Sockets can have automatic shutters to prevent international objects from remaining inserted into energized contacts.[1] Sockets are sometimes established into a surround which prevents accidental contact with the Dwell wires during the wall behind it. Some also have an integrated go over (e.g. a hinged flap) covering the socket by https://typesofplugtops45554.blogs100.com/29825926/not-known-facts-about-different-types-of-male-electrical-plugs