About UK Electrical Portal
A single place for UK electricians and electrical engineers to run the numbers, see how the machines work, and stay on top of the regulations - built by Adrian King, a UK electrical engineer, not a media company.
Who built it
Adrian King is a UK electrical engineer. He built this as the page he wanted: calculators that show their working, 3D models you can take apart, and plain-English guides. No adverts, no paywall.
What you'll find here
- Sizing Engines & Calculators - 12 plant-room ready calculation engines (cable sizing, max Zs, adiabatic CPC, motor current, volt drop, and generator sizing). Every engine cites the exact BS 7671 regulation and shows complete step-by-step arithmetic.
- Visual Lab - 15 interactive 3D WebGL physics models you can take apart, load up and inspect in real-time — squirrel-cage and wound-rotor induction motors, soft starter SCR phase firing, RCD toroidal sensing, MCB thermal-magnetic curves, and transformer core losses.
- Statutory & Technical Guides - 27 plain-English reference guides across regulations, EICR inspection, renewables and EV infrastructure, industrial motor control, and safe isolation.
- Amendment Tracker - authoritative lifecycle monitoring of BS 7671 amendments and transition deadlines (including the live Amendment 4 Orange Book transition).
- Curated Industry Archive - hand-reviewed, signal-to-noise filtered regulatory briefings, safety alerts, and trade notices. Linked directly to relevant engineering standards.
Who it's for
Working electricians, electrical engineers, apprentices and anyone who deals with UK electrical installation, testing or design. Whether you're pulling cables, signing off EICRs, specifying motor controls or studying for your 18th Edition - the site is built for you, not for advertisers.
Editorial standards
Every news item is read, summarised and categorised before it appears on the site. We link to the original source - we don't republish it. Headlines are the publisher's; summaries are ours. If we get something wrong, we want to know.
Contact
Tips, corrections, feedback or source suggestions: