Electrical Information Pages

These pages contain a variety of electrical information. Topics are being added and expanded regularly, so even if you have seen some pages before, there is probably something new.

To navigate within the topic pages, use the navigation menu at the left of each page. Photographs and diagrams can be enlarged by clicking on them.


13A / BS1363 Plugs - Wiring plugs and what not to do with them
Cables and Wiring - Electrical cables and wires of various types
Central Heating - Wiring details for central heating controls
Consumer Units - Consumer units and the items contained within, including circuit breakers, RCDs and RCBOs.
Installation Accessories - Installation materials and accessories for UK electrical installations
Installation Inspections - Examples of actual electrical installations and various problems encountered
Lamps & Lighting - Details of various lighting equipment including different types of lamps and luminaires
Lighting Circuits - Diagrams and methods of wiring lighting circuits
Saving Electricity - How to make savings for little or no cost
Socket Outlet Circuits - Wiring details for various types of socket outlet
Steel Conduit - Using and installing steel electrical conduit including threading, bending and the tools required
Supply Types - Incoming electricity supplies

Most recent update - 26th October 2019

NEW UK Electricity Supply Example - Who Owns What - Photo and video explaining who owns which items of equipment for a typical UK electricity supply to a smaller property..

Previous update - 14th May 2019

Y Plan Heating with Unvented Cylinder and 2 Port Valve - Wiring for a 2 port valve and high limit thermostat when installing an unvented hot water cylinder on a Y plan heating system.

Older update - 11th May 2019

Installation Materials and Accessories - Installation materials and accessories for UK electrical installations, such as metal backboxes, plastic pattresses, crimps, wire connectors.
Metal Backboxes for Flush Mounting Accessories - Galvanised steel boxes for flush mounting UK electrical items such as switches, sockets and cooker controls.
Plastic Pattresses and Flush Plastic Backboxes - Moulded plastic electrical pattresses and flush mount plastic boxes for fixing UK electrical accessories into plasterboard walls.

This section contains 89 pages of information.

Please read ALL of this page before anything else


Before working on any electrical circuits, switch off the power at the main fusebox or consumer unit, and confirm that the circuit is dead. DO NOT assume anything - faulty wiring or previous bodges could result in unexpected live wires.

Never work on a live circuit - it could easily kill you, or someone else in your family.


The information here relates to electrical wiring in the United Kingdom only. This is very important, as other countries will have different methods, standards and regulations for electrical work.

Part P

Part P is a section of the Building Regulations covering electrical work in England and Wales. While DIY work is still allowed, there are additional requirements to consider before starting any electrical work in your home. For further details, please see the Part P page.

Terms and Conditions

Please read the Terms and Conditions page.