Kabelf÷ringsinnretning med minst ett kabelf÷ringsr÷r av termoplastmaterial

A cable guiding device having at least one cable guiding pipe (conduit) of thermoplastic synthetic material, which cable guiding pipe has a cable guiding duct with a duct inner wall (which is circular in cross-section and has the pipe internal radius r), and which has sliding ribs which are arranged on the duct inner wall and are formed out of the thermoplastic synthetic material of the synthetic material pipe. The sliding ribs run at a predetermined rotation angle a with respect to the internal circumference. Contact surfaces having the rib contact width b result in a cable guiding pipe, which is arranged in a straight line, with a cable (which is to be inserted) at the contact points between the sliding ribs and the cable sheath of the cable which is to be inserted. The sliding ribs run in a corrugated shape and form reversing regions between sections having a constant rotation angle a. The rib contact width b, the number of sliding ribs which are distributed equidistantly over the circumference of the duct inner wall, the pipe internal radius r and the length LK of the rib contact sections between the reversing regions satisfy the equation Ar = 0.16 b z LK. A defines the contact area of the cable sheath at the intersections with the sliding ribs in the rib contact sections. The angle g, measured in radians, of the pitch of the sliding ribs, measured on the duct inner wall, satisfies the equation g = ra/LK.