Back السكة الثالثة Arabic Kontakt relsi AZ তৃতীয় রেল Bengali/Bangla Tercer carril Catalan Napájecí kolejnice Czech Strømskinne Danish Stromschiene German Third rail English Kontaktrelo EO Tercer riel (alimentación) Spanish
A third rail is a metal railway track that is placed on either side of a train track to provide electrical power to trains traveling along the tracks.[1] They are often used on subways and local train services.[2] Before third rails, electricity was carried in overhead wires.[2]
- ↑ American Institute of Electrical Engineers (1921). Transactions of the American Institute of Electrical Engineers. American Institute of Electrical Engineers. p. 1625.
- ↑ 2.0 2.1 Marshall Cavendish Corporation (2008). Inventors and Inventions. Marshall Cavendish. p. 1474. ISBN 978-0761477617.