What equipment is powered by rail power in train operations?

In train operations, car ventilating fans are a key piece of equipment that can be powered by rail power. Rail power refers to the electricity supplied by the overhead wires or the third rail system that trains use to operate effectively. Car ventilating fans are essential for maintaining a comfortable environment within the train cars, particularly by circulating air to prevent the interiors from becoming too hot or stuffy during operation.

Train systems often utilize rail power for various onboard equipment, but car ventilating fans specifically benefit from this power source as they are directly responsible for passenger comfort. While other systems like lighting and communication devices may also operate on electrical systems, they can have alternative power sources or batteries for backup, which does not apply as exclusively to ventilating fans when connected to rail power.