Wiring A Spur Off A Ring Main

The rule is that you can spur off one socket from a point within a ring main circuit or unlimited number of fcus fused to 13a.

Wiring a spur off a ring main. A single cable is added from the new socket and connects to an existing socket on. The spur must be connected to the existing circuit using the same cable as used in the main circuit. The main purpose of a spur is adding an extra socket on to an existing ring. The most common is to connect it as a spur and this can be done in two ways.

Ring circuits adding a socket outlet 1 there are three ways of adding a socket outlet to a ring circuit. A general rule for a ring main is that if you only have two. You can see how to wire a spur to an existing socket from the images below. Alternatively the ring can be extended.

The spur not only supplies a socket but may supply fcu s as well. There is nothing to stop you having two spurs from the socket on the ring. A spur is a single wire feed from one outlet with a max load of 20a fused at 13a usually but can be 15a or 16a so clearly you can t run another spur from that and if trying to wire more than one spur into the outlet you will have a lot of trouble getting the wires from two spurs into the connections at the back of a 13a socket and making them secure bear in mind that the terminals are not. Spur from existing socket outlet.

The spur can be taken from any socket or fcu within the ring main circuit.