composite insulator 1.CE,ISO9001 approved; 2.Tensile Strength:210-550kN; 3.Rated Voltage:1000kV. with tensile strength 210-550kN Composite insulator It is suitable for overhead line electrical insulation of suspention or tension.This product has the following characteristics:1)The silicon rubber rain shed, dsigned according to the aerodynamics principle, use the whole--moulding method, to make ...