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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 type Electric Builder Datong Electric Locomotive Works Zhuzhou Electric Locomotive Works Ziyang Locomotive Works Dalian locomotive works Model SS4 Build date 1985–2006 Total produced 1577
Specifications Configuration: ​  • UIC Bo′Bo′+Bo′Bo′ Gauge 1,435 mm (4 ft 8+1⁄2 in) Wheelbase 4,300 mm (14 ft 1 in) Length 32,832 mm (107 ft 8.6 in) (between coupler centers) Width 3,100 mm (10 ft 2 in) Height 4,040 mm (13 ft 3 in) Axle load 23 t (22.6 long tons; 25.4 short tons) Electric system/s 25 kV AC Catenary Current pickup(s) Pantograph Transmission AC – DC
Performance figures Maximum speed 100 km/h (62 mph) Power output 6,400 kW (8,600 hp) Tractive effort 628 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

See also

• China Railways SS1
• China Railways SS3
• China Railways SS3B
• China Railways 8K
• China Railways 8G

Preservation

• SS4-0063: is preserved at Taiyuan Locomotive Depot, Taiyuan Railway Bureau
• SS4-0168: is preserved at the China Railway Museum[5]
• SS4-6001: is preserved at the China Railway Museum[5]

References

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