SNCF Class BB 20011
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| Type and origin | |
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| Power type | Electric |
| Model | SNCF BB 22200 |
| Rebuild date | 1985 : 20011 rebuilt from 22379 1986 : 20012 rebuilt from 22380 1994 : both rebuilt for TTU 1995 : both rebuilt to standard BB 22200 |
| Specifications | |
|---|---|
| Gauge | 1,435 mm (4 ft 8 1⁄2 in) standard gauge |
The SNCF BB 20011 and SNCF BB 20012 were electric locomotives used for testing, built by Alsthom between 1985 and 1986. The two locomotives were the synchronous dual-voltage prototypes for Class BB 26000.
In 1994 the locomotives were re-used for work on the channel tunnel, then converted to standard class BB 22200s in 1995.
In 1985 and 1986 the SNCF BB 22200 locomotives numbers 22379 and 22380 were modified to test dual voltage electric traction equipment, the microprocessor control, and auxiliary variable speed induction motors. 20012 was used to test the combination of pneumatic brake system and electric brake system.
In 1994 the units were used in the channel tunnel as motor engines for TTU trains. (Channel tunnel freight engines)
In 1995 the locomotives were converted back to standard SNCF Class BB 22200 type.
The locomotive 20011 has been produced by Marklin and Roco in HO scale.
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