文章來源：國家電網公司 發布(bu)時間(jian)：2009-10-21
10月16日，浙江杭(hang)(hang)(hang)州西連瓶(ping)窯變(bian)、東接喬司(si)變(bian)的500千伏瓶(ping)窯——喬司(si)開口環入杭(hang)(hang)(hang)北(bei)變(bian)輸電線路(lu)和杭(hang)(hang)(hang)北(bei)變(bian)220千伏配套送出工程(cheng)首個雙回線路(lu)同(tong)時并(bing)網運行(xing)。
500千伏瓶喬開口環(huan)入(ru)杭(hang)(hang)北變輸電(dian)(dian)線(xian)路工(gong)(gong)(gong)程(cheng)(cheng)，是500千伏杭(hang)(hang)北輸變電(dian)(dian)工(gong)(gong)(gong)程(cheng)(cheng)的(de)重要組成(cheng)部分(fen)(fen)。工(gong)(gong)(gong)程(cheng)(cheng)新(xin)建基礎、桿塔31基，線(xian)路全長9.2千米，是杭(hang)(hang)北變接入(ru)的(de)首條500千伏輸電(dian)(dian)線(xian)路。杭(hang)(hang)北變220千伏送出(chu)工(gong)(gong)(gong)程(cheng)(cheng)為(wei)浙(zhe)江省首條架設四分(fen)(fen)裂導線(xian)的(de)220千伏線(xian)路工(gong)(gong)(gong)程(cheng)(cheng)。一系列重點電(dian)(dian)網(wang)工(gong)(gong)(gong)程(cheng)(cheng)的(de)投運，將有效改善杭(hang)(hang)州(zhou)城北地區(qu)的(de)電(dian)(dian)網(wang)結構。