Safety Alert

Maintenance of industrial uninterruptible power supply (UPS) systems

HSEUK Health and Safety ExecutiveCEMHD1-2022

Maintenance of industrial uninterruptible power supply (UPS) systems

Read at HSEOpens the publisher’s page on hse.gov.uk

Summary

This safety notice examines industrial UPS failures at onshore major hazard establishments, including disrupted emergency power, localised fires and plant shutdowns. It identifies inadequate maintenance information, shorter component lifetimes and outdated firmware, and calls for suppliers to review information and users to update maintenance arrangements using current manufacturer revisions.

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