A simple UPS preventive maintenance checklist ensures power supply reliability. Visibility, electrical circuit tests, output frequency verification, grounding, and connection tightening are tasks. The following chart shows the theoretical life of a typical 3 phase UPS. For components marked X, Eaton. Maintenance and engineering managers must factor in regular testing and maintenance of a facility's UPS to ensure it remains in peak operating condition, protects critical systems, and keeps them reliably operating as designed.
