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  5. ›Requirements Contract for Medium Voltage Transformer Oil…

City of Fresno·California

Requirements Contract for Medium Voltage Transformer Oil Sample Testing & Analysis

Closes 5/19/2026$150k – $500kRequest for Proposal
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Description

The City of Fresno is seeking a qualified contractor to provide laboratory‑type testing and analysis of medium‑voltage transformer oil samples (150 kVA – 10 000 kVA) on an annual basis. The work includes standard‑based chemical and physical property testing as well as dissolved‑gas analysis (DGA) per IEC/IEEE standards, and the delivery of both electronic and hard‑copy reports. The contractor must supply all required equipment, coordinate with city plant staff for safe site access, and adhere to strict reporting timelines. • Perform oil property tests (color, water content, dielectric strength, acidity, interfacial tension, PCBs, etc.) on mineral, natural‑ester, synthetic‑ester, and silicone oils. • Conduct DGA following IEC 60599 and IEEE C57‑ series specifications. • Provide daily progress updates and final test reports within 30 days of job completion; reports delivered to the Wastewater Management Division Electrical Supervisor. • Supply all field equipment, lighting, and portable power; coordinate breaker switching, lock‑out/tag‑out, and site safety with city personnel. • Maintain compliance with insurance, indemnification, and City procurement policies; optional contract extensions for up to two additional one‑year periods.

Attached files

The solicitation documents live at the source — open the bid source above to download them.

Contact

Sean Miranda(Procurement Specialist)

[email protected]

(559) 621-1151

Key dates

Opened
4/28/2026
Pre-bid meeting
5/7/2026
Closes
5/19/2026
Duration
3 years

Last updated

Details

Type
Request for Proposal
Industry
Engineering Services
NAICS
541380
Solicitation №
12600682

Budget estimate

$150,000 – $500,000

No contract value is disclosed, but the scope (annual testing of dozens of transformers across a large municipal utility) suggests a multi‑year contract worth several hundred thousand dollars. Assuming 100–200 oil samples per year at $1,000–$2,500 per sample (including DGA), the annual spend could range from $150,000 to $350,000, leading to a total 3‑year value of roughly $450,000–$1,050,000. Therefore a reasonable estimate for the contractor’s earnings is between $150,000 and $500,000 over the base period.

AI estimate from the solicitation

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