2023-01-04
Sudden! Hanging plastic cloth in Beijing-Shanghai High-Speed Rail catenary, resulting in multiple trains delay
On the afternoon of April 14, some netizens reported that there were delays in trains and passenger detention at Beijing South Station, and some trains had been delayed for more than 1 hour. According to the Beijing Railway Administration, due to strong wind, a piece of plastic cloth was hung on the Beijing-Shanghai high-speed rail catenary, resulting in some trains delay. Affected by the accident, Jinan Railway Administration in the management of Qingdao, Jinan and other stations have also appeared different degrees of train delay.
2023-01-04
Why is railway catenary afraid of wind, and afraid of "foreign body" intrusion
Railway equipment is mostly placed in open air and easily interfered by external interference. In particular, for power supply catenary equipment, after external interference, it will cause tripping power failure, affecting the normal operation of the train.
2023-01-04
Laser obstacle remover capable of night vision
Most transmission and distribution lines are bare metal wires without insulating layer protection, which are fixed to the pole tower through insulators to realize power transmission. However, foreign bodies such as advertising banners, plastic cloth, plastic bags, kites, kite lines, and fishing lines can easily wrap around exposed metal wires, and once such floating foreign bodies are soaked by rain, snow, fog, and exposure, they can easily cause faults such as metal wire interphase shorts or single-phase grounding, which leads to tripping resulting in power supply interruption and transmission line damage, and foreign bodies in accessible positions of humans and animals may cause casualties of humans and animals.
