10 CFR 50.71(e) - Maritime Administration - U.S. Department of ...

Table 8-3Updated Final Safety Analysis Report - (STS-004-002)480-Volt Power PanelsPower panelB-102-1A-176-4Main SwitchboardEmergency SwitchboardSecondary Power Panel “A”Secondary Power Panel “B”ServiceLighting load center, fwdLighting load center, aftMain Switchboard, 120 VAC sectionEmergency Switchboard, 120 VAC sectionDeck Machinery, 480 VAC Forward Power PanelPower panel A-190, Aft Shore Power Connection, 480 VACAft Power Panel480 VAC Forward Power Capstans, Salamander Heater and Gangway WinchAft Power PanelBathroom Trailer8.5.2.7. 450-Volt Power Panels (Original)Originally, 37 power panels were located throughout the ship to furnish 450-volt, a-c power forloads such as deck machinery, ventilation and lighting. Generally, the power panels weresurface-mounted circuit breaker cabinets fed from main switchboard bus sections 1 or 2.The original 450-volt power panels are listed in Table 8-4, which indicates service, powersource, and transfer method. Prior to the shore power switch board modification in 2010, thesepower panels were protected either by Tri-Pac, molded-case circuit breakers mounted on themain and emergency switchboards or by molded-case circuit breakers in other 450-volt powerpanels. Various loads taken from these panels were controlled manually by molded-casebreakers or by motor controllers.Table 8-4 450-Volt Power PanelsPower panel Service Power source TransferC-126-1 Stores elevator Bus 2BO-134-2 Deck machinery Bus 1B-123-1 Hotel stbd Bus 1C-144-2 Mach. space vent. Bus 2, bus 1 Man.P-165-1 Quarters vent, aft B-148-1A-106-2 Quarters vent, fwd B-148-1A-188-1 Cargo vent, aft Bus 1B-148-1 Quarters ventilation Bus 1, bus 2 Man.A-80-2 Cargo vent, fwd Bus 1C-102-2 Laundry B-136-2Rev. VI 84