British Rail Class 315

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British Rail Class 315
Unit 315838 at Ilford.JPG
Class 315 unit at Ilford
In service 1980 - Current
Manufacturer BREL York
Refurbishment All 61 Greater Anglia sets 2006-present
Number built 61 trainsets
Formation 4 cars per trainset
Capacity 320 seats
Operator Greater Anglia
Specifications
Car length 19.80 m
Width 3.58 m
Height 2.82 m
Maximum speed 75 mph (121 km/h)
Weight 127.5 tonnes
Power output 656 kW
Voltage 25 kV AC Overhead
Gauge Standard gauge (1,435 mm)

British Rail Class 315 alternating current (AC) electric multiple units (EMU) were built by BREL at York works from 1980 to 1981. They were the fifth and final variety of British Rail's then-standard 1972 design for suburban EMUs, which eventually encompassed 755 vehicles and five Classes (Class 313/314/315/507/508). Like the Glasgow-based Class 314 units, they are only able to operate from 25 kV overhead line current collection. The fleet works inner-suburban services on the Great Eastern Main Line run by the train operating company Greater Anglia out of London Liverpool Street. Class 315s also work services from Liverpool Street to Chingford, Enfield Town, Hertford East and Cheshunt.

The future of the 315s[change | change source]

It is expected that the class 315s operating on the Great Eastern Main Line will be required to work until 2018, when Crossrail is expected to take over, and the oldest units will be 40 years old. At this time, it is unclear whether units operating West Anglia routes will be withdrawn and scrapped before 2018, or simply cascaded on to the Great Eastern Main Line.