文章來源：國家電網公司 發布時間：2009-04-14
4月10日，國網交流工(gong)程(cheng)(cheng)建設有(you)限公司在特高壓(ya)工(gong)程(cheng)(cheng)07標(biao)段N502號張力場成功(gong)進行架線(xian)施工(gong)首(shou)牽(qian)試點(dian)。這(zhe)標(biao)志著我(wo)國首(shou)個(ge)特高壓(ya)工(gong)程(cheng)(cheng)——1000千伏晉東(dong)南—南陽—荊門特高壓(ya)交流試驗(yan)示范工(gong)程(cheng)(cheng)導(dao)線(xian)架設施工(gong)正(zheng)式拉開帷幕(mu)。
“各(ge)就(jiu)各(ge)位，開(kai)牽(qian)！”11時(shi)58分，隨著(zhu)江蘇省(sheng)送(song)變電公司1000千伏晉(jin)南(nan)荊線(xian)07標(biao)段(duan)項目經(jing)理(li)一聲(sheng)令下(xia)，兩名分別操(cao)作(zuo)18噸(dun)和(he)24噸(dun)張力機(ji)的(de)(de)操(cao)作(zuo)人員同時(shi)轉動(dong)(dong)張力機(ji)啟動(dong)(dong)鑰匙。“轟——”機(ji)器轟鳴。在28噸(dun)牽(qian)引機(ji)的(de)(de)強大(da)牽(qian)引力下(xia)，直(zhi)徑為28毫米的(de)(de)鋼絲牽(qian)引繩牽(qian)著(zhu)八根(gen)LGJ-500/35鋼芯鋁絞線(xian)猛地沖向(xiang)藍天，向(xiang)356米遠處的(de)(de)N502號塔塔頭部位的(de)(de)中(zhong)相九輪放線(xian)滑(hua)車疾馳而去。瞬間，鮮紅色(se)的(de)(de)導線(xian)一牽(qian)八走板到達九輪滑(hua)車后，“嘩”的(de)(de)一聲(sheng)穿(chuan)過(guo)放線(xian)滑(hua)車，繼續向(xiang)前……
江蘇省送變電公司負責施工的1000千(qian)(qian)伏晉南(nan)荊線(xian)(xian)07標段，首牽架(jia)線(xian)(xian)段放線(xian)(xian)長(chang)度6.822千(qian)(qian)米(mi)，采用一牽八架(jia)線(xian)(xian)施工工藝。
目前國(guo)網交(jiao)流(liu)(liu)公司(si)(si)共在全線(xian)確定(ding)三種典型架(jia)線(xian)施工(gong)方(fang)案，即：兩(liang)組一牽(qian)四(si)方(fang)案、一牽(qian)八(ba)方(fang)案和(he)八(ba)牽(qian)八(ba)方(fang)案。為了統一施工(gong)操作流(liu)(liu)程、質量(liang)標(biao)準和(he)施工(gong)工(gong)藝(yi)，國(guo)網交(jiao)流(liu)(liu)公司(si)(si)堅持“試點先行、樣板引路”的(de)(de)做法，旨在驗證架(jia)線(xian)施工(gong)方(fang)案的(de)(de)可行性和(he)有效性，保證架(jia)線(xian)施工(gong)的(de)(de)安全和(he)質量(liang)。4月9日，國(guo)網交(jiao)流(liu)(liu)公司(si)(si)在承擔11標(biao)段建設的(de)(de)河南送變(bian)電(dian)公司(si)(si)組織召開了兩(liang)組一牽(qian)四(si)方(fang)案架(jia)線(xian)施工(gong)首牽(qian)試點準備工(gong)作會議(yi)。
由于(yu)承擔07標段(duan)施工(gong)任務的江蘇省(sheng)送變(bian)電公司的組塔(ta)工(gong)程在(zai)全線首家通過(guo)了國家電網公司電力建設工(gong)程質量監督總(zong)站檢(jian)查，具備架(jia)線試(shi)點條件(jian)，4月10日，國網交流公司確定由江蘇省(sheng)送變(bian)電公司在(zai)全線率先進行一(yi)牽八架(jia)線施工(gong)試(shi)點。
一牽八架線施工(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)藝在世(shi)界特(te)高壓(ya)工(gong)(gong)(gong)(gong)程施工(gong)(gong)(gong)(gong)中為第(di)(di)一次(ci)采用(yong)，施工(gong)(gong)(gong)(gong)堪稱“世(shi)界第(di)(di)一牽”。由于一牽八架線施工(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)藝的(de)許多工(gong)(gong)(gong)(gong)器具及施工(gong)(gong)(gong)(gong)方法(fa)均為首次(ci)采用(yong)，此(ci)次(ci)試點施工(gong)(gong)(gong)(gong)對于驗證、完善和(he)進(jin)一步推廣該工(gong)(gong)(gong)(gong)藝具有十分重(zhong)要的(de)意義。