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A third rail, also known as a live rail, electric rail or conductor rail, is a method of providing electric power to a railway locomotive or train, through a semi-continuous rigid conductor placed alongside or between the rails of a railway track.
The third rail of a nation's politics is a metaphor for any issue so controversial that it is "charged" and "untouchable" to the extent that any politician or public official who dares to broach the subject will invariably suffer politically.
We have the largest third rail network in the world, powering electric trains, and it’s mostly found on tracks in the South East of England. When we talk about the third rail, we mean the live rail which provides electric power to a train through a conductor placed alongside the rails.
10 ott 2017 · This use of third rail dates to the dawn of the first subway systems, in the 1860s. The literal third rail makes for a powerful metaphor, and the term has been applied over the years to more than just controversial issues avoided by politicians.
13 set 2023 · The third rail electrification system, also known as the contact rail system, provides power to trains through a conductor rail placed alongside, or between, running rails. Trains have metal contact blocks, or ‘contact shoes’, which make contact with the conductor rail.
List of rail transport systems using third rail. Third rail railways predominantly operates in urban areas. Notable exceptions are (or were) mainline electrics of the former Southern Region of British Railways and a few interurban railways in the US.
A third rail is a method of providing electric power to a railway train, through a continuous rigid conductor placed alongside or between the rails of a railway track. It is used typically in a mass transit or rapid transit system, which has alignments in its own corridors, fully or almost fully segregated from the outside environment.
