The period during which an asset, system or process is unavailable to perform its intended function.
Downtime is the time during which equipment, systems or production facilities are unavailable due to planned maintenance, failures, inspections, shutdowns or other operational interruptions. Downtime may be planned, such as scheduled turnarounds, or unplanned, resulting from equipment failures or unexpected events.
Downtime is a key operational and reliability metric used to evaluate asset performance, maintenance effectiveness, production losses and overall equipment availability.
Downtime is commonly classified as planned or unplanned and is frequently analyzed alongside Availability, MTBF and MTTR to identify improvement opportunities.
Downtime represents the period when an asset is unavailable, whereas Availability measures the proportion of time the asset is capable of performing its intended function.
Reliability Engineering; Maintenance & Work Management; Operations.
Asset performance.; Maintenance planning.; Reliability analysis.; Production reporting.; Operational excellence.
IEC 60050-192; IEC 60300
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