Item 17 - Arc Flash Analysis and Safety Program Development

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UNDERSTANDING SCOPE OF SERVICES P2S INC. CITY OF SANTA ANA PUBLIC WORKS ARC FLASH ANALYSIS & ELECTRICAL SAFETY PROGRAM UNDERSTANDING SCOPE OF SERVICES The following will be our methodology and approach in executing the proposed Arc Flash Analysis project: GATHERING INFORMATION S PROVIDING RECOMMENDATIONS P2S team will review available record drawings, single line diagrams related to existing site and building systems that are provided as part of the RFQ to determine the project's existing conditions pertaining to the scope of work. A detailed site investigation will then be performed with Hampton Tedder Electrician and Santa Ana Public Works staff to verify all existing site conditions, circuit breaker settings, fuse ratings and check for inconsistencies with code requirements and the aging of any equipment prior to commencing any assessment. All project scope associated equipment like panelboards, switchboards, motor control centers, associated equipment will be surveyed and feeder lengths will be estimated based on engineering judgment and field verification. P2S will coordinate shut down requirement and possibilities with the City staff and utility before the site survey. MODELING AND ANALYSIS P2S team will gather all the information surveyed from the site visit and prepare single line diagrams in ETAP and AutoCAD showing all the information requested in the RFQ. The modeling process can be done simultaneously while the site visits are conducted to expedite the process. P2S will also coordinate with the City to obtain utility contribution information for each site. We understand that obtaining this information may take longer and P2S will work closely with the City account representative and staff to expedite the process. Once the electrical calculation model is completed and finalized, P2S will perform Short Circuit/Coordination and Arc Flash study of all investigated electrical equipment using the created model. This will include preparing time current curves, performing selective coordination for all electrical equipment, calculating incident energy and arc flash boundaries. Based on the short circuit study, P2S will provide a report showing the existing interrupting ratings of all the equipment and provide recommendations for any upgrades required to the system. Based on the coordination study, P2S will provide a report showing the time current curves for all the electrical equipment and provide recommendations for any settings that will need to be changed to achieve desired coordination between overcurrent protective devices in the system. Based on the arc flash study, P2S will provide a report showing the incident energy levels, arc flash boundaries, approach distance, and the required PPE to operate the equipment. 3"x6" Vinyl Arc Flash labels will be provided per IEEE 1584-2018. Labels will contain all information required by Code and RFQ. P2S will prepare as -built ETAP and AutoCAD single line diagrams and provide a copy to the City staff for future use. An NFPA 70E training to maintenance, facilities and other affected staff will be provided on how to interpret the Arc Flash labels. A custom safety program compliant with the current NFPA 70E code will be provided. P2S recognizes that each client and each project have their specific requirements. As such, we will work closely with the City staff to understand the issues before developing workable and cost-effective solutions. Recommended approaches and solutions will be discussed with the staff throughout the study and design phases. P2S will participate in the City staff's meetings and provide updates of the project. 11