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Energy Storage Systems at Cell Sites Page 2 of 4 Version: 1.1 <br />T-Mobile Internal Revision Date: 06/2025 <br />Required Documents <br />Installation/construction and commissioning plans <br /> Operation and maintenance plans <br />Fire permits/operational permits <br /> - <br />tential faults. <br /> <br />o <br />o <br />Additional ESS Requirements Based on Location <br />Rooftops Locations <br />nderlayment that runs under the battery cabinet and within 5 feet horizontally shall be <br />one of the following: <br />o -/rubber membrane on top <br />o <br />o T-Mobile installed underlayment: <br /> Steel plate 22 gauge or better <br /> Concrete slab or blocks with seams sealed > 1.5 inches thick <br /> Fiber cement board 0.25” thick or better <br /> . <br /> Must be located a minimum of 5 feet from the roof edge and at least 10 feet away from the roof <br />access point. <br /> Must have at least a 5-foot- <br /> <br /> Fire Suppression - <br /> Fire Detection - Automatic smoke or radiant-energy sensing monitoring to a centralized station. <br />Open Parking Garages (has two or more openings to the outside) <br /> ESS shall be at lest 5 feet from fencing. <br />Covered garage attached to a building - ESS shall not be located within 25 feet of egress pathway <br />from the building. <br /> Fire Suppression - <br /> Fire Detection - Automatic smoke or radiant-energy sensing monitoring to a centralized station. <br />Inside Building or Shelter <br /> A 2-- <br />9540A. <br /> Fire Suppression - sprinkler <br /> Fire Detection - Automatic smoke detection or radiant energy sensing monitoring to a centralized <br />station. <br />Variance Request <br /> The can be used to <br />