Home Lighting Circuit Uk

However in this guide we ll focus on the lighting circuit wiring.

Home lighting circuit uk. Each protected by a 5 amp fuse or 6 amp trip in the consumer unit. The live is interrupted by the switch wiring and the circuit is carried on to the next junction box. A lighting circuit is protected by a 5 or 6 amp fuse or circuit breaker. However the fact that there is a switch included does seem to cause issues particularly when someone has purchased a fancy new light fitting from b q pulled down the old ceiling rose and then finds 9 wires in the ceiling and only 3 connections in the new fitting.

This is usually a distribution board of some sort. The second system in popular use is the junction box circuit or system. After the main switch the incoming power supply is split to several circuits such as power light and appliance. In modern domestic properties in the uk the main electric lighting circuits are separate from the power ring main circuit.

Radial circuits are used for lighting there is one lighting circuit on each lighting mcb lighting circuits are usually on a 6a mcb or 5a fuse though 10a can be used with some extra restrictions now removed in the 17th edition of the wiring regs for large circuits however if the area served is large more 5a or 6a circuits would in most cases be preferable. In order to energise the light we need to connect it to the supply available. When the circuit draws current above the mcb rated current the mcb trips and turns off the power to protect the devices on that circuit. As you can see a basic lighting circuit consists only of three components.

In effect it is a radial circuit whose final termination is made back to the originating distribution board rather than at the last outlet or device serviced. A ring circuit is a uk standard means for wiring domestic and other light commercial premises not often seen elsewhere in the world. Basics of uk lighting circuits connections to ceiling rose and light switch. Each house should ideally have at least two lighting circuits.

Supply switch and light. Type one lighting circuit. Lighting circuits are not usually complex or difficult to understand. We have and extensive collection of common lighting arrangements with detailed lighting circuit diagrams light wiring diagrams and a breakdown of all the components used in lighting circuits.

A cable is run from the junction box to the light usually via a ceiling rose. Each circuit is protected controlled by a miniature circuit breaker mcb.