What are the differences between trains running on the Qinghai-Tibet Railway and ordinary trains?

After the opening of the Qinghai-Tibet Railway, more and more people travel to Tibet by train. Many passengers don't know that the trains running on the Qinghai-Tibet Railway are very different from those running on other railway lines because they are totally enclosed. As we know, the Qinghai-Tibet Plateau is called the roof of the world, and the Qinghai-Tibet Railway is 960 kilometers long. It is a railway line built at an altitude of more than 4000 meters, and the highest point where the railway passes is 5072 meters above sea level.

In such a high place, the temperature and air pressure will definitely be much lower than that at low altitude, and the oxygen content will be lower than that at low altitude, and the ultraviolet rays will be particularly strong. Therefore, in order to provide a comfortable environment for passengers, the trains running on the Qinghai-Tibet Railway are equipped with oxygen production systems, and two oxygen supply modes, decentralized oxygen supply and decentralized oxygen supply, are adopted during the operation. In order to prevent oxygen from escaping in vain, all the trains running on the Qinghai-Tibet Railway are fully enclosed.

The Qinghai-Tibet Plateau often encounters strong winds and blizzards. In order to resist them, the sealing performance of trains must also be strengthened. The trains running on the Qinghai-Tibet Railway have special structures. There is an equipment cabin on the underframe of the car body, which can effectively protect the equipment under the car from rain, snow and sandstorm. The air conditioner on the roof is also equipped with dust storm prevention filter equipment, and the body adopts "airtight" body structure, which improves the sealing performance of the whole vehicle.

In addition, in order to prevent passengers from being harmed by ultraviolet rays, the glass of the train is also anti-ultraviolet.