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U.S. NUCLEAR REGULATORY COMMISSION DOCKET 50-410 LICENSE NPF-69 NINE MILE POINT NUCLEAR STATION UNIT 2 UPDATED SAFETY ANALYSIS REPORT OCTOBER 2022 REVISION 25
NMP Unit 2 USAR CHAPTER 15 LIST OF EFFECTIVE FIGURES Revision Revision Figure No. Number Figure No. Number 15.0-1 R08 15.5-1 R08 15.0-2 R19 15A-1 A00 15.0-2a R22 15A-2 A00 15.0-3 R14 15A-3 A00 15.1-1 R08 15A-4 A00 15.1-2 R08 15A-5 A00 15.1-3 R08 15A-6 A00 15.1-4 R08 15A-7 A00 15.2-1 R08 15A-8 A00 15.2-2 R08 15A-9 A00 15.2-3 R08 15A-10 A00 15.2-4 R08 15A-11 A00 15.2-5 R08 15A-12 A00 15.2-6 R08 15A-13 A00 15.2-7 R08 15A-14 A28 15.2-8 R08 15A-15 R04 15.2-9 R08 15A-16 A00 15.2-9a R20 15A-17 A00 15.2-9b R20 15A-18 A00 15.2-10 A22 15A-19 A00 15.2-11 A22 15A-20 A28 15.2-12 A00 15A-21 A00 15.2-13 A00 15A-22 A00 15.2-13a R09 15A-23 A00 15.2-14 A00 15A-24 R03 15.2-15 A00 15A-25 A00 15.2-16 A00 15A-26 A00 15.2-17 A00 15A-27 A00 15.2-18 R08 15A-28 A00 15.2-19 R08 15A-29 A00 15.2-20 R08 15A-30 A00 15.2-20a R20 15A-31 A00 15.3-1 R08 15A-32 R04 15.3-2 R08 15A-33 A00 15.3-3 R08 15A-34 A00 15.3-4 R08 15A-35 A00 15.3-5 R08 15A-36 A00 15.4-1 R08 15A-37 A00 15.4-2 R08 15A-38 A00 15.4-3 R08 15A-39 A00 15.4-4 R08 15A-40 R04 15.4-5 R08 15A-41 R04 15.4-6 R08 15A-42 R15 15.4-7 R08 15A-43 A00 15.4-8 R08 15A-44 A00 Chapter 15 EF 15-1 Rev. 25, October 2022
NMP Unit 2 USAR CHAPTER 15 LIST OF EFFECTIVE FIGURES (contd.)
Revision Revision Figure No. Number Figure No. Number 15A-45 A00 15A-46 A00 15A-47 A00 15A-48 A00 15A-49 A00 15A-50 A00 15A-51 A00 15A-52 A00 15A-53 R04 15B.2-1 R08 15B.3-1 R08 15B.3-2 R08 15B.3-3 R08 15B.3-4 R08 15B.3-5 R08 15B.3-6 R08 15B.5-1 R22 15C-1 R07 15C-2 R07 15C-3 R07 15C-4 R22 15C-5 R22 15C-6 R22 15C-7 R22 15C-8 R22 15C-9 R13 15E.3-1 R08 15E.3-2 R08 15E.3-3 R08 15E.3-4 R08 15E.3-5 R08 15G-1 R22 15G-2 R22 15G-3 R22 15G-4 R22 15G-5 R22 15G-6 R22 15G-7 R22 15G-8 R22 15G-9 Deleted 15G-10 Deleted Chapter 15 EF 15-2 Rev. 25, October 2022
NMP Unit 2 USAR CHAPTER 15 ACCIDENT ANALYSES TABLE OF CONTENTS Section Title 15.0 GENERAL 15.0.1 Analytical Objective 15.0.2 Analytical Categories 15.0.3 Event Evaluation 15.0.3.1 Identification of Causes and Frequency Classification 15.0.3.1.1 Unacceptable Results for Incidents of Moderate Frequency (Anticipated Operational Transients) 15.0.3.1.2 Unacceptable Results for Infrequent Incidents (Abnormal Operational Transients) 15.0.3.1.3 Unacceptable Results for Limiting Faults (Design Basis Accidents) 15.0.3.2 Sequence of Events and Systems Operations 15.0.3.2.1 Single Failures or Operator Errors 15.0.3.3 Core and System Performance 15.0.3.3.1 Introduction 15.0.3.3.2 Input Parameters and Initial Conditions for Analyzed Events 15.0.3.3.3 Initial Power/Flow Operating Constraints 15.0.3.3.4 Results 15.0.3.4 Barrier Performance 15.0.3.5 Radiological Consequences 15.0.3.6 Special Capability Studies 15.0.4 Nuclear Safety Operational Analysis Relationship 15.0.5 Loss of Instrument Air 15.0.6 Effect of Nonsafety Grade Equipment 15.0.7 References 15.1 DECREASE IN REACTOR COOLANT TEMPERATURE 15.1.1 Loss of Feedwater Heating 15.1.1.1 Identification of Causes and Frequency Classification 15.1.1.1.1 Identification of Causes 15.1.1.1.2 Frequency Classification 15.1.1.2 Sequence of Events and Systems Operation 15.1.1.2.1 Sequence of Events 15.1.1.2.2 Systems Operation 15.1.1.2.3 Effect of Single Failures and Operator Errors 15.1.1.3 Core and System Performance 15.1.1.3.1 Mathematical Model Chapter 15 EF 15-i Rev. 25, October 2022
NMP Unit 2 USAR CHAPTER 15 TABLE OF CONTENTS (contd.)
