Abstract: A void-free electrical conductor for power cables including a stranded electrical conductor formed of a central member and a plurality of abutting peripheral conducting members, the stranded conductor having a primary layer of electrical insulation heat shrunk about the exterior thereof and having an insulation material completely filling the internal space of the conductor within the primary external electrical insulation layer, the filler insulation adapted to fill all interstices between individual conducting strands outward from the abutment points between peripheral conducting members and the area inside of the abutment points being insulated by the insulation around the central conducting member to thereby form a completely void-free filling of the space within the primary electrical insulation in order to prevent the axial flow of any liquid or gaseous substance therethrough, said primary electrical insulation layer being void-free to increase the dielectric strength of the final electrical conductor c