The term designates a protective fitting used where overhead electrical service wires enter a building or other structure. Typically constructed of metal or durable plastic, it shields the connection points from rain, snow, and other environmental elements. As an example, in a residential setting, it is often observed at the point where the utility’s service drop connects to the homeowner’s electrical system, positioned above the service entrance conduit.
Its primary function is to maintain the integrity of the electrical connection by preventing water ingress, which can cause corrosion, short circuits, and potentially hazardous situations. This contributes to the safety and reliability of the electrical supply. Historically, these fittings have evolved in design and materials to meet changing building codes and environmental demands, reflecting an ongoing commitment to enhanced electrical safety standards.
