Socket Ring Main Diagram

Its simplicity makes it a great arrangement for that use.

Socket ring main diagram.

As you can see it eliminates the need to wire a socket all the way back to the a consumer unit but the nearest ring main socket is used instead. In the diagram here in and out are the existing ring cables and spur is the new cable leading to the new socket outlet. Consumer unit fuse box is at bottom left. For a radial circuit or spur off a ring main there will only be one cable.

Ring mains as they are called are a series of cables linked together starting and terminating at the same point in a distribution board. The cable size is important it has to be either 2 5sq mm or 4 0sq mm twin core and earth these are rated in free air at 24amps or 32amps respectively. For a radial circuit or spur off a ring main there will only be one cable. Connect the cables as shown in the diagram for a ring main circuit.

Diagram of a possible configuration of ring final circuit. The ring starts at the consumer unit also known as fuse box distribution board or breaker box visits each socket in turn and then returns to the consumer unit. Rear view of double socket showing ring main in and ring main out wiring. Connect the cables as shown in the diagram for a ring main circuit.

The wiring for a junction box can be seen here. Junction boxes come rated for different uses by the amps they are allowed to carry. Make sure that all three wires are secured in each terminal and avoid damaging the wires when replacing the socket. A 30amp junction box should be used on a ring or radial circuit feeding sockets only.

Ring main and spurs. For the rules that govern how tis can be dne please. As before brown is live blue is neutral and the earth wire is bare copper with a green yellow sleeve. The ring is fed from a fuse or circuit breaker in the consumer unit.