Z1DA--556-24-113 Oil Transformer and Switch Enclosure Upgrades

This solicitation calls for a prime contractor to replace medium‑voltage oil‑filled transformers, upgrade switchgear, construct new concrete pads, and install anti‑ram bollards across multiple buildings on the Captain James A. Lovell VA Health Care Center campus in North Chicago, Illinois. The work includes relocating one transformer, providing temporary power, and complying with infection‑control and safety requirements. The schedule is phased over an estimated 357 calendar days, with a detailed milestone‑based timeline and a “Notice to Proceed” as Day 0. The contractor must supply all labor, materials, tools, quality‑assurance, and supervision, and must coordinate closely with VA engineering staff through an RFI process. • Replace six medium‑voltage oil‑filled transformers (150 kVA × 4, 300 kVA × 2, 750 kVA × 1) serving Buildings 1, 3, 9, 11, 66, 137, and 187. • Relocate the 150 kVA transformer at Building 3 and provide a new concrete pad. • Replace electrical distribution switchboards at Buildings 3 and 137. • Construct new concrete pads for transformers at Buildings 9, 66, 187 and the new pad at Building 3, including frost‑mitigating piers. • Install anti‑ram bollards at all transformer locations. • Perform necessary MV cable re‑termination, grounding, and conduit work. • Provide temporary power as needed, adhere to ICRA Level II infection‑control standards, and observe strict outage windows for occupied buildings. • Follow a 357‑day milestone schedule, with mobilization, procurement, construction, and close‑out phases clearly defined.