銅包鋁(lv)和純銅進(jin)行以下四方面的比較：

機械特性：

純(chun)銅(tong)(tong)導(dao)(dao)體強度、伸(shen)長(chang)率比(bi)(bi)銅(tong)(tong)包(bao)鋁導(dao)(dao)體大，也就是(shi)說純(chun)銅(tong)(tong)在(zai)機(ji)械(xie)性(xing)能方(fang)面(mian)比(bi)(bi)銅(tong)(tong)包(bao)鋁好。從電(dian)纜(lan)(lan)設(she)(she)計(ji)的角(jiao)度來看，純(chun)銅(tong)(tong)導(dao)(dao)體比(bi)(bi)銅(tong)(tong)包(bao)鋁導(dao)(dao)體機(ji)械(xie)強度好的優點(dian)，在(zai)實際應用(yong)過程中不一定需要。銅(tong)(tong)包(bao)鋁導(dao)(dao)體比(bi)(bi)純(chun)銅(tong)(tong)輕很多，因此銅(tong)(tong)包(bao)鋁的電(dian)纜(lan)(lan)在(zai)整(zheng)體重量上(shang)比(bi)(bi)純(chun)銅(tong)(tong)導(dao)(dao)體電(dian)纜(lan)(lan)要輕，這樣會給電(dian)纜(lan)(lan)的運輸和電(dian)纜(lan)(lan)的架設(she)(she)施(shi)工帶來方(fang)便。另外銅(tong)(tong)包(bao)鋁比(bi)(bi)純(chun)銅(tong)(tong)軟一點(dian)，用(yong)銅(tong)(tong)包(bao)鋁導(dao)(dao)體生產的電(dian)纜(lan)(lan)在(zai)柔軟性(xing)方(fang)面(mian)比(bi)(bi)純(chun)銅(tong)(tong)的電(dian)纜(lan)(lan)好一點(dian)。

電氣性能：

因為鋁的導電(dian)性(xing)比(bi)銅(tong)(tong)差(cha)，使(shi)得銅(tong)(tong)包鋁導體的直(zhi)流(liu)電(dian)阻比(bi)純銅(tong)(tong)導體大，這(zhe)點有無影響主要 2014年中考沖刺(ci)綜(zong)合復習指導北(bei)京(jing)地區試提(ti)(ti) 廣東地區試提(ti)(ti)

江蘇地區試提

看電纜(lan)是否會被用供電，如(ru)給放大器提供電源，如(ru)果被用來供電的(de)(de)(de)話，銅(tong)(tong)包鋁(lv)(lv)電纜(lan)，銅(tong)(tong)包鋁(lv)(lv)導(dao)(dao)體(ti)將會導(dao)(dao)致額外(wai)的(de)(de)(de)電力消耗，電壓(ya)降低較多。當(dang)頻(pin)率(lv)超過5MHz時，此(ci)時的(de)(de)(de)交流(liu)(liu)電阻衰減(jian)在(zai)這兩(liang)種不同(tong)(tong)的(de)(de)(de)導(dao)(dao)體(ti)下沒(mei)有明顯的(de)(de)(de)區別。當(dang)然(ran)，這主要是因為(wei)高(gao)頻(pin)電流(liu)(liu)的(de)(de)(de)集膚效(xiao)應，頻(pin)率(lv)越(yue)(yue)高(gao)，電流(liu)(liu)的(de)(de)(de)流(liu)(liu)動(dong)(dong)(dong)就越(yue)(yue)接近導(dao)(dao)體(ti)表面(mian)，在(zai)銅(tong)(tong)包鋁(lv)(lv)導(dao)(dao)體(ti)的(de)(de)(de)表面(mian)實際(ji)上(shang)純銅(tong)(tong)材料，當(dang)頻(pin)率(lv)高(gao)到一(yi)定時候(hou)，整個(ge)電流(liu)(liu)鍍(du)在(zai)銅(tong)(tong)材質(zhi)里(li)面(mian)流(liu)(liu)動(dong)(dong)(dong)了。在(zai)5MHz情況下，電流(liu)(liu)在(zai)近表面(mian)的(de)(de)(de)約0.025毫米厚(hou)(hou)度(du)中流(liu)(liu)動(dong)(dong)(dong)，而銅(tong)(tong)包鋁(lv)(lv)導(dao)(dao)體(ti)的(de)(de)(de)銅(tong)(tong)層厚(hou)(hou)度(du)比此(ci)厚(hou)(hou)度(du)多約一(yi)倍。對于(yu)同(tong)(tong)軸電纜(lan)，因為(wei)傳(chuan)輸的(de)(de)(de)信號是在(zai)5MHz以(yi)上(shang)，因此(ci)銅(tong)(tong)包鋁(lv)(lv)導(dao)(dao)體(ti)和(he)純銅(tong)(tong)導(dao)(dao)體(ti)傳(chuan)輸效(xiao)果是相(xiang)同(tong)(tong)的(de)(de)(de)。在(zai)實際(ji)測試電纜(lan)的(de)(de)(de)衰減(jian)可(ke)以(yi)證明這一(yi)點。

