STOP THE MELT:
Why Overloading
Circuits Causes
House Fires
The 13 A socket as the weakest link in any circuit. Continuous load thermal runaway. The "fine for years" myth. What a melted faceplate is actually telling you — and what to do about it.
Inside the Consumer Unit
Components & Protective Devices
Main switch, RCD, MCB, RCBO, SPD and AFDD — each device defined objectively with its BS 7671 role and a summary comparison table.
Preparing for Your Visit
One hub with linkable sheets: installation, EICR, consumer unit upgrade, fault finding, and EV charging. Each includes health and safety, PPE, and a scenario-specific “what to expect” — ideal to send after a client books in.
Open appointment guidesEmergency Safe Isolation Guide
Step-by-step circuit isolation. Medical equipment, vulnerable persons and data — what to consider before switching off.
Read guideBS 7671 Amendment 4 (2026)
Chapter 82 prosumer installations, power quality, battery storage and what changed for domestic installers in 2026.
Read technical breakdownAdvanced Fire & Surge Protection: The Amendment 4 Standard
How AFDDs detect arcing before fuses respond; SPD coordination; 2026 requirements for high-risk settings and older Thanet homes.
Read guideModern Safety Upgrades
Arc Fault Detection Devices (AFDDs)
Fire risk from series arcing versus shock protection from RCDs. Amendment 4 requirements and relevance for older Thanet properties.
Read guideSurge Protection Devices (SPDs)
Transient overvoltage protection for sensitive electronics. Amendment 4 makes documented risk assessment mandatory on board upgrades.
Read guideEV Home Charging (Amendment 4)
PME vs TT earthing, O-PEN detection, CT-clamp load management, bidirectional readiness and RCD type selection for wallboxes.
Read guideEV Charging & Earthing Regulations
Safe EV Charging: Earthing, Load-Shedding & The Grid
PME earthing risks explained. O-PEN protection options. Mandatory CT-clamp load management under Amendment 4 to protect the main house fuse.
Read guideComplete EV Series
Three linked guides on domestic EV supply
From earthing fundamentals to Amendment 4 load management and surge protection coordination — the complete reference for any domestic charge point installation.
Product Selection Guides
LED Selection Guide
2700K vs 4000K, wattage and dimmer compatibility explained.
Read guide → Product SelectionSmoke Alarm Buying Guide
Optical vs Heat vs Ionisation — which type for which room.
Read guide → Product SelectionSmart Thermostat Compatibility
Nest vs Hive vs Tado, C-wires and boiler compatibility.
Read guide → Product SelectionUSB Socket Upgrade Guide
Amperage for fast versus standard charging — what to specify.
Read guide →All Guides
Serving the Isle of Thanet
Need a qualified electrician?
Free quotations across Margate, Ramsgate, Broadstairs, Birchington and Westgate-on-Sea. All work certified under BS 7671.
Roy's Corner
Short weekly updates from Roy — jobs, tips, and what's happening in Thanet.