31/26, Procurement Of Servants For The Needs Of Hpp "Perućica", By Lots As Follows: Lot 1: Overhaul Of Dilatation Joints And Inspection Openings On Supply Pipelines Of Hpp "Perućica" Lot 2: Inspection Of Turbine Equipment And Elimination Of Observed Defects In 2026 And 2027 Lot 3: Testing Of Equipment Provided By Law From The Point Of View Of Operational Safety