TM 55-1930-209-14&P-9-1 Table 3-1.  Major Components of Emergency Electrical System Component Location Function 24 Vdc battery charger Workshop Keeps battery bank charged DC-AC standby inverter Workshop Converts 24 Vdc from batteries to 115 Vac for emergency lighting panel Battery bank Deckhouse Provides 24 Vdc to DC power panel and to top forward input side of inverter 24 Vdc power panel Workshop Provides 24 Vdc power for Army radio and telephone system, foghorn, bilge alarm module, emergency shutdown system, and navigation and status lights 120 Vac emergency lighting panel ROWPU space Provides power to emergency lights in forward bulkhead deckhouse and voids, marine radio and telephone buzzer system 3-5. Equipment specifications a. Battery charger Manufacturer LaMarche Manufacturing Co. CAGEC 92731 Part no. A33-60-24 V AC input 120 V, single ph, 60 Hz DC output 24 V, 60 amps Quantity 1 b. DC to AC inverter Manufacturer LaMarche Manufacturing Co. CAGEC 92731 Part no. A51-1 .5K-24 V Type Manual DC input 24 Vdc, 12.5 amps AC output 115 Vac, 12.5 amps Transfer relay 2 to 10 KVA 40 msec Quantity 1 c. Battery CAGEC 74309 Part no. NS305 Type Marine Nominal voltage 6 V Rate 2 capacity 305 amp/hrs Quantity 4 d. 24 Vdc power panel CAGEC 81349 Part no. W3928/2-04-DP Military specification MIL-P-23928/2 Class 1 Rating 50 A, 120 Vac Branches 8 Quantity 1 3-3