This page is about the transmission of electrical power to public transport vehicles. For transmission of bulk electrical power to general consumers, see Electric power transmission
. For powerlines mounted on pylons, see overhead power line
Two overhead conductor rails for the same track. Left: 1200 V DC for the Uetliberg railway (note that the pantograph has to be mounted asymmetrically to collect current from this rail). Right: 15,000 V AC for the Sihltal railway
Overhead lines or overhead wires are used to transmit electrical energy to trams, trolleybuses or trains at a distance from the energy supply point.
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