新疆伊犁—库车Ⅱ回750千伏工程开工 天山南北再添电力大动脉|亚洲蜜桃精久久久久久久久久久久
中新网乌鲁木齐11月20日电 (张杨 滚艳 阿音格 孙锐航)11月20日,新疆伊犁—库车Ⅱ回750千伏输变电工程正式开工,标志着新疆将新增一条贯通天山南北的电力大动脉,工程建成后南北疆电力互济能力将提升290万千瓦,为区域能源优化配置注入强劲动能。

作为国家“十四五”电力发展规划重点工程、新疆环天山西段750千伏环网重要组成部分,该工程起于伊犁尼勒克县750千伏伊犁变电站,止于阿克苏库车市750千伏库车变电站,途经伊犁哈萨克自治州、兵团第四师等多地,全线海拔跨度700至3750米,新建铁塔741基、线路总长371.4千米,总投资18亿多元。工程投运后将实现北疆风电与南疆光伏资源互补,保障伊犁盈余电力可靠送出,提升南疆与西北主网电力交换能力,助力新能源更大范围消纳。
工程建设面临多重挑战,118.507千米线路需翻越天山腹地,此处海拔超3700米,气候多变、常年积雪,有效工期仅5个月,且氧气稀薄导致材料运输和基础开挖难度剧增。“全线37%塔位车辆无法抵达,山地塔位占地狭窄,需架设174条索道运输257基铁塔及1.542万吨物资、2.056万立方米基础材料。”工程业主项目经理李俊介绍。此外,89基铁塔基础位于高山冻土区,岩石坚硬且冻土冻胀融沉易破坏设施,基坑开挖难度极大。
工程195千米线路穿越大龙池国家森林公园、巴音布鲁克草原等多个生态红线区域,国网新疆电力有限公司科学优化路径避开敏感区域,将作业面移至无人区。“90%铁塔比常规高出30多米,虽增加建设成本,但为原始云杉预留百年生长空间。”李俊表示,工程采用全方位不等高基础、索道架设减少土石方开挖,跨区域用无人机展放导引绳避免植被破坏,施工后还将通过覆盖防晒网、播撒草籽等方式恢复生态,实现建设与保护协同推进。
据介绍,工程预计2028年投运,届时将进一步补强环天山西段750千伏大环网,助力南北疆电力互供、水火风光互补。(完)
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