文章來源：國家電網公司 發布時間(jian)：2009-10-21
10月(yue)16日，浙江杭州西連瓶窯(yao)變、東接喬司(si)變的500千伏(fu)瓶窯(yao)——喬司(si)開口環入(ru)杭北變輸電(dian)線(xian)路和杭北變220千伏(fu)配套(tao)送(song)出工程首個雙回線(xian)路同時并網運行。
500千(qian)(qian)伏瓶喬開口(kou)環(huan)入(ru)杭北(bei)變(bian)輸(shu)電線路(lu)工(gong)(gong)程(cheng)(cheng)，是(shi)500千(qian)(qian)伏杭北(bei)輸(shu)變(bian)電工(gong)(gong)程(cheng)(cheng)的(de)重要組成部分(fen)。工(gong)(gong)程(cheng)(cheng)新建(jian)基礎、桿塔31基，線路(lu)全長(chang)9.2千(qian)(qian)米，是(shi)杭北(bei)變(bian)接入(ru)的(de)首(shou)條500千(qian)(qian)伏輸(shu)電線路(lu)。杭北(bei)變(bian)220千(qian)(qian)伏送出工(gong)(gong)程(cheng)(cheng)為浙江省首(shou)條架設四(si)分(fen)裂導線的(de)220千(qian)(qian)伏線路(lu)工(gong)(gong)程(cheng)(cheng)。一系列重點電網工(gong)(gong)程(cheng)(cheng)的(de)投運(yun)，將有效改善杭州城(cheng)北(bei)地(di)區的(de)電網結構。