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The third rail is one of the methods of supplying electrical power to a train.
The third rail is usually placed just outside one of the running rails. It is insulated from the ground and energised to (typically) either 650, 750 or 850 Volts DC. the train has a 'shoe' which runs along this rail, picking up electricity. The return current is through the running rails, which are at 0 V DC.
Third rail is used in many underground (Métro) railways, and some commuter systems.
Third Rails where one of the first methods developed for supplying electricity to trains. They are a cheap option. But they are not used for new systems because they are considered unsafe (the electricity is on an exposed conductor), and 750 V DC is insufficient for heavy freight trains or modern high speed trains. Higher voltages cannot be used on third rail because it is too near the ground, and the electricity would short circuit.
Modern railway electrification systems use overhead wires ('catenary') at a voltage of 25000 Volts AC. Lower voltages are used for some overhead systems, for example 1500 V DC, 3000 V DC, and 17000 V AC.
What else can I help you with?
What is the amperage of the third rail?
In the UK the third rail is 750v DC 400amps the Overhead Live Electrical is 25000v AC
When was Emergency Third Rail Power Trip created?
Emergency Third Rail Power Trip was created in 1983-02.
What are the release dates for The Third Rail - 2001?
The Third Rail - 2001 was released on: USA: 25 February 2001 (ICG Awards)
What actors and actresses appeared in The Third Rail - 2001?
The cast of The Third Rail - 2001 includes: Joe Dempsey as Joe Rich Hutchman as Dickie Heidi Mokrycki as April
What is a third rail?
Its a separate rail (metal bar) that carries the voltage to power some trains.
What happens if you come in contact with the third rail of the Long Island Rail Road?
you will die of extreme electric shock because its an electric rail!
Who invented the third rail?
Granville T. Woods
Will you be electrocuted if you urinate on the third rail?
If you are in contact with the ground then yes, you would be.
How much voltage runs through the third rail?
750volts DC
How does transrapid trains get their power from the track?
Most use a "third" (or power) rail.
What federal program is known as the third rail?
Have a final in Poly Sci? Answer is Social Security.
What is third rail systems?
Third rail systems are a method of providing electrical power to trains and trams using a rail located alongside or between the tracks, rather than overhead wires. The third rail typically carries high-voltage electricity, which is picked up by a contact shoe on the train, allowing for efficient energy transfer. This system is commonly used in urban transit systems, such as subways and metros, due to its compact design and reduced visual impact compared to overhead lines. However, it poses safety risks, as the exposed rail can be hazardous to people and animals.
