INSULATED WIRE, ELECTRIC EQUIPMENT AND PROCESS FOR PRODUCING INSULATED WIRE

摘要

An insulated wire which comprises a conductor, a foamed insulation layer and a nonfoamed solid layer present on the outer periphery of the foamed insulation layer, wherein the nonfoamed solid layer contains a partial discharge resistant substance. This insulated wire combines a high partial discharge inception voltage, partial discharge resistance, heat resistance and abrasion (scratch) resistance.