A fitting for coupling ends of cores of three insulated conductors includes an end termination placed over end portions of the three insulated conductors. The end termination includes three separate openings that pass through the end termination longitudinally. Each of the insulated conductors passes through one of the openings with end portions of the insulated conductors protruding from one side of the end termination. Exposed cores of the end portions of the insulated conductors protrude from the end termination. A cylinder is coupled to the side of the end termination from which the end portions of the insulated conductors protrude. An electrical bus is coupled to the exposed portion of the cores. Electrically insulating material fills the cylinder such that the cores are substantially enclosed in the electrically insulating material. An end cap is coupled to the cylinder to seal off the interior of the cylinder.

A repair sleeve has first and second end portions, each of which has a substantially cylindrical outer surface. The end portions are bored to receive a cable of a particular diameter. The inner surface of each end portion may be stepped or tapered. The center portion of the repair sleeve, between the two end portions, has an interior diameter substantially larger than the nominal diameter of the cable so that the repair sleeve can be use on a frayed cable or a cable with a failing splice. The repair sleeve is split longitudinally into two interlocking portions, which, when separated, allows the damaged cable or failing splice under repair to be inserted into a first one of the portions in a radial direction. The other portion is then inserted into the first portion and the repair sleeve is swaged onto the cable.