Semiconductor layer stripping of single-core power cable - by using cutter with U=shaped cutting edge and continuous and fine adjustment of cutting depth

摘要

Triple-extruded heavy current single-core cable with solid insulation has a semiconductor outer layer removed by an appliance gripping the cable core to cut a U-shaped groove in the semiconductor layer, e.g. of graphite and semiconducting strips, to be stripped off. The cutter used has a U-shaped cutting edge. The depth of cut of the tool is continuously or finely adjusted to avoid the depth of cut exceeding the permissible threshold deoth with consequent possibility of partial electrical discharges occurring leading to gradual destruction of the insulating material.