Ring Main Lighting Circuit Diagram

Supply switch and light.

Ring main lighting circuit diagram. The diagram is shown with 6a lighting fuse and 32a ring circuit mcb. In most cases at least one rcd. A cable is run from the junction box to the light usually via a ceiling rose. This switches off everything.

When the switch is in the on position it completes the circuit and supplies power to the lighting fixture when the switch is changed over into the off position. All the light wiring diagrams are available in the old and the new cable colours to avoid confusion. Please observe the wiring diagram above. Multi point radial lighting circuit new cable colours multi point radial lighting circuit old cable colours old multi point radial lighting diagram using junction boxes.

In order to energise the light we need to connect it to the supply available. A single pole switch is the simplest form of electrical wiring. 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. Each protected by a 5 amp fuse or 6 amp trip in the consumer unit.

Consumer unit cu the consumer unit previously called a fusebox contains these things. It goes around the house or a room and connects to all the sockets and fused connection units fcu s required to be on the ring main circuit. Type one lighting circuit. Each house should ideally have at least two lighting circuits.

Use a multi meter to test for a radial or ring main final ring circuit available from our online store here even though the sockets are connected to two cables or 2 5mm and supplied by a 32 amp fuse or mcb it cannot be guaranteed that it is a ring main or final circuit. Basic multi point radial lighting circuit. As you can see a basic lighting circuit consists only of three components. This is usually a distribution board of some sort.

10a lighting circuits are occasionally used. Power is taken from the consumer unit to the first junction box. As you can see the circuit starts and ends at the consumer unit. So before we get stuck in to some wiring diagrams.

20a radial socket circuits. The live is interrupted by the switch wiring and the circuit is carried on to the next junction box. The single way lighting circuit is the simplest of the lighting circuits and consists of a source a switch and a bulb. The second system in popular use is the junction box circuit or system.

In modern domestic properties in the uk the main electric lighting circuits are separate from the power ring main circuit. A single 5 6 amp circuit can cope with up to twelve 100 watt lamps it is usual in a multi. 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.