The insulation material used in high and extra high voltage cables is crucial for their performance and safety. Common insulation materials include cross-linked polyethylene (XLPE), silicone rubber (SR), and Teflon. XLPE is a thermoset material with excellent electrical properties, including high dielectric strength, low dielectric loss, and good thermal resistance.
Choosing the best high voltage cable insulation depends on the specific needs of the application. The advantages of high voltage cables with XLPE are high temperature tolerance, excellent chemical and moisture resistance, and superior mechanical properties. These types of high voltage cables are widely used in power transmission and distribution networks, both underground and underwater. Silicone rubber offers exceptional thermal stability, flexibility, and dielectric strength across a wide temperature range. The advantages of high voltage silicone cables are numerous, and it is worth it to take the time to explore them in depth.