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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク NSB El 4 ： ウィキペディア英語版 NSB El 4 NSB El 4 was a class of electric locomotive used by the Norwegian State Railways (NSB) to transport iron ore on the Ofoten Line. NSB had a total of five triple-locomotive sets. ==History== In 1923, Ofoten Line and the Swedish Iron Ore Line were electrified and NSB had to acquire electric locomotives to haul the trains. NSB chose to order five double-engine El 3 units and five triple-engine El 4 units for the purpose. The El 4 were built at NEBB, Thune and Hamar Jernstøberi. After World War II, the production of iron ore in Kiruna and Malmberget increased dramatically and the train length was increased, with the consequence that each train needed more propulsion. NSB chose to order eight new El 12 locomotives at the same time it combined the ten El 3 locomotives to make three triple-engine sets with one reserve. When the El 15 locomotives were delivered in 1967, the El 3 and El 4 units were taken out of service. None of the locomotives have been preserved. 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「NSB El 4」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.