China Railways SS8

SS8
Type and origin
Power type Electric
Builder Zhuzhou Electric Locomotive Works
Model SS8
Build date 1994 – 2001
Specifications
UIC classification Bo′Bo′
Gauge 1,435 mm (4 ft 8 1⁄2 in)
Length 17,516 mm (57 ft 5.6 in)
Locomotive weight 88 tonnes (87 long tons; 97 short tons)
Electric system(s) 25 kV 50 Hz AC Catenary
Current collection
method		 Pantograph
Performance figures
Power output 3,600 kW (4,830 hp)
Tractive effort 208 kN (46,760 lbf) starting
126 kN (28,330 lbf) continuous at 100 km/h (62 mph)
Locomotive brake Air and Dynamic
SS8 2001 in Nanjing West Railway Station

The SS8 is a 25kV 50 Hz AC electric locomotive used on the Peoples' Republic of China's national railway system. The SS8 is based on its predecessor, the SS5, and was developed and built by CSR Zhuzhou Electric Locomotive Works.

Production

A total of 245 (0001–0243, 2001–2002) SS8s have been built since 1994. Batch production commenced in 1997.

Routes

The only route they were used on was the Jingguang line, the railway line linking Beijing West Railway Station with Guangzhou, Guangdong. The SS8 currently serves the Guangdong Through Train and the Beijing-Kowloon Through Train.

Speed record

On June 24, 1998, the SS8 broke the Chinese rail speed record by achieving a top speed of 240 km/h (150 mph) on a test run between Xuchang and Xiaoshangqiao. The locomotive used was fleet number 0001.

Use on KCR

When the Guangzhou–Shenzhen Railway was electrified, China Railway extended through trains into Hong Kong via the Kowloon–Canton Railway (KCR) East Rail Line. These trains were initially hauled by an SS8 locomotive but their pantographs were considered harmful to KCR's catenary even after necessary conversions had been made. So, for a long time, China Railways DF11 diesel locomotives were used. After KCR provided their technical requirements of HK-compliance pantographs to China Railway, the company adapted some of their SS8's in order to meet the pantograph requirements. As of March 2010, the SS8 is still the only China Railway electric locomotive allowed to access Hong Kong.

External links

References

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