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When an equipment of a train becomes faulty and emits smoke, the relevant protective
device of the train will operate to cut off the electric power to the equipment.
Moreover, the railway tunnel is equipped with a ventilation system. If the amount
of the smoke is significant, the tunnel ventilation system will be activated to
extract the smoke. In the unlikely event that the equipment under the train catches
fire, the floor of the train car is so constructed to be fire resistant. As a result,
passengers inside a train saloon are adequately protected from the fire or smoke
from under the train car.
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