High voltage testing of medium voltage shielded power cables

Abstract

An overview is given of several test procedures used for high-voltage testing of medium-voltage (2001-3500 V) shielded power cables. After a brief review of various medium-voltage cable constructions and standards, the author describes AC and DC withstand testing for different insulation thickness, partial discharge testing, field testing of cables (at the time of initial installation), as well as factors affecting leakage currents, and maintenance and proof testing.<>