Key Breakthrough in Datong-Tianjin 1000-kV UHV Project: GIS Workshop Capped in Hebei

Published: Feb 11, 2026 16:06

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Recently, the Datong-Tianjin South 1000-kilovolt UHV AC project, a key project in the national 14th Five-Year Plan for power development, has made a key breakthrough. Inside the 1000-kilovolt substation in Yangyuan County, Zhangjiakou, Hebei Province, the steel structure main body of a 533-meter-long GIS (Gas Insulated Switchgear) workshop was fully capped. The completion of this "giant steel corridor" marks the completion of the construction of the core building of the UHV project, laying a solid foundation for the subsequent installation of electrical equipment and the full-line operation of the project.

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