As the Spring Festival travel rush slowly unfolds, hundreds of millions of people embark on the road back home. At four o'clock in the morning on January 26th, while most people were still asleep, the lights in the maintenance shed of a certain high-speed train depot were brightly lit. Technician Li fastened his seat belt, put on his helmet, checked each buckle of the differential, and prepared to climb onto the top of the high-speed train for maintenance work.

During the Spring Festival travel rush, the operation density of high-speed trains is high, and the maintenance work must be foolproof, "said Master Li. The differential in his hand can quickly lock in case of an accidental fall, and the seat belt securely connects him to the vehicle body. Combined with the safety helmet on his head, these three pieces of equipment form the "life protection chain" for the maintenance personnel of the high-speed train.

At the top of the 4-meter high-speed train, Master Li and his colleagues carefully inspected key components such as the pantograph and high-voltage equipment. The freezing weather brought by winter cold waves poses additional challenges to railway equipment, whose job is to ensure that every high-speed train can safely and punctually transport passengers home.

The inspection of the differential is particularly important, "said safety supervisor Wang Ming." We require every operator to test the locking function before use, and the safety belt fixing point must be double confirmed

During the Spring Festival travel rush, maintenance personnel like Mr. Li need to complete 30% more work than usual. They work late at night and early in the morning to avoid the operating hours of high-speed trains. Despite the hard work, Mr. Li said, "It's really worth it to think about how our job can help so many people safely return home for the Chinese New Year

As the sky gradually brightens, train after train of completed maintenance high-speed trains slowly exit the maintenance garage, about to carry passengers who are eager to return home and rush in all directions. Behind them, there are countless "high-altitude guardians" like Master Li silently guarding the safety of the Spring Festival travel rush, using their expertise and responsibility to build the first line of defense for railway transportation.