UPS and battery maintenance
Batteries fail one block at a time and impedance shows which one. The discharge test still proves the whole string can carry the load.
What does uPS and battery maintenance involve?
UPS and battery maintenance checks: impedance per block, float voltage per block, temperature, discharge test capacity. Observed by battery monitoring system reading impedance and voltage continuously; annual discharge test. Impedance and voltage convert to a monitoring system; the periodic discharge or load-bank test stays because only it proves the capacity.
- Condition that replaces the interval
- Cell or block impedance above the baseline by 25%, string voltage deviation, temperature above 25 C, or a discharge test delivering less than 80% of rated capacity
- Reading that proves it
- Impedance per block, float voltage per block, temperature, discharge test capacity
- Why the interval stays
- Impedance and voltage convert to a monitoring system; the periodic discharge or load-bank test stays because only it proves the capacity.
- Evidence an auditor accepts
- Battery monitoring export and the discharge test record per string
- First move
- Record impedance per block on the register at the next check and set the alarm at 25% above that baseline.
What it is evidence for
Clause references from the published standards text. A clause marked reference is named, not reproduced.
Calendar tasks a monitored condition could replace ISO 55001:2014 9.1 · ISO 55001:2014 8.1 · ISO 55001:2014 6.2.2 · ISO 55001:2014 8.2 · ISO 55001:2014 10.3 · ISO 45001:2018 8.1.3
ISO 55001:2014 9.1 Monitoring, measurement, analysis and evaluationThe organization decides what is to be monitored and measured, which methods of monitoring, measurement, analysis and evaluation will give valid results, when monitoring and measuring take place, and when results are analysed and evaluated. It assesses and reports on how the assets perform, on how asset management perf...
ISO 55001:2014 8.1 Operational planning and controlThe organization plans, carries out and controls the processes needed to satisfy requirements and to deliver three things: the asset management plans set out under 6.2, the actions on risks and opportunities decided under 6.1, and the preventive and corrective actions decided under clauses 10.1 and 10.2. It does so by ...
ISO 55001:2014 6.2.2 Planning to achieve asset management objectivesThe organization joins up its planning for asset management objectives with the rest of its planning, including finance, human resources and other support functions. It sets up, documents and maintains asset management plans that state the method and criteria for making decisions, the processes and methods for managing...
ISO 55001:2014 8.2 Management of changeBefore any planned change is made, whether temporary or permanent, that could affect whether the asset management objectives are met, its risks are assessed, and the organization makes sure those risks are handled as 6.1 and 6.2.2 require. It controls changes it has planned and reviews the consequences of changes that ...
ISO 55001:2014 10.3 Continual improvementThe organization keeps making both its asset management and its system for it more suitable, more adequate and more effective.
ISO 45001:2018 8.1.3 Management of changeThe organization sets up processes to put in place, and keep under control, planned changes, temporary or permanent, that affect OH&S performance. These include: new products, services and processes, or alterations to existing ones (such as where workplaces are and what surrounds them, how work is organized, working co...
Do this for your whole schedule
Paste your maintenance schedule or log and get this classification for every line at once, with the findings, the overdue items and the clauses the register is evidence for. First 15 items free, no account.
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