In accordance with Order No 96/2017 of the National Energy Agency approving the Rules governing the conduct and organisation of maintenance activities and Law No 123/2012 on electricity and natural gas, major maintenance works for the overhead power line (OHL) are required in order to ensure the operation of the National Power System (NES) and the OHL, respectively, under conditions of maximum safety and stability. The permanent analysis of the technical status of the 400 kV Iernut-Sibiu South LEA has created the premises for the production of technical documentation, the related works being necessary to ensure, restore and maintain the LEA at the nominal operating parameters and in safety conditions. The works will be carried out on the 400 kV Iernut - Sibiu Sud overhead power line. The route of the line crosses the counties of Mures, Alba and Sibiu, as follows: Mures County - between pillars no. 1 (Iernut station) and 65 on the territorial administrative units of the localities: Cuci, Iernut, Bichiș, Adămuș, on a length of 23.9 km; Alba County - between pillars no. 66 and 97 on the territorial administrative units of the localities: Balta Fortress, Jidvei, Valea Lungă, on a length of 15.3 km; - Sibiu County - between pillars no. 98 and 198 (Sibiu Sud station) on the territorial administrative units of the localities: Micăsasa, Şeica Mică, Şeica Mare, Slimnic, Şura Mare, Sibiu, Şelimbăr, on a length of 42.9 km; The route of the LEA 400 kV Iernut - Sibiu Sud line has a length of 82.1 km. Works required to be carried out in accordance with the P.T. drawn up by the designer S.C. ROMPROIECT ELECTRO S.R.L. - Cluj - Napoca: - Works on poles: • Work on the constructive structure of the LEA pillars is needed to strengthen the LEA pillars. New laminates will be mounted to the pillars that have deformed or damaged metal profiles in order not to change the resistance structure of the pillars; • The corrosion protection layer of all LEA 400 kV Iernut - Sibiu Sud pillars will be restored. Corrosion protection of the pillars will be carried out according to TEL 07.21. • pillars crossing roads of national interest, railways and watercourses longer than 100 km shall be painted for daylight beacon in red and white; The restoration works of the corrosion protection layer at the top of the poles will be carried out with live LEA, in LST technology. • New security and identification nameplates will be installed on all LEA poles; • New aerial numbering plates (from 5 to 5 pillars) will be fitted. Aerial number plates will be mounted with live LEA, in LST technology; • The cassettes of the PAS pillars that have damaged drainage will be cleaned and re-betaned with a high-dose, weatherproof cement mortar (hydrophobicization); • The PAS pillar anchorage system will be reinforced / straightened anchor rods, the completion or replacement of inappropriate elements, the restoration of the anti-corrosion protection system; • The PAS pillars will be verticalized, the tension in the anchors will be measured and retensioned to the initial load, where applicable; • Replace the anchorage system (grinders, foundation sole, tyrant hook) on the PAS 400 pillars (if applicable); • Climbing ladders will be mounted on the poles at the terminals where they are missing, except for the PAS 400 poles. Mounting the staircases will be done with live LEA, in LST technology; Number of days until which clarifications can be requested before the closing date for submission of tenders: 22. The contracting entity shall respond in a clear and complete manner to all requests for clarification/supplementary information as follows: - on the 11th calendar day before the closing date for the submission of tenders. The contracting entity will respond only to requests for clarifications sent by economic operators by the deadline set, in accordance with Article 29(3) of Government Decision No 394/2016.
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