A. Arc Flash/Coordination Data Collection 1. Contractor shall provide for an onsite Arc Flash/Coordination Data Collection to verify the installed equipment parameters, sizes, and ratings, and protective device ratings. 2. Unless specified otherwise, the scope of the Data Collection shall include all installed distribution equipment in the Areas listed in subpart 3 below, as well as all directly connected, downstream distribution equipment. The Data shall include all portions of the specified electrical distribution system from the electric utility power source(s) and emergency power source(s) down to and including each switchboard, distribution panel, transfer switch (automatic or manual), motor control center, variable frequency drive, distribution panelboard, branch circuit panel board, busway, enclosed circuit breaker and fused disconnect switch. 3. The following list specifies the equipment Areas for the Arc Flash/Coordination Data Collection: a. Switchyard 1 b. Switchyard 2 c. Powerhouse 1 d. Powerhouse 2 4. The following equipment areas are not to be included in the Data Collection: a. Upriver office and maintenance buildings b. Well Electric pump station c. Upriver Spillway B. Protective Device Coordination Analysis 1. The Contractor shall provide a Protective Device Coordination analysis to determine and coordinate the selective tripping of protective devices for the installed equipment. 2. Unless specified otherwise, the scope of the analysis shall include all installed equipment listed in these Specifications, as well as all directly connected, existing distribution equipment. The study shall include all portions of the existing electrical distribution system from the electric utility power source(s) and emergency power source(s) down to and including the smallest adjustable trip circuit breaker and fused disconnect switch in the system. C. Arc Flash Hazard Analysis 1. The Contractor shall provide an Arc Flash Hazard Analysis to determine potential arcflash incident energies, arc flash boundaries, shock hazard boundaries, and required personal protective equipment (PPE) for all energized electrical equipment. 2. Unless specified otherwise, the study shall include all electrical circuits from the electric utility power source(s) and emergency power source(s) to and including all electrical equipment and panel boards rated 208 V and greater. 3. The Contractor performing the analysis shall coordinate with City Staff, the Utility Provider (AVISTA), and any electrical equipment manufacturers necessary to assist in completing this project. 4. The Contractor shall provide for the printing and installation of Arc Flash warning labels per the results of the analysis. D. Field Verification 1. The Contractor shall bear the responsibility of any independent testing consultant or firm necessary to field verify that all protective devices are set in accordance with the accepted coordination analysis recommendations. In addition, the Contractor shall verify that all arc flash and stock hazard labels have been installed.
