文(wen)章(zhang)來源：國(guo)家電網公司 發布時間：2009-04-14
4月10日(ri)，國(guo)(guo)網交(jiao)流(liu)工(gong)(gong)程建設(she)有限(xian)公司在特(te)(te)高壓工(gong)(gong)程07標(biao)段N502號(hao)張(zhang)力場成功進行架線施工(gong)(gong)首牽試點。這(zhe)標(biao)志著我國(guo)(guo)首個特(te)(te)高壓工(gong)(gong)程——1000千伏(fu)晉東南—南陽—荊(jing)門特(te)(te)高壓交(jiao)流(liu)試驗示范工(gong)(gong)程導線架設(she)施工(gong)(gong)正式(shi)拉開帷幕。
“各就各位，開(kai)牽！”11時(shi)58分，隨著江蘇省送變電公(gong)司(si)1000千伏(fu)晉南荊線07標段(duan)項目經(jing)理一(yi)聲(sheng)令(ling)下(xia)，兩名(ming)分別操作18噸和24噸張(zhang)(zhang)力機(ji)(ji)的(de)操作人員(yuan)同時(shi)轉動張(zhang)(zhang)力機(ji)(ji)啟動鑰(yao)匙(chi)。“轟(hong)——”機(ji)(ji)器轟(hong)鳴。在28噸牽引(yin)機(ji)(ji)的(de)強大牽引(yin)力下(xia)，直徑為28毫(hao)米的(de)鋼絲牽引(yin)繩牽著八(ba)根LGJ-500/35鋼芯鋁絞線猛地沖向(xiang)藍天，向(xiang)356米遠處的(de)N502號塔(ta)(ta)塔(ta)(ta)頭部(bu)位的(de)中相九輪(lun)放線滑車(che)疾馳(chi)而(er)去(qu)。瞬間，鮮(xian)紅色的(de)導(dao)線一(yi)牽八(ba)走(zou)板到(dao)達九輪(lun)滑車(che)后，“嘩(hua)”的(de)一(yi)聲(sheng)穿過放線滑車(che)，繼續向(xiang)前(qian)……
江蘇省送(song)變電公司(si)負責施工的1000千伏晉南(nan)荊線(xian)07標段(duan)(duan)，首牽架(jia)線(xian)段(duan)(duan)放(fang)線(xian)長度6.822千米，采用一牽八架(jia)線(xian)施工工藝。
目(mu)前國網(wang)交流(liu)(liu)公(gong)(gong)(gong)(gong)司(si)共在全線(xian)(xian)確定三種典型架(jia)線(xian)(xian)施(shi)工(gong)方案(an)，即：兩組一(yi)(yi)牽(qian)四(si)方案(an)、一(yi)(yi)牽(qian)八(ba)方案(an)和八(ba)牽(qian)八(ba)方案(an)。為(wei)了統一(yi)(yi)施(shi)工(gong)操(cao)作流(liu)(liu)程、質量標(biao)準和施(shi)工(gong)工(gong)藝，國網(wang)交流(liu)(liu)公(gong)(gong)(gong)(gong)司(si)堅持“試點先行(xing)、樣板引路”的(de)(de)做法，旨在驗(yan)證架(jia)線(xian)(xian)施(shi)工(gong)方案(an)的(de)(de)可行(xing)性和有效(xiao)性，保(bao)證架(jia)線(xian)(xian)施(shi)工(gong)的(de)(de)安全和質量。4月9日，國網(wang)交流(liu)(liu)公(gong)(gong)(gong)(gong)司(si)在承擔11標(biao)段建設的(de)(de)河南送變電(dian)公(gong)(gong)(gong)(gong)司(si)組織召開了兩組一(yi)(yi)牽(qian)四(si)方案(an)架(jia)線(xian)(xian)施(shi)工(gong)首牽(qian)試點準備工(gong)作會議。
由于(yu)承擔07標段施工(gong)任(ren)務的江蘇省送(song)變電(dian)公(gong)司(si)(si)(si)的組塔工(gong)程在(zai)全線首家通過(guo)了(le)國(guo)家電(dian)網公(gong)司(si)(si)(si)電(dian)力建設工(gong)程質(zhi)量監(jian)督總站檢查，具備(bei)架(jia)線試(shi)點條件，4月10日，國(guo)網交流公(gong)司(si)(si)(si)確定由江蘇省送(song)變電(dian)公(gong)司(si)(si)(si)在(zai)全線率先進行(xing)一牽八架(jia)線施工(gong)試(shi)點。
一(yi)牽(qian)八(ba)架線施(shi)工(gong)(gong)(gong)工(gong)(gong)(gong)藝在世(shi)界特高(gao)壓工(gong)(gong)(gong)程施(shi)工(gong)(gong)(gong)中(zhong)為第(di)一(yi)次(ci)采(cai)用(yong)，施(shi)工(gong)(gong)(gong)堪稱“世(shi)界第(di)一(yi)牽(qian)”。由于一(yi)牽(qian)八(ba)架線施(shi)工(gong)(gong)(gong)工(gong)(gong)(gong)藝的許多工(gong)(gong)(gong)器(qi)具及施(shi)工(gong)(gong)(gong)方法均(jun)為首次(ci)采(cai)用(yong)，此次(ci)試點施(shi)工(gong)(gong)(gong)對(dui)于驗證、完善和進一(yi)步推廣該工(gong)(gong)(gong)藝具有十分(fen)重要的意義(yi)。