The 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: 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) speedometer. TNS (Train Navigation System). Acceleration: 4 notch Deceleration: 7 notch + emergency
Formations , the fleet consists of 14 ten-car sets and 13 eight-car sets (244 vehicles in total), formed as follows. c=Driver's cab; T=trailer, M=motor
0-subseries ten-car sets Designation Tc M M M M T T M M TcNumbering 8701 : 8713 8001 : 8013 8051 : 8063 8101 : 8113 8151 : 8163 8751 : 8763 + 8801 : 8813 8201 : 8213 8251 : 8263 8851 : 8863 8714 8014 8064 8114 8164 8514 8564 8214 8264 8864
20-subseries eight-car sets Designation Tc M M T T M M TcCapacity (total)143155154143 Numbering 8721:8733 8021:8033 8071:8083 8521:8533 8571:8583 8121:8133 8171:8183 8771:8783
Interior
History The first 8000 series trains were introduced in 1992.
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.
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.
References