Section Title 15.1.1.3.2 Input Parameters and Initial Conditions 15.1.1.3.3 Results 15.1.1.3.4 Considerations of Uncertainties 15.1.1.4 Barrier Performance 15.1.1.5 Radiological Consequences 15.1.2 Feedwater Controller Failure -
Maximum Demand 15.1.2.1 Identification of Causes and Frequency Classification 15.1.2.1.1 Identification of Causes 15.1.2.1.2 Frequency Classification 15.1.2.2 Sequence of Events and Systems Operation 15.1.2.2.1 Sequence of Events 15.1.2.2.2 Systems Operation 15.1.2.2.3 Effect of Single Failures and Operator Errors 15.1.2.3 Core and System Performance 15.1.2.3.1 Mathematical Model 15.1.2.3.2 Input Parameters and Initial Conditions 15.1.2.3.3 Results 15.1.2.3.4 Consideration of Uncertainties 15.1.2.4 Barrier Performance 15.1.2.5 Radiological Consequences 15.1.3 Pressure Regulator Failure - Open 15.1.3.1 Identification of Causes and Frequency Classification 15.1.3.1.1 Identification of Causes 15.1.3.1.2 Frequency Classification 15.1.3.2 Sequence of Events and Systems Operation 15.1.3.2.1 Sequence of Events 15.1.3.2.2 Systems Operation 15.1.3.2.3 Effect of Single Failures and Operator Errors 15.1.3.3 Core and System Performance 15.1.3.3.1 Mathematical Model 15.1.3.3.2 Input Parameters and Initial Conditions 15.1.3.3.3 Results 15.1.3.3.4 Considerations of Uncertainties 15.1.3.4 Barrier Performance 15.1.3.5 Radiological Consequences 15.1.4 Inadvertent Safety/Relief Valve Opening 15.1.4.1 Identification of Causes and Frequency Classification Chapter 15 EF 15-ii Rev. 25, October 2022
NMP Unit 2 USAR CHAPTER 15 TABLE OF CONTENTS (contd.)
Section Title 15.1.4.1.1 Identification of Causes 15.1.4.1.2 Frequency Classification 15.1.4.2 Sequence of Events and Systems Operation 15.1.4.2.1 Sequence of Events 15.1.4.2.2 Systems Operation 15.1.4.2.3 Effect of Single Failures and Operator Errors 15.1.4.3 Core and System Performance 15.1.4.3.1 Mathematical Model 15.1.4.3.2 Input Parameters and Initial Conditions 15.1.4.3.3 Qualitative Results 15.1.4.4 Barrier Performance 15.1.4.5 Radiological Consequences 15.1.5 Spectrum of Steam System Piping Failures Inside and Outside of Containment in a PWR 15.1.6 Inadvertent RHR Shutdown Cooling Operation 15.1.6.1 Identification of Causes and Frequency Classification 15.1.6.1.1 Identification of Causes 15.1.6.1.2 Frequency Classification 15.1.6.2 Sequence of Events and Systems Operation 15.1.6.2.1 Sequence of Events 15.1.6.2.2 System Operation 15.1.6.2.3 Effect of Single Failures and Operator Action 15.1.6.3 Core and System Performance 15.1.6.4 Barrier Performance 15.1.6.5 Radiological Consequences 15.1.7 References 15.2 INCREASE IN REACTOR PRESSURE 15.2.1 Pressure Regulator Failure -
Closed 15.2.1.1 Identification of Causes and Frequency Classification 15.2.1.1.1 Identification of Causes 15.2.1.1.2 Frequency Classification 15.2.1.2 Sequence of Events and System Operation 15.2.1.2.1 Sequence of Events 15.2.1.2.2 Systems Operation 15.2.1.2.3 The Effect of Single Failures and Operator Errors 15.2.1.3 Core and System Performance Chapter 15 EF 15-iii Rev. 25, October 2022
NMP Unit 2 USAR CHAPTER 15 TABLE OF CONTENTS (contd.)
Section Title 15.2.1.3.1 Mathematical Model 15.2.1.3.2 Input Parameters and Initial Conditions 15.2.1.3.3 Results 15.2.1.3.4 Consideration of Uncertainties 15.2.1.4 Barrier Performance 15.2.1.5 Radiological Consequences 15.2.2 Generator Load Rejection 15.2.2.1 Identification of Causes and Frequency Classification 15.2.2.1.1 Identification of Causes 15.2.2.1.2 Frequency Classification 15.2.2.2 Sequence of Events and System Operation 15.2.2.2.1 Sequence of Events 15.2.2.2.2 System Operation 15.2.2.2.3 The Effect of Single Failures and Operator Errors 15.2.2.3 Core and System Performance 15.2.2.3.1 Mathematical Model 15.2.2.3.2 Input Parameters and Initial Conditions 15.2.2.3.3 Results 15.2.2.3.4 Consideration of Uncertainties 15.2.2.4 Barrier Performance 15.2.2.5 Radiological Consequences 15.2.3 Turbine Trip 15.2.3.1 Identification of Causes and Frequency Classification 15.2.3.1.1 Identification of Causes 15.2.3.1.2 Frequency Classification 15.2.3.2 Sequence of Events and Systems Operation 15.2.3.2.1 Sequence of Events 15.2.3.2.2 Systems Operation 15.2.3.2.3 The Effect of Single Failures and Operator Errors 15.2.3.3 Core and System Performance 15.2.3.3.1 Mathematical Model 15.2.3.3.2 Input Parameters and Initial Conditions 15.2.3.3.3 Results 15.2.3.3.4 Considerations of Uncertainties 15.2.3.4 Barrier Performance 15.2.3.5 Radiological Consequences 15.2.4 Main Steam Isolation Valve Closures 15.2.4.1 Identification of Causes and Frequency Classification 15.2.4.1.1 Identification of Causes Chapter 15 EF 15-iv Rev. 25, October 2022
NMP Unit 2 USAR CHAPTER 15 TABLE OF CONTENTS (contd.)
Section Title 15.2.4.1.2 Frequency Classification 15.2.4.2 Sequence of Events and Systems Operation 15.2.4.2.1 Sequence of Events 15.2.4.2.2 Systems Operation 15.2.4.2.3 Effect of Single Failures and Operator Errors 15.2.4.3 Core and System Performance 15.2.4.3.1 Mathematical Model 15.2.4.3.2 Input Parameters and Initial Conditions 15.2.4.3.3 Results 15.2.4.3.4 Considerations of Uncertainties 15.2.4.4 Barrier Performance 15.2.4.5 Radiological Consequences 15.2.5 Loss of Condenser Vacuum 15.2.5.1 Identification of Causes and Frequency Classification 15.2.5.1.1 Identification of Causes 15.2.5.1.2 Frequency Classification 15.2.5.2 Sequence of Events and Systems Operation 15.2.5.2.1 Sequence of Events 15.2.5.2.2 Systems Operation 15.2.5.2.3 Effect of Single Failures and Operator Errors 15.2.5.3 Core and System Performance 15.2.5.3.1 Mathematical Model 15.2.5.3.2 Input Parameters and Initial Conditions 15.2.5.3.3 Results 15.2.5.3.4 Considerations of Uncertainties 15.2.5.4 Barrier Performance 15.2.5.5 Radiological Consequences 15.2.6 Loss of Ac Power 15.2.6.1 Identification of Causes and Frequency Classification 15.2.6.1.1 Identification of Causes 15.2.6.1.2 Frequency Classification 15.2.6.2 Sequence of Events and Systems Operation 15.2.6.2.1 Sequence of Events 15.2.6.2.2 Systems Operation 15.2.6.2.3 Effect of Single Failures and Operator Errors 15.2.6.3 Core and System Performance 15.2.6.3.1 Mathematical Model 15.2.6.3.2 Input Parameters and Initial Conditions Chapter 15 EF 15-v Rev. 25, October 2022
NMP Unit 2 USAR CHAPTER 15 TABLE OF CONTENTS (contd.)
