Composite Insulator 1)Type: SJI1-12&SJI6-12 2)Material: polymer 3)Rated voltage: 12-15KV Composite InsulatorSARAH HV insulators are made from ... the insulating covering in silicone rubber, getting a highly strustworthy insulator, compact, light, with great mechanical and environmental resistence and ... frequence withstand(wet)(kv)FXBW4-12SJI1-1212-1570/1003551694409545SJI6-12345169 Composite Insulator