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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  3. Current collector - Wikipedia

    en.wikipedia.org/wiki/Current_collector

    Trolley pole wheel on top of the trolley pole of Twin City Rapid Transit Company No. 1300. A current collector (often called a "pickup") is a device used in trolleybuses, trams, electric locomotives and EMUs to carry electric power from overhead lines, electric third rails, or ground-level power supplies to the electrical equipment of the vehicles.

  4. List of railway electrification systems - Wikipedia

    en.wikipedia.org/wiki/List_of_railway...

    overhead line or; conductor rail, usually a third rail to one side of the running rails. Conductor rail can be: top contact: oldest, least safe, most affected by ice, snow, rain and leaves. Protection boards are installed on most top contact systems, which increases safety and reduces these affections.

  5. Traction power network - Wikipedia

    en.wikipedia.org/wiki/Traction_power_network

    A traction network or traction power network is an electricity grid for the supply of electrified rail networks. The installation of a separate traction network generally is done only if the railway in question uses alternating current (AC) with a frequency lower than that of the national grid, such as in Germany, Austria and Switzerland.

  6. Overhead line - Wikipedia

    en.wikipedia.org/wiki/Overhead_line

    The generic term used by the International Union of Railways for the technology is overhead line. [1] It is known variously as overhead catenary, overhead contact line (OCL), overhead contact system (OCS), overhead equipment (OHE), overhead line equipment (OLE or OHLE), overhead lines (OHL), overhead wiring (OHW), traction wire, and trolley wire.

  7. Contact rail - Wikipedia

    en.wikipedia.org/wiki/Contact_rail

    Contact rail may refer to: Overhead conductor rail; Third rail; Fourth rail; See also. Conduit current collection; Current collector; Ground-level power supply; Guide ...

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