Keio 8000 series |
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10-car set 8712 in November 2021 |
In service | 1992 – Present |
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Manufacturer | Nippon Sharyo, Tokyu Car Corporation |
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Replaced | 5000 series |
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Constructed | 1992 – 1999, 2009 |
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Entered service | 11 May 1992 |
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Refurbished |
- 2013 – 2019 (merging of 4-car and 6-car sets)
- 2013 – Present (traction system replacement)
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Number built | 245 cars (41 sets + 1 car) |
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Number in service | 244 cars (27 sets) |
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Number scrapped | 1 car (8728(I), accident damage) |
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Formation |
- 8/10 cars per trainset (present)
- 4/6/8 cars per trainset (as built)
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Fleet numbers |
- 8701 – 8714 (10-car sets)
- 8721 – 8733 (8-car sets)
- Previously:
- 8701 – 8714 (6-car sets)
- 8801 – 8814 (4-car sets)
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Capacity | 143 (end cars) 154/155 (intermediate cars) |
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Operators | Keio Corporation |
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Depots | Wakabadai, Takahatafudō |
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Lines served | KO Keio Line |
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Car body construction | Ivory painted steel (cab ends) Stainless steel (body) |
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Car length |
- 20,000 mm (65 ft 7 in) (full length)
- 19,500 mm (64 ft 0 in) (body length)
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Width |
- 2,845 mm (9 ft 4.0 in) (full width)
- 2,770 mm (9 ft 1 in) (body width)
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Height | 4,055 mm (13 ft 3.6 in) (car without pantograph) 4,100 mm (13 ft 5 in) (car with pantograph) |
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Entry | Level |
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Doors | 4 pairs of sliding doors per side |
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Wheel diameter | 860 mm (34 in)[1] |
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Wheelbase | 2,200 mm (87 in) (motored bogie) 2,100 mm (83 in) (trailer bogie)[1] |
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Maximum speed |
- 110 km/h (68 mph) (service)
- 120 km/h (75 mph) (design)
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Weight |
- 131 t (129 long tons; 144 short tons)(4-car sets)
- 204 t (201 long tons; 225 short tons) (6-car sets)
- 259 t (255 long tons; 285 short tons) (8-car sets)
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Traction system | GTO-VVVF |
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Power output | 150 kW (200 hp) per motor |
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Acceleration | 3.3 km/(h⋅s) (2.1 mph/s) (after high acceleration modification) 2.5 km/(h⋅s) (1.6 mph/s) (as built) |
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Deceleration | 3.5 km/(h⋅s) (2.2 mph/s) (full-service braking) 4.0 km/(h⋅s) (2.5 mph/s) (emergency braking) |
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Electric system(s) | 1,500 V DC overhead catenary |
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Current collector(s) | Pantograph |
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UIC classification | 2'2'+Bo'Bo'+Bo'Bo'+Bo'Bo'+Bo'Bo+2'2'+2'2'+Bo'Bo'+Bo'Bo'+2'2' (0-subseries ten-car sets) 2'2'+Bo'Bo'+Bo'Bo'+2'2'+2'2'+Bo'Bo'+Bo'Bo'+2'2' (20-subseries eight-car sets) |
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Bogies |
- TS-823A/TS-824[1]
- TS-1017/TS-1018 (sets 8732 and 8733 only)[1]
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Braking system(s) | Electronically controlled pneumatic brakes with regenerative braking |
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Safety system(s) | Keio ATC |
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Coupling system | Shibata |
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Headlight type | Sealed beam |
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Seating | Longitudinal |
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Track gauge | 1,372 mm (4 ft 6 in) |
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