The minimum of high-frequency radio waves and transmission loss in the power cable and the techniques of it's manufacture

摘要

PURPOSE: A high voltage cable minimizing a harmonic wave and a line loss and a manufacturing method thereof are provided to attenuate a nose generated on a line by arranging a power line and a ground line in a twist form and remove a residual nose by discharging the same to the ground. CONSTITUTION: A high voltage wire has an electric wire to transfer a high voltage power in a condition that a harmonic wave and a line loss are minimized. A plurality of wires form one group of electric wire. The electric wire group is closely attached to a single ground line and electrically connected with each other to remove a noise generated in the electric wire and discharge the noise to the ground. The electric wire and the ground line form a set. A coating is applied to an external side of the electric wire group to electrically shield the electric wire from the outside. A high voltage cable has the electric wire thereinside to minimize the harmonic wave and the line loss and transfer a power. The electric wires are bound into one group. At least one ground line(38) is closely attached to correspond to the pertinent electric wire group. A wiring is arranged along with the pertinent electric wire group in a twist form.