文章來源：中(zhong)國南方電網(wang)有限(xian)責(ze)任(ren)公(gong)司 發(fa)布時(shi)間(jian)：2016-07-03
6月30日(ri)，南(nan)(nan)方電(dian)(dian)(dian)網重(zhong)(zhong)點工程(cheng)——云(yun)南(nan)(nan)硯山至廣西靖西第二(er)回500千伏(fu)(fu)交流(liu)輸(shu)(shu)電(dian)(dian)(dian)工程(cheng)（簡稱滇南(nan)(nan)二(er)回送(song)(song)(song)出(chu)工程(cheng)）建成投運(yun)。該工程(cheng)是南(nan)(nan)方電(dian)(dian)(dian)網西電(dian)(dian)(dian)東送(song)(song)(song)500千伏(fu)(fu)主(zhu)網架的(de)重(zhong)(zhong)要組成部(bu)分，建成后云(yun)南(nan)(nan)500千伏(fu)(fu)交流(liu)外送(song)(song)(song)線路增至5回，可提高云(yun)南(nan)(nan)外送(song)(song)(song)輸(shu)(shu)電(dian)(dian)(dian)能力(li)(li)約50萬千瓦，對保障南(nan)(nan)方電(dian)(dian)(dian)網主(zhu)網架安全穩定運(yun)行、云(yun)南(nan)(nan)汛期(qi)水電(dian)(dian)(dian)送(song)(song)(song)出(chu)、廣西電(dian)(dian)(dian)力(li)(li)供應等具有重(zhong)(zhong)要意(yi)義。
該工程起于(yu)云南硯山(shan)(shan)變電站(zhan)，止于(yu)廣西(xi)靖西(xi)變電站(zhan)，途經云南硯山(shan)(shan)、廣南、富寧縣和(he)廣西(xi)那坡(po)、靖西(xi)縣，全長252.7公里(li)。
工(gong)程建設(she)過程中(zhong)，南方電網公(gong)司還采(cai)用(yong)節(jie)能、降耗、節(jie)水(shui)、環(huan)保(bao)的先進技術設(she)備和產(chan)品(pin)。與(yu)常規線(xian)路(lu)使用(yong)鐵塔相比，該工(gong)程采(cai)用(yong)緊湊型鐵塔，減少塔材(cai)約(yue)(yue)10%左右(you)，塔基占地(di)面(mian)積(ji)(ji)也減少約(yue)(yue)20%；采(cai)用(yong)緊湊型線(xian)路(lu)建設(she)方式，可節(jie)約(yue)(yue)線(xian)路(lu)走廊面(mian)積(ji)(ji)約(yue)(yue)3000到4000畝，共節(jie)約(yue)(yue)線(xian)路(lu)走廊林(lin)區與(yu)塔基占地(di)面(mian)積(ji)(ji)投資費用(yong)約(yue)(yue)2.5億元。