文章來(lai)源:國(guo)家電網公司 發(fa)布(bu)時間:2008-10-19
9月底,由(you)新疆送變電工(gong)程(cheng)公司(si)承擔的220千伏玉龍河(he)—莎車輸變電工(gong)程(cheng)首(shou)次采用飛艇展(zhan)放引繩新工(gong)藝(yi)。這一施工(gong)工(gong)藝(yi),不(bu)僅能使(shi)沿(yan)線(xian)農作物(wu)、樹木免受砍伐之苦(ku),使(shi)電力職工(gong)不(bu)再徒步跨越(yue)障礙,同時大大縮短了(le)工(gong)期、節約了(le)成本。
220千伏玉(yu)莎(sha)線由莎(sha)車220千伏變電(dian)(dian)(dian)所出線向東,跨(kua)(kua)越葉爾(er)羌河,通(tong)(tong)過澤(ze)普南部(bu),跨(kua)(kua)越315國(guo)道(dao),跨(kua)(kua)越提茲那(nei)甫河,通(tong)(tong)過葉城縣北部(bu),跨(kua)(kua)越315國(guo)道(dao),跨(kua)(kua)越喀(ka)(ka)拉(la)喀(ka)(ka)拉(la)河,進入(ru)和田玉(yu)龍220千伏變電(dian)(dian)(dian)所,線路全(quan)長286.278公(gong)里。如果(guo)按照以(yi)往電(dian)(dian)(dian)力施(shi)工展放引(yin)繩(sheng)(sheng)工序中人工牽(qian)引(yin)步行的(de)(de)方式通(tong)(tong)過農田、跨(kua)(kua)越河流、翻過高山,不但耗時耗力,而且影(ying)響到施(shi)工地點的(de)(de)植(zhi)被,青苗賠償成本也很高。為此,新疆(jiang)送變電(dian)(dian)(dian)首次將飛艇(ting)展放引(yin)繩(sheng)(sheng)新工藝應用到新疆(jiang)電(dian)(dian)(dian)網建設施(shi)工中。該公(gong)司引(yin)進的(de)(de)YS-7型(xing)飛艇(ting),艇(ting)囊(nang)用氦(hai)氣填充,充氣后自重僅為3公(gong)斤左右,飛艇(ting)一次最長牽(qian)放引(yin)繩(sheng)(sheng)的(de)(de)長度為2500米,續航時間40分鐘,每次起飛后,地勤人員接力遙控飛艇(ting)通(tong)(tong)過。