The insulating materials should have All Questions › Category: Electrical Estimating And Costing › The insulating materials should have 0 Vote Up Vote Down Rajasri Mundrathi Staff asked 3 years ago Options: a) Non inflammableb) High permittivityc) High dielectric strengthd) (a) & (c) both 1 Answers 0 Vote Up Vote Down Rajasri Mundrathi Staff answered 3 years ago The correct answer is (a) & (c) both