Domestic Lighting Circuit Diagram Uk. Just like any loop in loop out radial circuit the switch cable from the ceiling rose contains two wires a permanent live and a switched live. Cable d fig 2 is a three core and earth this is the 3 wire control that links the two light switches together.
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. Just like any loop in loop out radial circuit the switch cable from the ceiling rose contains two wires a permanent live and a switched live.
Unfortunately this is usually encounted in stairwells with the line from the downstairs lighting circuit and the neutral connected to the upstairs lighting circuit.
Each house should ideally have at least two lighting circuits. Cable d fig 2 is a three core and earth this is the 3 wire control that links the two light switches together. The neutrals are connected together using a terminal connector. This is an alternative way of wiring a lighting circuit.
