Cost benefits of LED luminaires in Ex environments

New technologies are being established in the illumination field. In particular, the use of LEDs is beginning to spread more and more in the lighting field. It is very important to analyse and know the possible failure modes of LED sources in order to design reliable and safe lighting fixtures.
This is particularly true in relation to the use of LED lighting equipment in potentially explosive  atmospheres that require quite complex safety systems in order to avoid igniting dangerous gases, vapours and dust. In the present day, ATEX Standards do not adequately cover LED luminaires, whether it relates to white light or coloured light. Therefore, these sources are used as traditional light sources (incandescent, discharge, induction). The safety of such equipment is entrusted exclusively to the mechanical strength of the casing and not the internal electrical equipment.