9b Low Voltage presentation
Item No. 9b supp Meeting Date: June 12, 2018 Main Terminal Low Voltage System Upgrade C800061 1 Main Terminal Low Voltage System Upgrade What is the Main Terminal? Concourse B Concourse C What is Low Voltage? What is being Upgraded? Concourse A Concourse D MTLV System Upgrade 2 High Voltage Distribution System 3 Low Voltage Distribution System Power Centers 4 STIA Main Terminal The Main Terminal and Work Area 5 Passenger Experience Video Passenger Experience 6 Justification for Project Genuine risk to airport/airline operations Aged equipment, risk of failure/fire (water damage), extended outages to repair Loss of power to ticket counters and kiosks, baggage claim, communications, airline offices, elevators/escalators, HVAC. Existing system has limited capacity Negates new equipment/circuits or increased loads Unsafe working conditions risk of injury or death Inability to meter/monitor power usage Risks of Delay 7 Typical Main Terminal Electrical Room 28" FROM PANEL TO RAILING MECHANICAL VALVES IN WORKING SPACE DANGER! ASBESTOS! Safety issues in typical old Main Terminal electrical space. 8 Typical Main Terminal Electrical Room Safety issues in typical old Main Terminal electrical space with worker. 9 Another Electrical Room 6" CLEARANCE 23" CLEARANCE 18" CLEARANCE Working space does not comply with National Electrical Code. 10 Typical Power Panels in Main Terminal Manufacturer no longer in business. All breakers in use. Replacement circuit breakers not available. Unsafe condition. Obsolete electrical panels. 11 Recent Power Outage in the News Aging equipment was scheduled for replacement. "Equipment failed before we could get to it." Failure of Aging Electrical Equipment Results in Power Outage 12 Project Work Electrical Rooms Electrical Panels Conduit Runs 13 Overview Budget Est. Final Construction Costs: $70,546,000 Est. Design Costs: $29,754,000 Est. Program Total: $100,300,000 Estimated Program Total: $100,300,000 14 Scope Item Costs Scope Item 2014 Estimate 2018 Estimate Normal Power $20 Million $61 Million Emergency Power $0 $5 Million Central Power $0 $14 Million Center Branch Metering $0 $7 Million Regulated Materials $0 $13 Million Abatement Scope item cost by line item. 15 Overview Schedule Commission Authorization for Design: Q3 2018 Design Team and GCCM Begin: Q1 2019 Design Complete: Q4 2021 Commission Authorization for Construction: Q3 2021 Construction Start: Q4 2021 Construction Complete: Q1 2025 Construction Complete 2024 16 Questions? 17
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