staple fiber layer 14 colored with the signal color serves to indicate wear in the event of damage to outer cable 20 and to inhibit friction between the cable core and cable jacket the copper fibers introduced into outer cable jacket 20 in order to impart electrical conductivity to the cable structure also contribute simultaneously to a reduction in wear due to abrasion of the synthetic fibers corresponding to the first and second embodiments outer cable jacket 20 is once against sealed with a flexible resin system to prevent penetration of water and dirt the embodiment of the invention depicted in fig4 comprises as an electrically conductive insert a single wire 22 forming the cable core around which the twelve load bearing synthetic fiber strands 12 made of dyneema are braided once again only synthetic fiber strands 12 that are braided with one another are load bearing the cable is additionally equipped with a colored coating 24 in the present case embodied as a polyurethane coating and wire 22 is encased in a plastic sheath 26 while plastic sheath 26 protects the wire from chemical influences the colored coating 24 serves as a wear indicator since corresponding abrasion of the colored coating 24 enables easy visual checking of the cable coating 24 also however ensures the requisite coefficient of friction that is required so that a corresponding preload can be applied to cable 10 in a preload unit according to the last embodiment depicted in fig5 the electrical conductivity of cable 10 is implemented by way of copper wires 22 braided into the individual cable strands 12 to protect the copper conductors from chemical influences they are once again encased in a plastic sheath 26 similarly to electrical conductors to ensure sufficient temperature resistance the embodiments of.