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Operation from the overhead conductor rails at Shaw's Cove Railroad Bridge in Connecticut Within a movable bridge that works by using a rigid overhead rail, You will find there's should changeover within the catenary wire procedure into an overhead conductor rail in the bridge portal (the last traction recent pylon ahead of the movable bridge). Suc

Trolleybuses make use of a second parallel overhead line for that return, and two trolley poles, a single contacting Each individual overhead wire. (Pantographs are normally incompatible with parallel overhead lines.) The circuit is concluded by utilizing both wires. Parallel overhead wires may also be utilised within the exceptional railways with