Testing of 6-500 kV Cables in Polymer Pipes

Abstract

In recent years, the laying of 6-500 kV cable lines in polymer pipes has become widespread. This solution allows to minimize the amount of excavation, to cross various communications and barriers, to provide mechanical protection of cables. However, as experience has shown, polymer pipes have a significant drawback – they prevent to identify the presence of defects in the cable outer sheath and determine the exact location of these defects along the line route.