The Importance of Inspections on Electrical Installations in Hazardous Locations

Electrical installations in hazardous locations (classified areas) need careful attention because nonconformities can bring considerable risks not only to the site but also for other industries and residential areas nearby. To assure safe operation of an industrial facility, it is not only necessary for all electrical and electronic equipment to be used in hazardous locations to be correctly specified and purchased (known as “Ex equipment”) but also properly installed and maintained. The discussion in this paper is largely based upon International Electrotechnical Commission standards; however, conceptually, the same philosophy is also found in American standards and installations as well.