This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong. ==== Insulation ==== Insulation is a conformant coating of the wire intended to isolate the electricity flowing across the inner conductor from the surrounding environment, as well as protect the strand(s) from environmental damage. Insulation is commonly made of some sort of plastic, but can also be made of enamel, cloth, crushed up rock, silicone or any other suitable dielectric.