Abstract: A multi conductor cable with a sheath having improved mechanical flexibility is provided. The cable comprises a ribbon cable in which a plurality of core wires are connected parallel in same sections to each other and in other section, the plurality of the wires are separate. These sections are arranged alternately in the longitudinal direction of the ribbon cable. The transversely central portion of the ribbon cable is curved into about S-shape, which offers superior elastic properties. Side portions of the ribbon are wound around the central S-shaped portion to form the core of the cable according to the invention.