Terminal 86 Infrastructure Upgrade Projects

Terminal 86, with its multiple storage silos, conveyors, sorters, elevators and booms, is able to load a modern grain ship in three days and handles five million metric tons of grain a year. Terminal operator Louis Dreyfus Commodities hired Säzän Group to provide local support for site-wide electrical and mechanical upgrades, including:

• Arc Flash Study: The large number of motors (200+ motors up to 450hp, operating at 120V, 480V and 4160V) presented a challenge protecting against electrical hazards. Säzän performed an arc flash study that included a comprehensive engineering field survey of the electrical equipment that contributes to arc flash hazard and modeled the system in SKM Power Tools for MS Windows. Full reports were generated of short-circuit current availability, existing protective device coordination, and arc flash hazard, in accordance with the NEC, NFPA 70E, and IEEE 1584. Distinctive labels were designed and printed for each location with the identified specific hazards.
• Emergency Generator: Säzän provided engineering, design, and construction support for installing the first on-site generator and generator-backed electrical distribution system for the grain facility. The 200kW generator provides backup power in the event of a utility outage for egress lighting, fire protection, other life safety systems, Homeland Security functions, and business continuity.
• Electrical Equipment Replacement Program: Engineering support for planning and design to replace the major electrical distribution equipment at end of service life. New distribution equipment was added, to which existing motors and other loads were transferred. As original switchboards and motor control centers were off-loaded, they were replaced, a phased approach supporting business continuity throughout the entire replacement sequence.
• Dust Collector Replacement Program: Provided programming, engineering support, and permitting support for replacing the terminal’s dust collection systems. Included laser scanning of existing buildings and equipment to produce 3D Revit/BIM model of existing equipment from point-cloud data. Scope also included design of custom collector configuration and support system by vendor and structural engineer to allow ease of maintenance and phased installation of the replacement collector. Developed explosion safety performance design specifications and NFPA 654 code compliance for permitting and review by FM Global insurance carrier.
• Utility Transformer Pad: Engineering support for reviewing incoming conductor shielding design, developing grounding requirements for new fencing, reviewing construction drawings, and coordinating with structural engineers on clearance requirements.