IET Guidance Note 8: Earthing & Bonding, 6th Edition (2026)
The IET Guidance Note 8: Earthing & Bonding – 18th Edition Amendment 4 (6th Edition) is an essential technical reference for UK electricians, electrical inspectors, designers and installation engineers working to BS 7671:2018+A4:2026 standards. Designed to support compliant electrical installation work, this latest edition provides practical guidance on earthing systems, protective bonding and electrical safety requirements in commercial, industrial and domestic environments.
Produced by the Institution of Engineering and Technology (IET), Guidance Note 8 incorporates updated information from BS 7430 Code of Practice for Earthing, helping electricians and contractors understand best practice for specifying, designing, installing and verifying electrical installations.
Whether you're preparing for the 18th Edition regulations, carrying out inspection and testing or improving your understanding of earthing and bonding arrangements, this IET wiring regulations book delivers clear explanations and practical insight for everyday electrical work across the UK.
How does the IET Guidance Note 8 support electricians in everyday work?
This guidance book helps electricians apply correct earthing and bonding methods in line with the latest IET Wiring Regulations. It is particularly useful for inspection, certification, fault finding and ensuring compliance during electrical installation projects and periodic inspections.
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1 x IET Guidance Note 8: Earthing & Bonding – 18th Edition Amendment 4, 6th Edition
Official IET publication
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