I have seen a news that the former Ministry of Railways demanded that all diesel locomotives could not be retired, and that they should be retained for war to prevent war, and high-speed rail strikes in extreme weather.
I saw a lot of people talking about the Northeast, and the high-speed rail bullet train still runs on snowy days in the Northeast, why did the high-speed rail train stop when it snowed in Hubei? Here is an explanation, Hubei is freezing rain this time, freezing rain is different from snow, snow will not freeze immediately after falling, but it will take 24 hours of sub-zero temperature before freezing, and the freezing rain will freeze immediately after the freezing rain, so Hubei's electrified high-speed rail railway power supply system will freeze on the spot after freezing rain, and once the power supply system of the electrified railway is frozen, the power supply system will fail, resulting in the power supply voltage is too low, once the voltage is too low, the railway catenary will be powered off, once the catenary is powered off, The electric locomotive can not run, in this case, only the ordinary speed passenger train of the diesel locomotive pulling with the KD25G or KD25K type air-conditioning power generation car can run, the air-conditioned power generation car relies on diesel power generation, and generates electric energy to supply power to the train carriage by burning diesel oil, so the general speed passenger train with the air-conditioned power generation car does not need to rely on the locomotive power supply, so the diesel locomotive can pull such a general-speed passenger train to run on the electrified railway that is power-off.
Experts in our country can learn from the icebreaker switches and icebreakers of the fighting nations!! The development of high-speed rail is absolutely correct, but why not take into account the de-icing and snow-melting devices and these ice-breaking devices? Is it just to keep costs down?