This Recommended Practice describes installation procedures for lighting systems commonly used in industrial and storage buildings, including high intensity discharge (HID) low-bay and high-bay lighting systems, fluorescent strip lights and general purpose industrial overhead lighting systems, common special-purpose and special-environment industrial luminaires, and lighting installed on industrial wireway and track lighting systems. In addition to the luminaire(s) proper, this standard includes related construction materials, including lamps, conduit, wire, various special screws and clips, structural suspension components, and other related components and parts. All recommendations of this practice are intended to comply with the National Electrical Code.