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铜包铝线与纯铜线的区别

发表日期:2022年07月21日   信息来源:massagecoconutcreek.com
  1.机械性能纯铜导线的强度和伸长率大于铜包铝导线,即纯铜的机械性能优于铜包铝导线。内蒙古电线电缆铜包铝导线比纯铜轻得多,因此铜包铝电缆的总重量比纯铜电缆轻,这将方便电缆运输和电缆安装。此外,铜包铝比纯铜稍软,铜包铝导线制成的电缆比纯铜电缆稍软。

  2.由于铝(lv)的(de)(de)(de)(de)导(dao)(dao)电(dian)(dian)性比铜(tong)(tong)(tong)差,铜(tong)(tong)(tong)包(bao)铝(lv)导(dao)(dao)体(ti)(ti)的(de)(de)(de)(de)直(zhi)流(liu)电(dian)(dian)阻(zu)大于纯(chun)铜(tong)(tong)(tong)导(dao)(dao)体(ti)(ti)的(de)(de)(de)(de)直(zhi)流(liu)电(dian)(dian)阻(zu)。当频(pin)率超过5时(shi)(shi)MHz两个不(bu)同(tong)导(dao)(dao)体(ti)(ti)之间的(de)(de)(de)(de)交流(liu)电(dian)(dian)阻(zu)衰(shuai)减没(mei)有(you)(you)显著差异。MHz当电(dian)(dian)流(liu)在表面附近(jin)时(shi)(shi),约为0.025mm铜(tong)(tong)(tong)包(bao)铝(lv)导(dao)(dao)体(ti)(ti)的(de)(de)(de)(de)厚度约为其厚度的(de)(de)(de)(de)几(ji)倍(bei)。对于同(tong)轴电(dian)(dian)缆(lan),由于传(chuan)输(shu)信号(hao)为5,MHz以上,铜(tong)(tong)(tong)包(bao)铝(lv)导(dao)(dao)体(ti)(ti)和纯(chun)铜(tong)(tong)(tong)导(dao)(dao)体(ti)(ti)具(ju)有(you)(you)相同(tong)的(de)(de)(de)(de)传(chuan)输(shu)效果。可以说(shuo),铜(tong)(tong)(tong)包(bao)铝(lv)电(dian)(dian)缆(lan)比纯(chun)铜(tong)(tong)(tong)导(dao)(dao)线电(dian)(dian)缆(lan)具(ju)有(you)(you)好(hao)的(de)(de)(de)(de)回波损耗(hao)指数。


内蒙古电线电缆


  3.经济型铜(tong)包(bao)铝(lv)导(dao)线(xian)比同(tong)等重量(liang)的(de)(de)(de)(de)(de)纯铜(tong)导(dao)线(xian)很贵。然(ran)而(er),同(tong)样(yang)重量(liang)的(de)(de)(de)(de)(de)铜(tong)包(bao)铝(lv)导(dao)线(xian)比纯铜(tong)导(dao)线(xian)长得多,电缆(lan)是根据长度计算的(de)(de)(de)(de)(de)。同(tong)样(yang)重量(liang)的(de)(de)(de)(de)(de)铜(tong)包(bao)铝(lv)线(xian)是铜(tong)线(xian)长度的(de)(de)(de)(de)(de)2.5倍,价格(ge)只有几(ji)百元一吨。综上所述,铜(tong)包(bao)铝(lv)具(ju)有很大的(de)(de)(de)(de)(de)优势(shi)。由于铜(tong)包(bao)铝(lv)电缆(lan)相对较轻(qing),电缆(lan)的(de)(de)(de)(de)(de)运(yun)输成(cheng)(cheng)本(ben)将降低.安(an)装(zhuang)和安(an)装(zhuang)成(cheng)(cheng)本(ben),给施(shi)工带来便利(li)。

  4.复(fu)合铜(tong)铝(lv)的(de)(de)(de)可维护使(shi)用可以减少网络(luo)故障(zhang),防止网络(luo)人员在维护过程中“冬切芯(xin),夏(xia)切皮”(铝(lv)带纵向包(bao)装(zhuang)或(huo)铝(lv)管产品)。由(you)于电缆(lan)铜(tong)芯(xin)内导(dao)体(ti)(ti)(ti)与铝(lv)芯(xin)外导(dao)体(ti)(ti)(ti)之间的(de)(de)(de)热(re)膨胀系数差异(yi)较大,在炎(yan)热(re)的(de)(de)(de)夏(xia)季,铝(lv)芯(xin)外导(dao)体(ti)(ti)(ti)相(xiang)对拉伸,铜(tong)芯(xin)内导(dao)体(ti)(ti)(ti)相(xiang)对收缩,不能完(wan)全接触F机(ji)头座(zuo)的(de)(de)(de)弹性(xing)接触;在严冬,铝(lv)外导(dao)体(ti)(ti)(ti)会大大收缩,导(dao)致屏蔽层脱落。当(dang)铜(tong)包(bao)铝(lv)内导(dao)体(ti)(ti)(ti)用于同(tong)轴电缆(lan)时(shi)(shi),其(qi)热(re)膨胀系数与铝(lv)外导(dao)体(ti)(ti)(ti)之间的(de)(de)(de)差值较小。当(dang)温度发生(sheng)变化(hua)时(shi)(shi),电缆(lan)抽芯(xin)故障(zhang)大大降(jiang)低(di),网络(luo)传输质量提高(gao)。

  铜(tong)包铝(lv)(lv)线(xian)(xian)(xian)是指(zhi)以(yi)铝(lv)(lv)芯(xin)线(xian)(xian)(xian)为主体,涂有比例铜(tong)层的(de)导线(xian)(xian)(xian),可(ke)作为同轴电(dian)(dian)(dian)缆(lan)的(de)导线(xian)(xian)(xian)和电(dian)(dian)(dian)气设备中电(dian)(dian)(dian)线(xian)(xian)(xian)电(dian)(dian)(dian)缆(lan)的(de)导线(xian)(xian)(xian)。铝(lv)(lv)线(xian)(xian)(xian)比例较(jiao)(jiao)小,但焊接性能较(jiao)(jiao)差。因此(ci),铜(tong)包铝(lv)(lv)线(xian)(xian)(xian)不仅(jin)可(ke)以(yi)使用较(jiao)(jiao)小的(de)铝(lv)(lv)比例,而且(qie)可(ke)以(yi)提高焊接性能。


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