Section Title 15.2.6.3.3 Results 15.2.6.3.4 Consideration of Uncertainties 15.2.6.4 Barrier Performance 15.2.6.5 Radiological Consequences 15.2.7 Loss of Feedwater Flow 15.2.7.1 Identification of Causes and Frequency Classification 15.2.7.1.1 Identification of Causes 15.2.7.1.2 Frequency Classification 15.2.7.2 Sequence of Events and Systems Operation 15.2.7.2.1 Sequence of Events 15.2.7.2.2 Systems Operation 15.2.7.2.3 The Effect of Single Failures and Operator Errors 15.2.7.3 Core and System Performance 15.2.7.3.1 Mathematical Model 15.2.7.3.2 Input Parameters and Initial Conditions 15.2.7.3.3 Results 15.2.7.3.4 Considerations of Uncertainties 15.2.7.4 Barrier Performance 15.2.7.5 Radiological Consequences 15.2.8 Feedwater Line Break 15.2.9 Failure of RHR Shutdown Cooling 15.2.9.1 Identification of Causes and Frequency Classification 15.2.9.1.1 Identification of Causes 15.2.9.1.2 Frequency Classification 15.2.9.2 Sequence of Events and System Operation 15.2.9.2.1 Sequence of Events 15.2.9.2.2 System Operation 15.2.9.2.3 Effect of Single Failures and Operator Errors 15.2.9.3 Core and System Performance 15.2.9.3.1 Methods, Assumptions, and Conditions 15.2.9.3.2 Mathematical Model 15.2.9.3.3 Input Parameters and Initial Conditions 15.2.9.3.4 Results 15.2.9.3.5 Pool Temperature Sensitivity Analysis 15.2.9.3.6 Peak Suppression Pool Temperature at EPU 15.2.9.4 Barrier Performance 15.2.9.5 Radiological Consequences 15.2.10 References Chapter 15 EF 15-vi Rev. 25, October 2022
NMP Unit 2 USAR CHAPTER 15 TABLE OF CONTENTS (contd.)
Section Title 15.3 DECREASE IN REACTOR COOLANT SYSTEM FLOW RATE 15.3.1 Recirculation Pump Trip 15.3.1.1 Identification of Causes and Frequency Classification 15.3.1.1.1 Identification of Causes 15.3.1.1.2 Frequency Classification 15.3.1.2 Sequence of Events and Systems Operation 15.3.1.2.1 Sequence of Events 15.3.1.2.2 System Operation 15.3.1.2.3 The Effect of Single Failures and Operator Errors 15.3.1.3 Core and System Performance 15.3.1.3.1 Mathematical Model 15.3.1.3.2 Input Parameters and Initial Conditions 15.3.1.3.3 Results 15.3.1.3.4 Consideration of Uncertainties 15.3.1.4 Barrier Performance 15.3.1.5 Radiological Consequences 15.3.2 Recirculation Flow Control Failure - Decreasing Flow 15.3.2.1 Identification of Causes and Frequency Classification 15.3.2.1.1 Identification of Causes 15.3.2.1.2 Frequency Classification 15.3.2.2 Sequence of Events and Systems Operation 15.3.2.2.1 Sequence of Events 15.3.2.2.2 Systems Operation 15.3.2.2.3 The Effect of Single Failures and Operator Errors 15.3.2.3 Core and System Performance 15.3.2.3.1 Mathematical Model 15.3.2.3.2 Input Parameters and Initial Conditions 15.3.2.3.3 Results 15.3.2.3.4 Consideration of Uncertainties 15.3.2.4 Barrier Performance 15.3.2.5 Radiological Consequences 15.3.3 Recirculation Pump Seizure 15.3.3.1 Identification of Causes and Frequency Classification 15.3.3.1.1 Identification of Causes 15.3.3.1.2 Frequency Classification 15.3.3.2 Sequence of Events and Systems Operations 15.3.3.2.1 Sequence of Events Chapter 15 EF 15-vii Rev. 25, October 2022
NMP Unit 2 USAR CHAPTER 15 TABLE OF CONTENTS (contd.)
Section Title 15.3.3.2.2 Systems Operation 15.3.3.2.3 The Effect of Single Failures and Operator Errors 15.3.3.3 Core and System Performance 15.3.3.3.1 Mathematical Model 15.3.3.3.2 Input Parameters and Initial Conditions 15.3.3.3.3 Results 15.3.3.3.4 Considerations of Uncertainties 15.3.3.4 Barrier Performance 15.3.3.5 Radiological Consequences 15.3.4 Recirculation Pump Shaft Break 15.3.4.1 Identification of Causes and Frequency Classification 15.3.4.1.1 Identification of Causes 15.3.4.1.2 Frequency Classification 15.3.4.2 Sequence of Events and Systems Operations 15.3.4.2.1 Sequence of Events 15.3.4.2.2 Systems Operation 15.3.4.2.3 The Effect of Single Failures and Operator Errors 15.3.4.3 Core and System Performance 15.3.4.4 Barrier Performance 15.3.4.5 Radiological Consequences 15.3.5 Reference 15.4 REACTIVITY AND POWER DISTRIBUTION ANOMALIES 15.4.1 Rod Withdrawal Error - Low Power 15.4.1.1 Control Rod Withdrawal Error During Refueling 15.4.1.1.1 Identification of Causes and Frequency Classification 15.4.1.1.2 Sequence of Events and Systems Operation 15.4.1.1.3 Core and System Performances 15.4.1.1.4 Barrier Performance 15.4.1.1.5 Radiological Consequences 15.4.1.2 Continuous Rod Withdrawal During Reactor Startup 15.4.1.2.1 Identification of Causes and Frequency Classification 15.4.1.2.2 Sequence of Events and Systems Operation 15.4.1.2.3 Core and System Performance 15.4.1.2.4 Barrier Performance 15.4.1.2.5 Radiological Consequences 15.4.1.3 Special Analysis Chapter 15 EF 15-viii Rev. 25, October 2022
NMP Unit 2 USAR CHAPTER 15 TABLE OF CONTENTS (contd.)
