Characteristics of power cable shielding

WITHIN the past few years, there have been a number of interesting papers relating to the characteristics of power cable shielding, covering both theoretical and experimental work being done in this field. At the laboratory of the Simplex Wire & Cable Company, it was felt that added knowledge of the phenomena involved might be obtained if experiments were conducted in order to determine the electrical characteristics of cables with different types of shielding. Hence, a comprehensive laboratory investigation was undertaken in which the parameters of resistance, inductance, and capacitance of such cables with variations in shielding were measured at high frequencies, using techniques which, in general, might permit the simulation of surge conditions.