PYV, in an effort to adapt to the specific needs of each client, offers four modes of Maintenance Contract: corrective, preventive, functional and predictive

CORRECTIVE: Consists repair those defects that have occurred or are known to have occurred.
PREVENTIVE : It consists in performing supervisory rounds or replacement at fixed periods.
FUNCTIONAL : It consists in finding no obvious flaws, faults typically affect Protection systems and periodic verification that they work.

PREDICTIVE : It consists in analyzing operating parameters whose evolution can detect a failure before it has more serious consequences.