Ring Main Lighting Circuit Diagram Two Way Switch Wiring For Lights

Within the electrical industry the ring main circuit sometimes ring main or ring final circuit is an electrical wiring technique that is most commonly used in the uk.

Ring main lighting circuit diagram.

It is a ring of cables usually 2 5mm carrying twin and earth wires circling your home carrying the mains electricity to sockets on the way. Each house should ideally have at least two lighting circuits. As you can see a basic lighting circuit consists only of three components. This is usually a distribution board of some sort. This arrangement allows the use of conductors with smaller cross sectional areas compared to a regular radial. The ring circuit is made up of two radial circuits connected to the same series of accessories within the circuit.

In modern domestic properties in the uk the main electric lighting circuits are separate from the power ring main circuit. What is a ring main or ring final circuit or final circuit. However in this guide we ll focus on the lighting circuit. First let s have a look at this wiring diagram describing a lighting circuit in its most basic form. In practice meeting this requirement is rarely an issue. In order to energise the light we need to connect it to the supply available.

Basic multi point radial lighting circuit. Each protected by a 5 amp fuse or 6 amp trip in the consumer unit. All the light wiring diagrams are available in the old and the new cable colours to avoid confusion. Cable rating for cables used in a ring main must be no less than two thirds of the rating of the ring main s protective device. Usually the protective devices used on a ring main will be a 30 a fuse 30 a breaker or 32 a breaker and the cables are usually 2 5mm in size. 2 way light switch 3 wire system new harmonised cable colours.

It gets the power from the consumer unit and delivers it to the sockets. A single 5 6 amp circuit can cope with up to twelve 100 watt lamps it is usual in a multi storey house to have at least one lighting circuit. The live wire carries current. 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 ring main or final circuit is exactly what it says on the tin. In a ring circuit the live neutral and earth wires form a loop of cable going from the consumer unit to all of the sockets in turn and then back to the consumer unit.

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.