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Statement of Work (SOW) / Performance Work Statement (PWS) Project Title: South LAMS Electrical Power Supply Installation – Air Base 71, Câmpia Turzii, Romania 1.0 Purpose and Background The purpose of this project is to design, install, test, and commission a permanent electrical power supply system for the South LAMS (Large Aircraft Maintenance Shelter) at Air Base 71, Câmpia Turzii, Romania. The new system will replace temporary generator‑based power and provide a stable, utility‑fed 120 kW supply to support aircraft maintenance operations. The project includes trenching, conduit installation, underground cable routing, panel modifications, grounding and lightning protection upgrades, and full civil restoration. The installation is classified as Importance Category “C” under Romanian construction regulations, indicating a standard‑importance infrastructure system requiring compliance with national norms, safety standards, and quality assurance procedures. 2.0 Scope of Work The contractor shall furnish all labor, materials, equipment, and supervision necessary to deliver a fully functional electrical power supply system. Work includes: Installation of a 315 A switch (disconnector) in the existing electrical panel. Excavation of a 156‑meter trench, 80–90 cm deep , along the designated route. Placement of sand bedding and installation of Ø110 mm protective conduit . Installation of underground copper power cables sized for a 120 kW load . Installation of a new external electrical panel with a 250 A switch and revenue metering. Construction of a grounding electrode system using OL‑Zn electrodes and galvanized flat bar. Lightning protection and low‑voltage electrical installations. Civil engineering works and full site restoration. 3.0 Requirements 3.1 Electrical Power Supply Installed electrical power: 120 kW Maximum absorbed power: 110–120 kW/kVA Power factor: 0.92 Utilization voltage: 230/400 V, 50 Hz 3.2 Trenching & Conduit Installation Excavate a trench 156 meters in length , with a finished depth of 80–90 cm , ensuring compliance with IEC 60364‑5‑52 and Romanian underground cable installation norms. Provide a 10 cm sand bedding layer at the trench bottom prior to conduit placement. Provide HDPE or PVC conduits, minimum Ø110 mm , suitable for underground electrical installation. All phase conductors (L1, L2, L3) and neutral (N) shall be installed together within the same conduit or in grouped conduits arranged to maintain close physical proximity, in accordance with IEC 60364-5-52, to prevent inductive heating and impedance imbalance. Provide two (2) additional Ø110 mm HDPE or PVC conduits along the full trench length for future expansion. Spare conduits shall be installed parallel to the primary conduit with proper spacing and shall be fully usable (no crushed, blocked, or discontinuous sections). Maintain required horizontal and vertical separation from existing utilities; contractor is responsible for utilit…
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