材料和制造：

銅包(bao)鋁線應由一個鋁芯和(he)外(wai)包(bao)連續的(de)銅層所組成，銅層應充(chong)分地和(he)芯線相結合(he)(he)。銅包(bao)鋁線的(de)質量應符合(he)(he)本標準的(de)要求。 

尺寸質量：

銅(tong)包鋁(lv)線的(de)尺寸(cun)(cun)應(ying)用線徑表(biao)示，單位為英(ying)(ying)寸(cun)(cun)，其(qi)十進位小數jing確(que)到0.0001英(ying)(ying)寸(cun)(cun)（0.003毫(hao)(hao)米）。對0.0100英(ying)(ying)寸(cun)(cun)（0.254毫(hao)(hao)米）以下(xia)的(de)線徑，線徑變化(hua)(hua)不(bu)應(ying)大于規定直徑的(de)±0.0001英(ying)(ying)寸(cun)(cun)（±0.003毫(hao)(hao)米），對等于和大于0.01130英(ying)(ying)寸(cun)(cun)（0.254毫(hao)(hao)米）的(de)線徑，線徑變化(hua)(hua)不(bu)應(ying)大于規定直徑的(de)±1%，尺寸(cun)(cun)表(biao)示jing確(que)到0.0001英(ying)(ying)寸(cun)(cun)（0.003毫(hao)(hao)米）。 

 產品質(zhi)量外觀銅包鋁(lv)線應(ying)沒有凹痕(hen)、裂縫、露(lu)鋁(lv)或與良(liang)好(hao)的(de)(de)(de)工(gong)業實踐不相一致的(de)(de)(de)其他(ta)缺陷。對(dui)直(zhi)(zhi)徑(jing)0.0720英(ying)寸（1.829mm）及以上(shang)的(de)(de)(de)銅包鋁(lv)線，表面(mian)光(guang)潔度檢驗應(ying)用肉(rou)眼(yan)（帶正常的(de)(de)(de)眼(yan)鏡也是(shi)可以的(de)(de)(de)）進行(xing)。對(dui)直(zhi)(zhi)徑(jing)小于(yu)0.0720英(ying)寸的(de)(de)(de)銅包鋁(lv)線，表面(mian)光(guang)潔度檢驗應(ying)在放大不超過10倍的(de)(de)(de)情況下進行(xing)。

