British Rail Class 317

British Rail Class 317
Greater Anglia Class 317/1 at Cambridge North in 2017
Refurbished standard class interior of a Greater Anglia Class 317/5
In service28 March 1983 – July 2022[1][2]
ManufacturerBritish Rail Engineering Limited
Built at
Family nameBR Second Generation (Mark 3)
Replaced
Constructed
  • 1981–1982
  • 1985–1987
Refurbished
Number built72
Number preserved2 vehicles
Number scrapped66
Successor
Formation
  • 4 cars per unit;
  • 317/6 units: DTSO-MSO-TSO-DTCO[3]
  • All others: DTSO-MSO-TCO-DTSO
Diagram
  • 317/1 DTSO vehicles: EE216, EE232, & EE235[note 1]
  • 317/1 MSO vehicles: EC202
  • 317/1 TCO vehicles: EH307
  • 317/2 DTSO vehicles: EE224 & EE225
  • 317/2 MSO vehicles: EC205
  • 317/2 TCO vehicles: EH308
Fleet numbers
  • As built:
  • 317/1: 317301–317348
  • 317/2: 317349–317372
  • Following renumberings:
  • 317/1: 317337–317348
  • 317/5: 317501–317515
  • 317/6: 317649–317672
  • 317/7: 317708–317710, 317714, 317719, 317722–317723, 317729, 317732
  • 317/8: 317881–317892
CapacityAs built: 292 seats
(22 first-class, 270 standard)
Operators
Specifications
Car body constructionSteel
Car length
  • DT vehs.: 19.830 m (65 ft 0.7 in)
  • Others: 19.920 m (65 ft 4.3 in)
Width2.816 m (9 ft 2.9 in)
Height3.774 m (12 ft 4.6 in)
Floor height1.144 m (3 ft 9.0 in)
DoorsDouble-leaf pocket sliding, each 1.010 m (3 ft 3.8 in) wide (2 per side per car)
WheelbaseOver bogie centres:
14.170 m (46 ft 5.9 in)
Maximum speed100 mph (160 km/h)
Weight
  • DTSO vehs.: 29.5 tonnes (29.0 long tons; 32.5 short tons)
  • MSO vehs.: 49.0 tonnes (48.2 long tons; 54.0 short tons)
  • TCO vehs.: 28.3 tonnes (27.9 long tons; 31.2 short tons)
Traction motors4 × GEC G315BZ
(248 kW (332 hp) each)
Power output990 kW (1,328 hp)
Electric system(s)25 kV 50 Hz AC overhead
Current collector(s)Pantograph
UIC classification2′2′+Bo′Bo′+2′2′+2′2′
Bogies
  • Powered: BREL BP20
  • Unpowered: BREL BT13
Minimum turning radius70.4 m (231 ft 0 in)
Braking system(s)Electro-pneumatic (disc)
(Westinghouse)
Safety system(s)
Coupling systemTightlock
Multiple workingWithin class
Track gauge1,435 mm (4 ft 8+12 in) standard gauge
Notes/references
Specifications as at November 1988,[4] except where otherwise noted.

The British Rail Class 317 is an electric multiple unit (EMU) passenger train constructed by British Rail Engineering Limited in two batches: 48 sets were produced in 1981–82 and 24 sets in 1985–87. They were the first of several classes of British Rail EMU to be based on the all-steel Mark 3 bodyshell, departing from the PEP-aluminium design which had spawned the earlier Class 313 to Class 315, Class 507 and Class 508. The Mark 3 bodyshell was also the basis of Class 318, Class 455 and the diesel Class 150. The Class 317 uses overhead alternating current electrification. All units were withdrawn in July 2022.

  1. ^ Butlin, Ashley (2001). British Multiple Units: Volume 3 Classes 302-390. Pulborough: Coorlea Publishing. p. 32. ISBN 0-948069-19-8.
  2. ^ Russell, David (September 2022). "Class 317s stood down by Greater Anglia". Rail Express. No. 316. p. 9.
  3. ^ "Class 317 - Angel Trains". angeltrains.co.uk. Archived from the original on 4 September 2021. Retrieved 29 December 2021.
  4. ^ a b "Vehicle Diagram Book No. 210 for Electrical Multiple Units (including A.P.T.)" (PDF). Barrowmore MRG. BRB Residuary Ltd. EC202, EC205, EE216, EE224–EE225, EE232, EE235, EH307–EH308 (in work pp. 74–75, 80–81, 148–149, 162–165, 174–175, 180–181, 376–379). Archived from the original (PDF) on 21 January 2015. Retrieved 21 January 2015.


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