IET Guidance Note 4: Protection Against Fire, 10th Edition (2026)
The IET Guidance Note 4: Protection Against Fire – 18th Edition Amendment 4 is an essential technical reference for UK electricians, electrical inspectors, consulting engineers and maintenance professionals responsible for fire safety within electrical installations.
Updated to BS 7671:2018+A4:2026, this latest edition provides practical guidance on reducing fire risks in domestic, commercial and industrial electrical systems. It includes important updates on fire safety legislation, protected escape routes, services between fire compartments and wiring systems for safety services to support compliant installation and inspection work.
Designed for electrical professionals carrying out installation, verification and maintenance work, this IET guidance book helps improve compliance with the latest wiring regulations while supporting safer electrical system design and fire protection practices.
Why is Guidance Note 4 important for electrical fire safety?
This guide helps electricians and contractors apply correct fire protection measures in line with BS 7671 requirements. It is particularly useful when working on fire-resistant wiring systems, escape routes and installations where electrical fire safety is critical.
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1 x IET Guidance Note 4: Protection Against Fire – 18th Edition Amendment 4, 10th Edition
Official IET publication
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