文章來源：國家(jia)電網公(gong)司 發布時間：2010-06-08
6月2日上午(wu)，500千伏靜安（世博）變電站進(jin)線青年工(gong)程(cheng)在(zai)上海浦東成山路開工(gong)。該工(gong)程(cheng)是目(mu)前世界(jie)上線路長度最(zui)長、接頭數量最(zui)多(duo)的(de)500千伏電纜工(gong)程(cheng)，工(gong)程(cheng)計劃于(yu)2010年3月竣工(gong)。
由(you)上海(hai)(hai)電(dian)(dian)力電(dian)(dian)纜(lan)工(gong)(gong)程(cheng)有限公司(si)施工(gong)(gong)的500千伏(fu)世(shi)博(bo)變進線(xian)工(gong)(gong)程(cheng)，是(shi)為緩解上海(hai)(hai)市(shi)中心城(cheng)區供電(dian)(dian)壓力，確(que)保2010年世(shi)博(bo)會(hui)電(dian)(dian)力供應的一(yi)項重大工(gong)(gong)程(cheng)。工(gong)(gong)程(cheng)自浦東三林變電(dian)(dian)站至浦西靜安(世(shi)博(bo))地下變電(dian)(dian)站，全線(xian)雙回(hui)500千伏(fu)電(dian)(dian)纜(lan)全部敷設(she)于新建電(dian)(dian)力隧(sui)道內，隧(sui)道經北京西路(lu)至華夏(xia)西路(lu)全長近16千米(mi)，隧(sui)道最大直徑(jing)達(da)(da)(da)5.5米(mi)，全線(xian)設(she)電(dian)(dian)纜(lan)工(gong)(gong)作井(jing)15座，最深處位于地下29米(mi)，共有500千伏(fu)電(dian)(dian)纜(lan)中間接頭147相，GIS終(zhong)端12相。工(gong)(gong)程(cheng)電(dian)(dian)纜(lan)在隧(sui)道中采用“品”字形排列，設(she)計容量達(da)(da)(da)100萬千瓦，電(dian)(dian)纜(lan)截(jie)面達(da)(da)(da)到2500平方毫米(mi)，單盤電(dian)(dian)纜(lan)分(fen)別為640米(mi)和(he)720米(mi)，單盤重量都超過30噸(dun)。
作為世界領先(xian)的(de)大型工(gong)(gong)程，工(gong)(gong)程面臨敷設施工(gong)(gong)路徑長、工(gong)(gong)井(jing)深、電(dian)纜重、隧(sui)(sui)道通(tong)信(xin)困難(nan)等諸多難(nan)點。為確保工(gong)(gong)程按(an)質按(an)期完成，電(dian)纜公司在敷設施工(gong)(gong)中(zhong)，采(cai)用(yong)(yong)500千伏電(dian)纜專(zhuan)用(yong)(yong)放線架，結合電(dian)動(dong)導(dao)輪和(he)履帶式輸送機變頻聯動(dong)敷設，確保電(dian)纜敷設安全、可靠、高效。在隧(sui)(sui)道通(tong)信(xin)方面，采(cai)用(yong)(yong)隧(sui)(sui)道專(zhuan)用(yong)(yong)通(tong)信(xin)系(xi)統(tong)，大大提高了工(gong)(gong)作效率。在接(jie)頭(tou)施工(gong)(gong)中(zhong)，采(cai)用(yong)(yong)自主開發的(de)電(dian)纜隧(sui)(sui)道接(jie)頭(tou)環境(jing)監(jian)控系(xi)統(tong)，對潔(jie)凈度(du)(du)、濕度(du)(du)、溫度(du)(du)進行全面監(jian)控，確保超凈的(de)接(jie)頭(tou)環境(jing)。