Transformer Testing and Enclosure Integrity Certification

This subcontract for the City of Redding involves providing specialized transformer testing and enclosure integrity certification for prime contractors on utility projects. The scope of work includes performing routine and submersible-specific tests, such as resistance, ratio, polarity, and dielectric testing according to IEEE Std C57.12.90-2021, as well as production leak and submersion tests per IEEE Std C57.12.32-2019. The selected provider will utilize high-voltage testing equipment and submersion pressure tanks to ensure compliance, delivering certified test reports and PCB content statements for every unit. This opportunity falls under NAICS code 541380 and is based in Redding, California, with a response deadline of September 23, 2026.