Wiring Guide
How to Add a Spur from a Ring Main: Rules, Methods and Step-by-Step Guide
Adding a spur from a ring main is one of the most common DIY electrical tasks in the UK. This guide covers BS 7671 spur rules, fused vs unfused spurs, how to find a safe take-off point, step-by-step wiring, and when the work is notifiable under Part P.
Wiring Guide
How to Wire a Fused Connection Unit (FCU): Switched, Unswitched and Spur Rules
A Fused Connection Unit provides fused protection for permanently connected appliances. This UK guide explains how to wire switched and unswitched FCUs, when to use them, fuse ratings, and the rules for adding spurs to ring circuits.
Wiring Guide
Ring Circuit vs Radial Circuit: What's the Difference?
Ring circuits and radial circuits are the two ways to wire socket outlets in UK homes. This guide explains how each works, when to use each, cable sizes, spur rules, and how to simulate both topologies in a free browser-based circuit simulator.