This specification establishes the general characteristics, construction, and material requirements for industrial/commercial racks and enclosures for use by KSC designers as components of facility support systems (FSS), ground support systems (GSS), and ground support equipment (GSE). Design details are provided by engineering drawings or procurement specifications. Electrical racks are defined as floor-mounted, modular, framed containers designed to protect electrical/electronic equipment. Electrical enclosures are defined as floor/wall-mounted cabinets designed to protect electrical/electronic equipment. The requirements for racks/enclosures are categorized by their environment. Standard racks/enclosures are intended for indoor use where they will be protected from harsh vibration and acoustics. Heavy-duty racks/enclosures will be exposed to harsh launch environments. Public access. KSC.