Client: SBB CFF FFS
Project: SBB Pfäffikon SZ–Lachen; ROCS on open track
Partner: –
Year of completion: 2024
Low headroom requires overhead contact line update with rigid overhead conductor rail.
The track renewal between Altendorf and Lachen involved updating the overhead contact line on the SBB main line Zurich–Sargans below the Seestattstrasse overpass. A conventional solution was not possible due to the low clearance height. To ensure the required contact wire height while fully complying with the minimum safety distances, SBB decided to use a rigid overhead conductor rail system from Furrer+Frey.
We were commissioned to install a rigid overhead conductor rail (ROCS) over a length of around 50 metres on both tracks. A particular feature of this system is that the ROCS are mounted on 2-track cantilevers, which was necessary because in some places masts could only be placed on one side of the railway line. The customisable components of our ROCS were easy to combine with the standard SBB support structures.
Using the rigid overhead conductor rail meant the required contact wire height could be achieved while maintaining all safety distances, and the combination of SBB and Furrer+Frey components made it possible to ensure optimal implementation both technically and operationally within the given framework conditions.
