Wiring Regulations Updates 2016 17th Edition IEE



The wiring regulations as we affectionately call them, are actually a British Standard and have been since 1992, when they formally became BS7671. The current version of the standard is BS7671:2008+A3:2015 and is entitled “Requirements for Electrical Installations. The IET Wiring Regulations” which is periodically published, and updated with current best practice.

There is always an immense level of confusion as to the requirements and legal standing of this document, and its many addendums and amendments. For clarity, BS7671 is not in itself a legal requirement, but is rather a code of practice, which is generally accepted as a minimum level of practice against which compliance with law such as the Electricity at Work Regulations 1989 is likely to be proved and satisfied.

In simple terms, whilst there is no legal obligation to meet the requirements of this standard, it is a desirable minimum framework which electrical installations can be referenced against to meet minimum safety and use criteria.

In common with most other electrical contractors and those in related trades, AFSS Ltd adopts and adheres to the requirements of BS7671, and to regulations updates.


In common with most Standards, the Wiring Regulations are periodically updated and revised too. The latest revision is Amendment 3 which means in effect that it is a minor revision, changing only parts of the standard, rather than a major change, which would increment the “edition number” which is currently 17. You will hear the standard referred to as the 17th edition wiring regulations too.

The changes are, as always, pretty well behind the scenes as far as end users are concerned – after all, an end user will really just want the safest electrical installation possible. The areas of change are significant and are all aimed at increasing safety.

Some of the major changes include revisions around how cables are contained along fire exit routes, which now must be restrained using metallic clips and ties, to prevent the risk of cables becoming an obstruction in the event of fire. Another change revolves around domestic consumer units, which now have to contain terminations in non-conductive way (metal-clad consumer units, for example).

Other changes are to the numbering of to some parts of the standards, changes to lighting requirements, and changes to earth and protection requirements. It is in some ways a comprehensive wiring regulations update, though a minor revision.


At the heart of everything AFSS does for its customers is safety, and keeping up with the latest changes to standards is no exception. Our teams go through extensive training and skills auditing to ensure we always give the best advice, and do the best work possible for you and your business. With our brilliant AFSS 360 Maintenance Plan you are always covered.

Contact AFSS today on 08453 884711 or from mobile on 03330 884711. Alternatively, complete the simple form on the page to find out how we can help you with all electrical and wiring regulations matters.


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