ABSTRACT
The process by which two or more electrically charged elements are kept apart, or isolated from each other and from the surroundings, is called insulation. In an electrical system, insulation keeps two or more conductors separated from each other and does not allow current to pass from one conductor to the other in the radial direction. The insulation should be able to resist the radial pressure of electrical stress when power is transmitted through a conductor. However, a complete isolation is an ideal condition.
