Lighting Circuit Ring Or Radial

Its advantages over radial circuits ar.

Lighting circuit ring or radial. In modern domestic properties in the uk the main electric lighting circuits are separate from the power ring main circuit. Each protected by a 5 amp fuse or 6 amp trip in the consumer unit. Generally ring circuit require less cable as there are two parallel routes back to the circuit breaker cb at distribution board db which allows thinner cable to be used for the same load what works like two radial circuit or other way we can say one ring circuit may replace by two radial circuits. Most modern socket circuits are ring circuits or ring mains as they are sometimes referred to.

Rings do have the advantage of a high integrity cpc. A ring main brings electricity from the consumer unit through the house. Lighting circuits which typically have lower power requirements are usually radially wired confusingly sometimes called loop wiring. Or one screw in the cu but that applies to radials as well bernardgreen 12 feb 2013.

I don t know of any ring final lighting circuits used in domestic but i hear they are used in commercial or industrial. Always isolate any electrical circuit before working on the circuit. Wiring lighting circuits as a ring circuit in general domestic installations would be troublesome and adding unnecessary complications. If in ring main circuit broken or disconnect any point though it still works but there is slightly vulnerable to certain sorts of breaks in ground protection.

The reduced diameter conductors in the flexible cords connecting an appliance to the plug intended for use with sockets on a ring circuit are individually protected by a fuse in the plug. They are ring circuits radial circuits and lighting circuits. What is ring circuit ring main circuit. With a ring it requires two loose screws to remove the cpc from any sockets.

There are three main types of circuits encountered in a domestic situation. Please also check the rules very carefully for ring mains and radial circuits. To avoid the house being in total darkness if a fuse should blow or trip lighting circuits are split into upstairs and downstairs. It is not good practice in my opinion to wire lighting circuits as a ring because when altering them it is easy to break the ring as you wouldn t expect them to be wired that way.

This design enables the use of smaller diameter wire than would be used in a radial circuit of equivalent total current. Each house should ideally have at least two lighting circuits. Lighting circuits as a radial. A standard radial circuit can be extended from any point or points that provide a permanent live neutral and earth without worries about having a spur off a spur or extending the ring.

If a cartridge fuse is used it should be rated at 5amps if an mcb is used it should be rated at 6amps. In electricity supply design a ring final circuit or ring circuit is an electrical wiring technique developed and primarily used in the united kingdom. The ring main is connected to the consumer unit on both ends which helps lighten the load on the wires.