Maintenance

The maintenance aims at maintaining an installation in the best possible state of functioning.

There are essentially four types of maintenance:

• The curative maintenance: we wait to perceive  a problem to intervene: that breaks. We repair.
• The predictive maintenance: by means of elaborate ways of measure, we analyze the values of significant parameters of the functioning of a mechanical, electric, hydraulic installation, or other and we estimate the deadline to affect a threshold of intervention in technical safety zone. She allows to perceive, well before that shows itself the slightest perceptible sign physiologically, an anomaly or a drift of preliminary value in the degradation of a mobile part.
• The systematic maintenance: the predictive maintenance which can not apply to all the organs or being too expensive, she must be doubled by a systematic maintenance. This periodicity must be recorded in a document of schedule of maintenance doubled by an exercise book of exploitation  which records all the made operations, and allows, by its analysis, to update the schedule of maintenance:
• Maintenance systematic of the pressure pipes.
• Systematic maintenance of the electrical equipment. Buildings (classic interview with a permanent concern of the environmental protection: noise, flights , waste, electric safety.)
• Systematic maintenance of the other entities:
• Systematic maintenance of turbines.
• Systematic maintenance of intakes of water.

This one requires a definition of the periodicities of every operation, according to data builder (sometimes debatable), the analysis of the previous behavior of the installation and  » the rules of the art  » which are promulgated by a large-scale observation of the behavior of a type  of installation.

The maintenance  » évolutionnelle « : by legal, statutory or administrative obligation in particular during the renewal of the title of exploitation.