SNCF Class Z 800
The SNCF Z 800 is an electric [multiple unit] train used on the Saint-Gervais–Vallorcine railway. They were purchased in a joint order by SNCF and the Martigny–Châtelard Railway on March 30, 1994. Five trainsets were produced: three for SNCF, and two for the MCR.
Development
As the Z 600 trainsets were wearing out, replacement for them was envisioned at the end of the 1980s. A joint order was created with SNCF and the MCR to replace the existing Z 600 transits. Five transits were ordered in 1994 from a consortium made up of Vevey Technologies, Adtranz and SLM Winterthur.Description
For the trains be able to operate from Fayet to Martigny, they are equipped with security systems corresponding to the two lines. They can operate on the rack sections of the TMRs. Current collection is done by 3rd rail shoe or pantograph.The Z 800 multiple units are permanently coupled in pairs. There are power and communications connections the two multiple units of a train. The three SNCF trains are numbered Z 801/802, Z 803/804 and Z 805/806, while those of the MC are Z 821 / 822 and Z 823/824. However, these are numbered BDeh 4/8 n ° 821/822 and 823/824 in the nomenclature of TMR. The odd numbered railcar is directed towards Fayet, and the even number railcar is directed towards Martigny. The new trainsets were delivered in 1996-1997, with three for SNCF and two for the MCR.
Each unit is equipped with two bogies with two axles including a carrier and a motor. The motors have a power output of 1000 kW. A train can reach 70 km/h on an easy profile, on 70 mm/m ramps, on upper ramps, and downhill.
The Z 800s are equipped with five braking systems:
- A compressed air brake applied to the wheels
- A rheostatic and regenerative brake, intended to regulate the descent speed when going downhill
- An emergency magnetic brake acting on the rails
- A clasp brake
- A disc brake