文章來源(yuan)：國家電網(wang)公司 發布時間：2010-06-08
6月2日上(shang)午，500千伏靜安（世博）變電(dian)站進(jin)線青年(nian)工程(cheng)(cheng)在上(shang)海浦東成山(shan)路(lu)開工。該工程(cheng)(cheng)是(shi)目前世界上(shang)線路(lu)長(chang)度最長(chang)、接頭數(shu)量最多的500千伏電(dian)纜工程(cheng)(cheng)，工程(cheng)(cheng)計(ji)劃于2010年(nian)3月竣工。
由上海(hai)電(dian)力(li)電(dian)纜(lan)(lan)工(gong)程(cheng)有限公司施工(gong)的500千(qian)伏(fu)世博(bo)(bo)變(bian)進線(xian)工(gong)程(cheng)，是(shi)為緩解上海(hai)市中(zhong)心城區供(gong)電(dian)壓(ya)力(li)，確保2010年世博(bo)(bo)會電(dian)力(li)供(gong)應的一項重大工(gong)程(cheng)。工(gong)程(cheng)自浦(pu)(pu)東(dong)三林變(bian)電(dian)站(zhan)至(zhi)浦(pu)(pu)西(xi)靜安(世博(bo)(bo))地下變(bian)電(dian)站(zhan)，全線(xian)雙(shuang)回500千(qian)伏(fu)電(dian)纜(lan)(lan)全部敷設(she)于新建電(dian)力(li)隧道(dao)(dao)內，隧道(dao)(dao)經北京西(xi)路(lu)至(zhi)華夏西(xi)路(lu)全長近16千(qian)米(mi)，隧道(dao)(dao)最大直徑達(da)5.5米(mi)，全線(xian)設(she)電(dian)纜(lan)(lan)工(gong)作井15座，最深處位于地下29米(mi)，共有500千(qian)伏(fu)電(dian)纜(lan)(lan)中(zhong)間接頭(tou)147相(xiang)，GIS終端(duan)12相(xiang)。工(gong)程(cheng)電(dian)纜(lan)(lan)在隧道(dao)(dao)中(zhong)采用“品”字(zi)形排(pai)列，設(she)計容量達(da)100萬千(qian)瓦，電(dian)纜(lan)(lan)截面達(da)到2500平方(fang)毫米(mi)，單盤(pan)電(dian)纜(lan)(lan)分別為640米(mi)和720米(mi)，單盤(pan)重量都超過30噸。
作為世界領(ling)先的大(da)型(xing)工(gong)(gong)(gong)程，工(gong)(gong)(gong)程面(mian)(mian)臨敷設施(shi)(shi)(shi)工(gong)(gong)(gong)路徑長、工(gong)(gong)(gong)井深、電(dian)(dian)(dian)纜重、隧(sui)道(dao)(dao)通信困難等諸多難點。為確(que)保(bao)工(gong)(gong)(gong)程按(an)質按(an)期完成，電(dian)(dian)(dian)纜公司在敷設施(shi)(shi)(shi)工(gong)(gong)(gong)中(zhong)，采用(yong)(yong)(yong)500千伏電(dian)(dian)(dian)纜專(zhuan)用(yong)(yong)(yong)放(fang)線架(jia)，結(jie)合電(dian)(dian)(dian)動(dong)導輪和履帶式(shi)輸送機(ji)變頻聯動(dong)敷設，確(que)保(bao)電(dian)(dian)(dian)纜敷設安(an)全、可靠(kao)、高效。在隧(sui)道(dao)(dao)通信方面(mian)(mian)，采用(yong)(yong)(yong)隧(sui)道(dao)(dao)專(zhuan)用(yong)(yong)(yong)通信系統(tong)，大(da)大(da)提高了工(gong)(gong)(gong)作效率。在接(jie)頭(tou)施(shi)(shi)(shi)工(gong)(gong)(gong)中(zhong)，采用(yong)(yong)(yong)自主開發的電(dian)(dian)(dian)纜隧(sui)道(dao)(dao)接(jie)頭(tou)環境監控(kong)系統(tong)，對潔凈(jing)(jing)度、濕(shi)度、溫度進(jin)行全面(mian)(mian)監控(kong)，確(que)保(bao)超(chao)凈(jing)(jing)的接(jie)頭(tou)環境。