When working in hazardous areas where an explosive atmosphere is present, it is paramount that you can trust the precautions taken to safeguard any potential ignition points from electrical apparatus.
Ex areas can be known by different names such as "Hazardous Locations", "Hazardous Areas" "Explosive Atmospheres", and the like and relate to areas where flammable liquids, vapours, gases or combustible dusts are likely to occur in quantities sufficient to cause a fire or explosion.
The modern day automation of industry has meant an increased need to use equipment in Ex areas. Such equipment is termed "Ex equipment" Where do you commonly find Ex equipment?