【流动的中国·春运第一现场】隧道深处的春运“夜行者”

Group 1 - The article highlights the efforts of the railway maintenance team during the peak return period of the Spring Festival travel rush, emphasizing the importance of their work in ensuring safe train operations [1][2] - The maintenance team conducts inspections during the "window period" at night, working at least six nights a week for nearly four hours each session to check for issues such as looseness and corrosion in the contact network components [1] - Advanced technology is utilized, including drones equipped with high-definition cameras and infrared thermal imaging to inspect the connection status of rigid suspension components [1][2] Group 2 - Electric power workers are performing infrared temperature checks on critical electrical equipment, including distribution boxes and cable joints, with at least two inspections required during the Spring Festival period [2] - The maintenance team operates continuously, managing repair logs and assessing risks during the day while conducting nighttime repairs, indicating a high level of commitment and workload [2] - The team ensures the reliability of the power supply by meticulously checking the wear and connection status of insulators, which are crucial for stable power delivery to trains [2]