IET Wiring Regulations BS 7671
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BS 7671:2008 Incorporating Amendment No 1:2011 is the definitive national standard for electrical installation design, erection, and verification in the UK, published by the Institution of Engineering and Technology. It sets out the fundamental safety requirements that all electrical installations must meet, covering everything from domestic wiring to complex industrial systems. Overall, it is an indispensable reference that strikes a careful balance between technical rigour and practical applicability, though its dense regulatory language can be challenging for those new to the field.
Key Features & Specs
| Standard Type | Statutory technical reference and wiring regulations standard for UK electrical installations |
|---|---|
| Coverage | Design, selection, erection, inspection, and testing of low-voltage electrical installations up to 1000 V AC |
| Amendment | Amendment No 1:2011 updates the 2008 edition with revised requirements for special installations and additional safety measures |
| Compatibility | Harmonised with CENELEC HD 60364 series and aligned with IEC 60364 international standards |
| Publisher | Institution of Engineering and Technology, available in print and digital formats |
| Applicability | Applies to new installations, alterations, and additions in residential, commercial, and industrial buildings across the UK |
| Superseded By | Now superseded by BS 7671:2018 (18th Edition), so users requiring current compliance should verify which edition applies to their project |
Best for: Qualified electricians, electrical engineers, building inspectors, and students working toward Part P or City and Guilds qualifications who need authoritative guidance on UK wiring compliance for projects still referencing the 17th Edition framework.