In the past two days, many trains in many places across the country have been affected by ice and snow weather, and there have been delays of varying degrees, which has aroused widespread concern.
Some netizens sat on the stagnant high-speed rail and photographed the green train galloping all the way, saying that "the green car is on the edge", and also proposed: The high-speed rail is affected by ice and snow weather, is the green car more advantageous?
In this regard, industry insiders said that in fact, just like a car, it is the difference between an electric car and a gasoline car. "Ordinary speed trains are mainly divided into diesel locomotives and electric locomotives, two traction methods, but now they are basically based on electricity, and high-speed rail is driven by electricity. ”
With the blessing of rain and snow, the temperature is low, and the catenary will be covered with ice, and the conductivity is not strong, resulting in the impact of trains driven by electricity. In the event of ice and snow, there is a difference between the normal speed train and the high-speed rail train, the high-speed rail uses electricity, while the general speed train can be replaced with a diesel locomotive traction (driven by burning oil).
In addition, freezing rain and snow can cause the rails to freeze, which can affect the speed and stability of the train. In this case, high-speed rail trains need to take emergency measures, such as slowing down, detouring, etc., and the punctuality may be reduced.
Under normal circumstances, catenary de-icing is the first choice for de-icing trains for mechanical de-icing, and manual de-icing is arranged when it cannot be implemented in time. When there is ice in the catenary tunnel and the upper span bridge, it is necessary to strengthen the observation and deal with it in time.