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- There are 15,687 km of electrified railways in France, making up approximately 55% of the network in use. For historical reason there are two norms of electrification that coexist in France: 1,500 V DC and 25 kV 50 Hz AC. The electrification of the French railway network was made in four phases. First, at the start of the 20th century, there was a phase of testing and technological exploration. Third rails and overhead lines were on trial in some lines in France; different voltages were tried. Afterwards, in the 1920s, the main lines starting from Paris and lines in the Pyrenees were electrified with 1,500 V DC. After World War II and with the improvements in power electronics, tests were made with 20 kV AC and subsequently with 25 kV AC in the Alps, which was considered satisfactory. Then the North and the East of France were electrified with 25 kV AC, and some lines were electrified with 1,500 V DC in the South. From the 1970s to now, the electrification of the French network has continued mainly with 25 kV to bring electrically powered TGVs to some cities. The use of two norms of electrification was a huge problem for the SNCF up to the 1970s, because there was not much equipment able to run under both standards. Today, all electrical equipment ordered by the SNCF can use both 25 kV AC and 1,500 V DC. (en)
- L'électrification du réseau ferré en France est un processus toujours en cours d’équipement des lignes de chemin de fer en installations fixes permettant la traction électrique, principalement en 25 kV alternatif ou en 1 500 V continu. Environ 55 % du réseau ferré français en service est électrifié. L'électrification des lignes secondaires étant très coûteuse, des solutions partielles ou bien alternatives sont donc recherchées ou en combinant les deux, dont le train à hydrogène, hybride ou doté de batteries ou utilisant des biocarburants (liquide ou gazeux). (fr)
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- L'électrification du réseau ferré en France est un processus toujours en cours d’équipement des lignes de chemin de fer en installations fixes permettant la traction électrique, principalement en 25 kV alternatif ou en 1 500 V continu. Environ 55 % du réseau ferré français en service est électrifié. L'électrification des lignes secondaires étant très coûteuse, des solutions partielles ou bien alternatives sont donc recherchées ou en combinant les deux, dont le train à hydrogène, hybride ou doté de batteries ou utilisant des biocarburants (liquide ou gazeux). (fr)
- There are 15,687 km of electrified railways in France, making up approximately 55% of the network in use. For historical reason there are two norms of electrification that coexist in France: 1,500 V DC and 25 kV 50 Hz AC. The electrification of the French railway network was made in four phases. From the 1970s to now, the electrification of the French network has continued mainly with 25 kV to bring electrically powered TGVs to some cities. (en)
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- Électrification du réseau ferré en France (fr)
- Railway electrification in France (en)
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