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擴徑(jing)導(dao)(dao)線(xian)(xian)是以滿足技(ji)術(shu)條件的(de)常規導(dao)(dao)線(xian)(xian)規格(ge)為(wei)基準，采取擴大導(dao)(dao)線(xian)(xian)外徑(jing)技(ji)術(shu)，在保證電暈所(suo)要求的(de)導(dao)(dao)線(xian)(xian)外徑(jing)前提(ti)下(xia)，減(jian)少導(dao)(dao)線(xian)(xian)的(de)鋁截面，從而減(jian)少導(dao)(dao)線(xian)(xian)的(de)總重量，減(jian)少鐵塔荷載和結(jie)構重量，極大地降(jiang)低線(xian)(xian)路造價。擴徑(jing)導(dao)(dao)線(xian)(xian)在超高(gao)壓和特高(gao)壓輸(shu)電工程中有很大的(de)應用空間(jian)，尤...