Regulation Changes: 18th edition amendment 2

We’ve developed our Hub to be your source of information and guidance through these changes, where you’ll find everything you need to know and how it affects you.

Download Our Bitesize Guide

Corrigendum (May 2023) to BS 7671:2018+A2:2022

Click below to read the latest update to the Amendment 2 of the Wiring Regulations.

Read the Corrigendum

Understanding the changes

Discover the new changes, how they will affect you and what you can do to make sure you are following the latest regulations.

Overview of the changes

Read our overview of 18th Edition Amendment 2 to understand the latest changes to the Wiring Regulations.

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Consumer unit label changes

The important area of certificate documentation, identification labelling and testing has been highlighted in the new regulations.

Consumer unit labelling

BEAMA Guides | 18th Edition Amendment 2

A collection of the latest BEAMA guides relating to 18th Edition Amendment 2, Hager is proud to be a technical contributor to these guides which provide technical advice on a range of 18th Edition related topics.

BEAMA Guides to Amendment 2 changes

Answering your questions

We’re here to support you. Find all the answers to your questions and see our latest product solutions, supporting you through the changes.

Hager's take on Amendment 2

Five minutes with Marketing and Support Services Manager, Ian Smith, to get our view on the impact of the changes.

Electrical Vehicle Charging in the home

Ian Wassell, Training and Technical Support Manager explains about amending a pre-installed consumer unit to safely incorporate an electric vehicle charging device.

An Integrated Solution Compliant with Amendment 2

Paul Collins, Technical Training Manager, explains how our market-leading SPD boards for residential installations are offering a ‘ready-to-go’ integrated solution compliant with Amendment 2.

Commercial SPD boards offering a ‘ready-to-go’ integrated solution

Mike Lawrence, Commercial Building Solutions Consultant, explores our market-leading integrated solution for commercial installations that's compliant with Amendment 2.

Housebuilders and Amendment 2

Following the publication of Amendment 2, Ash Knowles, National Residential Specification Manager, explains the main changes and what they mean for housebuilders.

An AFDD game changer to protect homes and devices

Ash Knowles explains why Hager's new AFDD with ProTools is the ideal solution for housebuilders looking to provide the highest standards of safety protection for their clients.

AFDD with ProTools

As of September 2022, the use of AFDDs is mandatory in certain types of installations. Our next generation of single module wide AFDDs all come with advanced ProTools diagnostic software as standard. Discover how you can remain compliant and ease installation with using our AFDDs.

Learn more

Learn with Hager

From online training courses available at a date and time to suit you to webinars and on-site training, we have an offer to help you navigate and understand Amendment 2.

Download your Bitesize Guide

Understand the changes with our handy bitesize guide that breaks down the key topics - click to download your digital copy here.

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Book your webinar

Join Paul Collins and Ian Wassell to hear about the regulation changes and ask your questions. Receive a certificate for completing the webinar.

18th Edition articles

Read about BS 7671:2018+A1:2020

Surge Protection | Reality Check

29th July 2019

Our poll highlighted almost one in three contractors were unsure about their responsibilities around surge protection, with selecting appropriate solutions for both residential and commercial installations the biggest area of confusion.

18th Edition Changes | Hager Survey

18th May 2019

Our survey of electrical professionals shows that many still admit to lacking confidence when it comes to fully understanding the changes.

Updated Guidance on RCCB Testing

15th March 2019
Market feedback indicates that there may be a general issue around how to correctly test 30 mA RCCBs set to 0.25 A. Find out more here.

18th Edition Changes | Bitesize Guide

1st March 2019

This guide covers several main topics regarding the changes with the 18th Edition regulations.

18th Edition Changes | BEAMA Guides

1st December 2018

Hager are proud to be a technical contributor to these guides which provide technical advice on a range of 18th Edition related topics.

RCD Selection | What you need to know

12th November 2018

Everything you need to know about the selection of RCD types.

Surge Protection | What you need to know

7th March 2018

Everything you need to know about Surge Protection & the 18th Edition.

Arc Fault Detection | What you need to know

11th November 2018

Everything you need to know about Arc Fault Detection Devices & the 18th Edition.

Overload Protection | What you need to know

30th April 2019

Everything you need to know about overload protection of Switches and RCCBs.

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Have some questions?

Check out our FAQ section to answer some questions you may have.

What's new with 18th Edition Wiring regulations?

The 2nd Amendment of the 18th Edition Wiring Regulations, came into affect 28th March 2022. BS7671:2018 +Amd2:2022. Probably the biggest change to be aware of in Amendment 2, is that the use of Arc Fault Detection Devices (AFDD) have changed from being recommended to a mandatory use in certain types of installations.

With the increase of new technologies being introduced and more widely used, these devices are becoming more vitality important to provide additional protection against fire.

Regulation 421.1.7 now states AFDD conforming to BS EN 62606 shall be provided for single-phase AC final circuits supplying socket-outlets with a rated current not exceeding 32 A in:

- Higher Risk Residential Buildings (HRRB) : Higher Risk Residential Buildings are assumed to be residential buildings over 18 m in height or in excess of six storeys, whichever is met first. Should this building incorporate a business premises on the ground floor for example then this too could fall under this requirement.

- Houses in Multiple Occupation (HMO) : A house in multiple occupation is a property rented out by at least three people who are not from one “Household” but share facilities like a bathroom or kitchen.- Purpose-Built Student Accommodation (PBSA) : PBSA is housing built specifically for students to live in.- Care homes : A care home is a place where personal care and accommodation are provided together.
When did BS 7671 Amendment 2 come into force?

Bs7671 amendment 2 has been issued 28th March 2022, implemented 27th September 2022
Are AFDDs mandatory ?

18th edition of the 2nd Amendment of the IET Wiring Regulations, came into affect 28th March 2022. BS7671:2018 +Amd2:2022. One of the key alterations brought about by Amendment 2 is the shift from recommending the use of Arc Fault Detection Devices (AFDD) to making it mandatory in specific types of installations.

Regulation Changes: 18th edition amendment 2

Corrigendum (May 2023) to BS 7671:2018+A2:2022

Click below to read the latest update to the Amendment 2 of the Wiring Regulations.