Engineering Analysis Of Insulator Performance Reliability

During the material selection phase of overhead power line insulators, the team prioritized the use of high-strength ceramic or composite material core rods, paired with a high-quality umbrella skirt structure. Through repeated simulations of tensile, bending, and vibration loads on the mandrel, it was confirmed that it could maintain mechanical integrity under complex stress conditions. The interfaces between materials underwent meticulous sealing to inhibit environmental erosion and moisture infiltration. This tension insulator structure design has been verified multiple times in 500kV and higher voltage level lines.

In terms of electrical insulation protection, the geometry of the dead end insulators external umbrella skirt is designed based on the pollution level and environmental characteristics. Through electrical simulation and actual testing, the engineering team adjusted the creepage distance and surface shape to ensure that dead end suspension insulators still has a high degree of flashover resistance in environments with severe pollution and large humidity changes.