11kv Red Polymer Composite Insulator 70kN Silicon Rubber Type Fxb-24-70. Strong anti-pollution flashover capability: The core material, silicone rubber, is less prone to moisture absorption. which greatly enhances the operational reliability of the power grid in dirty environments. This is its most prominent advantage. Lightweight yet High Strength: Its weight is only one-seventh to one-tenth of that of porcelain insulators of the same grade. yet it boasts extremely high tensile strength, making it convenient for both transportation and installation. Safety and explosion-proof: The material itself will not explode like porcelain or glass, effectively avoiding such severe accidents. It also exhibits better shock resistance and impact resistance. Almost maintenance-free: Thanks to its excellent anti-pollution performance. there is basically no need for manual cleaning and inspection during operation, significantly saving maintenance costs in the later stages.