ML12083A155

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Final Safety Analysis Report, Amendment 108. Table of Contents, Sections 1.0 Through 17.2.1
ML12083A155
Person / Time
Site: Watts Bar Tennessee Valley Authority icon.png
Issue date: 03/05/2012
From:
Tennessee Valley Authority
To:
Office of Nuclear Reactor Regulation
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Download: ML12083A155 (60)
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WATTS BAR TABLE OF CONTENTS Section Title Page 003_TVA_WB_FSAR_SECTION_1.PDFVA_WB_FSAR_SECTION_2_A.PDF005_TVA_WB_FSAR_SECTION_2_B.PDF005_TVA_WB_FSAR_SECTION_2_B.PDF027_TVA_WB_FSAR_SECTION_16.PDF028_TVA_WB_FSAR_SECTION_17.0.PDF

1.0 INTRODUCTION

AND GENERAL DESCRIPTION OF PLANT

1.1 INTRODUCTION

1.1-1 1.

1.1 INTRODUCTION

1.1-1 1.1.2 LICENSING BASIS DOCUMENTS 1.1-1 1.1.3 NRC COMMITMENTS 1.1-2 1.2 GENERAL PLANT DESCRIPTION 1.2-1 1.2.1 SITE CHARACTERISTICS 1.2-1 1.2.1.1 LOCATION 1.2-1 1.2.1.2 DEMOGRAPHY 1.2-1 1.2.1.3 METEOROLOGY 1.2-1 1.2.1.4 HYDROLOGY 1.2-1 1.2.1.5 GEOLOGY 1.2-1 1.2.1.6 SEISMOLOGY 1.2-2 1.2.2 FACILITY DESCRIPTION 1.2-2 1.2.2.1 DESIGN CRITERIA 1.2-2 1.2.2.2 NUCLEAR STEAM SUPPLY SYSTEM (NSSS) 1.2-2 1.2.2.3 CONTROL AND INSTRUMENTATION 1.2-4 1.2.2.4 FUEL HANDLING SYSTEM 1.2-5 1.2.2.5 WASTE PROCESSING SYSTEM 1.2-5 1.2.2.6 STEAM AND POWER CONVERSION SYSTEM 1.2-5 1.2.2.7 PLANT ELECTRICAL SYSTEM 1.2-6 1.2.2.8 COOLING WATER 1.2-7 1.2.2.9 COMPONENT COOLING SYSTEM 1.2-7 1.2.2.10 CHEMICAL AND VOLUME CONTROL SYSTEM 1.2-7 1.2.2.11 SAMPLING AND WATER QUALITY SYSTEM 1.2-8 1.2.2.12 VENTILATION 1.2-9 1.2.2.13 FIRE PROTECTION SYSTEM 1.2-9 1.2.2.14 COMPRESSED AIR SYSTEMS 1.2-9 1.2.2.15 ENGINEERED SAFETY FEATURES 1.2-9 1.2.2.16 SHARED FACILITIES AND EQUIPMENT 1.2-10 1.2.3 GENERAL ARRANGEMENT OF MAJOR STRUCTURES AND EQUIPMENT 1.2-13 Table of Contents 1-i

