Electric Field Simulation of 10kV Cable Intermediate Joint Based on Ingress Defect

Abstract

Cross-linked polyethylene cables are used in distribution network cables on a large scale due to their excellent insulation properties, but dampness will seriously reduce the operating life of the cables. Aiming at the water ingress phenomenon of the middle joint of 10kV cross-linked polyethylene cable, this paper sets water as the medium at different positions of the middle joint and adjusts the length distribution of the water gap. The finite element simulation is carried out, and the influence of water inflow at different positions on the electric field is obtained. The influence of field strength.