Table 17. Cable and Connector Requirennents 

 for In-Situ Plants 



Transmitted 



Load 



Conductor 



Connector 



Recommended 



Voltage 



(kw) 



Size 



Available 



Transmission Method 





30 



6AWG 



yes 



optional 



480 



100 



4AWG 



yes 



optional 





300 



4/0 AWG 



no 



two 1/0 AWG cables 



4,160 



1,000 



4AWG 



yes 



requires engineering 



3,000 



300 MCM 



no 



three 1/0 AWG cables 



The hull of the in-situ power plant would serve as a heat transfer area. 

 The internal equipment of the plant includes a typical pressurized water-cooled 

 reactor and shielding as a primary system. The secondary system includes the 

 steam turbine generator system. The turbine steam exhaust would be con- 

 densed and the waste heat removed by contact with the steel pressure hull for 

 loads up to 300 kw. For loads of 1,000 kw and above, standard condensing 

 techniques would require the use of hull penetrations to provide seawater 

 cooling for the condenser. 



Surface Power Systems 



A 3-phase, 60-Hertz, AC electrical system was selected for each of the 

 surface- tendered power plants. A diesel generator was selected as the power- 

 generating equipment for surface-tendered plants. Control and instrumentation 

 signals from the load module would be transmitted by carrier over the power 

 cable. A 24-kw/hr manchex plante battery complete with battery charger 

 was selected for the emergency power source. 



The cable system selected included a three-conductor power transmission 

 cable, cable support system, watertight connectors, and pressure hull penetra- 

 tions. H igh-strength galvanized steel wire armor was selected for the cable. 

 Conductor sizing was based on the smallest size that would transmit the 

 required power at no greater than 5% voltage drop. A maximum cable load to 

 be supported by the surface plant hull was established at 50,000 pounds. 



The budget cost estimates for the surface power systems are given in 

 Table 18. 



83 



