South African Class 10E

The South African Class 10E of 1985 is a South African electric locomotive from the South African Railways era.

In 1985 and 1986 the South African Railways placed fifty Class 10E electric locomotives with a Co-Co wheel arrangement in mainline service.^[2]

Manufacturers

Builder’s plate

The 3 kV DC Class 10E 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.^[1][2][3]

Fifty locomotives were delivered by UCW in 1985 and 1986, numbered in the range from 10-001 to 10-050. UCW did not allocate builder’s numbers to the locomotives it built for the SAR, but used the SAR unit numbers for their record keeping.^[2]

Characteristics

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 entire fleet of Class 10E electric locomotives feature electronic chopper control, which is smoother in comparison to the rheostatic resistance control that was used in the Classes 1E to 6E1 electric locomotives.^[4]

Brakes

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]

Orientation

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]

Identifying Features

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]

Service

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 Welgedacht near Springs.^[5]

Liveries illustrated

The main picture shows number 10-044 in Spoornet blue livery with outline numbers. Other liveries that were applied to the Class 10E are illustrated below.

• 

  No. 10-021 in Spoornet orange livery at Pyramid South, Pretoria, 6 October 2009

• 

  No. 10-047 in Spoornet maroon livery at Klerksdorp, North West, 23 August 2007

• 

  No. 10-039 in Spoornet blue with outline numbers at Warrenton, 24 August 2007

• 

  No. 10-041 in Spoornet blue with outline numbers, Warrenton, 2 May 2013

See also

• Electric locomotive numbering and classification
• List of South African locomotive classes
• South African Class 10E2
• South African locomotive history

References

Wikimedia Commons has media related to: South African Class 10E

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