; 輸電線(xian)路(lu)塔(ta)是支持高(gao)壓(ya)或超高(gao)壓(ya)架空送電線(xian)路(lu)的導線(xian)和(he)避雷線(xian)的構筑物。類型根據在線(xian)路(lu)上的位置、作用及(ji)(ji)受力情況分類,還可根據不同的電壓(ya)等(deng)級、線(xian)路(lu)回路(lu)數、導線(xian)及(ji)(ji)避雷線(xian)的布置方式、材料及(ji)(ji)結構形式來確定塔(ta)的名(ming)稱，例如： 220 千伏單回路(lu)導線(xian)水平(ping)排列的門型耐張跨(kua)越塔(ta)。

  常見的(de)(de)懸垂型(xing)塔(ta)或耐(nai)張(zhang)型(xing)塔(ta)，崖門大跨越(yue)鋼管塔(ta)塔(ta)的(de)(de)尺寸(cun)和檔距(ju)須滿足電路要(yao)(yao)求(qiu)：導(dao)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)與(yu)(yu)地而、建筑物、樹木、鐵(tie)路、公路、河流以(yi)及(ji)(ji)其(qi)他架空線(xian)(xian)(xian)(xian)(xian)(xian)(xian)路之間(jian)，導(dao)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)與(yu)(yu)一(yi)導(dao)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)、導(dao)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)與(yu)(yu)避(bi)雷(lei)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)之間(jian)，均(jun)應保持必要(yao)(yao)的(de)(de)最(zui)小(xiao)安(an)全距(ju)離。避(bi)雷(lei)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)對廿線(xian)(xian)(xian)(xian)(xian)(xian)(xian)的(de)(de)保護(hu)角及(ji)(ji)使(shi)用(yong)雙(shuang)避(bi)雷(lei)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)時(shi)兩根避(bi)雷(lei)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)之間(jian)的(de)(de)水平最(zui)小(xiao)距(ju)離應滿足有關規定(ding)。荷(he)載(zai)輸電線(xian)(xian)(xian)(xian)(xian)(xian)(xian)路塔(ta)主要(yao)(yao)承受風荷(he)載(zai)、冰荷(he)載(zai)、線(xian)(xian)(xian)(xian)(xian)(xian)(xian)拉力、恒(heng)荷(he)載(zai)、安(an)裝或檢修時(shi)的(de)(de)人員(yuan)及(ji)(ji)工具秉(bing)以(yi)及(ji)(ji)斷線(xian)(xian)(xian)(xian)(xian)(xian)(xian)、地震(zhen)作用(yong)等荷(he)載(zai)。設(she)計時(shi)應考慮(lv)(lv)這些(xie)荷(he)載(zai)在(zai)(zai)不(bu)(bu)同(tong)(tong)氣象條(tiao)件下的(de)(de)合理組合，恒(heng)荷(he)載(zai)包括塔(ta)、線(xian)(xian)(xian)(xian)(xian)(xian)(xian)、金具、絕緣了的(de)(de)重量及(ji)(ji)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)的(de)(de)角度合力、順(shun)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)不(bu)(bu)平衡(heng)張(zhang)力等。斷線(xian)(xian)(xian)(xian)(xian)(xian)(xian)荷(he)載(zai)在(zai)(zai)考慮(lv)(lv)斷線(xian)(xian)(xian)(xian)(xian)(xian)(xian)根數（一(yi)般不(bu)(bu)考慮(lv)(lv)同(tong)(tong)時(shi)斷導(dao)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)及(ji)(ji)避(bi)雷(lei)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)）、斷線(xian)(xian)(xian)(xian)(xian)(xian)(xian)張(zhang)力的(de)(de)大小(xiao)及(ji)(ji)斷線(xian)(xian)(xian)(xian)(xian)(xian)(xian)時(shi)的(de)(de)氣象條(tiao)件等方而，各(ge)國均(jun)有不(bu)(bu)同(tong)(tong)的(de)(de)規定(ding)。