Civil, Electrical and Mechanical Upgrade Designs, Orange County Sanitation District

ProjectLine provided electrical designs for replacement of five corroded 11KV pullboxes that form part of the medium voltage distribution system at Plant 2 located in Huntington Beach. The new boxes were designed to meet code and to be installed without disturbing the existing cables. The 11KV cables were tested by the Contractor both before and after box installation to ensure cable integrity was maintained. Another upgrade design task replaced existing secondary busways for ten substation transformers at Plant 1, located in Fountain Valley. Redesigned interfaces to the transformers and switchgear were needed for the new cableways. Safety and construction sequencing to avoid impacting process operations were important considerations in design of upgrades. ProjectLine also provided mechanical design for replacement of existing HVAC equipment at the end of its useful life, ADA upgrade designs for OCSD’s Plant 1 campus, preliminary engineering for expansion of the Purchasing Building at Plant 1, and civil/structural design for improvements to the Control Center at Plant 2.