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Long term reliability is one of the most important performance measures for high voltage insulators in the power transmission and distribution networks. To evaluate the long-term performance of insulators, properties such as hydrophobicity, surface roughness, images from Scanning Electron Microscopy and dielectric breakdown measurements are often studied. In this paper, a new evaluation method based...
This study investigates the aging of high-temperature-vulcanized (HTV) silicone rubber insulator under multiple stress conditions. Silicone rubber specimens were subjected to accelerate degradation using an accelerated weathering chamber. The specimen was subjected to accelerated aging cycle in accordance to ASTM G154 cycle 4 for a total of 3000 hours. The aging cycle goes through a cycle of 70°C...
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