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Seatronics, Inc. <br /> STANDBY BATTERY CALCULATION <br /> for FACP <br /> Note: Calculation based on 48 hour standby time. <br /> PROJECT#: DATE: 5/13/24 <br /> PROJECT: Boeing 40-35 Building Panel <br /> POWER SUPPLY Fire Alarm Panel - FACP, Siemens <br /> IDENTIFICATION: XLS, with 12AMP Pwr. Supply <br /> PWR. SUPPLY SIZE: VOLTS: 24 MAX.AMPS: 12 <br /> STANDBY TIME SUPV. ALARM <br /> REQUIRED: HRS.: 48 MINUTES: 10 <br /> NOTES: <br /> DEVICE/ QTY. SUPV. TOTAL ALARM TOTAL Rev A <br /> MODULE (mA) SUPV. (nnA) (mA) ALARM(mA) Comment <br /> FAP Modules: <br /> PMI Main Board/Display 1 125 125 230 230 <br /> DLC CARD 1 145 145 375 375 <br /> CRC-6 Relay Card 0 51 0 246 0 <br /> ZIC-4A NAC Driver 0 91 0 210 0 <br /> PSC-12 PWR SUP. 1 150 150 150 150 <br /> Field Devices: <br /> MANUAL STATIONS 1 1.5 1.5 1.5 1.5 <br /> SMOKE DETECTORS 1 1 1 1 1 <br /> INTERFACE MODULES (IFD) 9 1 9 1 9 <br /> INTERFACE MODULES NEW 1 1 1 1 1 <br /> NAC#1 0 0 0 0 0 <br /> NAC#2 0 0 0 0 0 <br /> TOTAL TOTAL <br /> SUPV.(mA) 432.5 ALARM(mA) 767.5 <br /> CALCULATION: <br /> SUPERVISION CURRENT 432.5 mA ) 48 HRS = 20760 mA HRS <br /> ALARM CURRENT 767.5 mA ) 0.167 HRS = 128 mA HRS <br /> (5 minutes =.083 hrs.) <br /> (10 minutes =.167 hrs.) TOTAL = 20888 mA HRS <br /> SAFETY FACTOR 1.3 X 20888 mA HRS = 27154 mA HRS <br /> AMP HOUR REQUIRED = 27.2 AH <br /> AMP HOUR SELECTED = 35 AH Powersonic PS-12350 <br />