High-speed rail is what still turn on the light during the day, not wasting electricity? The reason is closely related to you - China lighting network

Have you found a strange phenomenon? Both train and sd train, they drive during the day open the lamp. Car lights, the whole car is looking. Night lights, we can understand why daytime also turn on the light? 1, car lighting train on the road through the terrain is different, it through the hills, plains, basins. 。 。 。 。 。 Wherever the light will change with the outdoor environment. Such as in the shadow of the mountain slope is relatively dark outdoor light, in the direct sunlight the light is more dazzling, therefore, car Bai Tianliang lamp, in order to make passengers to change train in strong light. After all in the car, just rely on natural light is hard to meet the needs of everyone watching drama, eat snacks. And in this regard, our bosses 'Renaissance' train is doing great, have a variety of lighting control model car lights will automatically adjust according to the outdoor situation, at the same time the corridor at the top of the lamp brightness, the light changes in temperature, are free to adjust. 2, train headlamp car lights make myself clear, so why is a running train headlights open? Shuttle between trains in different provinces and cities, more than may be all the way through the tunnel, the lamp can be open thought train on road. In addition, the train will have different sections of weather, the way you may encounter when low visibility of the heavy rain, fog, snow, driving lamp for trains according to road, this is the same with car need to turn on the light. 3, warning to remind the train in the process of driving, railway signal is divided into visual and auditory signals. We often hear sirens in the station is a kind of audio signal, that is to tell the station staff, train station or the outbound. Light horn doesn't work, turn on the light is necessary. Because the speed of light is faster than sound, before the arrival of the train horns haven't, we will first see the lights of the car, light signal that is used to remind the train is coming. Lights and horns can cause people's attention, both in the platform staff, waiting passengers, or in the maintenance workers, remind everybody to keep a safe distance. Lights at the end of the day, is for the sake of safety, in order to alert passengers, railway people, pedestrians. YanZhiXiang

high iron pipe home