Effect and mechanism of some new voltage stabilizers for cross-linked polyethylene insulation

The courageous acceptance of cross-linked polyethylene (XLPE) cables for power transmission and distribution during the past decade results from significant advances in manufacturing technology and quality. Successful service stimulates cable engineers to extend XLPE cable toward higher power capability through higher operating voltages. In recent years two practical and technological approaches have been developed for XLPE power cable; one is the development of a new type of manufacturing process,¹ the other is the incorporation of a certain additive (voltage stabilizer) into solid insulation. This additive helps in the prevention or suppression of premature failure or cumulative deterioration, leading to insulation puncture.