A Novel Framework to Study the Role of Ground and Fumed Silica Fillers in Suppressing DC Erosion of Silicone Rubber Outdoor Insulation

This paper investigates the effect of ground and fumed silica fillers on suppressing DC erosion in silicone rubber. Fumed are incorporated rubber at different loading levels comparatively analyzed this study. Outcomes +DC inclined plane tracking test indicate a better performance for filled composite despite having lower thermal conductivity compared to composite. Results simultaneous thermogravimetric differential analyses correlated with outcomes suggesting that suppresses depolymerization promotes radical based crosslinking finding is evident as higher residue obtained filler being significantly level silica. The surface morphology obtained, roughness determined tested samples composites dry-arc resistance formation coherent Such could act barrier shield unaffected material underneath damaged during dry-band arcing, thereby preventing progressive erosion. study suggest significant role promoting more interactions suppress fillers.