UPS Preventive Maintenance: Semi-Annual Checklist
by Botha CG, from the Community
Use this semi-annual UPS preventive maintenance checklist to keep uninterruptible power supply systems reliable and safe. The checklist covers safety preparation and lockout/tagout, visual inspections for heat and damage, cleaning and filter replacement, battery connection checks and impedance testing, relay and meter calibration, circuit breaker testing, lamp replacement, operational transfer testing by simulating power failure, and documentation of voltages, charge rates, and load parameters. Suitable for facilities, data centers, and utilities seeking consistent records and timely battery evaluation.
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