– Lighting systems
– Motor-generator sets
– Air conditioners
Locations with damp or corrosive conditions.
Class I: classified locations where ignitable vapors or gases are present such as:
– Petrochemical plants
– Petroleum refineries
– Paint and chemical plants
Class II: classified locations such as:
– Process industries where there are dust hazards from handling such products as flour, grain and starch or any location where ignitable amounts of dust are present or amounts which would adversely affect performance.