- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 28 Jun 2019
Amendment 3 BS 7671 Requirements for Electrical Installations IET Wiring Regulations
The British Standards Institution (BSI) publishes standards and provides a range of books, self-assessment tools, conferences and training services. It also represents UK economic and social interests in European and international standards organisations.
BS 7671 Requirements for Electrical Installations. IET Wiring Regulations, sets the standards for electrical installations in the UK. It is published by BSI and the Institution of Engineering and Technology (IET).
On January 1 2015, BS 7671:2008+A3:2015, Amendment No. 3 to the 17th Edition was published. It included changes relating to:
- Consumer units.
- Wiring in escape routes.
- Changes to earth fault loop impedances for all protective devices.
- Updated EIC and EICR forms.
- Changes to definitions.
Amendment 3 came into effect on 1 July 2015, however, the changes in relation to consumer units did not come into effect until 1 January 2016.
From this point, consumer units and similar switchgear assemblies have to comply with BS EN 61439-3 Low-voltage switchgear and controlgear assemblies. Distribution boards intended to be operated by ordinary persons (DBO).
The amendment in relation to consumer units has been made in response to the increase in the number of fires which are thought to have involved consumer units with thermoplastic enclosures in which arcing on cables due to poor electrical connections caused overheating.
The amendment requires that consumer units contain fires, either being constructed using a non-combustible material or being contained within a cabinet constructed using a non-combustible material. It applies to consumer units and similar switchgear assemblies inside domestic premises. It does not apply to non-domestic installations or to outside installations.
- Articles by the Electrical Contractors' Association (ECA).
- Approved document P.
- Consumer unit.
- Electrical appliance.
- Electrical component.
- Electrical installation.
- Electrical safety.
- Glossary of electrical terms.
- Institution of Engineering and Technology.
- International Organisation for Standardisation.
- Protected circuit.
- Publicly available specification.
- The Future of Electricity in Domestic Buildings.
Featured articles and news
Built to defend British waters, only to serve as pirate radio stations later.
Wellbeing to influence mix of home and office based working.
An introduction to cobotics.
Survey reports on outlook for the engineering sector.
A simple path to possible error avoidance.
Construction + technology = ConTech.
New low and high tech tools enter the marketplace.
Report looks at mental health in the built environment.
Radiant wall heating method to control rising damp.
What future infrastructure provision might look like.
Highlighting the health benefits of home improvement.
Pavilions for music, entertainment, and leisure. Book review.
Broadening our understanding of Dublin’s chequered social history.
The charm of London's Cabmen's shelters.
Future Weather Files research tool looking for feedback.
Exploring the Colour Rendering Index.
Why it's important to find out what went wrong.