SNCF Class BB 7200 SNCF Class BB 7200 The SNCF Class BB 7200 is a 1.5 kV DC electric locomotive operated by the SNCF in France. It is the DC version of the 'Nez Cassé' family of locomotives. SNCF Class BB 15000 is the AC version while the Class BB 22200 is a dual-voltage version. They are numbered to show that the DC and AC class numbers add up to the dual-voltage locomotive class number (7200 + 15000 = 22200). Another relative is the NS Class 1600 operated in the Netherlands, a DC locomotive based on the BB 7200. 7209, 7210, 7308 and 7348
SNCF Class BB 20004 SNCF Class BB 20004 The SNCF class BB 20004 locomotive was a dual-voltage test-bed locomotive transformed from the damaged BB16540 in 1959. After the end of its test period in 1969 it was reinstated with its original equipment under its original number BB16540. SNCF had already experimented with three other dual-voltage locomotives in the 1950s, but these were all rebuilt from a DC locomotive and could only deliver their full power under 25 kV. Power output under 1.5 kV was reduced to 10% of the full power which is nearly negligible. This was however no real problem, as these locomotives