TM 55-1930-209-14&P-9-1Figure 3-5. Battery Bank3-13 . Emergency operating procedures. When normal power fails, 120 Vac power being supplied through circuit breaker1 OP13 to the inverter is cut off. The inverter draws power from the battery bank, converts it o 120 Vac, and supplies it tothe emergency power panel.a. Check circuit breakers 10P13A-1 thru 10P13A6 on 120 V emergency lighting panel on ROWPU spaceforward bulkhead. Open (OFF) any of them not required for emergency lighting. These circuit breakersnormally remain closed so that emergency lights are activated immediately when normal lighting is cut off.Make sure that 10P13A-7 and A8 for telephone system buzzers and VHF marine radio are closed (ON).b. While operating on emergency power, turn off any unnecessary power usage.NOTEWorkshop Items drawing power from 24 Vdc panel are not Immediately affected by changingfrom normal to emergency power. If not turned off, however, they will deplete the limitedsupply of electrical power available from the battery bank.c. While operating on emergency power, check system to make sure It Is operating property. Inverter maybecome warm to touch with the open hand but should not become hot.3-10
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