文章來源：國家電網公司 發布(bu)時間：2009-04-14
4月10日，國網交流(liu)工程建設(she)有限公司在特高壓工程07標段N502號張力場成功(gong)進行架線(xian)(xian)施工首牽試點。這標志著我國首個特高壓工程——1000千(qian)伏晉(jin)東南—南陽—荊(jing)門特高壓交流(liu)試驗(yan)示(shi)范工程導線(xian)(xian)架設(she)施工正式(shi)拉開帷幕。
“各就各位，開牽(qian)(qian)(qian)！”11時(shi)58分(fen)(fen)，隨(sui)著江蘇省送變(bian)電公司1000千(qian)伏晉南荊線(xian)(xian)07標(biao)段(duan)項目經理一聲(sheng)令下，兩名(ming)分(fen)(fen)別(bie)操作18噸和24噸張(zhang)力機的(de)(de)(de)操作人員(yuan)同時(shi)轉動張(zhang)力機啟(qi)動鑰匙(chi)。“轟——”機器(qi)轟鳴(ming)。在(zai)28噸牽(qian)(qian)(qian)引機的(de)(de)(de)強大牽(qian)(qian)(qian)引力下，直徑為28毫米的(de)(de)(de)鋼(gang)絲牽(qian)(qian)(qian)引繩牽(qian)(qian)(qian)著八(ba)(ba)根LGJ-500/35鋼(gang)芯鋁(lv)絞線(xian)(xian)猛地沖(chong)向(xiang)藍天(tian)，向(xiang)356米遠處的(de)(de)(de)N502號塔塔頭部位的(de)(de)(de)中相(xiang)九輪放線(xian)(xian)滑(hua)車(che)疾(ji)馳而去。瞬間(jian)，鮮紅色的(de)(de)(de)導線(xian)(xian)一牽(qian)(qian)(qian)八(ba)(ba)走(zou)板(ban)到達九輪滑(hua)車(che)后(hou)，“嘩”的(de)(de)(de)一聲(sheng)穿過放線(xian)(xian)滑(hua)車(che)，繼續向(xiang)前……
江蘇省(sheng)送變電公司(si)負責施工的1000千伏晉南(nan)荊(jing)線(xian)(xian)07標段(duan)，首牽(qian)架(jia)線(xian)(xian)段(duan)放線(xian)(xian)長度6.822千米，采用(yong)一(yi)牽(qian)八架(jia)線(xian)(xian)施工工藝。
目前(qian)國網交(jiao)流(liu)(liu)公(gong)司共在(zai)全線(xian)確定三種典型架線(xian)施(shi)(shi)工(gong)(gong)(gong)方案，即(ji)：兩組一(yi)(yi)(yi)牽四方案、一(yi)(yi)(yi)牽八(ba)方案和八(ba)牽八(ba)方案。為了統(tong)一(yi)(yi)(yi)施(shi)(shi)工(gong)(gong)(gong)操作(zuo)流(liu)(liu)程、質(zhi)量標準和施(shi)(shi)工(gong)(gong)(gong)工(gong)(gong)(gong)藝(yi)，國網交(jiao)流(liu)(liu)公(gong)司堅持(chi)“試點(dian)先行、樣板引(yin)路”的做法，旨在(zai)驗證架線(xian)施(shi)(shi)工(gong)(gong)(gong)方案的可行性(xing)和有(you)效性(xing)，保證架線(xian)施(shi)(shi)工(gong)(gong)(gong)的安全和質(zhi)量。4月9日，國網交(jiao)流(liu)(liu)公(gong)司在(zai)承擔11標段建設的河南送變電公(gong)司組織召(zhao)開了兩組一(yi)(yi)(yi)牽四方案架線(xian)施(shi)(shi)工(gong)(gong)(gong)首牽試點(dian)準備工(gong)(gong)(gong)作(zuo)會議(yi)。
由(you)(you)于承擔07標段(duan)施(shi)工(gong)任(ren)務的(de)江蘇省送(song)變(bian)電(dian)公(gong)(gong)司的(de)組塔工(gong)程在(zai)(zai)全(quan)線首家通過了國(guo)家電(dian)網公(gong)(gong)司電(dian)力建設工(gong)程質量監督總(zong)站(zhan)檢(jian)查，具備(bei)架(jia)線試點(dian)條件(jian)，4月10日，國(guo)網交流公(gong)(gong)司確定由(you)(you)江蘇省送(song)變(bian)電(dian)公(gong)(gong)司在(zai)(zai)全(quan)線率先進行一牽(qian)八架(jia)線施(shi)工(gong)試點(dian)。
一(yi)牽八架(jia)線(xian)施(shi)工(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)藝(yi)在(zai)世界特(te)高壓(ya)工(gong)(gong)(gong)(gong)程施(shi)工(gong)(gong)(gong)(gong)中(zhong)為第一(yi)次采用，施(shi)工(gong)(gong)(gong)(gong)堪稱“世界第一(yi)牽”。由于一(yi)牽八架(jia)線(xian)施(shi)工(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)藝(yi)的(de)許(xu)多(duo)工(gong)(gong)(gong)(gong)器具及施(shi)工(gong)(gong)(gong)(gong)方法均(jun)為首次采用，此次試點(dian)施(shi)工(gong)(gong)(gong)(gong)對于驗證(zheng)、完善和進一(yi)步推廣該工(gong)(gong)(gong)(gong)藝(yi)具有十分重要的(de)意義。