文章來源：國家電(dian)網公(gong)司 發布時間：2009-02-28
2月28日6時30分，我國“西電東送(song)”的(de)主干(gan)道，國家(jia)電網(wang)(wang)重要的(de)省際(ji)電力“大動脈”—— 500千(qian)伏張（重慶(qing)張家(jia)壩）恩(en)（湖北(bei)恩(en)施）線(xian)全線(xian)貫通，恢復(fu)送(song)電，華中電網(wang)(wang)每天向(xiang)川渝輸(shu)送(song)的(de)電力從修復(fu)前的(de)100萬千(qian)瓦(wa)上(shang)升到200萬千(qian)瓦(wa)以上(shang)，不僅有效緩解了重慶(qing)、四川的(de)缺電狀態(tai)，而且大大增強了電網(wang)(wang)的(de)安全穩定性。
在(zai)(zai)這(zhe)次(ci)冰雪災害中，500千(qian)(qian)(qian)伏張(zhang)(zhang)(zhang)恩線(xian)(xian)(xian)因多座鐵(tie)(tie)塔受(shou)損(sun)，全(quan)(quan)(quan)線(xian)(xian)(xian)癱瘓，直接導致重(zhong)(zhong)(zhong)(zhong)慶(qing)、四川(chuan)(chuan)等地外購(gou)電(dian)(dian)嚴(yan)重(zhong)(zhong)(zhong)(zhong)受(shou)阻。張(zhang)(zhang)(zhang)恩雙回(hui)線(xian)(xian)(xian)是川(chuan)(chuan)渝電(dian)(dian)網(wang)與華(hua)中主網(wang)間(jian)連接的(de)重(zhong)(zhong)(zhong)(zhong)要(yao)通道之一，在(zai)(zai)受(shou)災停運期(qi)間(jian)，省間(jian)4回(hui)聯絡線(xian)(xian)(xian)減少到僅(jin)通過500千(qian)(qian)(qian)伏萬龍雙線(xian)(xian)(xian)相連，輸電(dian)(dian)能力降低50%。重(zhong)(zhong)(zhong)(zhong)慶(qing)由于電(dian)(dian)煤緊張(zhang)(zhang)(zhang)，冰雪災害和外購(gou)電(dian)(dian)困難，全(quan)(quan)(quan)市(shi)電(dian)(dian)力缺口已高達180萬千(qian)(qian)(qian)瓦，電(dian)(dian)量缺口3000萬千(qian)(qian)(qian)瓦時以上，占(zhan)全(quan)(quan)(quan)網(wang)的(de)30%。為(wei)了盡快(kuai)打(da)通這(zhe)條電(dian)(dian)力樞紐通道，受(shou)災嚴(yan)重(zhong)(zhong)(zhong)(zhong)的(de)華(hua)中電(dian)(dian)網(wang)已經無兵(bing)可調，大年初(chu)四，重(zhong)(zhong)(zhong)(zhong)慶(qing)市(shi)電(dian)(dian)力公(gong)司在(zai)(zai)自身受(shou)災、搶險(xian)任務(wu)十分(fen)繁重(zhong)(zhong)(zhong)(zhong)的(de)情(qing)況下，抽調一支(zhi)1000多人(ren)組(zu)成的(de)電(dian)(dian)力搶險(xian)“鐵(tie)(tie)軍(jun)”，千(qian)(qian)(qian)里馳援(yuan)，支(zhi)援(yuan)湖北恩施境內500千(qian)(qian)(qian)伏張(zhang)(zhang)(zhang)恩線(xian)(xian)(xian)受(shou)損(sun)區段的(de)修復工作。
這支被(bei)華中電(dian)(dian)網同行(xing)稱為“渝能鐵軍”的(de)(de)(de)(de)(de)重(zhong)慶市電(dian)(dian)力公司派出(chu)的(de)(de)(de)(de)(de)渝能建(jian)設集團員工(gong)，他們(men)對(dui)張恩線的(de)(de)(de)(de)(de)搶(qiang)修歷程，被(bei)認為是電(dian)(dian)力搶(qiang)險(xian)史上的(de)(de)(de)(de)(de)一個(ge)奇跡。他們(men)克服了當地(di)惡劣(lie)的(de)(de)(de)(de)(de)交通(tong)氣候條件，靠肩挑(tiao)背(bei)扛，翻山越嶺，在48小時內，將160多噸(dun)(dun)的(de)(de)(de)(de)(de)搶(qiang)險(xian)器材全(quan)部搶(qiang)運(yun)上山。要完成目前國內最大的(de)(de)(de)(de)(de)這基高63米、重(zhong)54噸(dun)(dun)的(de)(de)(de)(de)(de)直線鐵塔(ta)(ta)——316號塔(ta)(ta)的(de)(de)(de)(de)(de)組塔(ta)(ta)任(ren)務(wu)，按照正常速(su)度至少(shao)需(xu)要7天(tian)，而他們(men)只用了3天(tian)。為了搶(qiang)時間，參加搶(qiang)修的(de)(de)(de)(de)(de)電(dian)(dian)力工(gong)人(ren)分(fen)成兩班倒，實(shi)行(xing)24小時輪流(liu)作業。搶(qiang)險(xian)隊員頂(ding)風冒雪，通(tong)宵(xiao)奮戰，2月23日凌晨(chen)，完成了三基鐵塔(ta)(ta)的(de)(de)(de)(de)(de)組塔(ta)(ta)任(ren)務(wu)，并(bing)全(quan)面(mian)展開(kai)放線作業。2月26日，張恩線實(shi)現全(quan)線貫通(tong)，28日6時30分(fen)正式通(tong)電(dian)(dian)。
據悉(xi)，張恩線輸(shu)送(song)的100萬千(qian)瓦負荷中，有40萬千(qian)瓦將會落戶重(zhong)慶(qing)，相當(dang)于解(jie)決了重(zhong)慶(qing)80萬戶居民的用電問(wen)題(ti)。