What are Arc Fault Detection Devices (AFDD)?
Arc Fault Detection Devices AFDDs are advanced safety devices designed to detect and mitigate electrical arcing faults in power systems. Electrical arcing occurs when an electric current flows through an unintended path, often caused by damaged wires or loose connections. This can result in high temperatures, leading to fires and extensive property damage.
What causes an arc
An arc is caused by an electrical current jumping between the gap of 2 conductive materials. The most common causes of arcs are worn-out contacts, a break in a cable, loose connections and damage to any insulation. essentially damage to electrical equipment/devices could cause an arc.
Why do I need an AFDD?
The primary advantage of installing an AFDD lies in the protection it offers. By effectively identifying and promptly responding to both series and parallel arc faults, it significantly reduces the risk of potential fire hazards within electrical circuits. This proactive approach not only enhances safety but also provides homeowners and occupants with added peace of mind regarding the integrity of their electrical systems.
Are AFDDs Required?
AFDDs are not required in most circumstances, however they are recommended. AFDDs are required for socket outlet circuits (up to 32A) where people are likely to sleep e.g. in high-risk residential buildings, in homes, in multiple occupation, in care homes and in purpose-built student accommodation.
Will my electrical installation be safe to use without AFDDs?
If your electrical installation is covered by either an EIC (Electrical Installation Certificate) or an EICR
(Electrical Installation Condition Report) your electrical installation should be safe to use unless damage is caused to the circuit after the issuing of these certificates.
How much do Arc Fault Detection Devices cost?
The cost is fairly broad for AFDDs they range from £70-£200 this is dependent on the type and rating