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
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.

Technical details

MT ratio
- 0 subseries: 10-car set: 6M4T (six motor cars and four trailer cars; each motor car has four motors)
- 20 subseries: eight-car set: 4M4T
Motor output: 150 kilowatts (200 hp)
Gear ratio: 6.07
Drive mechanism: Parallel cardan
Traction control system: GTO-VVVF
Headlights: Sealed beam
Destination indicators: roller-blind or 3-color LED
Passenger information displays: 3-color LED (4 per car)
Seating arrangement (intermediate cars): 4-7-7-7-4 on longitudinal bench seats

Body

The body is stainless steel. The front is steel.

Driver's cab

"T" shape one handle master-controller system. Analog (formerly digital^{[citation needed]}) speedometer. TNS (Train Navigation System).

Acceleration: 4 notch
Deceleration: 7 notch + emergency

Formations

As of 1 April 2015^[update], the fleet consists of 14 ten-car sets and 13 eight-car sets (244 vehicles in total), formed as follows.^[2]

c=Driver's cab; T=trailer, M=motor

0-subseries ten-car sets

	← Shinjuku Keio-Hachiōji →

Designation	Tc	M	M	M	M	T		T	M	M	Tc
Numbering	8701 : 8713	8001 : 8013	8051 : 8063	8101 : 8113	8151 : 8163	8751 : 8763	+	8801 : 8813	8201 : 8213	8251 : 8263	8851 : 8863
Numbering	8714	8014	8064	8114	8164	8514	+	8564	8214	8264	8864

20-subseries eight-car sets

	← Shinjuku Keio-Hachiōji →

Designation	Tc	M	M	T	T	M	M	Tc
Capacity (total)	143	155	154					143
Numbering	8721 : 8733	8021 : 8033	8071 : 8083	8521 : 8533	8571 : 8583	8121 : 8133	8171 : 8183	8771 : 8783

Interior

Interior of car in original condition
Priority seats of car in original condition
Interior of a refurbished car
Priority seats of a refurbished car
Interior of a renewal car
Priority seats of a renewal car
Driver's cab
Driver's cab with analog speedometer

History

The first 8000 series trains were introduced in 1992.^[3]

Six-car and four-cars sets (and occasionally a pair of four-car sets) used to be operated on splitting services which separated and re-joined at Takahatafudō Station until 2006. From 2013 to 2019, all six- and four-car 0-subseries sets underwent a refurbishment program. Among several technical upgrades, the cabs of the two inner ends were removed to form 10-car sets.^[3]

The 8000 series trains are used exclusively on Keio Corporation lines. Thus, unlike some other Keio trains, they do not continue past Shinjuku on to the Toei Shinjuku Line.

Set 8705F was involved on the October 2021 Tokyo attack.

Special liveries

Set 8713 received a special all-over green livery in September 2009 evoking the livery carried by the former 2000 series trains.^[4]

Set 8713 in special all-over green livery in November 2021

References

^ ^a ^b ^c ^d "TS-823A TS-824 ／京王電鉄8000系｜台車近影｜鉄道ホビダス" [TS-823A TS-824 / Keio Electric Railway 8000 series]. rail.hobidas.com (in Japanese). Archived from the original on 17 April 2015. Retrieved 7 October 2021.
^ 私鉄車両編成表 私鉄車両編成表 2015 [Private Railway Rolling Stock Formations - 2015] (in Japanese). Japan: Kotsu Shimbunsha. 23 July 2015. ISBN 978-4-330-58415-7.
^ ^a ^b 私鉄車両年鑑 2013: 大手15社営業用車両完全網羅 私鉄車両年鑑2013 [Japan Private Railways Annual 2013] (in Japanese). Tokyo, Japan: Ikaros Publications Ltd. 20 March 2013. p. 153. ISBN 978-4-86320-693-9.
^ 高尾山をイメージしたラッピング車両を運行 [Train to run with wrapping livery with Mt Takao theme] (PDF). News release (in Japanese). Japan: Keio Corporation. 24 September 2015. Archived (PDF) from the original on 6 October 2017. Retrieved 6 October 2017.

[8000_ts823-4-1] "TS-823A TS-824 ／京王電鉄8000系｜台車近影｜鉄道ホビダス" [TS-823A TS-824 / Keio Electric Railway 8000 series]. rail.hobidas.com (in Japanese). Archived from the original on 17 April 2015. Retrieved 7 October 2021.

[jrrprivate2015-2] 私鉄車両編成表 私鉄車両編成表 2015 [Private Railway Rolling Stock Formations - 2015] (in Japanese). Japan: Kotsu Shimbunsha. 23 July 2015. ISBN 978-4-330-58415-7.

[private2013-3] 私鉄車両年鑑 2013: 大手15社営業用車両完全網羅 私鉄車両年鑑2013 [Japan Private Railways Annual 2013] (in Japanese). Tokyo, Japan: Ikaros Publications Ltd. 20 March 2013. p. 153. ISBN 978-4-86320-693-9.

[keio20150924-4] 高尾山をイメージしたラッピング車両を運行 [Train to run with wrapping livery with Mt Takao theme] (PDF). News release (in Japanese). Japan: Keio Corporation. 24 September 2015. Archived (PDF) from the original on 6 October 2017. Retrieved 6 October 2017.

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