shang)(shang)有(you)不小阻力，銅(tong)包(bao)鋁(lv)電(dian)纜(lan)，主要(yao)表(biao)現為(wei)銅(tong)包(bao)鋁(lv)電(dian)纜(lan)尚(shang)(shang)比較(jiao)難(nan)找到(dao)國家(jia)、行(xing)業(ye)的(de)(de)應(ying)(ying)(ying)用(yong)依(yi)據，電(dian)鍍銅(tong)包(bao)鋁(lv)，難(nan)以(yi)得到(dao)設計單(dan)位的(de)(de)認可(ke)。銅(tong)包(bao)鋁(lv)電(dian)纜(lan)尚(shang)(shang)有(you)相當多的(de)(de)產(chan)品還沒有(you)3C認證，行(xing)業(ye)尚(shang)(shang)停留在產(chan)品鑒定，制(zhi)定企業(ye)標(biao)準的(de)(de)階(jie)段，不同(tong)品牌之間的(de)(de)產(chan)品規格(ge)、特性、使用(yong)標(biao)準差(cha)異較(jiao)大，工程(cheng)設計者(zhe)應(ying)(ying)(ying)用(yong)時(shi)難(nan)以(yi)把握，南(nan)通銅(tong)包(bao)鋁(lv)，投資方暫時(shi)也不樂意接受。但是，隨(sui)著國家(jia)的(de)(de)標(biao)準和法規的(de)(de)逐(zhu)步(bu)(bu)完善(shan)和認可(ke)，銅(tong)包(bao)鋁(lv)電(dian)纜(lan)必將走向規范化，無疑(yi)將成為(wei)了未(wei)來幾(ji)年(nian)電(dian)線(xian)電(dian)纜(lan)的(de)(de)亮(liang)點，帶動整(zheng)個行(xing)業(ye)的(de)(de)發展。

銅(tong)包鋁和(he)純(chun)銅(tong)進行以下(xia)四方面的比較：

機械特性：

純(chun)銅(tong)(tong)(tong)導(dao)體強度(du)、伸(shen)長率比銅(tong)(tong)(tong)包(bao)(bao)鋁(lv)(lv)導(dao)體大，也就是(shi)說純(chun)銅(tong)(tong)(tong)在機(ji)械(xie)性(xing)能方(fang)(fang)面(mian)比銅(tong)(tong)(tong)包(bao)(bao)鋁(lv)(lv)好。從電(dian)纜(lan)設計的(de)角度(du)來(lai)看，純(chun)銅(tong)(tong)(tong)導(dao)體比銅(tong)(tong)(tong)包(bao)(bao)鋁(lv)(lv)導(dao)體機(ji)械(xie)強度(du)好的(de)優(you)點(dian)，在實際應用過程中不一定需要(yao)。銅(tong)(tong)(tong)包(bao)(bao)鋁(lv)(lv)導(dao)體比純(chun)銅(tong)(tong)(tong)輕很多(duo)，因(yin)此銅(tong)(tong)(tong)包(bao)(bao)鋁(lv)(lv)的(de)電(dian)纜(lan)在整(zheng)體重量上(shang)比純(chun)銅(tong)(tong)(tong)導(dao)體電(dian)纜(lan)要(yao)輕，這樣會(hui)給電(dian)纜(lan)的(de)運輸(shu)和電(dian)纜(lan)的(de)架設施工帶來(lai)方(fang)(fang)便。另外銅(tong)(tong)(tong)包(bao)(bao)鋁(lv)(lv)比純(chun)銅(tong)(tong)(tong)軟(ruan)一點(dian)，用銅(tong)(tong)(tong)包(bao)(bao)鋁(lv)(lv)導(dao)體生產的(de)電(dian)纜(lan)在柔軟(ruan)性(xing)方(fang)(fang)面(mian)比純(chun)銅(tong)(tong)(tong)的(de)電(dian)纜(lan)好一點(dian)。

電氣性能：

因為鋁(lv)(lv)的導(dao)(dao)電(dian)性比(bi)銅差，使得銅包(bao)鋁(lv)(lv)導(dao)(dao)體的直流(liu)電(dian)阻比(bi)純銅導(dao)(dao)體大，銅包(bao)鋁(lv)(lv)電(dian)磁(ci)線，這點有無影響主要(yao) 2014年中考(kao)沖刺綜合(he)復習(xi)指導(dao)(dao)北京地區(qu)試(shi)提 廣東地區(qu)試(shi)提

江蘇地區試提

看電(dian)(dian)(dian)纜(lan)是否會(hui)被用供(gong)電(dian)(dian)(dian)，如給放大器提供(gong)電(dian)(dian)(dian)源，如果(guo)被用來供(gong)電(dian)(dian)(dian)的(de)(de)(de)(de)話，銅(tong)(tong)(tong)(tong)包(bao)鋁導(dao)體(ti)將會(hui)導(dao)致額(e)外的(de)(de)(de)(de)電(dian)(dian)(dian)力消耗，電(dian)(dian)(dian)壓降低較多。當頻率(lv)超(chao)過5MHz時，此時的(de)(de)(de)(de)交流(liu)電(dian)(dian)(dian)阻衰減在這兩(liang)種(zhong)不同(tong)的(de)(de)(de)(de)導(dao)體(ti)下沒(mei)有明顯的(de)(de)(de)(de)區別(bie)。當然，這主要(yao)是因(yin)為高(gao)頻電(dian)(dian)(dian)流(liu)的(de)(de)(de)(de)集(ji)膚效應(ying)，頻率(lv)越(yue)高(gao)，電(dian)(dian)(dian)流(liu)的(de)(de)(de)(de)流(liu)動(dong)就越(yue)接近導(dao)體(ti)表(biao)面，在銅(tong)(tong)(tong)(tong)包(bao)鋁導(dao)體(ti)的(de)(de)(de)(de)表(biao)面實際(ji)上(shang)純銅(tong)(tong)(tong)(tong)材料，當頻率(lv)高(gao)到(dao)一定(ding)時候，整(zheng)個電(dian)(dian)(dian)流(liu)鍍(du)在銅(tong)(tong)(tong)(tong)材質里面流(liu)動(dong)了(le)。在5MHz情(qing)況(kuang)下，電(dian)(dian)(dian)流(liu)在近表(biao)面的(de)(de)(de)(de)約0.025毫米厚度中流(liu)動(dong)，而銅(tong)(tong)(tong)(tong)包(bao)鋁導(dao)體(ti)的(de)(de)(de)(de)銅(tong)(tong)(tong)(tong)層厚度比(bi)此厚度多約一倍(bei)。對于同(tong)軸電(dian)(dian)(dian)纜(lan)，因(yin)為傳(chuan)輸(shu)的(de)(de)(de)(de)信號是在5MHz以(yi)上(shang)，因(yin)此銅(tong)(tong)(tong)(tong)包(bao)鋁導(dao)體(ti)和純銅(tong)(tong)(tong)(tong)導(dao)體(ti)傳(chuan)輸(shu)效果(guo)是相(xiang)同(tong)的(de)(de)(de)(de)。在實際(ji)測試電(dian)(dian)(dian)纜(lan)的(de)(de)(de)(de)衰減可以(yi)證明這一點(dian)。