Glossary of Terms
Practical maintenance terms, CMMS language, reliability abbreviations, and plant maintenance definitions in one place.
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399 terms shown
Decommissioning
Decommissioning is the controlled removal of equipment from active service, including isolation, data closure, material handling, and disposal or preservation decisions.
Defect Elimination
Defect elimination is the structured removal of recurring equipment defects and the conditions that create them.
Defect Register
A defect register is a controlled list of identified equipment defects, risks, status, ownership, and required corrective actions.
Deferred Maintenance
Deferred maintenance is approved maintenance work that is deliberately postponed to a later date because of risk, access, production, labor, parts, or budget considerations.
Degradation Mechanism
A degradation mechanism is the physical, chemical, electrical, thermal, or mechanical process that progressively reduces equipment condition or performance.
Document Control
Document control is the process used to approve, issue, revise, distribute, review, and withdraw procedures, instructions, drawings, and other controlled information.
Downtime Cost
Downtime cost is the estimated financial impact created when equipment or production capacity is unavailable.
Dynamic Balancing
Dynamic balancing is the correction of rotating mass distribution so vibration caused by imbalance is reduced during operation.
Economic Order Quantity
Economic Order Quantity is a calculation used to estimate an order quantity that balances ordering cost and inventory holding cost.
Eddy Current Testing
Eddy current testing uses electromagnetic induction to detect surface and near-surface defects or material changes in conductive materials.
Electrical Isolation
Electrical isolation is the controlled disconnection and securing of electrical energy so equipment cannot become energized during work.
Electronic Signature
An electronic signature is a controlled digital indication that an identified person approved, reviewed, verified, or completed a record.
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