SNCF Class BB 15000
| Company type | Electric locomotive class |
|---|---|
| Industry | Rail transport |
| Founded | 1971 |
| Founder | Alstom and MTE |
| Fate | Largely supplanted by TGV services since 2007; still in limited operation |
| Successor | TGV trains |
| Headquarters | France , France |
Area served | France (25 kV 50 Hz electrified network) |
Key people | Paul Arzens (designer of front end) |
| Products | Electric locomotives (BB 15000 series) |
| Owner | SNCF |
The SNCF class BB 15000 consists of electric locomotives operating on 25 kV 50 Hz power, constructed by Alstom and MTE from 1971 through 1978. Initially totaling 65 units, this class was widely utilized throughout France's 25 kV electrified network before being largely supplanted by TGV services following the inauguration of the LGV Est in 2007.
History
During the mid-1960s, SNCF aimed to develop advanced dual-voltage electric locomotives. With significant advancements in thyristor technology, SNCF incorporated this innovation into a new locomotive series later known as the Nez Cassés (meaning Broken Noses, a nickname derived from their distinctive Paul Arzens-designed front ends) or BB 4400 kW. The procurement began with an initial five units in 1968, followed by orders of 10 units in both 1969 and 1970, culminating with a final batch of 40 locomotives in 1973.
The first batch of five locomotives was delivered in 1971, sporting the green "Maurienne" color scheme; subsequent units arriving until 1978 featured the characteristic TEE-Arzens livery. Although originally intended to complement BB16000 locomotives on eastern and northeastern routes—where speed enhancements exceeded the capabilities of older models—the BB15000 series ultimately became essential on northern and northeastern lines.
1970s-2007
Following trials on the Paris–Épernay corridor in 1971, the BB 15000 entered commercial operation in 1972, mainly serving the northeastern network. They hauled prominent passenger trains such as national TEE services including Kléber and Stanislas, with some routes extending toward Lille, Calais, and the Belgian border at Quévy.
Service configurations remained relatively consistent through the 1970s and 1980s. However, after the Ligne à Grande Vitesse Nord opened in 1993, BB 15000 locomotives gradually ceded certain routes to dual-voltage BB 26000 locomotives or TGV trains. Despite this transition, BB 15000s maintained a strong presence in northeastern France, notably hauling Corail Téoz services between Paris and Strasbourg from 2003 until mid-2005. By mid-2006, most remaining locomotive-hauled services had been replaced by TGV trainsets, relegating BB 15000s primarily to TER routes within Lorraine and Alsace as well as EuroCity trains operating between Basel-Brussels (with locomotive changes at Luxembourg) and Paris-Frankfurt (with changes at Strasbourg).
The partial commissioning of the LGV Est line in June 2007 marked the end of traditional locomotive-hauled Intercity trains linking Paris with northeastern regions, drastically diminishing the operational role of the BB 15000 class there.
2007-present
Although relieved from key Intercity duties, these locomotives were not retired. The remaining fleet of approximately 60 units is distributed among three operational sectors:
- A dozen locomotives are allocated to SNCF-VFE for Basel-Luxembourg EuroCity services and DB AutoZug’s overnight train running from Paris-Nord to the Belgian frontier. These units are equipped with Memor II+ safety systems for operation within Luxembourg and are numbered within the 115000 series. This Basel-Luxembourg EuroCity service ceased in summer 2016, after which these locomotives were reassigned.
- Twenty-eight locomotives serve SNCF-CIC (Corail Intercité), covering medium- to long-distance regional routes such as Paris to Amiens/Maubeuge and Paris to Caen/Deauville/Le Havre. Among these, twelve belong to the BB215000R sub-series fitted with MUX systems for push-pull operation alongside Corail B6Dux driving trailers, progressively replacing BB216000 units. This subset is identified by numbers within the 215000 range.
- Twenty locomotives operate under SNCF-TER Champagne-Ardennes, Haute-Normandie, and Picardie regions on express TER services, taking over duties from remaining BB516000 units. Fifteen of these are classified as BB515000R and feature MUX for push-pull compatibility with V2N driving trailers on routes such as Paris-Rouen (Haute-Normandie) and Paris-Amiens (Picardie), replacing BB516100 locomotives. This group carries numbers within the 515000 series.
Technology
The locomotive's monocoque shell is common to other members of the "Nez Cassé" family, including the BB7200 and BB22200 models. Its cab design, shared across these series and other SNCF locomotives from the 1960s, introduced the VI ("Vitesse Imposée") cruise control system, which became standard equipment on SNCF locomotives delivered after 1971.
The electrical system features a single AM18U pantograph that collects 25 kV from the overhead catenary. The voltage is stepped down by a transformer to approximately 1500 V AC, then converted to DC by a thyristor-controlled bridge rectifier to supply the traction motors.
Braking capabilities include pneumatic, electro-pneumatic, regenerative, and dynamic systems. The monomotor bogies, based on the Y217 design from the BB67400, utilize primary coil springs combined with secondary "sandwich" block suspension.
These locomotives are renowned for their outstanding reliability; some units have surpassed 10 million kilometers with fewer than two faults per million kilometers, a level of performance unmatched by similar European locomotives.
Liveries
Throughout their service life, BB15000 units have appeared in at least six distinct liveries:
- The initial green "Maurienne" scheme was applied to BB15001 through BB15005 until 1982, after which these were repainted into the TEE-Arzens livery.
