Wiring Ring Main To Consumer Unit

This means in simple terms that every socket on the ring circuit has two cable routes back to the supply.

Wiring ring main to consumer unit. The ring is formed by the cable going from the consumer unit to the first socket then on to the second socket and then the next socket etc. Choose a screwdriver that is appropriate to the size of the screw. Neutral link cable from main switch to terminal block. Typical house wiring diagram illustrates each type of circuit.

A modern consumer unit as pictured above houses modular electrical devices called circuit breakers. In a typical new town house wiring system we have. As you can see it eliminates the need to wire a socket all the way back to the a consumer unit but the nearest ring main socket is used instead. In an electrical power distribution system a ring main unit rmu is a factory assembled metal enclosed set of switchgear used at the load connection points of a ring type distribution network.

Generally 80 100 amp rcd with 30ma milliamp sensitivity f. Neutral terminal block for the main isolating switch side of the unit b. Design and protection for ring main circuits. Use sharp cutters strippers knives.

It includes in one unit two switches that can connect the load to either or both main conductors and a fusible switch or circuit breaker and switch that feed a distribution transformer. Ring circuits from 32a mcbs in the cu supplying mains sockets. Its simplicity makes it a great arrangement for that use. How to wire a garage consumer unit diagram wiring diagram is a simplified good enough pictorial representation of an electrical circuit it shows the components of the circuit as simplified shapes and the capability and signal contacts together with the devices.

The radial circuit can be turned into a ring circuit by completing the wiring back to the consumer unit and similarly the ring main or final circuit ring can be turned into two radial mains by removing a section of the ring. 5 best practice tools make sure that all tools used are in good condition. There are 4 main kinds of circuit breakers in a common household. Main switch mcb and rcd.

The main purpose of a spur is adding an extra socket on to an existing ring main circuit. A split load cu. Blunt tools can be more dangerous than sharp and produce an inferior cut. The ring is fed from a fuse or circuit breaker in the consumer unit.

The key to the above image is. 2 such rings is typical for a 2 up 2 down larger houses have more. Earth terminal block takes both sides of unit d. The consumer unit or commonly known as fuse box is the heart of a home wiring installation.

Ring circuits are commonly used in british wiring with socket outlets taking fused plugs to bs 1363 because the breaker rating is much higher than that of any. Until the cable returns to the consumer unit. Choose a screwdriver that correctly fits the screwhead fig 3 consumer unit manufacturers can advise on this. It is usually mounted near the energy meter.

Main double pole isolating switch e.