الوصف

An electrical junction box (also known as a "jbox") is an enclosure housing electrical connections.[1] Junction boxes protect the electrical connections from the weather, as well as prevent people from accidental electric shocks.Junction boxes form an integral part of a circuit protection system where circuit integrity has to be provided, as for emergency lighting or emergency power lines, or the wiring between a nuclear reactor and a control room. In such an installation, the fireproofing around the incoming or outgoing cables must also be extended to cover the junction box to prevent short circuits inside the box during an accidental fire.