Last year we have started the construction of a new test tower. After completing new Expedition Hall in 2020, this represents another major investment in the modern history of STROS.

In the basic version, the system enables heating of the contact wire supply of elevators up to a lift height of 200 m. Standard bus bar assemblies are prone to freezing. In the winter, at temperatures around 0 °C, the moisture in the air freezes, precipitation occurs, and water from the building is sprinkled on to the slippery surface of the trolley wire power supply. The thin layer of ice on the slippery surface increases electrical resistance, and can therefore cause sparks during operation, which damage both the collectors and the actual trolley wire surface.In extreme cases, the collector can be frozen to the trolley wire.