Disc Insulator is used for insulation in cables and electrical wiring to sustain high voltage under heavy loads. This is a type of high-grade wet insulation manufactured by procedures like brown-green glazing. Its relative permittivity is high for insulating material. It makes use of non-porous or waterproof materials. Disc Insulator is very effective as well as economical to use. Systems for transmission and distribution use this. This insulator's designs mostly alter in response to consumer demands.