TorsionFlex® is a group of cables with a flexible multi-wire copper core with insulation and a rubber coating, used for wiring of a wind tower, e.g. to connect a generator turbine with a transformer. The cable is constructed and produced in the Kraków Plant in Poland. The structure of cables and the materials from which they have been made guarantee reliability and high quality of operation in extreme environmental conditions. For example, RHW-2 DLO 2KV cable may be used in a temperature range from -40ºC to +90ºC in line with UL 44 / ICEA / CSA-C 22.2 No. 38, similarly to FMSC 1KV executed in line with UL 2277.