Arc Fault Detection Devices

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. 

“For additional protection against electrical fires 421.1.7”

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.

What are Arc Fault Detection Devices?

An AFDD is a circuit protection device that detects faults that MCB’s and RCD’s cannot detect.

What do the regulations say?

AFDDS are recommended for the purpose of providing additional protection against fire caused by arc faults in 230V AC final circuits. See 421.1.7 for further details.

Why use Arc Fault Detection Devices?

There were more than 13,500 fires reported in electrical distribution and electrical accessories last year. AFDDs are designed to detect faults that can lead to electrically generated fires and disconnect arc faults before ignition can occur.

Where should Arc Fault Detection Devices be used?

AFDDs should be fitted in consumer units or distribution boards in premises with sleeping accommodation, locations where there is a risk of fire due to the activity within, premises constructed of combustible materials, fire propagating structures such as high rising buildings and locations where there are irreplaceable goods. See 421.1.7 for further details.

Discover more on Arc Fault Detection Devices

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Learn more about Arc Fault Detection Devices

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

Wylex  How Arc Fault Detection Devices could have prevented a real fault  View here
Wylex  Arc Fault Detection Devices. More than recommended?  View here
Crabtree  Why Crabtree has your AFDD Solution  Click 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.

Wylex  Domestic Circuit Protection & AFDD Solutions - Catalogue  Click here
Wylex  Arc Fault Detection Devices - Brochure  Click here
Wylex  AFDD Product References  Click here
Crabtree  AFDD Product References  Click here
Crabtree  Starbreaker Protective Devices - Brochure  Click here
Crabtree  Starbreaker Consumer Units and Devices - Brochure  (Aug 2018)  Click here

 

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Getting the right 18th Edition solution for you

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

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