Modernization Of Transformer Substations - "Turnkey" Work, Preparation Of Technical-Economic Documentation Pth+Cs+Dtac+Dde Phase, Supply Of Products (Excluding Meters, Which Will Be Made Available By Delgaz Grid) And Execution Of Works Necessary To Achieve The Project'S Objectives, Preparation Of As Built Documentation - Project Of Common Interest For The Modernization Of The Electricity Network - Carmen