An integral, unitary cover assembly for covering an electrical connection between first and second electrical cables each having a primary conductor and a neutral conductor includes an inner elastomeric sleeve, an outer elastomeric sleeve, and a collapsible duct. The inner elastomeric sleeve defines a cable passage to receive the electrical connection and the primary conductors of the first and second cables. The outer elastomeric sleeve surrounds the inner sleeve. The collapsible duct is interposed radially between the inner and outer sleeves. The duct defines a neutral conductor passage configured to receive at least one of the neutral conductors therethrough. The duct is selectively collapsible from an initial open configuration to a collapsed configuration about the at least one neutral conductor.