Ensuring continuity of electricity supply – installation of a backup power connection at the Żagań District Office in Szprotawa

Summary

The tender concerns the construction of a backup power connection to keep the Żagań District Office branch at 30 Kościuszki Street in Szprotawa operating if the electricity supply is interrupted. The work includes preparations and notifications for connection to the existing power network, removal of interfering equipment and installations, and construction of the connection and cable routes. At least 50 m of cable route must be prepared outside the building, ending in a protected 125 A power socket compatible with the existing generator; the socket cable must have a cross-section of at least 10 mm². The contractor must also provide a connection cable at least 5 m long, with a cross-section of at least 6 mm² and 125 A plugs, install at least 80 support brackets, and make at least 7 technical openings for cable routes. The specified cable is YKY 5×10, 0.6/1 kV. The work also includes sealing cable penetrations and chases, restoring wall surfaces, installing at least two information signs, and removing waste. After the construction work, the contractor must prepare documentation for the emergency power connection, provide installation test and measurement reports, and give the contracting authority's staff basic training in operating the connection and the equipment offered. The work must be completed by 10 December 2026. The bidder must have completed at least one comparable power-connection construction project under a single contract within the last five years and provide at least one worker holding a Group G1 electrical qualification certificate. Physical workers performing construction work must be employed under employment contracts. The bid must state a lump-sum price; the award criteria are price (60%) and warranty period (40%).