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Seatronics, Inc. <br /> STANDBY BATTERY CALCULATION <br /> for FACP <br /> Note: Calculation based on 48 hour standby time. <br /> PROJECT#: 9132326 DATE: 3/25/24 <br /> PROJECT: Boeing 45-715 <br /> POWER SUPPLY Fire Alarm Panel - FACP, Siemens <br /> IDENTIFICATION: FC901, with 170W Pwr. Supply <br /> PWR. SUPPLY SIZE: VOLTS: 24 MAX.AMPS: 6 <br /> STANDBY TIME ALARM <br /> REQUIRED: SUPV. HRS.: 48 MINUTES: 10 <br /> NOTES: <br /> DEVICE/ QTY. SUPV. TOTAL ALARM TOTAL <br /> MODULE (mA) SUPV. (mA) (mA) ALARM(mA) <br /> FAP Modules: <br /> MAIN BOARD 1 159 159 186 186 <br /> TELGUARD PWR 1 42 42 110 110 <br /> 0 0 0 0 0 <br /> 0 0 0 0 0 <br /> 0 0 0 0 0 <br /> 0 0 0 0 0 <br /> Field Devices: <br /> MANUAL STATIONS 3 1.1 3.3 1.1 3.3 <br /> SMOKE DETECTORS 3 1.1 3.3 1.1 3.3 <br /> INTERFACE MODULES (IFD) 1 1.1 1.1 1.1 1.1 <br /> HEAT DETECTORS 1 1.1 1.1 1.1 1.1 <br /> NAC 1 1 0 0 154 154 <br /> NAC 2 1 0 0 424 424 <br /> TOTAL TOTAL <br /> SUPV.(mA) 209.8 ALARM(mA) 882.8 <br /> CALCULATION: <br /> SUPERVISION CURRENT 209.8 mA X 48 HRS = 10070 mA HRS <br /> ALARM CURRENT 882.8 mA X 0.167 HRS = 147 mA HRS <br /> (5 minutes =.083 hrs.) <br /> (10 minutes =.167 hrs.) TOTAL = 10218 mA HRS <br /> SAFETY FACTOR 1.2 X 10218 mA HRS = 12261 mA HRS <br /> AMP HOUR REQUIRED = 12.3 AH <br /> AMP HOUR SELECTED = 18 AH Powersonic PS-1218 <br /> Note: Panel requires minimum battery size of 7AH <br />