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二滩水电站位于雅砻江下游,距河口33公里。坝址控制流域面积116,360公里~2,占全流域面积的90%。多年平均流量1680米~3/秒。坝址距渡口市40多公里,距成昆铁路桐子林车站18公里,并有公路通过左岸,对外交通便利。本工程以发电为主兼顾其它综合利用要求,其中以解决木材过坝为重点。电站建成后供电渡口、西昌地区,并以50或75万伏超高压输电线与川南、川东相联,并入四川大电力系统。
Ertan Hydropower Station is located in the lower reaches of Yalong River, 33 km from the estuary. Dam control basin area of 116,360 km ~ 2, accounting for 90% of the basin area. Years of average flow 1680 meters ~ 3 / second. The dam site is more than 40 kilometers away from the ferry, 18 kilometers away from the Tongzilin Station of Cheng-Kun Railway, and has a highway through the left bank with convenient transportation. The project mainly focuses on power generation and other comprehensive utilization requirements, with the focus on solving the problem of over-dam of timber. After the completion of the power supply ferry, Xichang area, and to 50 or 750,000 volts EHV transmission lines and southern Sichuan, East Sichuan associated, into the Sichuan power system.