How To Wire A Lighting Circuit Uk

The permanent live wire is wired into the switch and the switched live into the switched live terminal.

How to wire a lighting circuit uk. Once you have mastered the basics. The first step is to wire up the light pendant. The live is interrupted by the switch wiring and the circuit is carried on to the next junction box. Also if we control each lamp by single way spst single pole single through switch in parallel lighting circuit we will be able to switch on off each bulb from from separate switch or if we switch off a bulb the rest lighting points won t affected as is it happens only in series lighting connection where all the connected load would be disconnected.

This is an alternative way of wiring a lighting circuit. Once connected the light pendant should look like this click to enlarge. If this is not the case push in or strip connectors are the preferred way of connecting up the circuit. Without it the blue wire indicates a neutral wire.

The cable going to the light switch is connected as follows fig 2. Each house should ideally have at least two lighting circuits. The red wire from the feed cable is connected to the top terminal the red wire going to. Instead of taking the feed wire from the consumer unit to the ceiling rose it is taken to the switch.

Faults in parallel lighting circuits. In modern domestic properties in the uk the main electric lighting circuits are separate from the power ring main circuit. Once you have read the safety tips a good place to start is by getting up to speed on the basic radial lighting circuit. One way lighting circuit using in line switching.

A cable is run from the junction box to the light usually via a ceiling rose. You must use the brown slewing to indicate the switched line wire. 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. This is how you wire a light pendant.

Once you know this every other lighting circuit will be easy to wire because the principles are the same. Line diagram of a one way lighting circuit using in line method fig 1. Here you can see there is a cut in the line wire connected to lamp 3 so the bulb is switch off and the rest circuit is working. The second system in popular use is the junction box circuit or system.

Power is taken from the consumer unit to the first junction box. Each protected by a 5 amp fuse or 6 amp trip in the consumer unit. A one way light switch is quite easy to wire up. The first length of cable will be from the supply to the light itself.

Usually the light base or pendant provides all the terminals necessary to wire up the lighting circuit. The neutrals are connected together using a terminal connector.