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].

Core Viewpoint - The successful completion of live working at an altitude of 5211.5 meters by the State Grid Qinghai Electric Power Company marks a new world record for ultra-high voltage live working at high altitudes, enhancing the safety and reliability of power supply in Tibet during the peak electricity demand period [1][2] Group 1: Project Overview - The ±400 kV Qinghai-Tibet interconnected project, known as the "Electricity Highway," is the first power line to enter Tibet, completed and put into operation at the end of 2011, enabling the integration of the Tibet power grid with the national grid [1] - The project addresses the seasonal electricity shortages in winter and the challenges of hydropower consumption in summer for the Tibet region [1] Group 2: Operational Achievements - The live working operation was conducted at two locations: the 1382 tower near the Tangula Mountain Pass at 5211.5 meters and the 1134 tower in the Yanshiping area at 4691 meters, both setting new world records for altitude [2] - The operation demonstrates the advanced capabilities of the power grid maintenance in extreme environments, ensuring minimal power outages and providing robust support for local economic and social development [2] Group 3: Safety Measures - The company utilized drones for comprehensive inspections of the power line, identifying and addressing potential hazards before the peak demand period, ensuring a stable power supply for the Tibetan people during the Spring Festival [2]

Core Viewpoint - The State Grid Corporation of China has successfully conducted the first high-altitude live working operation at an elevation of 5,211.5 meters, setting a new world record for ultra-high voltage live working at high altitudes [1][2] Group 1: Project Details - The operation took place near the Tangula Mountain Pass, specifically at tower 1382, which is at an elevation of 5,211.5 meters, and another operation was conducted at tower 1134 in the Yanshiping area at 4,691 meters, both setting new world records [2] - This operation is part of the ±400 kV Qinghai-Tibet interconnection project, which is China's first "electricity highway" into Tibet, completed in late 2011, enabling the integration of the Tibet power grid with the national grid [1] Group 2: Operational Significance - The Qinghai-Tibet interconnection project addresses the seasonal electricity shortages in Tibet, particularly during winter, and the challenges of hydropower consumption in summer [1] - The average elevation of the Chaila DC segment of the project is 4,650 meters, and it traverses permafrost, making maintenance operations extremely challenging [1] Group 3: Safety and Reliability - The operation is crucial as Tibet is currently experiencing peak electricity demand, and any minor issues could escalate into significant problems [1]