How To Wire A Ring Main Circuit

It can serve an area up to 120 square yards.

How to wire a ring main circuit. Ring mains as they are called are a series of cables linked together starting and terminating at the same point in a distribution board. Its simplicity makes it a great arrangement for that use. In electricity supply design a ring final circuit or ring circuit often incorrectly called a ring main a term used historically or informally a ring is an electrical wiring technique developed and primarily used in the united kingdom this design enables the use of smaller diameter wire than would be used in a radial circuit of equivalent total current. Please also check the rules very carefully for ring mains and radial circuits.

Wiring regulation certification certification niceic napit. Ring main and spurs. Wiring a socket correctly in a final ring circuit or ring main. They are not so common in the uk but are used extensively abroad as the ring main or final ring circuit does have it s drawbacks.

The ring circuit or ring main as it is often called starts at the consumer unit and returns to the consumer unit. You are limited in the length of cable you are allowed to use in both circuits and long spurs could make you exceed the limit. 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. If this is the case you are asking the circuit to use much more energy than the circuit is designed for.

The other type of circuit used to power your home is a radial circuit. It is normally protected by a 30 amp fuse or 32amp circuit breaker it can have any number of sockets or fused connection units on it but the maximum load is 7200 watts. Ring main unit as an important part of secondary distribution circuit breaker wikipedia wiring a house ring main wiring diagram view. Wiring a ring main electrical wiring wiring a circuit 2 5mm electrical cable with neutral wire live wire and bare earth wire floor area for a ring main or final ring circuit the floor area a ring main serves is.

Facebook twitter reddit pinterest tumblr whatsapp email link. We have accumulated numerous images hopefully this image is useful for you and also assist you in discovering the answer you are trying to find. 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. This official sponsor may provide discounts for members.