BS 7430:2026 Protective earthing of electrical installations - Code of practice
Publication Year
2026
Document Status
Current
Abstract
Provides guidance and recommendations for earthing of electrical installations. Relates to low voltage installations, interfaces between LV and HV substations within buildings, protective earthing arrangements for generators running in parallel with distribution network operators or private HV/LV transformers supplying low voltage installations, and protective earthing and changeover switch arrangements for UPS and generators supplying low voltage installations.
Document History
Supersedes BS 7430:2011+A1:2015. Came into effect 31 May 2026.
ISBN
9780539280616
Publisher Information
British Standards Institution
With over 100 years of experience the British Standards Institute is recognised as the UK’s National standards body. Their committees work with the manufacturing and service industries, government, businesses and consumers to facilitate the production of British, European and International standards.
