As soon as a new UPS is installed, a process of natural ageing and deterioration begins.

Some components have a higher rate of degradation over time. Unchecked, these components can cause malfunctions or electrical failures leading to the load having its power supply cut off.

Power supply continuity is a vital function for every critical application. Owners and facility management teams are increasingly concerned about keeping their equipment working without performance degradations to avoid unexpected failures.

They are therefore faced with the tasks of understanding how to extend UPS life cycles, identifying which components are the most life-limited, managing their preventive maintenance needs and decreasing unscheduled downtime, all the while reducing global costs by minimising costly breakdowns and shutdowns of the applications.

The aim of this guide is to help users understand the main reliability concepts and to increase their confidence in the management of the UPS system used to protect critical loads.