- Starting with BB15006 and later applied to earlier units, the TEE-Arzens livery featured silver, red, and orange colors; in later years, opaque gray replaced the silver.
- The "béton" (concrete) livery, standard on BB7200 and BB22200 classes, was tested on BB15034 and BB15040 during 1986-87 but discontinued due to its tendency to show dirt quickly.
- Introduced in 1995 on BB15016, the "Multiservices" livery (previously called Corail+) combined two shades of gray with silver and red; by 2002, nearly half of the class adopted this look.
- The "en voyage..." livery made its debut on BB15063 in 2002 with a palette including silver, purple (on one cab side), cyan (on the opposite side), and distinctive branding; as its usage rights have expired, future repainting is planned.
- Several units have also been repainted into regional TER liveries corresponding to their operational territories.
The experimental uses of the class
BB15000 locomotives played significant roles in various experimental applications:
- In 1972, BB15001 was used to test potential speed enhancements up to on the Paris-Strasbourg route. Although technically successful, infrastructure upgrade costs led to termination of the project.
- In 1973, BB15008 assessed communication interference issues on Germany’s uniquely electrified Überherrn-Wadgassen line operating at 25 kV.
- Converted in 1974 into BB7003, BB15007 served as the prototype for the BB7200 series. Later renumbered BB10003 in 1982 for asynchronous induction motor trials before reverting to BB10007 in 1997.
- BB15015 tested bicurrent readiness of the Marseille-Nice line in 1976 for forthcoming BB22200 operations.
- In 1977, BB15041 conducted demonstration runs between Épernay and Châlons-sur-Marne for Amtrak officials aiming to influence US locomotive procurement. Ultimately, a six-axle CC21003 was modified and exported instead.
- Fitted with lower-geared bogies from BB22201 in 1978, BB15012 was trialed on heavy freight trains up to , comparing performance against the BB22000 class.
- In 1979, BB15063 received bogies from BB7248 designed for Middle Eastern rail conditions targeting Iranian Railways interest; it hauled heavy trains up to on various routes and retains these bogies today.
- Also in 1979, stability tests at speeds up to were performed by BB15030 in the Marne valley area.
- A BB15000 hauled TGV Sud-Est intermediate cars at high speed in 1980 as part of preparations for LGV Sud-Est service commencement.
- That same year, thermal endurance tests down to were conducted on BB15008 at Vienna’s Rail Tec Arsenal.
- In 1981, both BB15049 and BB15059 evaluated AM18U pantograph performance at high speeds within tunnels related to Channel Tunnel operations.
- Equipped with synchronous motors in 1982 and renumbered BB10004, BB15055 later returned to its original configuration in 1989.
- Also during 1982, BB15056 was fitted with a bimotor bogie featuring motors similar to those used on TGV Sud-Est trainsets.
Fleet roster
Numerous units carried names inspired by French municipalities, towns, and cities.
... [the list continues similarly with the remaining entries] ...| Number | Renumbered | Name | Remarks |
|---|---|---|---|
| BB 15001 | Gretz-Armainvilliers | ||
| BB 15002 | Longwy | ||
| BB 15003 | Sarreguemines | ||
| BB 15004 | Sedan | ||
| BB 15005 | Saint-Louis | ||
| BB 15006 | Metz | ||
| BB 15007 | BB 7003 BB 10003 |
Restored to its initial number and configuration in 1997 | |
| BB 15008 | Nancy | ||
| BB 15009 | Reims | ||
| BB 15010 | Strasbourg | ||
| BB 15011 | |||
| BB 15012 | Châlons-sur-Marne | ||
| BB 15013 | Longuyon | ||
| BB 15014 | Thionville | ||
| BB 15015 | Biarritz | ||
| BB 15016 | Charleville-Mézières | ||
| BB 15017 | Saint-Avold | ||
| BB 15018 | |||
| BB 15019 | Montigny-lès-Metz | ||
| BB 15020 | Pau | ||
| BB 15021 | Château-Thierry | ||
| BB 15022 | Pantin | ||
| BB 15023 | Meaux | ||
| BB 15024 | Lunéville | ||
| BB 15025 | |||
| BB 15026 | Épernay | ||
| BB 15027 | Creutzwald | ||
| BB 15028 | Villiers-le-Bel | ||
| BB 15029 | Aurillac | ||
| BB 15030 | Forbach |
Scale models
- This locomotive has been modeled in H0 scale by manufacturers including Jouef, Lima, LS Models, Märklin, and Roco.
- It is also available in N scale, produced by Fleischmann and Minitrix.
Related models
- China Railways 8K – an export adaptation for China
- CP Class 2600 – comparable locomotives constructed in 1974 for Comboios de Portugal, featuring a different track gauge
- Korail Class 8000 – similar type used by Korail
- SŽ series 363 – analogous locomotives operated by Slovenske Železnice
- NS Class 1600 – comparable units for Nederlandse Spoorwegen
- FEPASA Class 2200 – equivalent locomotives serving Ferrovia Paulista S/A
Sources
- Les BB 15000, 35 ans de services intensifs de l'Alsace aux Flandres. Featured in: Rail Passion Hors-Serie: "Génération 4400 kW". July 2006. Éditions La Vie Du Rail, , pp. 6–29.