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2012年6月20日,哈密南-郑州±800 kV特高压直流输电工程换流站土建主体施工全面开工,标志着“疆电外送”首个特高压直流输电项目进入实质性实施阶段。
On June 20, 2012, the main civil construction of the converter station of Hami South-Zhengzhou ± 800 kV UHVDC transmission project started in full swing, marking the first implementation of UHV DC transmission project with “Xinjiang Power Transmission” into the substantive implementation phase .