Tobu 5000 series

The Tobu 5000 series (東武5000系, Tōbu 5000-kei) was a DC electric multiple unit (EMU) commuter train type operated by the private railway operator Tobu Railway in Japan between 1979 and 2006.

Tobu 5000 series
5050 series set 5155 in July 2005
In service1979–2006
Constructed1978–1986
Number built162 vehicles
Number in serviceNone
Formation2/4/6 cars per trainset
Operator(s)Tobu Railway
Depot(s)Kasukabe, Shinrinkoen
Line(s) servedTobu Isesaki Line, Tobu Nikko Line, Tobu Noda Line, Tobu Ogose Line, Tobu Tojo Line, Tobu Utsunomiya Line
Specifications
Car body constructionSteel
Car length20 m (65 ft 7 in)
Traction systemResistor control
Electric system(s)1,500 V DC, overhead catenary
Track gauge1,067 mm (3 ft 6 in)

The 5000 series was created between 1978 and 1986 by modernizing the entire fleet of 162 former 7800 series EMU cars, built between 1953 and 1961, by adding new steel bodies based on the 8000 series design. The fleet was subdivided into 5000, 5050, and 5070 series types.[1]

Variants
  • 5000 series: 4-car 5000 series and 2-car 5500 series sets
  • 5050 series: 4-car 5050 series and 2-car 5550 series sets
  • 5070 series: 6-car sets

5000 series
7800 series from which the 5000 series sets were converted

The first 12 former 7800 series cars were rebuilt between November 1978 and August 1979, reformed as two four-car 5000 series sets and two two-car 5500 series sets. These sets were initially not air-conditioned, and used the ventilators and motor generators removed from 8000 series sets that had been refurbished with air-conditioning.[1] These four sets were also subsequently modified with air-conditioning between July 1984 and March 1985.[1]

The 5000 series sets were all withdrawn by 2003.[2]

Formations

The four-car 5000 series and two-car 5500 series sets operated on the Tobu Tojo Line, and were formed as follows with the 5100 and 5500 cars at the Ikebukuro end.[1]

4-car 5000 series
Designation McTMTc
Numbering 5100520053005400

The 5300 cars were fitted with two pantographs.

2-car 5500 series
Designation McTc
Numbering 55005600

The 5500 cars were fitted with one pantograph.

5050 series
5050 series set 5157 in June 2006

Following on from the earlier 5000 series sets, a total of 72 7800 series cars were rebuilt between 1981 and March 1984 as two-car 5550 and four-car 5050 series sets.[2] Unlike the earlier 5000 series sets, the 5050 series sets were air-conditioned.[3]

The trains were removed from regular service in late 2006, with a sayonara final run on 16 December,[4] and were entirely withdrawn by February 2007.[3]

Formations

The four-car 5050 series were formed as follows.[1]

4-car 5050 series
Designation TcMMTc
Numbering 5150525053505450

The 5250 cars were fitted with two pantographs.

2-car 5550 series
Designation McTc
Numbering 55505650

The 5550 cars were fitted with one pantograph.

5070 series
Noda Line 5070 series set 5182 in September 2004

13 six-car 5070 series sets (78 vehicles) were built between June 1984 and March 1986 by modernizing former 7800 series EMU cars with new 8000-series-style bodies and air conditioning.[5] The fleet operated on the Noda Line, but were gradually replaced from 1997 by six-car 8000 series EMUs displaced by the arrival of new 30000 series EMUs on the Tobu Isesaki Line, with the entire fleet withdrawn from service by the start of the revised timetable on 19 October 2004.[6]

Formations

The 6-car 5070 series sets were formed as follows.[1]

Designation TcMMTMTc
Numbering 517052705370547055705670

The 5270 cars were fitted with two pantographs, and the 5570 cars were fitted with one pantograph.

References
  1. Iijima, Iwao (July 2002). 私鉄の車両２４　東武鉄道 [Private Railway Trains 24: Tobu Railway]. Tokyo, Japan: Neko Publishing Co., Ltd. pp. 60–65. ISBN 978-4-87366-307-4.
  2. 東武鉄道車両カタログ２００６（通勤車篇） [Tobu Rolling Stock Catalogue 2006 (Commuter Stock)]. Tetsudō Daiya Jōhō Magazine. Vol. 35 no. 263. Japan: Kōtsū Shimbun. March 2006. pp. 42–44.
  3. 東武鉄道 5050系 [Tobu 5050 series]. Tetsudo Hobidas (in Japanese). Japan: Neko Publishing. June 2007. Retrieved 1 November 2012.
  4. Kusui, Toshihiko (January 2015). 大手私鉄10年間の車両のうごき [Major Private Railway Rolling Stock Changes over the past 10 years]. Japan Railfan Magazine (in Japanese). Vol. 55 no. 645. Japan: Koyusha Co., Ltd. p. 9.
  5. 東武鉄道 5070系 [Tobu 5070 series]. Tetsudo Hobidas (in Japanese). Japan: Neko Publishing. January 2008. Retrieved 1 November 2012.
  6. 東武野田線ダイヤ改正で旧型5070系電車引退 [Old 5070 series EMUs withdrawn with Tobu Noda Line timetable revision]. Railway Journal. 39 (459): 102. January 2005.
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