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SR class 3Sub : ウィキペディア英語版 | SR class 3Sub
This article covers the DC suburban electric multiple units introduced by the London and South Western Railway in 1915 and those introduced by the Southern Railway in the period up to 1939. The class designation 3SUB was not used by the Southern Railway, although some authors refer to these units as 3SUB. When rebuilt to four cars in the 1940s, they became class 4SUB. ==Background== The London, Brighton and South Coast Railway (LBSC) was the first of the three major companies that were to form the Southern Railway to electrify some of its lines in London. The lines were electrified at 6.7kV 25Hz AC, using overhead supply. Public services began on 1 December 1909. The London and South Western Railway (LSWR) electrified its lines on the third rail DC system. Public services began on 25 October 1915. In 1922, the South Eastern and Chatham Railway (SECR) sought permission to electrify certain lines in London. On 1 January 1923, the LSBC, LSWR and SECR were merged into the Southern Railway (SR).
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「SR class 3Sub」の詳細全文を読む
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