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　　近日(ri)，由國(guo)(guo)(guo)家電網(wang)(wang)公司組織開展(zhan)的1000平方(fang)毫米大截面導線首(shou)次(ci)展(zhan)放(fang)試(shi)驗取得成功，標志著我國(guo)(guo)(guo)在大截面導線的研制(zhi)生產及施工方(fang)面躋身世界先進(jin)行列，對(dui)提高我國(guo)(guo)(guo)輸(shu)電線路施工技術(shu)水平、推動電網(wang)(wang)升級，促(cu)進(jin)電網(wang)(wang)節能降耗和促(cu)進(jin)環境保護具有重(zhong)要(yao)意義。

　　本次試驗(yan)在甘肅750千伏永白(bai)線(xian)(xian)199#～212#區段進行，驗(yan)證了施(shi)(shi)工(gong)工(gong)藝(yi)的(de)合理性(xing)(xing)，檢驗(yan)了1000平方(fang)(fang)(fang)毫米導(dao)線(xian)(xian)對張力(li)放線(xian)(xian)機具配置的(de)適應性(xing)(xing)，實踐施(shi)(shi)工(gong)方(fang)(fang)(fang)案的(de)可操作性(xing)(xing)，探討了35倍線(xian)(xian)徑(jing)(jing)張力(li)輪和15倍線(xian)(xian)徑(jing)(jing)滑輪在工(gong)程(cheng)中使用的(de)可行性(xing)(xing)等內容，為最終形成1000平方(fang)(fang)(fang)毫米導(dao)線(xian)(xian)張力(li)放線(xian)(xian)施(shi)(shi)工(gong)工(gong)藝(yi)導(dao)則、配套機具設備配置方(fang)(fang)(fang)案、架線(xian)(xian)施(shi)(shi)工(gong)預(yu)算定(ding)額等成果，推動工(gong)程(cheng)實際應用奠定(ding)了重要基(ji)礎。

　　導(dao)(dao)線(xian)(xian)(xian)(xian)(xian)是(shi)輸(shu)電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)(xian)(xian)路的(de)主要(yao)元件之一。大截(jie)面(mian)導(dao)(dao)線(xian)(xian)(xian)(xian)(xian)技(ji)(ji)術(shu)通過增(zeng)大導(dao)(dao)線(xian)(xian)(xian)(xian)(xian)截(jie)面(mian)面(mian)積(ji)、增(zeng)加導(dao)(dao)線(xian)(xian)(xian)(xian)(xian)分(fen)裂根數等措(cuo)施，可(ke)(ke)提(ti)(ti)高主干輸(shu)電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)(xian)(xian)路單位(wei)走廊輸(shu)送(song)功率，有效(xiao)降低線(xian)(xian)(xian)(xian)(xian)路損耗(hao)(hao)和無線(xian)(xian)(xian)(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)干擾、可(ke)(ke)聽(ting)噪聲等，顯著降低工(gong)(gong)程(cheng)投(tou)資成(cheng)(cheng)本和運行(xing)成(cheng)(cheng)本，是(shi)實(shi)現(xian)電(dian)(dian)(dian)(dian)(dian)(dian)網節(jie)(jie)能降耗(hao)(hao)和促進(jin)環(huan)境保護的(de)重要(yao)技(ji)(ji)術(shu)舉措(cuo)，具(ju)有顯著的(de)技(ji)(ji)術(shu)經濟(ji)效(xiao)益和廣(guang)(guang)闊(kuo)的(de)應用前景。近年來，國家電(dian)(dian)(dian)(dian)(dian)(dian)網公(gong)(gong)司(si)積(ji)極推(tui)行(xing)“資源節(jie)(jie)約型、環(huan)境友(you)好型，新技(ji)(ji)術(shu)、新材料(liao)、新工(gong)(gong)藝”（“兩型三新”）輸(shu)電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)(xian)(xian)路建(jian)設(she)(she)，在多項輸(shu)變電(dian)(dian)(dian)(dian)(dian)(dian)工(gong)(gong)程(cheng)中(zhong)(zhong)開(kai)展大截(jie)面(mian)導(dao)(dao)線(xian)(xian)(xian)(xian)(xian)技(ji)(ji)術(shu)研究和應用推(tui)廣(guang)(guang)，取得顯著效(xiao)果(guo)。公(gong)(gong)司(si)正在建(jian)設(she)(she)中(zhong)(zhong)的(de)我國第一條±660千伏(fu)直流輸(shu)電(dian)(dian)(dian)(dian)(dian)(dian)示范工(gong)(gong)程(cheng)將全線(xian)(xian)(xian)(xian)(xian)采用1000平方毫米大截(jie)面(mian)導(dao)(dao)線(xian)(xian)(xian)(xian)(xian)。按該工(gong)(gong)程(cheng)測算，采用4×1000mm2導(dao)(dao)線(xian)(xian)(xian)(xian)(xian)比6×630mm2導(dao)(dao)線(xian)(xian)(xian)(xian)(xian)節(jie)(jie)約線(xian)(xian)(xian)(xian)(xian)路本體(ti)投(tou)資約4000萬元，工(gong)(gong)程(cheng)投(tou)運后每年可(ke)(ke)減少線(xian)(xian)(xian)(xian)(xian)路損耗(hao)(hao)約2700萬千瓦時(shi)。同時(shi)，積(ji)極推(tui)廣(guang)(guang)應用大截(jie)面(mian)導(dao)(dao)線(xian)(xian)(xian)(xian)(xian)技(ji)(ji)術(shu)，對于進(jin)一步提(ti)(ti)升國內電(dian)(dian)(dian)(dian)(dian)(dian)力(li)(li)設(she)(she)備企業產品研發和制造能力(li)(li)，以及提(ti)(ti)升建(jian)設(she)(she)單位(wei)施工(gong)(gong)水平等都具(ju)有重要(yao)帶動作用。