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railway transit
railway transit

Many rail transit systems are equipped with a large number of sensitive electrical and electronic devices, and the buildings, systems, and associated electronic equipment themselves are vulnerable to lightning strikes and other sources of electromagnetic interference.

In daily operations, rail transit systems are affected by overvoltages caused by lightning surges, power system faults, and the relatively complex electromagnetic environment in lines and stations. These factors can adversely impact the stable operation of the system to some extent.