Problem
The low-floor tram EVO2 from the Czech manufacturer PRAGOIMEX was to be introduced in the city of Liberec. However, despite the state-of-the-art equipment of the EVO2 tram, there were major problems with condensation in the areas where the electronic components are stored under the ceiling of the carriages.
At first, the problem seemed unsolvable: condensation in the space between the roof and the interior ceiling, where cables and other important components are laid, would cause short circuits and system failures. This meant that the EVO2 tram would not be approved for operation – a disaster for the manufacturer.
Solution
The inside of the technical shaft was completely coated with ClimateCoating® IndustrySpecial Like all ClimateCoating products, the paint has physical properties due to its composition that have a thermal effect on surfaces and rooms and also contribute to moisture management.
Result
The coating increased the surface temperature in the closed chamber and water vapor no longer condensed on the enveloping surfaces. The coating also withstood tests with large temperature fluctuations under the harshest conditions. Only through the effects of the coating and without the use of fans, all technical shafts remained permanently dry and condensation in the wiring was prevented. Cables and technical components have been stored safely and dry ever since.
The EVO2 tram was certified by the Railway Inspectorate after two months of tests and approved for proper operation. It has been running on the streets of Liberec since the second half of 2013.
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