Transperth EMU (Electric Multiple Unit) Traction voltage is at 25KV AC, The current that runs though the train is quite the mystery tho :P
Hope this answer wasn't too late for you :)
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The Public Transport Authority in Australia operates Transperth.
Transperth is a transportation service providing buses, trains and
ferries for the Perth metropolitan area.
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You can purchase it on Transperth website, or on the same bus,
you tell the bus driver to give you a ticket. The cost per journey
for adults is $0.80 and for students or family rider is free with
SmartRider.
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The duration of The Last Train - TV series - is 3000.0
seconds.