SNCF BB 13000 SNCF BB 13000 The BB 13000 class were electric locomotives operated by SNCF in France. They were one of four classes, together with the BB 12000, CC 14000 and CC 14100 classes, that formed an experimental group for studying the practicality of the new French electrification. The standard French electrification system before WWII was 1,500 V DC, beginning with locomotives such as the 2BB2 400. Post-WWII, France occupied the south-west of Germany and the . This line had been electrified with one of the first systems to use 50 Hz, the standard commercial distribution frequency, rather than the lower Hz
SNCF Class BB 15000 SNCF Class BB 15000 The SNCF class BB 15000 is a class of 25 kV 50 Hz electric locomotives built by Alsthom and MTE between 1971 and 1978. Initially 65 locomotives strong, the series was widely used on the whole French 25 kV network before losing services to TGV trains when the LGV Est went into service in 2007. In the mid-1960s, SNCF sought a new type of dual-current electric locomotives. As thyristor technology advanced rapidly, SNCF decided to adopt the new technology for a new series of locomotives, later known as the "Nez Cassés (Broken Noses, due to their