The Best How To Wire Lighting Ring Main Ideas. This project explains what a final ring circuit or ring main is and how you should correctly wire them up and connect it. What are the problems with the ring circuit (ring main)?
New rules have been introduced for electrical safety in the home, please read this document by clicking here, before starting any electrical work. Ceiling rose wiring diagrams are useful to help understand how modern lighting circuits are wired. The other 2 terminals are for the switch cable and the light fitting or lamp flex.