擴徑(jing)導(dao)線(xian)(xian)(xian)是(shi)以滿足技術(shu)條件(jian)的(de)常規導(dao)線(xian)(xian)(xian)規格為(wei)基準，采取擴大導(dao)線(xian)(xian)(xian)外(wai)徑(jing)技術(shu)，在保證電暈(yun)所要求的(de)導(dao)線(xian)(xian)(xian)外(wai)徑(jing)前提下，減少導(dao)線(xian)(xian)(xian)的(de)鋁(lv)截面，從而減少導(dao)線(xian)(xian)(xian)的(de)總重量，減少鐵塔荷(he)載和結(jie)構重量，極大地降低(di)線(xian)(xian)(xian)路(lu)造價(jia)。擴徑(jing)導(dao)線(xian)(xian)(xian)在超高(gao)壓和特(te)高(gao)壓輸電工(gong)程(cheng)中有很(hen)大的(de)應用(yong)空間，尤其(qi)在高(gao)海拔地區(qu)有著更為(wei)廣(guang)闊的(de)前景(jing)。

擴(kuo)徑(jing)(jing)(jing)(jing)導線(xian)(xian)是在普(pu)通的(de)(de)鋼芯絞(jiao)線(xian)(xian)基礎上開發(fa)的(de)(de)一種新(xin)型特殊導線(xian)(xian)，是目前為止外(wai)徑(jing)(jing)(jing)(jing)最大(da)的(de)(de)架空(kong)(kong)導線(xian)(xian)。擴(kuo)徑(jing)(jing)(jing)(jing)鋼芯鋁(lv)絞(jiao)線(xian)(xian)也(ye)叫擴(kuo)徑(jing)(jing)(jing)(jing)空(kong)(kong)心母線(xian)(xian)，由多層鋁(lv)線(xian)(xian)反向絞(jiao)合而成，中間為圓形中空(kong)(kong)結構(gou)(gou)。產品(pin)適(shi)用于高(gao)低壓輸電(dian)(dian)線(xian)(xian)中電(dian)(dian)廠及變電(dian)(dian)站配電(dian)(dian)線(xian)(xian)路，使用它可以(yi)將(jiang)絞(jiao)線(xian)(xian)外(wai)徑(jing)(jing)(jing)(jing)擴(kuo)大(da)，減(jian)小(xiao)絞(jiao)線(xian)(xian)表面的(de)(de)電(dian)(dian)場強度，減(jian)少(shao)電(dian)(dian)暈損失(shi)，大(da)幅度提高(gao)導線(xian)(xian)的(de)(de)使用效率，減(jian)少(shao)對(dui)無線(xian)(xian)電(dian)(dian)的(de)(de)干(gan)擾，實(shi)現較大(da)擴(kuo)徑(jing)(jing)(jing)(jing)率，結構(gou)(gou)穩定，自支(zhi)撐性能好，能夠(gou)避(bi)免(mian)跳股(gu)等(deng)缺陷的(de)(de)發(fa)生。產品(pin)性能特點：線(xian)(xian)膨脹系數較好，電(dian)(dian)暈損失(shi)小(xiao)，有良好的(de)(de)散熱性。