MaintenanceLog Converter
Every task type · Electrical

Switchgear and distribution board maintenance

The board tells you its temperature and its breakers count their own operations. The relay test is the one thing nobody can monitor from outside and it stays.

What does switchgear and distribution board maintenance involve?

Switchgear and distribution board maintenance checks: temperature rise per connection, partial discharge level, breaker operation count, contact resistance, protection relay trip time. Observed by thermal sensing or survey, partial discharge monitor on HV, breaker counter, micro-ohmmeter at the check. Temperature, discharge and operation count convert; the protection relay test and the internal clean and torque check stay on an interval set by the manufacturer and, for HV, by the network operator.

partly
part of the task converts to a condition and part stays on the calendar
Thermal sensing or survey, partial discharge monitor on HV, breaker counter, micro-ohmmeter at the check
how the condition is observed
Electrical
asset class
Condition that replaces the interval
Connection temperature rise, partial discharge activity above baseline (HV), breaker operation count reaching the maintenance count, contact resistance above the limit, or trip test result out of tolerance
Reading that proves it
Temperature rise per connection, partial discharge level, breaker operation count, contact resistance, protection relay trip time
Why the interval stays
Temperature, discharge and operation count convert; the protection relay test and the internal clean and torque check stay on an interval set by the manufacturer and, for HV, by the network operator.
Evidence an auditor accepts
Maintenance record per board with the readings and the protection test results
First move
Fit temperature sensors on the main incomer terminations first; that is where the load and the consequence are.

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 evaluation

The 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...

Evidence an auditor accepts: Performance measurement framework covering asset, asset management and system performance; Condition, reliability and cost data with defined collection methods; Periodic performance reports (financial and non-financial)
ISO 55001:2014 8.1 Operational planning and control

The 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 ...

Evidence an auditor accepts: Procedures and work instructions for life-cycle activities (acquire, operate, maintain, renew, dispose); Process criteria and performance measures; Work records demonstrating activities carried out as planned
ISO 55001:2014 6.2.2 Planning to achieve asset management objectives

The 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...

Evidence an auditor accepts: Asset management plans per asset class or system with activities, resources, owners and dates; Documented decision-making method and criteria for prioritising activities; Life-cycle cost or whole-of-life models supporting the plans
ISO 55001:2014 8.2 Management of change

Before 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 ...

Evidence an auditor accepts: Change management procedure covering assets, processes, organization and suppliers; Change risk assessments prior to implementation; Post-implementation reviews of unintended consequences
ISO 55001:2014 10.3 Continual improvement

The organization keeps making both its asset management and its system for it more suitable, more adequate and more effective.

Evidence an auditor accepts: Improvement register with sources (audits, reviews, performance analysis, incidents); Evidence of improvements implemented and their measured effect; Trend of performance measures over time
ISO 45001:2018 8.1.3 Management of change

The 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...

Evidence an auditor accepts: Management of change procedure covering all listed change types; Change risk assessments before implementation; Records of unintended changes reviewed and mitigated

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Thermographic survey · Transformer inspection