Rail overhead cables carry up to 25,000 volts of electricity to power trains

Monday 18 Jul 2011

Rail overhead cables carry up to 25,000 volts of electricity to power trains

Regions:: National

Rail overhead cables carry up to 25,000 volts of electricity to power trains

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Rail overhead cables carry up to 25,000 volts of electricity to power trains: Rail overhead cables carry up to 25,000 volts of electricity to power trains