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 and we will have some new products which will help you to comply. We’ll be looking closely at Arc Fault Detection Devices (AFDDs), Surge Protection and RCD's.

During the next few weeks we'll be sharing some of the key changes in the 18th Edition on the sliders above, with more topics added each week.

Check out the links below and see what we have to say about the 18th Edition.

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. 

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.

Read it here.

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.

See it in action

We've put together a demo video on an arc fault detection devices in action.



Find out more

Find out what you need to know about AFDDS below.



AFDD Solutions - Catalogue Click here
 Crabtree Starbreaker Protective Devices - Brochure Click here



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

Now, ovevoltage 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 largenumber 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. 

Find out more about surge protection devices below.

Wylex SPD Solution (Distribution Boards) Click here




We'll have more on Residual Current Devices (RCDs) in the 18th Edition coming soon.

Keep checking back.


We have solutions to help you comply with the 18th Edition of the 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 projet above and beyond your clients expectations.

Find a colleague in your local area here.


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