Today porcelain-based Insulators dominate the Indian Transmission & Distribution market.   

Polymeric composite insulators offer several advantages over porcelain type, such as hydrophobicity, light weight, environmental stability, shatter proof, etc. Developed nations are rapidly replacing porcelain with polymeric insulators, while the adoption rate in India is much slower. The reason behind this is the cost of technology for developing polymeric composites.   

Raychem RPG, in collaboration with Ministry of Power under NPP Program, developed a low-cost processing technology for making polymeric insulators.  The company developed an innovative extrusion based spiral insulator with optimized critical design and process parameters - silicon rheology for extrusion with critical shed morphology.  The insulator is scalable for all ratings and ranges.  

Raychem RPG’s Spiral Insulator is tested, validated and installed in Madhya Gujarat Vij Co. Ltd. (MGVCL) since last 3 years.