18th Edition

The 18th Edition of the Wiring Regulations is here.

Published on 1st July 2018, for the moment you can use either the 17th or 18th Edition regulations, but from the 1st January 2019 the new regulations must be used in all designs and installations.

The 18th Edition of the IET Wiring Regulations presents some new opportunities for the industry from the changes. These provide further safety measures for installers to provide for their customers as well as a focus on energy efficiency.

Here at Electrium we're putting together a host of content that will give you insight on the latest changes. We’ll be looking closely at Arc Fault Detection Devices (AFDDs), Surge Protection and more.

This area is here for information purposes. Designers and installers should obtain their own copy of BS7671:2018 and follow the requirements and recommendations in the 18th Edition of the IET Wiring Regulations.  

Order your copy here. 

18th Edition Wiring Regulations Key Changes

 The latest edition to the wiring regulations, the 18th Edition, has brought about changes which will affect what you do.

 We've put together some of the key changes that you need to know. Get some insight from the boxes below.

  18th Edition Wiring Regulations Key Changes          18th Edition Wiring Regulations Guide


Arc Fault Detection Devices 18th Edition

AFDDs are a new addition to the 18th Edition of the Wiring Regulations and have been included to provide protection against arc faults that can lead to electrically ignited fires. Arc Fault Detection Devices have been recommended for this purpose. There are requirements within the 18th Edition to protect against arching and burning, insulation faults, arcs, sparks and high temperature particles.

Why Arc Fault Detection Devices?

It's an important part of your next installation and can provide further safety to your clients. 

Watch our demonstration video below on how Arc Fault Detection Devices work.

We've also gone into further detail to explain why AFDDs can benefit your next project and why should you be wary of arcing in our feature below.

      Arc Fault Detection Devices Video Demonstration 18th Edition   Arc Fault Detection Devices Benefits and Features 18th Edition


Learn more about Arc Fault Detection Devices

Find out what you need to know about Arc Fault Detection Devices below.


 18th Edition - Bitesize guide to some of the new regulations.  Download here


 VIDEO - Benefits and Features of Wylex AFDDs.  Watch here


 How Arc Fault Detection Devices could have prevented a real fault  View here

 Wylex *NEW*

 Arc Fault Detection Devices. More than recommended?  View here
 Crabtree  Why Crabtree has your AFDD Solution  Click here
 Crabtree  VIDEO - Benefits and features of Crabtree AFDDs.  Watch here


Get the 18th Edition Solution 

Our leading brands have the Arc Fault Detection Device you need for your next project.

Discover our AFDDs solutions and further information below.


 Domestic Circuit Protection & AFDD Solutions - Catalogue  Click here


 Arc Fault Detection Devices - Brochure  Click here


 AFDD Product References  Click here


 AFDD Product References  Click here
 Crabtree  Starbreaker Protective Devices - Brochure  Click here
 Crabtree  Starbreaker Consumer Units and Devices - Brochure  (Aug 2018)  Click here



Surge Protection Devices 18th Edition

Within the 17th Edition of the Wiring Regulations, the requirements of surge protection were determined through risk assessment methods.

Now, overvoltage protection must be provided in certain circumstances. For example, where there is risk of serious injury, where there is a risk of loss of human life or a large number of co-located individuals are affected, where there is an interruption to public services and where there is an interruption to commercial or industrial activity. Other requirements are contained in 443.4

For circumstances where overvoltage protection is not required, a risk assessment can be carried out. If a risk assessment is not carried out, overvoltage protection must be provided. 

Using Surge Protection Devices 


Learn more about Surge Protection

Find out more about surge protection devices and our leading brands solutions below.

 Electrium  18th Edition - Bitesize guide to some of the new regulations.  Download here
 Crabtree  Requirements for Overvoltage Protection Guide  Click here
 Crabtree *NEW*  Exploring the requirements for Overvoltage Protection  Discover here


Get the 18th Edition solution

Discover our Surge Protection Devices for your next project as well as further information:

 Wylex  SPD Solution (Distribution Boards)  Click here
 Crabtree  SPD Solution (Distribution Boards)  Click here


Consumer Units 18th Edition

The 18th Edition of the Wiring Regulations will change how you carry out domestic installations with consumer units.

One of our leading brands, Wylex, has put together a FREE guide to help you when installing consumer units for the 18th Edition.


Learn More about Consumer Units and the 18th Edition

 Wylex *NEW*  Consumer Units and the Future - 18th Edition FREE Poster.  Download here
 Crabtree  How to pick the right consumer unit and what to put in it   Click here
 Electrium  18th Edition - Bitesize guide to some of the new regulations.  Download here


Getting the right 18th Edition solution for you

We have solutions to help you comply with the 18th Edition Wiring Regulations.

Our colleagues are based throughout the UK, and have local knowledge of your area. Chat with our team today and see how we can help you deliver your next project above and beyond your clients expectations.

Find a colleague in your local area here.

Get a 18th Edition solution in your area

Our 18th Edition solutions are available to you in your local area thanks to our network of wholesalers and stockists. 

Use our 'Find a Stockist' service to discover your nearest supplier of 18th Edition products from our leading brands such as Crabtree and Wylex.

Find your 18th Edition solution here

Get the latest 18th Edition Info

Sign up to our newsletter and get all the latest information for our leading brands, including content on the 18th Edition of the Wiring Regulations.

Click here to sign up. 


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