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[–] 2 points 5 months ago (7 children)

We could use the railing to transmit power but nah we have to use it to house power source

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  • [–] 1 point 5 months ago (4 children)

    In what world is it reasonable to put a several kilovolt line on the ground? Even subways have safety problems with the third rail.

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  • [–] 1 point 5 months ago (3 children)

    Damn you want kilovolt? I was thinking few hundred at most. Over a few miles it would be fine to power like lights and low powered devices

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  • [–] 1 point 5 months ago (2 children)

    There is usually a current present in the rails already

    Either traction current, signalling current for track circuits, or both

    Depending on the way the signalling system has been engineered

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