... electric insulatoral 2)Material:epoxy resin 3)Rated voltage:12kv 4)Series:Post insulator,Capacitive insulator GeneralThis ... 50 Hz ac indoor hv electric equipment, and voltage matching using indicator, reflect high pressure condition, it ... 50 Hz ac indoor hv electric equipment, and voltage matching using indicator, reflect high pressure condition, it ... inside. CG type 12KV isolated voltage sensor