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What is common in Italy is also tested in Graubünden: the Rhaetian Railway paints rails with white paint so that they heat less and deform.
The painting is currently being tested on a 300-meter section between Küblis and Fideris in Prättigau, as Yvonne Dünser said Saturday at the request of Keystone-SDA. The spokesman of the Rhätische Bahn (RhB) confirmed a report by Radio Südostschweiz
. The painting was applied in mid-June and is now showing its full effect in the heat of summer. In theory, the rails can be cooled up to 7 degrees, according to Dünser. For the track at Prättigau, there is still no balance – only when it is cold again, the test should be evaluated.
Chur-Arosa 2015 blocked
Behind the attempt is a research report of the ETH Zurich, the effectiveness of white The color was detected in intense sunlight. As a result, researchers turned to RhB according to the researchers on fertilizers. They want to examine if the rails are deforming less strongly in the practical test.
In the case of a so-called crushing of the track from 50 millimeters, the rails can no longer be used. During the summer of 2015, the heat had consequences on the RhB: due to a deformation of the track, the trains were sometimes unable to circulate continuously from Chur to Arosa. Passengers had to be transferred on buses
In Italy, it was customary to paint the white rails against the heat.
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