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Railway electrification in Iran describes the past and present electrification systems used to supply traction current to rail transport in Iran with a chronological record of development, a list of lines using each system, and a history and a technical description of each system. The project is sometimes abbreviated to RAIELEC, in which ''RAI'' is the abbreviation of Islamic Republic of Iran Railways (Persian: برقی کردن راه آهن در ایران, abbr: بكرا). ==Early electrification: Tabriz-Jolfa== After initial negotiations in 1969, railway electrification in Iran started in 1975, with a contract with USSR to electrify the Tabriz to Jolfa route in East Azarbaijan Province near the border with the former Soviet Union. The work would include a Bogie exchange facility. The Tabriz-Jolfa line was originally established in 1916 (before the main network in 1938) with the wide gauge and was changed to standard gauge after connection of Tabriz to the national network. Tabriz-Jolfa is a single line rail track 146 km long with nine stations in between. The maximum grade is 2.8% and the minimum curve radius is 400m.The catenary voltage is 25KV with booster transformer.Three substations exist: in Tabriz, Marand and Jolfa with 4 or 3 single phase transformers from Alstom each having 15 MW of capacity supplying the power. The 8 locomotives used on this line with Bo-Bo configuration have been built by ASEA from Sweden based on RC4 type from SJ Rc family. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Railway electrification in Iran」の詳細全文を読む スポンサード リンク
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