The purpose of the test is to determine the advantages of the more expensive internal jacket in shielded servo cables versus the less expensive fleece taping with fillers. In the case of flexible shielded cables, the shield is usually separated from the composite core structure. On the one hand, this is done in order to achieve a rounder braid form and, on the other hand, the friction of the core insulation sheath against the braided shield structure is prevented due to the separation of the cores and shield. This can be achieved with an internal jacket or a fleece taping which is wrapped around the composite core structure. The internal jacket is more sophisticated and is therefore more expensive to produce. Following the twisting process, the composite core structure must run through the extruder in which the internal jacket is then put on. In contrast to this method, the fleece tape can be put on between the twisting point and the reeling-up device during the twisting process and therefore does not require an own work operation.