Section Title 15.4.2 Rod Withdrawal Error at Power 15.4.2.1 Identification of Causes and Frequency Classification 15.4.2.1.1 Identification of Causes 15.4.2.1.2 Frequency Classification 15.4.2.2 Sequence of Events and Systems Operation 15.4.2.2.1 Sequence of Events 15.4.2.2.2 System Operations 15.4.2.2.3 Effect of Single Failures and Operator Errors 15.4.2.3 Core and System Performance 15.4.2.3.1 Mathematical Model 15.4.2.3.2 Input Parameters and Initial Conditions 15.4.2.3.3 Results 15.4.2.3.4 Considerations of Uncertainties 15.4.2.4 Barrier Performance 15.4.2.5 Radiological Consequences 15.4.3 Control Rod Maloperation (System Malfunction or Operator Error) 15.4.4 Abnormal Startup of Idle Recirculation Pump 15.4.4.1 Identification of Causes and Frequency Classification 15.4.4.1.1 Identification of Causes 15.4.4.2 Sequence of Events and Systems Operation 15.4.4.2.1 Sequence of Events 15.4.4.2.2 Systems Operation 15.4.4.2.3 The Effect of Single Failures and Operator Errors 15.4.4.3 Core and System Performance 15.4.4.3.1 Mathematical Model 15.4.4.3.2 Input Parameters and Initial Conditions 15.4.4.3.3 Results 15.4.4.3.4 Consideration of Uncertainties 15.4.4.4 Barrier Performance 15.4.4.5 Radiological Consequences 15.4.5 Recirculation Flow Control Failure with Increasing Flow 15.4.5.1 Identification of Causes and Frequency Classification 15.4.5.1.1 Identification of Causes 15.4.5.1.2 Frequency Classification 15.4.5.2 Sequence of Events and Systems Operation 15.4.5.2.1 Sequence of Events Chapter 15 EF 15-ix Rev. 25, October 2022
NMP Unit 2 USAR CHAPTER 15 TABLE OF CONTENTS (contd.)
Section Title 15.4.5.2.2 Systems Operation 15.4.5.2.3 The Effect of Single Failures and Operator Errors 15.4.5.3 Core and System Performance 15.4.5.3.1 Mathematical Model 15.4.5.3.2 Input Parameters and Initial Conditions 15.4.5.3.3 Results 15.4.5.3.4 Considerations of Uncertainties 15.4.5.4 Barrier Performance 15.4.5.4.1 Fast Opening of One Recirculation Valve 15.4.5.4.2 Fast Opening of Two Recirculation Valves 15.4.5.5 Radiological Consequences 15.4.6 Chemical and Volume Control System Malfunctions 15.4.7 Misplaced Bundle Accident 15.4.7.1 Identification of Causes and Frequency Classification 15.4.7.1.1 Identification of Causes 15.4.7.1.2 Frequency of Occurrence 15.4.7.2 Sequence of Events and Systems Operation 15.4.7.3 Core and System Performance 15.4.7.3.1 Analysis 15.4.7.3.2 Results 15.4.7.4 Barrier Performance 15.4.7.5 Radiological Consequences 15.4.8 Spectrum of Rod Ejection Assemblies 15.4.9 Control Rod Drop Accident 15.4.9.1 Evaluation of Results 15.4.9.2 Barrier Performance 15.4.9.3 Radiological Consequences 15.4.9.3.1 Design Basis Analysis 15.4.9.3.2 Realistic Analysis 15.4.10 References 15.5 INCREASE IN REACTOR COOLANT INVENTORY 15.5.1 Inadvertent HPCS Startup 15.5.1.1 Identification of Causes and Frequency Classification 15.5.1.1.1 Identification of Causes 15.5.1.1.2 Frequency Classification 15.5.1.2 Sequence of Events and Systems Operation 15.5.1.2.1 Sequence of Events 15.5.1.2.2 System Operation Chapter 15 EF 15-x Rev. 25, October 2022
NMP Unit 2 USAR CHAPTER 15 TABLE OF CONTENTS (contd.)
Section Title 15.5.1.2.3 Effect of Single Failures and Operator Errors 15.5.1.3 Core and System Performance 15.5.1.3.1 Mathematical Model 15.5.1.3.2 Input Parameter and Initial Conditions 15.5.1.3.3 Results 15.5.1.4 Barrier Performance 15.5.1.5 Radiological Consequences 15.5.2 Chemical Volume Control System Malfunction (or Operator Error) 15.5.3 BWR Transients That Increase Reactor Coolant Inventory 15.6 DECREASE IN REACTOR COOLANT INVENTORY 15.6.1 Inadvertent Safety Relief Valve Opening 15.6.2 Instrument Line Pipe Break 15.6.2.1 Identification of Causes and Frequency Classification 15.6.2.1.1 Identification of Causes 15.6.2.1.2 Frequency Classification 15.6.2.2 Sequence of Events and Operator Actions 15.6.2.3 Core and System Performance 15.6.2.4 Barrier Performance 15.6.2.4.1 General 15.6.2.4.2 Containment Effects 15.6.2.5 Radiological Consequences 15.6.2.5.1 Design Basis Analysis 15.6.2.5.2 Realistic Analysis 15.6.3 Steam Generator Tube Failure 15.6.4 Steam System Piping Break Outside Containment 15.6.4.1 Identification of Causes and Frequency Classification 15.6.4.1.1 Causes 15.6.4.1.2 Frequency Classification 15.6.4.2 Sequence of Events and Systems Operation 15.6.4.2.1 Sequence of Events 15.6.4.2.2 Systems Operation 15.6.4.2.3 Effect of Single Failures and Operator Errors 15.6.4.3 Core and System Performance 15.6.4.3.1 Input Parameters and Initial Conditions 15.6.4.3.2 Results Chapter 15 EF 15-xi Rev. 25, October 2022
NMP Unit 2 USAR CHAPTER 15 TABLE OF CONTENTS (contd.)
