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| poweroutput = | brakes = Air, regenerative | operator = | gauge = }} The British Rail Class 350 ''Desiro'' is a class of electrical multiple unit built by Siemens AG in 2004–05, 2008–09 and 2013–14. Thirty of these units, designated Class 350/1, were built for use by Central Trains and Silverlink on regional express services and services on the southern section of the West Coast Main Line. A further 37 Class 350/2 were ordered by London Midland in late 2007. All 37 units were delivered and in service by July 2009. A further 20 units are currently on order, which will be split equally between London Midland and First TransPennine Express. The London Midland units will be designated under the Class 350/3 subfleet, and the First TransPennine Express units designated 350/4. The Siemens ''Desiro UK'' family also includes units of Classes 185, 360, 380, 444 and 450. ==Description== The Class 350/1 units were originally part of an order for thirty-two 5-car Class 450 units for South West Trains. However, they were never built as such. Of the 160 carriages ordered, 40 were diverted as an additional ten 4-car Class 450 units, and the remaining 120 were modified as thirty 4-car Class 350/1 units. The top speed of the fleet was originally , but all 350/1s were modified to allow running from December 2012, in order to make better use of paths on the busy West Coast Main Line.〔 A second batch of Class 350/2 units, intended to replace the Class 321 units, was delivered in late 2008 and during 2009. The first of the Class 350/2 was launched on 8 October 2008 and carried invited guests around the Wildenrath Test Track.〔("Siemens hands over first 'Desiro' EMU" ). ''Railway Herald''. Issue 151. Page 4. 13 October 2008. Retrieved 19 July 2011.〕 The last of the Class 350/2 fleet (350267) was officially delivered to London Midland on 30 July 2009. Class 350/2 differ from the Class 350/1 units in two key aspects: they have 3+2 seating in standard class (because they work short-hop commuter services, the Class 350/1 are 2+2 throughout, work longer distance services〔〔) and lack the dual-voltage capability of the 350/1. Class 350 trains are nearly identical to those of Class 450. The latter class is only fitted with traction equipment for Southern Region 750 V DC third rail, whilst the Class 350/1 units can operate from both 25 kV AC OLE, as is done in regular service, or alternatively third rail.〔 This dual-voltage capability came in useful when several units were leased to Southern in 2008-09 in order to cover for similarly equipped Class 377/2 units temporarily sub-leased to First Capital Connect, themselves to cover for delays in the construction of the 377/5 fleet.〔(Desiros for Loan to Southern ) - Southern Electric Group. Retrieved 6 June 2013.〕 All 350 units built since are not equipped for third-rail use but, like most modern British EMUs, can be retrofitted if necessary. Every set of doors has its own set of guard-operated door controls behind a lockable panel. The cabs have three radio systems - Cab Secure Radio (CSR), National Radio Network (NRN) and the newest system, GSM-R. CCTV and Flip Dot destination screens are fitted throughout the train. The only visual difference externally between a 350/1 and 350/2 is the carriage end connector doors on a 350/2 are 1/2 yellow and black. This visual difference has been kept for the 350/3 and 350/4 units, ordered by London Midland and First TransPennine Express respectively. 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 350」の詳細全文を読む スポンサード リンク
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