CMP series Z 23000
| Z 23000 | |
|---|---|
 Z 23000 on the Ligne de Sceaux , 1982
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| Number: | 150 |
| Manufacturer: |
Decauville , CGC , Brissonneau et Lotz , CIMT |
| Year of construction (s): | 1937-1962 |
| Retirement: | 1987 |
| Axis formula : | Bo'2 ' |
| Gauge : | 1435 mm ( standard gauge ) |
| Length: | 10,700 mm |
| Width: | 3,200 mm |
| Trunnion Distance: | 14,500 mm |
| Service mass: | 45 t |
| Top speed: | 80 km / h |
| Continuous output : | 1390 kW (per four-car unit) |
| Power system : | 1500 V = |
| Power transmission: | Overhead line |
| Number of traction motors: | 2 |
| Drive: | electric |
The Z 23000 series electric multiple units of the Compagnie du chemin de fer métropolitain de Paris ( Paris Municipal Railway Company) were procured for the Ligne de Sceaux from 1934 . This route to the southern suburbs of Paris had recently been modernized and electrified. The trains of this type consisted only of railcars, so they did not have sidecars . They shaped the image of the line for fifty years and were usually briefly referred to as automotrices Z (Z-railcar).
history
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The Compagnie du chemin de fer métropolitain de Paris (CMP) designed new vehicles in 1930 in preparation for the creation of a S-Bahn- like network in Paris as envisaged in the Langevin Plan . This series for suburban traffic with its frequent stops and its high passenger volume was derived from the metro trains of the Sprague-Thomson type , but designed for the larger clearance profile of the railway. In contrast to the metro, the power supply came from overhead lines with 1500 V direct current.
The automotrices Z were ordered and built in several series. The first order was placed in 1934 by Forges et ateliers de constructions électriques de Jeumont . Further orders followed in 1937, 1942 and 1950 from various manufacturers. The last appointment was made in 1961 by the RATP . The vehicles of the first two series were put into service between November 1937 and December 1938 and ran on the Ligne de Sceaux , which connected Paris with the southern suburbs of Sceaux and Saint-Rémy-lès-Chevreuse and had just been electrified and modernized. A total of 148 type Z railcars were built over a period of almost 30 years.
Even after the integration of the Ligne de Sceaux into the RER , the Z 23000 still played an important role on the RER line B for some time . This was created in 1977 by extending the Ligne de Sceaux to Châtelet - Les Halles station . For this occasion, the trains received some technical improvements, as between Châtelet - Les Halles and Luxembourg a gradient of 4 ‰ had to be overcome. During tests on the RER A route between Le Vésinet and Saint-Germain-en-Laye , it turned out that the brakes of the automotrices Z were undersized for such inclines and they were replaced. In addition, the spoked wheels present on some trains were replaced by solid wheels .
The lines operated by SNCF from Paris to Aulnay-sous-Bois and beyond, which became the north branch of the RER B with the opening of the connection from Châtelet - Les Halles to Gare du Nord in 1981, were electrified with 25 kV alternating current. The Z 23000, on the other hand, were only designed for operation with 1.5 kV direct current, so that they could not be used on the route north of the Gare du Nord. They should therefore be replaced by the new Z 8100 series , which was designed for both power systems. The retirement of the automotrices Z began in 1984, but then proceeded more slowly than planned. Some of the newly delivered Z 8100s were used on the RER A to support the vehicles of the MS 61 type , which had numerous problems due to their high usage. In the harsh winter of 1985 the Z 8100s failed in rows because of snow, which caused short circuits, and had to be replaced again by the automotrices Z , which had no problems with the frost and snow. They were also used for night trips on the section south of Port-Royal, which served to keep the overhead line free of ice. In June 1983 there was an accident in the Palaiseau-Villebon train station in which a Z 23000 collided with a Z 8100, which should actually have passed through the station and was stopped by an emergency brake.
The Z 23000 were originally used as a double multiple unit , which was created by coupling two cars rear to rear. At rush hour, two double railcars operated as a double traction . Due to the higher number of passengers in the last few years of operation, longer train sets became necessary: The smallest unit was initially expanded from double multiple units to three cars (as with the MS 61) and later four cars (as with the Z 8100). To form the three-car formations, the cars had to be coupled front to rear, which made it necessary to convert the couplings.
The last Z-railcar ran on February 27, 1987, almost fifty years after it was first used on the Ligne de Sceaux . His last journey with passengers led from Gare du Nord to Orsay-Ville .
Vehicle concept
The automotrices Z were designed by the CMP according to the following principles, which at the time no existing vehicle corresponded. They should have four doors on each side in order to ensure a quick change of passengers, be designed for elevated platforms and be as long as possible, without leaving too large gaps on the platforms that are sometimes in curves. They should also be light and accelerate well and have modern, simple and reliable electronic equipment.
Construction series
| number | numbering | Orderer | Order | Manufacturer | delivery | particularities |
|---|---|---|---|---|---|---|
| 21st | Z 23221-241 | CMP | 1934 | Decauville ( Corbeil ) | 1937 | CEM pantograph, blue paint with red surround |
| 24 | Z 23242-265 | CMP | 1934 | Compagnie française de matériel de chemin de fer (CFMCF) ( Maubeuge ) | 1937 | CEM pantograph, blue paint with red surround |
| 12 | Z 23266-277 | CMP | 1934 | Compagnie Générale de Construction (CGC) ( Saint-Denis ) | 1937 | CEM pantograph, blue paint with red surround |
| 4th | Z 23278-281 | CMP | 1937 | CFMCF | ? | CEM pantograph, blue paint with red surround |
| 14th | Z 23451-464 | PO | 1937 | CFMCF | December 3, 1938 | CEM pantograph, blue paint with red surround |
| 5 | Z 23282-286 | CMP | 1942 | Brissonneau et Lotz ( Aytré ) | 1947 | no post office , Faiveley pantograph, green paint |
| 10 | Z 23287-296 | CMP | 1942 | Brissonneau et Lotz | 1949 | no post office, Faiveley pantograph, green paint |
| 14th | Z 23297-310 | RATP | June 20, 1950 | Compagnie industrial de matériel de transport (CIMT) ( Marly-lez-Valenciennes ) | 11/1952 to 4/1953 | Fluorescent tubes instead of hanging lamps |
| 21st | Z 23311-331 | RATP | October 2, 1959 | CIMT | 1961 | rounded vehicle shape |
| 25th | Z 23332-356 | RATP | 1961 | CIMT | 1962 | rounded vehicle shape |
Z 3400 series of the SNCF
The Compagnie du Paris-Orléans ordered 14 railcars, as they still operated the section from Massy-Palaiseau to Saint-Rémy-lès-Chevreuse even after the Ligne de Sceaux had been taken over by the CMP . It merged in 1937 with the newly founded SNCF, which took the ordered railcars and referred to them as the Z 3400 series from 1950. When, in 1964, the line to Saint-Rémy-lès-Chevreuse was taken over by the successor to the CMP, the RATP , the 14 railcars also went to this (back).
Individual evidence
- ^ Gaston Jacobs, La ligne de Sceaux , p. 188
literature
- Gaston Jacobs, La ligne de Sceaux, 140 ans d'histoire , Éd. La Vie du Rail, 1987, 271 p.
- Symbioz: Automotrices Z
