23. 1. 1.        turbine-generators & accessories                  
 23. 1. 2.        foundations                                       
 23. 1. 3.        standby exciters                                  
 23. 1. 4.        lubricating system                                
 23. 1. 5.        gas systems                                       
 23. 1. 6.        reheaters                                         
 23. 1. 7.        shielding                                         
 23. 1. 8.        weather-proof housing                             
 23. 1.         turbine-generators                                                  215.934
 
 23. 2.         misc. turbine-generator equipment                   
 
 23. 3. 1.        water intake common facilities                    
 23. 3. 2.        circulating water systems                         
 23. 3. 3.        cooling towers                                    
 23. 3. 4.        other systems which reject heat to the atmosphere 
 23. 3.         heat rejection systems                                               33.050
 
 23. 4. 1.        condensers                                        
 23. 4. 2.        condensate system                                 
 23. 4. 3.        gas removal system                                
 23. 4. 4.        turbine by-pass systems(excl. piping)             
 23. 4.         condensing systems                                  
 
 23. 5. 1.        regenerators & recuporators                       
 23. 5. 2.        pumps                                             
 23. 5. 3.        tanks                                             
 23. 5.         feed heating system                                 
 
 23. 6. 1.        turbine auxiliaries                               
 23. 6. 2.        auxiliaries cooling system(excl. piping)          
 23. 6. 3.        make-up treat. system(excl. piping)               
 23. 6. 4.        chemical treat. & condensate purification systems 
 23. 6. 5.        central lubrication service system(excl. piping)  
 23. 6.         other turbine plant equipment                       
 
 23. 7.         instrumentation & control(i&c) equipment            
 
 23.98.         spare parts allowance                                                 4.980
 23.99.         contingency allowance                               
 
 23.          turbine plant equipment                                                         253.964

 
 24. 1. 1.        generator circuits                                
 24. 1. 2.        station service                                   
 24. 1.         switchgear