Installing a purge control on a computer or pc enclosure is a popular method for deploying expensive electronics in hazardous areas.
Throughout the world, classified areas are commonplace in manufacturing environments. The classified areas exist to prevent hazardous gases and dust from igniting in the presence of electronics. Based on the National Electrical Code (NEC), there are two divisions used to describe classified areas. Division 1 is more hazardous than Division 2, because dangerous elements are more likely to be present in these areas. Therefore, Division 1 requires a higher level of protection than Division 2 locations.