Arc fault detection devices (AFDDs) complying with to IEC 62606 or equivalent are recommended as a means of providing additional protection against fire caused by arc faults in final circuits. The AFDD shall be placed at the origin of the circuit, if used.

Examples where AFDDs can be used:

(i) premises with sleeping accommodation (e.g. dwellings,
hotels and guest house);
(ii) premises for manufacturing or storing of readily
combustibles substances , or substance liable to spontaneous
combustion;
(iii) premises where combustible materials are used as the main
construction materials (e.g. wooden buildings); and
(iv) premises with endangering or irreplaceable goods.

AFDD_EMSD_Topic2