（来源：天津日报） 越往隧道深处走，空气越潮湿，手电光所及之处，高高悬挂的高铁接触网如银色长龙延伸向远方。接触 网工郭鑫宇正站在5米多高的车梯上，用扳手紧固接触网上一处定位点的螺栓，当日白天安全检测监测 系统预警了这里的燃弧缺陷。联合检修专班接触网专业主管李鹏则带领队员仔细检查着绝缘器的磨损情 况、连接状态，确保列车通过时供电平稳。 记者看到，为了精准操作扳手、螺丝刀等工具，排查接触网零部件的松动、锈蚀等问题时，队员们只戴 着一层薄布的绝缘手套进行作业。"绝缘器就像是列车供电的'转换开关'，必须保证绝对可靠。"李鹏 说，白天他们要整理检修台账、研判风险、备料保养工具，夜间则投入紧张的检修，连轴转已是常态。 此时，前方隧道穹顶传来轻微的嗡嗡声，联合检修专班接触网工南丽江正操控无人机盘旋，屏幕上实时 传回高清画面。南丽江说："接触网的刚性悬挂部件隐蔽性强，人工检查容易有盲区。无人机能实现无 死角巡航，飞行误差不超过5厘米，60多种设备缺陷都逃不过它的'眼睛'。刚才我们就发现了1处螺栓轻 微松动，马上通知队员处置。"与此同时，联合检修专班电力工宁雪峰则手持红外测温仪，对配电箱、 电缆接头逐一测温，防止电缆接头温度过 ...

Core Viewpoint - The Spring Festival travel rush in 2026 has begun, highlighting the increased pressure on transportation operation guarantees in key areas, with a focus on "Eight Stations and Two Airports" and other critical locations for power supply assurance [1] Group 1: Transportation Hub Power Supply - State Grid Beijing Electric Power Company has developed a special power supply guarantee plan for transportation hubs during the Spring Festival, establishing a dedicated service mechanism for each hub to ensure safe and stable operation of electrical facilities [1] - Beijing Tongzhou Station, located in the city's sub-center, is operational for its first Spring Festival, with staff conducting safety checks on electrical equipment [1] - The integration of automated detection systems with manual inspections at transportation hubs enhances the reliability of power supply management [1] Group 2: Monitoring and Emergency Response - In Fengtai District, which includes major railway hubs like Beijing South Station, the power supply company employs smart monitoring systems for 24/7 oversight of electrical loads, ensuring rapid response to any anomalies [4] - Beijing Chaoyang Station, a key high-speed rail hub, has implemented detailed power supply checks for new facilities as part of its fifth anniversary operational readiness [4] Group 3: Airport Power Supply Assurance - Power supply companies at Beijing Daxing and Capital International Airports have formed specialized teams to conduct thorough inspections of power supply stations and charging facilities, ensuring safety and reliability for travelers [5] - The comprehensive inspection efforts have been completed for the "Eight Stations and Two Airports," with sufficient resources allocated to support safe and smooth travel during the Spring Festival [5]