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Grommets and abrasion protection are used to protect <br />cable insulation where cables pass between chassis and <br />enclosures as noted in the product listing. <br />Over Voltage Protection The battery charging system includes over voltage <br />protection in the form BMS controls/built in surge <br />protection tested in UL/IEC 62368 OVC Class II,which <br />limit the voltage input to the rectifier and battery charging <br />system.The rectifier which charges the battery is listed to <br />UL/IEC 62368 and is compatible with the battery <br />chemistry.Battery charge voltage is controlled by the BMS <br />to maintain battery charge voltage in its normal operating <br />range as tested in UL 1973. <br />Crush and Penetration <br />Protection <br />The Ericsson Energy Storage System 6160 is located on <br />rooftop communications sites with restricted access. <br />Unauthorized personnel are restricted by either locked <br />doors or fences from accessing the exterior of the Ericsson <br />Energy Storage System 6160 including the Ericsson <br />Enclosure B160 battery cabinet.The cabinet structure <br />itself is well sealed and provides sufficient crush and <br />penetration protection as tested in GR-487.Though not <br />expected in rooftop installations,when installed in areas <br />that could be approached by vehicles,bollard protection is <br />required in accordance with applicable codes. <br />Cell Thermal Abuse <br />Tolerance <br />The Battery 6618 Module cell has been tested and listed to <br />UL 1973 in which thermal abuse tolerance was tested.Cell <br />and module have been evaluated to UL 9540A and shown <br />to not experience cascading thermal runaway outside of a <br />single module. <br />Water Intrusion Protection The Ericsson Energy Storage System 6160 including the <br />Ericsson Enclosure B160 cabinet are well sealed.The <br />cabinets utilize gaskets around the access doors.They <br />have been tested to meet GR-487 rain intrusion and wind- <br />driven rain requirements which allow negligible water <br />intrusion during events of 75 MPH wind driven rain.The <br />cabinets are inspected for water intrusion when serviced. <br />The B160 cabinet and telecommunications cellular sites <br />are normally located outside of or above known flood <br />zones. <br />Battery 6618 has been tested in submerged state by <br />supplier and Ericsson in both fresh and salt water and no <br />Confidentiality Class External Confidentiality Label Document Type Page <br />Ericsson Internal Analysis 15 (27) <br />Prepared By (Subject Responsible)Approved By (Document Responsible)Checked <br />ERATLEN Thomas Lennholm <br />Document Number Revision Date Reference <br />1785-BFM 107 220/1 Uen PA2 2025-06-03