Plastic Electrical Junction Boxes :- A Plastic Electrical Junction Box is a container for electrical connections, usually intended to conceal them from sight and deter tampering. A small metal or plastic junction box may form part of an electrical conduit wiring system in a building, or may be buried in the plaster of a wall, concealed behind an access panel or cast into concrete with only the lid showing. It sometimes includes terminals for joining wires. A similar container used for joining wires to electrical switches or sockets is called a pattress. The term may also be used for a larger item such as a piece of street furniture. In the UK, this is sometimes called a cabinet. See Enclosure (electrical). Junction boxes form an integral part of a circuit protection system where c