A course can help you describe an electrical problem and understand a proposed repair. Completing its questions does not establish competence to expose, identify, test or alter mains wiring.

Building rules differ across the UK. The legal example below concerns England and is checked against Approved Document P (opens in a new tab), which covers electrical safety in dwellings. Check the nation, work and current requirements with the appropriate building-control body or a registered electrician before commissioning a change.