銅(tong)(tong)(tong)包(bao)(bao)鋁(lv)線(xian)(xian)(xian)(xian)是(shi)一(yi)種常見(jian)的(de)(de)電(dian)線(xian)(xian)(xian)(xian)電(dian)纜(lan)產品，具有良(liang)好(hao)的(de)(de)導(dao)(dao)電(dian)性(xing)能(neng)和(he)耐磨(mo)性(xing)能(neng)。以(yi)下是(shi)銅(tong)(tong)(tong)包(bao)(bao)鋁(lv)線(xian)(xian)(xian)(xian)的(de)(de)使(shi)(shi)用(yong)(yong)方(fang)(fang)法：確(que)定(ding)(ding)(ding)用(yong)(yong)途(tu)：首先需(xu)要(yao)(yao)確(que)定(ding)(ding)(ding)銅(tong)(tong)(tong)包(bao)(bao)鋁(lv)線(xian)(xian)(xian)(xian)的(de)(de)用(yong)(yong)途(tu)，例(li)如用(yong)(yong)于(yu)電(dian)力傳輸、電(dian)器連(lian)(lian)接(jie)(jie)(jie)(jie)(jie)等。選擇(ze)規(gui)(gui)格：根據用(yong)(yong)途(tu)和(he)負(fu)載要(yao)(yao)求(qiu)，選擇(ze)合適的(de)(de)銅(tong)(tong)(tong)包(bao)(bao)鋁(lv)線(xian)(xian)(xian)(xian)規(gui)(gui)格。銅(tong)(tong)(tong)包(bao)(bao)鋁(lv)線(xian)(xian)(xian)(xian)的(de)(de)規(gui)(gui)格一(yi)般(ban)以(yi)導(dao)(dao)體的(de)(de)截面(mian)(mian)積表示，例(li)如1平(ping)方(fang)(fang)毫米、2平(ping)方(fang)(fang)毫米等。安(an)裝(zhuang)敷(fu)設(she)(she)：銅(tong)(tong)(tong)包(bao)(bao)鋁(lv)線(xian)(xian)(xian)(xian)的(de)(de)安(an)裝(zhuang)敷(fu)設(she)(she)應(ying)符合相關(guan)的(de)(de)安(an)全規(gui)(gui)定(ding)(ding)(ding)和(he)技(ji)術(shu)要(yao)(yao)求(qiu)。在(zai)安(an)裝(zhuang)敷(fu)設(she)(she)時，銅(tong)(tong)(tong)包(bao)(bao)鋁(lv)線(xian)(xian)(xian)(xian)，應(ying)注意保護線(xian)(xian)(xian)(xian)纜(lan)，避(bi)免(mian)受潮、磨(mo)損(sun)等問題(ti)。連(lian)(lian)接(jie)(jie)(jie)(jie)(jie)接(jie)(jie)(jie)(jie)(jie)頭(tou)(tou)：銅(tong)(tong)(tong)包(bao)(bao)鋁(lv)線(xian)(xian)(xian)(xian)的(de)(de)連(lian)(lian)接(jie)(jie)(jie)(jie)(jie)接(jie)(jie)(jie)(jie)(jie)頭(tou)(tou)應(ying)符合相關(guan)的(de)(de)安(an)全規(gui)(gui)定(ding)(ding)(ding)和(he)技(ji)術(shu)要(yao)(yao)求(qiu)。在(zai)連(lian)(lian)接(jie)(jie)(jie)(jie)(jie)接(jie)(jie)(jie)(jie)(jie)頭(tou)(tou)時，應(ying)注意清潔線(xian)(xian)(xian)(xian)纜(lan)端(duan)頭(tou)(tou)，銅(tong)(tong)(tong)包(bao)(bao)鋁(lv)，確(que)保接(jie)(jie)(jie)(jie)(jie)觸(chu)良(liang)好(hao)，避(bi)免(mian)接(jie)(jie)(jie)(jie)(jie)頭(tou)(tou)發熱、短(duan)路等問題(ti)。維(wei)護檢查：銅(tong)(tong)(tong)包(bao)(bao)鋁(lv)線(xian)(xian)(xian)(xian)在(zai)使(shi)(shi)用(yong)(yong)過程中，應(ying)定(ding)(ding)(ding)期進行維(wei)護檢查，檢查線(xian)(xian)(xian)(xian)纜(lan)的(de)(de)磨(mo)損(sun)、老化、接(jie)(jie)(jie)(jie)(jie)頭(tou)(tou)等問題(ti)，銅(tong)(tong)(tong)包(bao)(bao)鋁(lv)繞組線(xian)(xian)(xian)(xian)，及時進行維(wei)修或(huo)更換。總之，銅(tong)(tong)(tong)包(bao)(bao)鋁(lv)線(xian)(xian)(xian)(xian)的(de)(de)使(shi)(shi)用(yong)(yong)需(xu)要(yao)(yao)注意確(que)定(ding)(ding)(ding)用(yong)(yong)途(tu)、選擇(ze)規(gui)(gui)格、安(an)裝(zhuang)敷(fu)設(she)(she)、連(lian)(lian)接(jie)(jie)(jie)(jie)(jie)接(jie)(jie)(jie)(jie)(jie)頭(tou)(tou)和(he)維(wei)護檢查等方(fang)(fang)面(mian)(mian)，以(yi)確(que)保其(qi)正常使(shi)(shi)用(yong)(yong)和(he)安(an)全性(xing)能(neng)。