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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.
==History==
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 cab styling by Paul Arzens)" or "BB 4400kW". Given that the need for pure AC-locomotives was greatest, SNCF placed an initial order of five locomotives in 1968. In 1969 a second order of 10 locomotives followed, in 1970 a third order was made for another 10 locomotives. The remaining 40 locomotives were ordered in 1973.
The first five locomotives were delivered in 1971 in the overall-green "Maurienne" livery. The rest followed between 1973 and 1978, painted in the striking TEE-Arzens livery. Initially meant to support BB16000 locomotives on eastern and northeastern lines, which could not keep up with the timetables anymore after top speed on some sections was raised to , the BB15000 series would become the most important locomotives on the northern and northeast network.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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