Provided is a plug-and-socket assembly including a plug configured to be electrically and mechanically coupled with a socket, and a cover configured to be mounted over a portion of the plug and a portion of the socket, the cover including a flange forming a first opening at a proximal end of the cover and configured to be coupled to the socket, a retaining portion forming a second opening at a distal end of the cover, and configured to secure a plug component between the flange and the retaining portion, and a cover body extending from the flange to the retaining portion and forming a longitudinal opening extending from the first opening to the second opening.