Product Description Rated voltage SML Creepage distance P.F.withstand voltage (dry) Lightning impulse withstand voltage 27kV 70kN 725mm 100kV 200kV Materials of Product 1).Silicon Rubber for sheds/housing. 2).Glass-fiber reinforced epoxy resin rod (ECR type) for core. 3).Hot dip galvanized cast steel for metal fittings. 4).1000hours aging test & Prototype Test & Type Test & Factory Test ( Routine and Sampling Test ). 5).IEC / ANSI / GB standard. Product Details