Can empty conduits be used for laying the lines? Y. Beenen Updated November 16, 2023 21:24 Follow Flexible connecting cables must not be laid permanently. Therefore, empty conduits or cable ducts must be used. Related articles How to determine the correct motor strength for the shutter to be motorized? How does the diameter of the shutter curtain change in the wound-up state for the different shutter heights? What influence does the octagonal steel shaft have on the result? Operating Instructions RolloTube Basis RTBS/RTBM/RTBL Why does the roller shutter motor switch off after prolonged and frequent operation? Operating instructions C-line tubular motors CLIS/CLIM