Section Title 15.6.4.3.3 Considerations of Uncertainties 15.6.4.4 Barrier Performance 15.6.4.5 Radiological Consequences 15.6.4.5.1 Design Basis Analysis 15.6.4.5.2 Fission Product Release from Fuel 15.6.4.5.3 Fission Product Transport to the Environment 15.6.4.5.4 Results 15.6.4.5.5 Realistic Analysis 15.6.4.5.6 Results 15.6.5 Loss-of-Coolant Accidents (Resulting from Spectrum of Postulated Piping Breaks Within the Reactor Coolant Pressure Boundary) Inside Primary Containment 15.6.5.1 Identification of Causes and Frequency Classification 15.6.5.1.1 Identification of Causes 15.6.5.1.2 Frequency Classification 15.6.5.2 Sequence of Events and Systems Operation 15.6.5.2.1 Sequence of Events 15.6.5.2.2 Systems Operations 15.6.5.2.3 Effect of Single Failures and Operator Errors 15.6.5.3 Core and System Performance 15.6.5.3.1 Mathematical Model 15.6.5.3.2 Input Parameters and Initial Conditions 15.6.5.3.3 Results 15.6.5.3.4 Consideration of Uncertainties 15.6.5.4 Barrier Performance 15.6.5.5 Radiological Consequences 15.6.5.5.1 Design Basis Analyses 15.6.5.5.2 Fission Product Release from Fuel 15.6.5.5.3 Fission Product Transport to the Environment 15.6.5.5.4 Results 15.6.5.5.5 Realistic Analysis 15.6.6 Feedwater Line Break - Outside Containment 15.6.6.1 Identification of Causes and Frequency Classification 15.6.6.1.1 Identification of Causes 15.6.6.1.2 Frequency Classification 15.6.6.2 Sequence of Events and Systems Operation 15.6.6.2.1 Sequence of Events Chapter 15 EF 15-xii Rev. 25, October 2022
NMP Unit 2 USAR CHAPTER 15 TABLE OF CONTENTS (contd.)
Section Title 15.6.6.2.2 Systems Operations 15.6.6.2.3 Effect of Single Failures and Operator Errors 15.6.6.3 Core and System Performance 15.6.6.3.1 Qualitative Summary 15.6.6.3.2 Qualitative Results 15.6.6.3.3 Consideration of Uncertainties 15.6.6.4 Barrier Performance 15.6.6.5 Radiological Consequences 15.6.6.5.1 Design Basis Analysis 15.6.7 References 15.7 RADIOACTIVE RELEASE FROM SUBSYSTEMS AND COMPONENTS 15.7.1 Radioactive Gas Waste System Leak or Failure 15.7.1.1 Identification of Causes and Frequency Classification 15.7.1.1.1 Identification of Causes 15.7.1.1.2 Frequency Classification 15.7.1.2 Sequence of Events and System Operation 15.7.1.2.1 Sequence of Events 15.7.1.2.2 Identification of Operator Actions 15.7.1.2.3 Systems Operation 15.7.1.2.4 Effect of Single Failures and Operator Errors 15.7.1.3 Core and System Performance 15.7.1.4 Barrier Performance 15.7.1.5 Radiological Consequences 15.7.1.5.1 Design Basis Analysis 15.7.2 Radioactive Liquid Waste System Leak or Failure (Release to the Atmosphere) 15.7.3 Postulated Radioactive Releases Due to Liquid Radwaste Equipment Failure 15.7.3.1 Condensate Storage Tanks Rupture 15.7.3.1.1 Identification of Causes and Frequency Classification 15.7.3.1.2 Sequence of Events and Systems Operation 15.7.3.1.3 Core and System Performance 15.7.3.1.4 Barrier Performance 15.7.3.1.5 Radiological Consequences 15.7.4 Fuel Handling Accident 15.7.4.1 Identification of Causes and Frequency Classification Chapter 15 EF 15-xiii Rev. 25, October 2022
NMP Unit 2 USAR CHAPTER 15 TABLE OF CONTENTS (contd.)
Section Title 15.7.4.1.1 Identification of Causes 15.7.4.1.2 Frequency Classification 15.7.4.2 Sequence of Events and Systems Operation 15.7.4.2.1 Sequence of Events 15.7.4.2.2 Identification of Operator Actions 15.7.4.2.3 System Operation 15.7.4.2.4 Effects of Single Failures and Operator Errors 15.7.4.3 Fuel Assembly Drop Accident Evaluation 15.7.4.3.1 Mathematical Model 15.7.4.3.2 Input Parameters and Initial Conditions for GE 9 (8x8) Fuel Using GESTAR II, NEDE-24011-P-A-10, Methodology 15.7.4.3.3 Results 15.7.4.3.4 Input Parameters and Initial Conditions for GE 9 (8x8 Array),
GE 11 (9x9 Array) and GE 14 (10x10 Array) Using GESTAR II, NEDE-24011-P-A-11-US and NEDE-24011-P-A-14-US, Methodology 15.7.4.4 Barrier Performance 15.7.4.5 Radiological Consequences 15.7.4.5.1 Design Basis Analysis 15.7.4.5.2 Realistic Analysis 15.7.4.5.3 Inoperable Secondary Containment Analysis 15.7.5 Spent Fuel Cask Drop Accident 15.7.5.1 Identification of Causes and Frequency Classification 15.7.5.1.1 Identification of Causes 15.7.5.1.2 Frequency Classification 15.7.5.2 Sequence of Events and System Operation 15.7.5.2.1 Sequence of Events 15.7.5.2.2 Identification of Operator Actions 15.7.5.2.3 System Operation 15.7.5.2.4 Effects of Single Failures and Operator Errors 15.7.5.3 Core and System Performance 15.7.5.4 Barrier Performance 15.7.5.4.1 Cask Damage 15.7.5.4.2 Releases From the Cask Handling Area 15.7.5.5 Radiological Consequences 15.7.5.5.1 Analysis 15.7.6 References Chapter 15 EF 15-xiv Rev. 25, October 2022
NMP Unit 2 USAR CHAPTER 15 TABLE OF CONTENTS (contd.)
