Composite insulator comprising a fiber-resin rod and an insulating coating molded thereover

A composite insulator comprising:

• a central core of fibers agglomerated by a synthetic resin and two metal end-fittings, each metal end-fitting having an end in the shape of a full cylinder and being arranged end-to-end with a corresponding end of said core, a metal sleeve receiving and securing a corresponding end of said core and a respective metal end-fitting at opposite ends of said core, the exterior surface of each metal sleeve and at least one part of a lateral surface of each metal end-fitting having an elastomer-metal adhesive agent applied thereto, and a very high pressure injected ribbed elastomer coating on said core and on the elastomer-metal adhesive agent applied to the exterior surface of each metal sleeve and to said at least one part of the lateral surface of each metal end-fitting, said metal end-fittings each having only one portion necessary for attachment devoid of said elastomer coating, the adhesion of the elastomer coating to the remaining surface of each metal end-fitting being such that a force greater than 10 Newtons/cm is required to tear off said elastomer coating from the surface of each metal end-fitting.