Uk Domestic Lighting Circuit Diagram

So before we get stuck in to some wiring diagrams.

Uk domestic lighting circuit diagram. 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. Whether it is the switching of a light from two different places inside a domestic dwelling or switching a series of lights in a commercial environment two way lighting circuits provide a cost effective and easy solution. Similarly to a simple one way lighting. It can also be used in domestic properties by using twin earth cable between the switches and 1core earth from the switches to the ceiling rose.

Instead of taking the feed wire from the consumer unit to the ceiling rose it is taken to the switch. The live is interrupted by the switch wiring and the circuit is carried on to the next junction box. Let s have a look at a basic circuit diagram describing two way switch wiring. 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.

Power is taken from the consumer unit to the first junction box. Unfortunately this is usually encounted in stairwells with the line from the downstairs lighting circuit and the neutral connected to the upstairs lighting circuit. Type one lighting circuit. The second system in popular use is the junction box circuit or system.

Extending the lighting circuit. In modern domestic properties in the uk the main electric lighting circuits are separate from the power ring main circuit. All the light wiring diagrams are available in the old and the new cable colours to avoid confusion. The neutrals are connected together using a terminal connector.

Each house should ideally have at least two lighting circuits. In effect this is exactly the same wiring as the diagram on the top of the page but with the utilisation of the flat twin earth cable. 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. In addition most homes have low voltage electrical systems with transformers that convert standard power to a lower safer voltage typically from 6 to 12 volts for doorbells intercoms security systems low voltage interior and exterior lighting and the like.

This is an alternative way of wiring a lighting circuit. A cable is run from the junction box to the light usually via a ceiling rose. Once tested and connected to the live supply the lighting circuit will be operational. Each protected by a 5 amp fuse or 6 amp trip in the consumer unit.