Maintenance in Hazardous Locations: Installation, Operation, and Maintenance Considerations for Electrical Equipment

Industrial electrical systems require the proper installation, operation, and maintenance (IOM) of equipment for a facility to operate safely and efficiently. Of the many types of electrical installations, those in hazardous areas are likely the most difficult to deal with. Misunderstandings or misinterpretations can easily lead to unsafe conditions that put personnel and facilities at risk. This presentation discusses the critical elements for maintaining various types of hazardous location (HL) equipment. In this article, Class I, Divisions 1 and 2 and Class I, Zones 0, 1, and 2 concepts are discussed.