国网青海电力：首次开展5000米级高海拔带电作业

Core Viewpoint - The successful implementation of live working at high altitudes by the State Grid Qinghai Electric Power Company enhances the reliability of power supply in Tibet during peak demand periods, particularly around the Spring Festival [1][2]. Group 1: Project Overview - The ±400 kV Qinghai-Tibet interconnection project is China's first power transmission line into Tibet, completed and operational since the end of 2011, facilitating the integration of the Tibet power grid with the national grid [1]. - The project addresses the seasonal electricity shortages in Tibet, particularly during winter, and the challenges of hydropower consumption in summer [1]. Group 2: Technical Achievements - The live working operation at an altitude of 5211.5 meters is the first of its kind in a 5000-meter high-altitude area in China, showcasing advancements in power grid maintenance technology [2]. - The operation utilized a combination of drone and electric lift technology, allowing for precise and safe execution of tasks in extreme conditions, where oxygen levels are only 40% of that at sea level and temperatures can drop to -28°C [2]. Group 3: Operational Impact - The implementation of live working techniques minimizes power outages, thereby providing stronger support for local economic development and ensuring the well-being of residents [2]. - The company deployed elite teams and drones for comprehensive inspections of the power line, ensuring uninterrupted power supply during the high-demand period [1].