| South African Class 10E | |
|---|---|
| 10-044 at Klerksdorp, North West, 23 August 2007 | |
| Power type | Electric |
| Designer | Toshiba |
| Builder | Union Carriage and Wagon |
| Model | Toshiba 10E |
| Build date | 1985-1986 |
| Total produced | 50 |
| UIC classification | Co-Co |
| Gauge | 3 ft 6 in (1,067 mm) Cape gauge |
| Bogies | 4.06 m (13 ft 3.8 in) wheelbase |
| Wheel diameter | 1,220 mm (48.0 in) |
| Wheelbase | 13.46 m (44 ft 1.9 in) |
| Length | 18.52 m (60 ft 9.1 in) |
| Height | 4.12 m (13 ft 6.2 in) pantographs down |
| Axle load | 21,210 kg (20.9 long tons) |
| Locomotive weight | 125,000 kg (123.0 long tons) |
| Current collection method |
Pantographs |
| Traction motors | Six SE-218 |
| Transmission | 19/92 Gear ratio |
| Top speed | 90 km/h (56 mph) |
| Power output | Per motor: 540 kW (720 hp) 1 hour 515 kW (691 hp) continuous Total: 3,240 kW (4,340 hp) 1 hour 3,090 kW (4,140 hp) continuous |
| Tractive effort | 450 kN (100,000 lbf) starting 335 kN (75,000 lbf) 1 hour 310 kN (70,000 lbf) continuous at 35 km/h (22 mph) |
| Locomotive brakes | Regenerative & Rheostatic[1] |
| Train brakes | Air & Vacuum |
| Career | South African Railways Spoornet Transnet Freight Rail |
| Class | Class 10E |
| Power class | 3 kV DC |
| Number in class | 50 |
| Number | 10-001 to 10-050[2] |
| Nicknames | Breadbin |
| Delivered | 1985-1986 |
| First run | 1985 |
In 1985 and 1986 the South African Railways placed fifty Class 10E electric locomotives with a Co-Co wheel arrangement in main line service.[2]
Contents |
The Class 10E 3 kV DC electric locomotive was designed for the South African Railways (SAR) by Toshiba of Japan and built by Union Carriage and Wagon (UCW) in Nigel, Transvaal. Toshiba supplied the electrical equipment while UCW was responsible for the mechanical components and assembly. Fifty locomotives were delivered by UCW in 1985 and 1986, numbered 10-001 to 10-050.[1][2][3]
UCW did not allocate builder’s numbers to the locomotives it built for the SAR. While the usual practice by most other locomotive builders was to allocate builder’s numbers or works numbers to record the locomotives built by them, UCW simply used the SAR running numbers for their record keeping.[2]
The Class 10E was introduced as a new standard 3 kV DC heavy goods locomotive. With a continuous power rating of 3,090 kilowatts (4,140 horsepower), four Class 10E locomotives are capable of performing the same work as six Class 6E1.[1]
The locomotive makes use of either regenerative or rheostatic braking, as the situation demands. Both traction and electric braking power are continuously variable, with the electric braking optimised to such an extent that maximum use will be made of the regenerative braking capacity of the 3 kV DC network, with the ability to automatically change over to rheostatic braking whenever the overhead supply system becomes non-receptive.[1]
These dual cab locomotives have a roof access ladder on one side only, just to the right of the cab access door. The roof access ladder end is marked as the number 2 end.[2]
In visual appearance the Class 10E can be distinguished from the later model Class 10E2 by the roof ends and the sills. The Class 10E has riffled roof ends and parts of the sill protrude slightly past the bottom edge of the body sides. The Class 10E2 has smooth unriffled roof ends and no part of the sill protrudes past the bottom edge of the body sides.[2]
The Class 10E is employed chiefly to haul ore trains on the line between Kimberley and Hotazel in the Northern Cape and it also works between Kimberley and the Witwatersrand. Most are shedded at Beaconsfield near Kimberley, with several also at Welgedag near Springs.[4]
The main picture shows 10-044 in Spoornet blue livery with outline numbers.
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