Section Title 15.8 ANTICIPATED TRANSIENTS WITHOUT SCRAM 15.8.1 Requirements 15.8.2 Plant Capabilities 15.8.3 Equipment Description 15.8.3.1 Redundant Reactivity Control System 15.8.3.2 Alternate Rod Injection 15.8.3.3 Recirculation Pump Trip 15.8.3.4 Feedwater Runback 15.8.3.5 Standby Liquid Control System 15.8.3.6 Scram Discharge Volume 15.8.4 Operator Actions 15.8.5 References APPENDIX 15A PLANT NUCLEAR SAFETY OPERATIONAL ANALYSIS (NSOA)
APPENDIX 15B RECIRCULATION SYSTEMS SINGLE-LOOP OPERATION APPENDIX 15C TWO SAFETY/RELIEF VALVES OUT OF SERVICE APPENDIX 15D ONE MAIN STEAM LINE ISOLATION VALVE OUT OF SERVICE APPENDIX 15E COMPLETE CORE OFFLOAD/RELOAD PROCEDURE GUIDELINES APPENDIX 15F TO BE SUBMITTED IN A FUTURE UPDATE APPENDIX 15G MAXIMUM EXTENDED LOAD LINE LIMIT ANALYSIS PLUS OPERATION APPENDIX 15H MODE SWITCH MISOPERATION APPENDIX 15I TURBINE CONTROL VALVE/TURBINE STOP VALVE OUT-OF-SERVICE Chapter 15 EF 15-xv Rev. 25, October 2022
NMP Unit 2 USAR CHAPTER 15 LIST OF TABLES Table Number Title 15.0-1
SUMMARY
OF EVENT RESULTS - CYCLE 1 15.0-2 REQUIRED OPERATING LIMIT CPR VALUES - CYCLE 1 15.0-3 INPUT PARAMETERS AND INITIAL CONDITIONS FOR TRANSIENTS 15.0-3a INPUT PARAMETERS AND INITIAL CONDITIONS FOR TRANSIENTS 15.0-4
SUMMARY
OF ACCIDENTS 15.0-5 NONSAFETY-GRADE SYSTEMS/COMPONENTS ASSUMED IN FSAR TRANSIENT ANALYSIS 15.0-6 OPERATING OPTIONS ANALYSIS 15.1-1 SEQUENCE OF EVENTS FOR FIGURE 15.1-1 (LOSS OF FEEDWATER HEATING - AUTOMATIC RECIRCULATION FLOW CONTROL) 15.1-2 SEQUENCE OF EVENTS FOR FIGURE 15.1-2 (LOSS OF FEEDWATER HEATING - MANUAL RECIRCULATION FLOW CONTROL) 15.1-3 SEQUENCE OF EVENTS FOR FIGURE 15.1-3 (FEEDWATER CONTROLLER FAILURE - DEMAND) 15.1-4 SEQUENCE OF EVENTS FOR FIGURE 15.1-4 (PRESSURE REGULATOR FAILURE - OPEN) 15.1-5 SEQUENCE OF EVENTS FOR INADVERTENT SAFETY/RELIEF VALVE OPENING 15.1-6 SEQUENCE OF EVENTS FOR INADVERTENT RHR SHUTDOWN COOLING OPERATION 15.2-1 LOSS OF GENERATOR ELECTRICAL LOAD SEQUENCE OF EVENTS FOR FIGURE 15.2-1 15.2-2 LOSS OF GENERATOR ELECTRICAL LOAD WITH BYPASS FAILURE SEQUENCE OF EVENTS FOR FIGURE 15.2-2 15.2-3 TURBINE TRIP SEQUENCE OF EVENTS FOR FIGURE 15.2-3 15.2-4 TURBINE TRIP WITH BYPASS FAILURE SEQUENCE OF EVENTS FOR FIGURE 15.2-4 Chapter 15 EF 15-xvi Rev. 25, October 2022
NMP Unit 2 USAR CHAPTER 15 LIST OF TABLES (contd.)
Table Number Title 15.2-5 CLOSURE OF ALL MAIN STEAM ISOLATION VALVES SEQUENCE OF EVENTS FOR FIGURE 15.2-5 15.2-6 TYPICAL RATES OF DECAY FOR CONDENSER VACUUM 15.2-7 LOSS OF CONDENSER VACUUM SEQUENCE OF EVENTS FOR FIGURE 15.2-6 15.2-8 TRIP SIGNALS ASSOCIATED WITH LOSS OF CONDENSER VACUUM 15.2-9 LOSS OF ALL RESERVE AND NORMAL TRANSFORMER SEQUENCE OF EVENTS FOR FIGURE 15.2-7 15.2-10 LOSS OF ALL GRID CONNECTIONS SEQUENCE OF EVENTS FOR FIGURE 15.2-8 15.2-11 LOSS OF FEEDWATER FLOW SEQUENCE OF EVENTS FOR FIGURE 15.2-9 15.2-11a LOSS OF FEEDWATER FLOW SEQUENCE OF EVENTS FOR FIGURES 15.2-9A AND 15.2-9B 15.2-12 SEQUENCE OF EVENTS FOR FAILURE OF RHR SHUTDOWN COOLING 15.2-13 INPUT PARAMETERS FOR EVALUATION OF FAILURE OF RHR SHUTDOWN COOLING 15.3-1 SEQUENCE OF EVENTS FOR FIGURE 15.3-1 (TRIP ONE RECIRCULATION PUMP) 15.3-2 SEQUENCE OF EVENTS FOR FIGURE 15.3-2 (TRIP BOTH RECIRCULATION PUMPS) 15.3-3 SEQUENCE OF EVENTS FOR FIGURE 15.3-3 (FAST CLOSURE OF ONE MAIN RECIRCULATION VALVE) 15.3-4 SEQUENCE OF EVENTS FOR FIGURE 15.3-4 (FAST CLOSURE OF BOTH MAIN RECIRCULATION VALVES) 15.3-5 SEQUENCE OF EVENTS FOR FIGURE 15.3-5 (RECIRCULATION PUMP SEIZURE) 15.4-1 SEQUENCE OF EVENTS - ROD WITHDRAWAL ERROR IN POWER RANGE 15.4-2 INPUT PARAMETERS AND INITIAL CONDITIONS FOR ROD WITHDRAWAL TRANSIENT Chapter 15 EF 15-xvii Rev. 25, October 2022
NMP Unit 2 USAR CHAPTER 15 LIST OF TABLES (contd.)
