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7.0 Design Loads - Seismic (Cont.): <br />7.3.1 Seismic Displacement of Unattached Solar Arrays: <br /> <br />Per ASCE 7-16, Section 13.6.12, the use of non-linear response history (NLRH) analysis is <br />permitted to determine the seismic displacement of non-structural components located on <br />the roof. <br /> <br />μ =specific to each array, see table 7.3 <br />Roof Pitch :specific to each array, see table 7.3 <br />lp =1 for all arrays <br />le =1 for all arrays <br /> <br />PanelClaw, Inc. has engaged the services of a 3rd party consulting engineer to perform <br />NLRH analysis on its clawFR product. Utilizing that analysis, and the report contained in <br />the Appendix of this package, we are able to determine the displacement of the arrays <br />during seismic events, for the system design life of 25 years. The distance, called Δ MPV, <br />noted below represents the displacement due to the maximum seismic event with a 700 year <br />MRI. The Δ MPV also incorporates the cumulative displacements, over the arrays design <br />life, of smaller seismic events. As a company policy, PanelClaw, Inc., limits the use of this <br />data to Δ MPV displacement of 48" or less. <br /> <br />ΔMPV distances are derived from App. B, "Executive Summary: clawFR Seismic <br />Displacement Demands of Unattached Arrays." <br /> <br />Using the ΔMPV value above, ASCE 7-16 has adopted the following equations to set the <br />minimum separation between unattached solar arrays and rooftop obstructions. Table 10.1 <br />below lists the required separation per ASCE 7-16. <br /> <br /> <br />REQUIRED ARRAY CLEARANCES PER ASCE 7-16 <br />Condition #Condition Description Minimum Separation Equation <br />1 Between separate solar arrays of similar construction (0.5)(Mpv) <br />2 Between a solar array and a fixed object on the roof or solar array of different construction (Mpv) <br />3 Between a solar array and a roof edge with a qualifying parapet (Mpv) <br />4 Between a solar array and a roof edge without a qualifying parapet (2.0)(Mpv) >= 4 ft <br />NOTE: YOU SHOULD PROVIDE SUFFICIENT SLACK IN ARRAY ELECTRICAL WIRING TO ACCOMMODATE ALL POTENTIAL ARRAY MOVEMENT. <br /> <br />03/20/2024 <br />APPROVED FOR CONSTRUCTION <br />15 <br />PanelClaw, Inc., 1600 Osgood Street, Suite 2023, North Andover, MA 01845 <br />(978) 688.4900 - www.panelclaw.com <br />1851 E Deere Ave - 101118504 & <br />20182282 <br />4/11/2024