甘肃电网直升机带电消缺护航能源“大动脉”迎峰度夏

Core Viewpoint - The successful completion of helicopter live-line maintenance on the ±1100 kV Jiquan line enhances the reliability of the ultra-high voltage power transmission system in Gansu province during the peak summer demand period [2][4]. Group 1: Project Overview - The ±1100 kV Jiquan ultra-high voltage direct current transmission line is a key project in China's "West-to-East Power Transmission" initiative, spanning 3,319.2 kilometers and recognized as the highest voltage level, largest capacity, and longest distance transmission project in the world [2]. - Gansu province serves as a crucial corridor for the "West-to-East Power Transmission," with six ultra-high voltage transmission lines currently operational, totaling 5,886 kilometers of maintenance length [4]. Group 2: Operational Efficiency - The helicopter maintenance operation involved two locations (towers 3704 and 3708) and was completed in 63 minutes, showcasing an innovative model that significantly reduces time and physical effort compared to traditional methods [4]. - The operation was conducted under favorable weather conditions, with a temperature of 33 degrees Celsius, humidity at 25%, and wind speed of 1.2 meters per second, allowing for safe live-line work [2]. Group 3: Future Plans - In June 2025, Gansu's power grid plans to conduct 10 helicopter live-line maintenance operations, continuing to explore technological advancements in this field to ensure the safety and stability of power supply during peak summer demand [4].