Railway contact network maintenance speed differential anti fall device safeguards the safety of high-altitude operations

The railway overhead contact system is the "power lifeline" of high-speed trains and conventional trains. It transmits electrical energy to the train traction system through wires suspended above the track, directly determining the stability and safety of train operation. This system mainly consists of contact wires, load-bearing cables, pillars, and wrist arms. It is exposed to outdoor environments for a long time and needs to withstand natural erosion such as wind, rain, snow, and lightning. Therefore, regular maintenance is crucial.

Contact network maintenance is often carried out at high altitudes, and workers need to climb onto pillars or maintenance vehicle platforms that are more than 6 meters high for operation. The risk of falling from high altitudes is the primary safety hazard. For this reason, a strict safety protection system has become a standard for operations: operators must wear safety helmets to resist tools or components that may fall off; Full body seat belts should be securely fastened to stable components to form the first line of protection; The speed difference anti fall device is a key equipment, which can instantly lock when personnel accidentally fall, minimizing the falling distance and avoiding serious injury accidents.

Before each maintenance, the staff will conduct a comprehensive inspection of the protective tools to ensure that the seat belts are not worn and the anti fall device locking function is normal. In the homework, two people work in pairs to supervise each other, strictly following the process of "hanging up first, crawling later, and unloading first". It is this dual guarantee of "tool protection+process specification" that ensures high safety standards for overhead contact system maintenance in high-altitude environments, and builds a "air defense line" for the smooth operation of railway arteries.