Table Number Title 15.4-3 SEQUENCE OF EVENTS FOR ABNORMAL STARTUP OF IDLE RECIRCULATION PUMP (FIGURE 15.4-6) 15.4-4 SEQUENCE OF EVENTS FOR FAST OPENING OF ONE RECIRCULATION VALVE (FIGURE 15.4-7) 15.4-5 SEQUENCE OF EVENTS FOR FAST OPENING OF TWO RECIRCULATION VALVES (FIGURE 15.4-8) 15.4-6 SEQUENCE OF EVENTS FOR MISPLACED BUNDLE ACCIDENT 15.4-7 INPUT PARAMETERS AND INITIAL CONDITIONS FOR FUEL BUNDLE LOADING ERROR - CYCLE 1 15.4-8 RESULTS OF FUEL LOADING ERROR ANALYSIS - CYCLE 1 15.4-9 INCREMENT WORTH OF THE MOST REACTIVE ROD USING A BANK POSITION WITHDRAWAL SEQUENCE - CYCLE 1 15.4-10 CONTROL ROD DROP ACCIDENT EVALUATION PARAMETERS 15.4-11 CONTROL ROD DROP ACCIDENT (DESIGN BASIS ANALYSIS)
ACTIVITY AIRBORNE IN TURBINE AND CONDENSER (CURIES) 15.4-12 CONTROL ROD DROP ACCIDENT (DESIGN BASIS ANALYSIS)
ACTIVITY RELEASE TO ENVIRONMENT (CURIES) 15.4-13 CONTROL ROD DROP ACCIDENT (DESIGN BASIS ANALYSIS)
RADIOLOGICAL EFFECTS 15.4-14 CONTROL ROD DROP ACCIDENT (REALISTIC ANALYSIS)
ACTIVITY AIRBORNE IN CONDENSER (CURIES) 15.4-15 CONTROL ROD DROP ACCIDENT (REALISTIC ANALYSIS)
ACTIVITY RELEASE TO ENVIRONMENT 15.4-16 CONTROL ROD DROP ACCIDENT (REALISTIC ANALYSIS)
RADIOLOGICAL EFFECTS 15.5-1 SEQUENCE OF EVENTS FOR INADVERTENT STARTUP OF HPCS (FIGURE 15.5-1) 15.6-1 INSTRUMENT LINE BREAK ACCIDENT - PARAMETERS TABULATED FOR POSTULATED ACCIDENT ANALYSES 15.6-2 INSTRUMENT LINE FAILURE (REALISTIC ANALYSIS)
DESIGN COOLANT IODINE ACTIVITY BEFORE ACCIDENT Chapter 15 EF 15-xviii Rev. 25, October 2022
NMP Unit 2 USAR CHAPTER 15 LIST OF TABLES (contd.)
Table Number Title 15.6-3 INSTRUMENT LINE FAILURE (REALISTIC ANALYSIS)
ACTIVITY RELEASED TO THE ENVIRONMENT 15.6-4 INSTRUMENT LINE FAILURE RADIOLOGICAL EFFECTS (REALISTIC ANALYSIS) 15.6-5 SEQUENCE OF EVENTS FOR STEAM LINE BREAK OUTSIDE CONTAINMENT 15.6-6 STEAM LINE BREAK ACCIDENT - PARAMETERS TABULATED FOR POSTULATED ACCIDENT ANALYSES 15.6-7 STEAM LINE BREAK ACCIDENT (DESIGN BASIS ANALYSIS)
DESIGN COOLANT IODINE ACTIVITY BEFORE ACCIDENT 15.6-8 STEAM LINE BREAK ACCIDENT (DESIGN BASIS ANALYSIS)
ACTIVITY RELEASE TO ENVIRONMENT 15.6-9 STEAM LINE BREAK ACCIDENT (DESIGN BASIS ANALYSIS)
RADIOLOGICAL EFFECTS 15.6-10 STEAM LINE BREAK ACCIDENT (REALISTIC ANALYSIS)
EXPECTED COOLANT IODINE ACTIVITY BEFORE ACCIDENT 15.6-11 STEAM LINE BREAK ACCIDENT (REALISTIC ANALYSIS)
ACTIVITY RELEASE TO ENVIRONMENT 15.6-12 STEAM LINE BREAK ACCIDENT (REALISTIC ANALYSIS)
RADIOLOGICAL EFFECTS 15.6-13 LOSS-OF-COOLANT ACCIDENT - PARAMETERS TABULATED FOR POSTULATED ACCIDENT ANALYSES 15.6-14 LOSS-OF-COOLANT ACCIDENT (DESIGN BASIS ANALYSIS)
ACTIVITY AVAILABLE FOR RELEASE FROM PRIMARY CONTAINMENT (AND DEPOSITED) AT END OF RELEASE FROM VESSEL 15.6-15 DELETED 15.6-15a DELETED 15.6-15b LOSS-OF-COOLANT ACCIDENT (DESIGN BASIS ANALYSIS)
ACTIVITY RELEASE TO ENVIRONMENT 15.6-16 DELETED 15.6-16a DELETED Chapter 15 EF 15-xix Rev. 25, October 2022
NMP Unit 2 USAR CHAPTER 15 LIST OF TABLES (contd.)
Table Number Title 15.6-16b LOSS-OF-COOLANT ACCIDENT (DESIGN BASIS ANALYSIS)
RADIOLOGICAL EFFECTS 15.6-17 LOSS-OF-COOLANT ACCIDENT (REALISTIC ANALYSIS)
REACTOR COOLANT IODINE CONCENTRATIONS 15.6-18 LOSS-OF-COOLANT ACCIDENT (REALISTIC ANALYSIS)
ACTIVITY AIRBORNE IN CONTAINMENT DUE TO IODINE SPIKING 15.6-19 LOSS-OF-COOLANT ACCIDENT (REALISTIC ANALYSIS)
ACTIVITY RELEASE TO ENVIRONMENT 15.6-20 LOSS-OF-COOLANT ACCIDENT (REALISTIC ANALYSIS)
RADIOLOGICAL EFFECTS 15.6-21 SEQUENCE OF EVENTS FOR FEEDWATER LINE BREAK OUTSIDE CONTAINMENT 15.7-1 SEQUENCE OF EVENTS FOR MAIN CONDENSER GAS TREATMENT SYSTEM FAILURE 15.7-2 GASEOUS RADWASTE SYSTEM FAILURE PARAMETERS TABULATED FOR POSTULATED ACCIDENT ANALYSIS 15.7-3 ACTIVITY IN OFFGAS SYSTEM AT TIME OF ACCIDENT 15.7-4 GASEOUS RADWASTE SYSTEM FAILURE SYSTEM RUPTURE (DESIGN BASIS ANALYSIS) FISSION PRODUCT RELEASE TO ENVIRONMENT 15.7-5 GASEOUS RADWASTE SYSTEM FAILURE SYSTEM RUPTURE (DESIGN BASIS ANALYSIS) OFFSITE RADIOLOGICAL EFFECTS 15.7-6 LIQUID RADWASTE TANKS FAILURE PARAMETERS TABULATED FOR POSTULATED ACCIDENT ANALYSIS 15.7-7 LIQUID RADWASTE SYSTEM FAILURE ANALYSIS CONDENSATE STORAGE TANK INVENTORY 15.7-8 LIQUID RADWASTE TANKS FAILURE FINAL CONCENTRATION AND FRACTION OF MPC AT WATER INTAKE 15.7-9 FUEL HANDLING ACCIDENT PARAMETERS TABULATED FOR POSTULATED ACCIDENT ANALYSIS 15.7-10 FUEL HANDLING ACCIDENT (DESIGN BASIS ANALYSIS)
ACTIVITY RELEASED TO FUEL POOL Chapter 15 EF 15-xx Rev. 25, October 2022
NMP Unit 2 USAR CHAPTER 15 LIST OF TABLES (contd.)
