China Railways SS4

The Shaoshan 4 (Chinese: 韶山4) is a type of electric locomotive used on the People's Republic of China's national railway system. This locomotive was built by the Zhuzhou Electric Locomotive Works. The power supply was industrial-frequency single-phase AC, and the axle arrangement Bo′Bo′+Bo′Bo′.[1]

SS4
韶山4
SS4 0113
Type and origin
Power typeElectric
BuilderDatong Electric Locomotive Works
Zhuzhou Electric Locomotive Works
Ziyang Locomotive Works
Dalian locomotive works
ModelSS4
Build date1985–2006
Total produced1577
Specifications
Configuration:
​
 • UICBo′Bo′+Bo′Bo′
Gauge1,435 mm (4 ft 8 1⁄2 in)
Wheelbase4,300 mm (14 ft 1 in)
Length32,832 mm (107 ft 8.6 in) (between coupler centers)
Width3,100 mm (10 ft 2 in)
Height4,040 mm (13 ft 3 in)
Axle load23 t (22.6 long tons; 25.4 short tons)
Electric system/s25 kV AC Catenary
Current pickup(s)Pantograph
TransmissionAC – DC
Performance figures
Maximum speed100 km/h (62 mph)
Power output6,400 kW (8,600 hp)
Tractive effort628 kN (141,000 lbf) (starting)
436.5 kN (98,100 lbf) (continuous)

In 1993, Zhuzhou Electric Locomotive Works produced SS4G (Chinese: 韶4改). SS4G are very similar to standard SS4, apart from an improved electrical technology.[2]

SS4 Electric Locomotive is an eight shaft fixing reconnection heavy freight electric locomotive which based on two four-axle locomotives connected. One unit, SS4-0043, was damaged in a tunnel during the 2008 Sichuan earthquake.

Manufacturers

SS4s have been manufactured by several companies:

  • Zhuzhou Electric Locomotive Works (0001～0158;[3] 0159～1175; 1886[4])
  • Datong Electric Locomotive Works (6001～6168)
  • Ziyang Locomotive Works (3001～3002)
  • Dalian locomotive works (7001～7110; 7121～7241)
  • SS4 at Yangpingguan
  • SS4-0110
  • SS4-0177 at Luopoling Railway Station
  • SS4-1072
  • SS4-6111 at Shijiazhuang–Dezhou Railway
  • SS4-7193 at Datong-Qinhuangdao Railway
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See also

Preservation

References
  1. "SS4型电力机车" (in Chinese). TrainNets.com. 30 May 2015. Retrieved 2015-05-30.
  2. "SS4G型电力机车" (in Chinese). TrainNets.com. 30 May 2015. Retrieved 2015-05-30.
  3. These 158 locomotives are early model of SS4 Electric Locomotive.
  4. SS4G-1886 is the 4th Zhu De Locomotive.
  5. "四台新征集机车入驻，中国铁道博物馆东郊馆迎来新成员" (in Chinese). Sohu.com. 18 May 2017. Retrieved 2017-05-18.
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