Electric railroad - Overhead line in Ceneri Base Tunnel
With the aid of a CVR4.0 high-speed recording system, Furrer+Frey employees were able to observe how the pantograph in the area of the line separator behaves at different speeds.
Thanks to the high-resolution images, the details of pantographs and section insulators could be examined and evaluated.
Especially in railroad tunnels, conductor rails are increasingly used instead of the conventional catenary overhead lines.
This saves considerable infrastructure costs, especially due to the lower overall height and because there is no need to ground components in the overhead line crack area.
Such conductor rails are also used in the Ceneri Base Tunnel.
The CBT is an approximately 15-kilometer-long double-track railroad tunnel in the Swiss canton of Ticino. It serves as a southern feeder to the Gotthard Base Tunnel in the Swiss Alps, the longest railroad tunnel in the world. The CBT was opened in 2020.
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