Dynamic elaboration on the Art & Science of Hazardous Area Protection
Area in which an explosive atmosphere is present, or may be expected to be present, in quantities such as to require special precautions for the construction, installation and use of electrical apparatus
By experience it has been found that Hazardous Area is made of Fire Triangles & Dust Pentagons
Fire triangle explodes on formation and ultimately starts fires by virtue of its constituents which are: –
Additional 2 Parameters exists is case of DUST Pentagons:
This whole domain is of such an importance that IEC (International Electrotechnical Commission) has allocated a complete section of its management and names it as
IEC Ex or International Electrotechnical Commission Explosive
and made it into a System for Certification to Standards Relating to Equipment for use in Explosive Atmospheres.
Ex is abbreviation for Explosive in this case.
The International Standards at the core of IECEx are
IEC 60079 for Electrical
and ISO/IEC 80079 for non-electrical equipment.