Table Number Title 15.7-11 FUEL HANDLING ACCIDENT (DESIGN BASIS ANALYSIS)
ACTIVITY RELEASED TO THE ENVIRONMENT 15.7-12 FUEL HANDLING ACCIDENT (DESIGN BASIS ANALYSIS)
RADIOLOGICAL EFFECTS 15.7-13 FUEL HANDLING ACCIDENT (REALISTIC ANALYSIS)
ACTIVITY AIRBORNE IN THE REACTOR BUILDING 15.7-14 FUEL HANDLING ACCIDENT (REALISTIC ANALYSIS)
ACTIVITY RELEASED TO THE ENVIRONMENT 15.7-15 FUEL HANDLING ACCIDENT (REALISTIC ANALYSIS)
RADIOLOGICAL EFFECTS 15.7-16 SHIPPING CASK DROP ACCIDENT PARAMETERS TABULATED FOR POSTULATED ACCIDENT ANALYSIS 15.7-17 SHIPPING CASK DROP ACCIDENT (DESIGN BASIS ANALYSIS) RADIOLOGICAL EFFECTS Chapter 15 EF 15-xxi Rev. 25, October 2022
NMP Unit 2 USAR CHAPTER 15 LIST OF FIGURES Figure Number Title 15.0-1 MINIMUM OPERATING CPR LIMIT VS. SCRAM SPEED -
CYCLE 1 15.0-2 NMP2 OPERATING POWER/FLOW MAP 15.0-2a EPU/MELLLA+ OPERATING POWER FLOW MAP 15.0-3 SCRAM POSITION AND REACTIVITY CHARACTERISTICS 15.1-1 LOSS OF FEEDWATER HEATER, AUTO FLOW CONTROL 15.1-2 LOSS OF FEEDWATER HEATER, MANUAL FLOW CONTROL 15.1-3 FEEDWATER CONTROLLER FAILURE, MAXIMUM DEMAND 15.1-4 PRESSURE REGULATOR FAILURE 15.2-1 GENERATOR LOAD REJECTION WITH BYPASS 15.2-2 GENERATOR LOAD REJECTION WITHOUT BYPASS 15.2-3 TURBINE TRIP, TRIP SCRAM, BYPASS AND RPT - ON 15.2-4 TURBINE TRIP WITHOUT BYPASS, TRIP SCRAM 15.2-5 MSIV CLOSURE, POSITION SCRAM 15.2-6 LOSS OF CONDENSER VACUUM 15.2-7 LOSS OF ALL RESERVE AND NORMAL TRANSFORMER 15.2-8 LOSS OF ALL GRID CONNECTIONS 15.2-9 LOSS OF FEEDWATER FLOW 15.2-9a LOSS OF FEEDWATER FLOW EPU (3,988 MWT) LEVEL INSIDE THE SHROUD 15.2-9b LOSS OF FEEDWATER FLOW EPU (3,988 MWT) DOWNCOMER LEVEL RESPONSE 15.2-10
SUMMARY
OF PATHS AVAILABLE TO ACHIEVE COLD SHUTDOWN 15.2-11 ADS/RHR COOLING LOOPS 15.2-12 ACTIVITY C1 ALTERNATE SHUTDOWN COOLING PATH UTILIZING RHR LOOP B Chapter 15 EF 15-xxii Rev. 25, October 2022
NMP Unit 2 USAR CHAPTER 15 LIST OF FIGURES (contd.)
Figure Number Title 15.2-13 RHR LOOP C 15.2-13a LOW PRESSURE CORE SPRAY (CSL) IN ALTERNATE SHUTDOWN COOLING 15.2-14 RHR LOOP B (SUPPRESSION POOL COOLING MODE) 15.2.15 ACTIVITY C2 ALTERNATE SHUTDOWN COOLING PATH UTILIZING RHR LOOP A 15.2-16 VESSEL TEMPERATURE AND PRESSURE VS TIME 15.2-17 SUPPRESSION POOL TEMPERATURE VS TIME 15.2-18 VESSEL PRESSURE VS TIME ALTERNATE SHUTDOWN COOLING ANALYSIS - POWER UPRATE 15.2-19 VESSEL TEMPERATURE VS TIME ALTERNATE SHUTDOWN COOLING ANALYSIS - POWER UPRATE 15.2-20 SUPPRESSION POOL TEMPERATURE VS TIME ALTERNATE SHUTDOWN COOLING ANALYSIS - POWER UPRATE 15.2-20a EPU SUPPRESSION POOL TEMPERATURE RESPONSE TO ASDC EVENT 15.3-1 TRIP OF ONE RECIRCULATION PUMP MOTOR 15.3-2 TRIP OF BOTH RECIRCULATION PUMP MOTORS 15.3-3 FAST CLOSURE OF ONE MAIN RECIRCULATION VALVE AT 60% PER SECOND 15.3-4 FAST CLOSURE OF BOTH MAIN RECIRCULATION VALVES AT 11% PER SECOND 15.3-5 SEIZURE OF ONE RECIRCULATION PUMP 15.4-1 ROD PATTERN FOR RWE ANALYSIS 15.4-2 VARIATION OF CORE POWER AND MCPR WITH THE DISTANCE ROD (26-35) WITHDRAWN DURING CONTINUOUS ROD WITHDRAWAL ERROR 15.4-3 MLHGR VS DISTANCE ROD (26,35) WITHDRAWN 15.4-4 RBM RESPONSE TO CONTROL ROD MOTION, CHANNEL A & C Chapter 15 EF 15-xxiii Rev. 25, October 2022
NMP Unit 2 USAR CHAPTER 15 LIST OF FIGURES (contd.)
Figure Number Title 15.4-5 RBM RESPONSE TO CONTROL ROD MOTION, CHANNEL B & D 15.4-6 ABNORMAL STARTUP OF IDLE RECIRCULATION LOOP PUMP 15.4-7 FAST OPENING OF ONE MAIN RECIRCULATION LOOP VALVE AT 30% PER SECOND 15.4-8 FAST OPENING OF BOTH MAIN RECIRCULATION LOOP VALVES AT 11% PER SECOND 15.5-1 INADVERTENT STARTUP OF HPCS Chapter 15 EF 15-xxiv Rev. 25, October 2022