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 TM 55-1905-223-SDC
Section IV. EMERGENCY ELECTRICAL POWER
9-4. SUPPLY. Emergency power is supplied by a Cummins 4BT 5.9GC Marine Generator Set. The
emergency generator is rated at 240 Vac, 40 kW, and supplies only the vital equipment which is fed by the
emergency switchboard. FIGURE 9-2 shows emergency power distribution.
Section V. EMERGENCY POWER OPERATION
9-5. EMERGENCY POWER. In the even to floss of normal power, the Emergency Generator will
automatically start and energize the emergency switchboard within 45 seconds by use of ABT (Automatic Bus
Transfer) equipment. The following is a list of vital equipment that is fed through the emergency switchboard
and will remain in operation even after normal power is lost.
EQUIPMENT
POWERED FROM
Generator Jacket Water Heater
Emergency Switchboard
Fuel Oil Transfer Pump
Emergency Switchboard
Starboard Steering Gear
Emergency Switchboard
MSR 6212 Power Supply
Emergency Switchboard
Radar Distribution Power Panel
Emergency Switchboard
Wheelhouse Lighting Panel
Emergency Switchboard
Wheelhouse IC/ELEX Panel
Emergency Switchboard
Emergency Lighting Below Main Deck
Emergency Switchboard
AN/URC-80 Radio Battery
Emergency Switchboard
Bow Thruster Battery Charger
Emergency Switchboard
SSDG 1 Battery Charger
Emergency Switchboard
Emergency Generator Battery Charger
Emergency Switchboard
Emergency Switchboard Battery Charger
Emergency Switchboard
AN/URC-46 Radio
Emergency Switchboard
Batteries
Bow Thruster Steering Pump
Emergency Switchboard
Batteries
Fire Detection System
Emergency Switchboard
Batteries
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