66kv to 765kv Long Rod Composite Insulators Home Products 66kv to 765kv Long Rod Composite Insulators Long Rod Composite Insulators Voltage Rating : 66kV/72.5kV FRP Road Diameter : 18 mm/20 mm Minimum Failing Load : 70kN/90kN/120kN Long Rod Composite Insulators Voltage Rating : 110kV/132kV/145kV FRP Road Diameter : 18 mm/20 mm/24mm Minimum Failing Load : 70kN/90kN/120kN Long Rod Composite Insulators Voltage Rating : 220kV/245kV FRP Road Diameter : 20 mm/24mm Minimum Failing Load : 70kN/90kN/120kN/160kN Long Rod Composite Insulators Voltage Rating : 400kV/420kV FRP Road Diameter : 20 mm/24mm Minimum Failing Load : 90kN/120kN/160kN/210kN Long Rod Composite Insulators Voltage Rating : 765kV/800kV FRP Road Diameter : 24mm Minimum Failing Load : 120kN/160kN/210kN