Guidance Note 4: Protection Against Fire, 9th edition

Guidance Note 4: Protection Against Fire is a vital guide to an important safety aspect of working with electricity. It is aimed at everyone involved with fire safety in electrical installations, including consulting engineers, electrical installers, inspectors and technicians and has been fully updated to BS 7671:2018:2022.

BS 7671:2018+A2:2022 incorporates changes from the first amendment, published in 2020, regarding Electric Vehicle Charging Installations to provide greater guidance on embracing changing technology within this sector.

Additional changes within the second amendment include:

• Protection against thermal effects and fire caused by electrical equipment


• Protection against voltage disturbances and electromagnetic disturbances


• A new chapter on prosumer's low-voltage electrical installations covering energy efficiency measures and the interface with the smart grid


• The management of electricity consumption


• Management of renewable sources of electricity, and energy storage.