Keio 8000 series

Keio 8000 series
Keio 8000 series
	10-car set 8712 in November 2021
In service	1992 – Present
Manufacturer	Nippon Sharyo, Tokyu Car Corporation
Replaced	5000 series
Constructed	1992 – 1999, 2009
Entered service	11 May 1992
Refurbished	2013 – 2019 (merging of 4-car and 6-car sets); 2013 – Present (traction system replacement);
Number built	245 cars (41 sets + 1 car)
Number in service	244 cars (27 sets)
Number scrapped	1 car (8728(I), accident damage)
Formation	8/10 cars per trainset (present); 4/6/8 cars per trainset (as built);
Fleet numbers	8701 – 8714 (10-car sets); 8721 – 8733 (8-car sets); Previously:; 8701 – 8714 (6-car sets); 8801 – 8814 (4-car sets);
Capacity	143 (end cars); 154/155 (intermediate cars)
Operators	Keio Corporation
Depots	Wakabadai, Takahatafudō
Lines served	KO Keio Line
Specifications
Car body construction	Ivory painted steel (cab ends); Stainless steel (body)
Car length	20,000 mm (65 ft 7 in) (full length); 19,500 mm (64 ft 0 in) (body length);
Width	2,845 mm (9 ft 4.0 in) (full width); 2,770 mm (9 ft 1 in) (body width);
Height	4,055 mm (13 ft 3.6 in) (car without pantograph); 4,100 mm (13 ft 5 in) (car with pantograph)
Entry	Level
Doors	4 pairs of sliding doors per side
Wheel diameter	860 mm (34 in)
Wheelbase	2,200 mm (87 in) (motored bogie); 2,100 mm (83 in) (trailer bogie)
Maximum speed	110 km/h (68 mph) (service); 120 km/h (75 mph) (design);
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);
Traction system	GTO-VVVF
Power output	150 kW (200 hp) per motor
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)
Deceleration	3.5 km/(h⋅s) (2.2 mph/s) (full-service braking); 4.0 km/(h⋅s) (2.5 mph/s) (emergency braking)
Electric system(s)	1,500 V DC overhead catenary
Current collector(s)	Pantograph
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)
Bogies	TS-823A/TS-824; TS-1017/TS-1018 (sets 8732 and 8733 only);
Braking system(s)	Electronically controlled pneumatic brakes with regenerative braking
Safety system(s)	Keio ATC
Coupling system	Shibata
Headlight type	Sealed beam
Seating	Longitudinal
Track gauge	1,372 mm (4 ft 6 in)

The Keio 8000 series (京王8000系) is an electric multiple unit (EMU) train type operated by the private railway operator Keio Corporation on commuter services in the Tokyo area of Japan since 1992.

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