Modern day industrial automation has increased the need for electric equipment in hazardous areas. These are places where flammable liquids, vapors, gases or combustible dusts could present a fire or explosion hazard. They are also called “Hazardous Locations” or “Explosive Atmospheres” or Ex Areas. The use of equipment, especially electrical, in these areas is generally highly regulated. It is in the interest of industry and governments to ensure that Ex Areas and the personnel working in them are as safe as possible. The IECEx has put in place a number of Conformity Assessment Schemes which provide assurance that equipment and systems are manufactured and operated according to the highest International Standards of safety.