![]() ![]() They use microprocessor technology to analyse the waveform of the electricity being used to detect any unusual signatures which would signify an arc on the circuit. What are Arc Fault Detection Devices?ĪFDDs are protective devices installed in consumer units to provide protection from arc faults. It is not to say that AFDDs would prevent all of these incidents, but it is likely that the number would be reduced. In 2017/18 there were 74,118 primary fires with 13,070 associated with electrical distribution or other electrical appliance faults, which is still a significant number. Whilst fires in dwellings have decreased significantly over the past ten years, there are still a considerable number of fires which are attributed to electrical faults. ![]() The most common causes of arcs include worn contacts in electrical equipment, damage to insulation, break in a cable and loose connections, to mention a few. An arc is created when the electrical current jumps the gap between two conductive materials. ![]()
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