Maintenance is defined as the compilation of tasks carry out in an installation, in order to avoid, analyse and outweigh the degradation of time or usage that they provoke in the equipment and systems which form that installation.

Both the mere passage of time and the usage of equipment, systems and installations generate different mechanisms of degradation on them. The most important and common forms degradation are the following: 

  • Corrosion
  • Abrasion
  • Erosion
  • Deterioration
  • Material loss
  • Out layer paint loss
  • Fatigue
  • Thermal creep
  • Deformation
  • Stretching or elongation
  • Mechanical loosening
  • Seize up
  • Cavitation
  • Excessive friction
  • Obstruction or blockage
  • Inlay
  • Deposition of solids
  • Pollution
  • External contamination
  • A cut
  • Strike with external object
  • Internal impact
  • Crushing
  • Cable cut or break
  • Loosening of electrical connection
  • Dirt in electrical contact
  • Electromagnetic interference 

The maintenance department of an installation has as main objective to avoid, analyse and/or outweigh that degradation, maintaining total or partially the benefits that the equipment, systems and installations had initially, and that they lose progressively or suddenly with the usage and/or pass of time. 


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