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| operator = | formation = | numberbuilt = 211 trainsets (excluding 28 375/3 conversions) | numberservice = 239 trainsets | numberconstruction = | service = May 2003 - Current | weight = | carlength = | width = | height = | maxspeed = | poweroutput = | gauge = Standard gauge | electricsystem = | collectionmethod = }} The Class 377 Electrostar is a British electric multiple-unit train (EMU) built by Bombardier Transportation at its Derby Works, from 2001 to the present. The Electrostar family is the most numerous type of EMU built in the post-privatisation period of Britain's railways. The class forms the major part of the Govia Thameslink Railway (GTR) fleet for Southern and Thameslink services. They are primarily seen on services in the south of England. ==Description== The units work suburban services in south London, and main line commuter services to Sussex, Surrey, Kent and the South Coast, on which they replaced 4Cig and 4Vep slam-door stock which came to end of their useful lives and which did not meet modern health and safety requirements. Built in the early 2000s, the units had a troubled introduction; being fully air-conditioned, their higher power consumption compared to the slam-door Mark 1-based stock that they replaced led to major upgrades being required to the 750 V DC third-rail power supply used in the former Southern region. The collapse of Railtrack following the Hatfield accident further delayed this upgrade work, and the new stock did not enter squadron service until 2003. Class 377s are fitted with external CCTV. There is a disabled seating area, and both intermediate coaches have toilets. Bodyside power doors are electrically operated, a move away from the air powered systems of previous generation EMUs. Dual-voltage units are fitted with a Brecknell Willis high-speed pantograph, incorporating a pair of aerofoils on the pan knuckle to steady the pan head against the OLE contact wire. The configuration of a 5-car Class 377 unit is: *DMOC(A) - 2 motors on inner bogie, sander, auxiliary converter module *MOSL - 2 motors on inner bogie, standard toilet *PTSOL - pantograph, transformer, compressor, disabled toilet *MOS - 2 motors on inner bogie, standard class interior (only found on Class 377/6 and 377/7 units) *DMOS(B) - 2 motors on inner bogie, sander, auxiliary converter module In 4-car units the driving cars are composite, with the first-class saloon between the driving cab and the first set of passenger doors. 4-car units also do not contain the MOS coach. 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「British Rail Class 377」の詳細全文を読む スポンサード リンク
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