Abstract: The invention relates to a device for use in splicing high voltage cables. The device includes an elongated outer semi-conductive section, an elongated inner insulative section and an inner annular semi-conductive section which serves as a corona shield. The inner semi-conductive section has a plurality of circumferentially spaced ribs extending radially inward and having a longitudinal extent which is equal to a major portion of the length of the inner annular semi-conductive member. In use, the bare wire ends of a pair of high voltage cables to be spiced are electrically connected by means of a tubular metal connector. The circumferentially spaced ribs are in electrical and thermal contact with the metal connector.