文章來源：國家(jia)電網公司 發布時間：2010-06-12
近日，由國家電(dian)網公司組織開展(zhan)的(de)(de)1000平(ping)方毫米大截面(mian)導線首次(ci)展(zhan)放試驗取得成(cheng)功(gong)，標志(zhi)著我國在大截面(mian)導線的(de)(de)研(yan)制生產及施工(gong)(gong)方面(mian)躋身世(shi)界先進行列，對提高我國輸電(dian)線路(lu)施工(gong)(gong)技術(shu)水平(ping)、推動電(dian)網升級，促進電(dian)網節(jie)能降耗和促進環境保護(hu)具有重要意義(yi)。
本(ben)次(ci)試驗(yan)(yan)在甘肅750千伏永白(bai)線(xian)(xian)(xian)199#～212#區段進(jin)行(xing)，驗(yan)(yan)證了施工(gong)(gong)工(gong)(gong)藝(yi)的合理(li)性(xing)，檢驗(yan)(yan)了1000平(ping)方毫(hao)米導線(xian)(xian)(xian)對張(zhang)力(li)放線(xian)(xian)(xian)機(ji)具配(pei)置的適應性(xing)，實踐施工(gong)(gong)方案的可(ke)操(cao)作性(xing)，探討(tao)了35倍線(xian)(xian)(xian)徑(jing)張(zhang)力(li)輪(lun)和(he)15倍線(xian)(xian)(xian)徑(jing)滑輪(lun)在工(gong)(gong)程(cheng)中使用的可(ke)行(xing)性(xing)等(deng)內容，為(wei)最終形成1000平(ping)方毫(hao)米導線(xian)(xian)(xian)張(zhang)力(li)放線(xian)(xian)(xian)施工(gong)(gong)工(gong)(gong)藝(yi)導則、配(pei)套機(ji)具設備(bei)配(pei)置方案、架(jia)線(xian)(xian)(xian)施工(gong)(gong)預(yu)算(suan)定額等(deng)成果，推動工(gong)(gong)程(cheng)實際(ji)應用奠定了重要基(ji)礎。
導(dao)線(xian)(xian)(xian)是輸電(dian)(dian)線(xian)(xian)(xian)路(lu)的(de)主要元件之一(yi)。大(da)(da)截面(mian)導(dao)線(xian)(xian)(xian)技(ji)術(shu)通過增(zeng)大(da)(da)導(dao)線(xian)(xian)(xian)截面(mian)面(mian)積(ji)、增(zeng)加導(dao)線(xian)(xian)(xian)分裂根(gen)數等措施(shi)，可(ke)提(ti)高(gao)主干(gan)輸電(dian)(dian)線(xian)(xian)(xian)路(lu)單位走廊輸送功(gong)率，有效降(jiang)低(di)線(xian)(xian)(xian)路(lu)損耗和(he)(he)無線(xian)(xian)(xian)電(dian)(dian)干(gan)擾、可(ke)聽噪(zao)聲等，顯(xian)著(zhu)降(jiang)低(di)工程投資(zi)成本(ben)(ben)(ben)和(he)(he)運行(xing)(xing)成本(ben)(ben)(ben)，是實現電(dian)(dian)網節能(neng)(neng)降(jiang)耗和(he)(he)促進(jin)環境保護的(de)重要技(ji)術(shu)舉(ju)措，具有顯(xian)著(zhu)的(de)技(ji)術(shu)經濟效益和(he)(he)廣(guang)闊的(de)應(ying)用(yong)前景。近年來，國家電(dian)(dian)網公(gong)司(si)(si)積(ji)極推行(xing)(xing)“資(zi)源節約型、環境友好型，新(xin)技(ji)術(shu)、新(xin)材料(liao)、新(xin)工藝”（“兩型三新(xin)”）輸電(dian)(dian)線(xian)(xian)(xian)路(lu)建設，在多項輸變電(dian)(dian)工程中開展大(da)(da)截面(mian)導(dao)線(xian)(xian)(xian)技(ji)術(shu)研究和(he)(he)應(ying)用(yong)推廣(guang)，取得顯(xian)著(zhu)效果(guo)。公(gong)司(si)(si)正在建設中的(de)我國第一(yi)條±660千伏(fu)直流輸電(dian)(dian)示范工程將(jiang)全線(xian)(xian)(xian)采用(yong)1000平方毫米大(da)(da)截面(mian)導(dao)線(xian)(xian)(xian)。按該工程測算，采用(yong)4×1000mm2導(dao)線(xian)(xian)(xian)比6×630mm2導(dao)線(xian)(xian)(xian)節約線(xian)(xian)(xian)路(lu)本(ben)(ben)(ben)體投資(zi)約4000萬元，工程投運后每(mei)年可(ke)減少(shao)線(xian)(xian)(xian)路(lu)損耗約2700萬千瓦時。同時，積(ji)極推廣(guang)應(ying)用(yong)大(da)(da)截面(mian)導(dao)線(xian)(xian)(xian)技(ji)術(shu)，對于進(jin)一(yi)步(bu)提(ti)升國內電(dian)(dian)力設備企業產品研發(fa)和(he)(he)制(zhi)造(zao)能(neng)(neng)力，以及提(ti)升建設單位施(shi)工水平等都具有重要帶動作用(yong)。