WATTS BAR TABLE OF CONTENTS Section Title Page 1.3 COMPARISON TABLES 1.3-1 1.3.1 COMPARISONS WITH SIMILAR FACILITY DESIGNS 1.3-1 1.3.2 COMPARISON OF FINAL AND PRELIMINARY DESIGNS 1.3-1 1.4 IDENTIFICATION OF AGENTS AND CONTRACTORS 1.4-1 1.5 REQUIREMENTS FOR FURTHER TECHNICAL INFORMATION 1.5-1 1.5.1 17 X 17 FUEL ASSEMBLY 1.5-1 1.5.1.1 ROD CLUSTER CONTROL SPIDER TESTS 1.5-1 1.5.1.2 GRID TESTS 1.5-1 1.5.1.3 FUEL ASSEMBLY STRUCTURAL TESTS 1.5-1 1.5.1.4 GUIDE TUBE TESTS 1.5-2 1.5.1.5 PROTOTYPE ASSEMBLY TESTS 1.5-2 1.5.2 HEAT TRANSFER TESTS (17 X 17) 1.5-2 1.5.2.1 17 X 17 LOCA HEAT TRANSFER TESTS 1.5-2 1.5.2.2 DEPARTURE FROM NUCLEATE BOILING (DNB) 1.5-2 1.6 MATERIAL INCORPORATED BY REFERENCE 1.6-1 1.7 ELECTRICAL, INSTRUMENTATION, AND CONTROL DRAWINGS 1.7-1 1.8 TECHNICAL QUALIFICATION OF APPLICANT 1.8-1 1.9 NUCLEAR PERFORMANCE PLAN 1.9-1 1.9.1 CORRECTIVE ACTION PROGRAMS 1.9-1 1.9.1.1 CABLE ISSUES 1.9-1 1.9.1.2 CABLE TRAY AND CABLE TRAY SUPPORTS 1.9-2 1.9.1.3 DESIGN BASELINE AND VERIFICATION PROGRAM (DBVP) 1.9-2 1.9.1.4 ELECTRICAL CONDUIT AND CONDUIT SUPPORT 1.9-2 1.9.1.5 ELECTRICAL ISSUES 1.9-2 1.9.1.6 EQUIPMENT SEISMIC QUALIFICATION 1.9-3 1.9.1.7 FIRE PROTECTION 1.9-3 1.9.1.8 HANGER AND ANALYSIS UPDATE PROGRAM (HAAUP) 1.9-3 1.9.1.9 HEAT CODE TRACEABILITY 1.9-3 1.9.1.10 HEATING, VENTILATION, AND AIR CONDITIONING (HVAC) DUCT SUPPORTS 1.9-3 1-ii Table of Contents

WATTS BAR TABLE OF CONTENTS Section Title Page 1.9.1.11 INSTRUMENT LINES 1.9-4 1.9.1.12 PRESTART TEST PROGRAM 1.9-4 1.9.1.13 QA RECORDS 1.9-4 1.9.1.14 Q-LIST 1.9-4 1.9.1.15 REPLACEMENT ITEMS PROGRAM (RIP-CAP) 1.9-4 1.9.1.16 SEISMIC ANALYSIS 1.9-5 1.9.1.17 VENDOR INFORMATION 1.9-5 1.9.1.18 WELDING 1.9-5 1.9.2 SPECIAL PROGRAMS (SPS) 1.9-5 1.9.2.1 CONCRETE QUALITY PROGRAM 1.9-6 1.9.2.2 CONTAINMENT COOLING 1.9-6 1.9.2.3 DETAILED CONTROL ROOM DESIGN REVIEW 1.9-6 1.9.2.4 ENVIRONMENTAL QUALIFICATION PROGRAM 1.9-6 1.9.2.5 MASTER FUSE LIST 1.9-6 1.9.2.6 MECHANICAL EQUIPMENT QUALIFICATION 1.9-6 1.9.2.7 MICROBIOLOGICALLY INDUCED CORROSION (MIC) 1.9-7 1.9.2.8 MODERATE ENERGY LINE BREAK FLOODING (MELB) 1.9-7 1.9.2.9 RADIATION MONITORING SYSTEM 1.9-7 1.9.2.10 SOIL LIQUEFACTION 1.9-7 1.9.2.11 USE-AS-IS CAQS 1.9-7 1.

9.3 REFERENCES

1.9-7 2.0 SITE CHARACTERISTICS 2.1 GEOGRAPHY AND DEMOGRAPHY 2.1-1 2.1.1 SITE LOCATION AND DESCRIPTION 2.1-1 2.1.1.1 SPECIFICATION OF LOCATION 2.1-1 2.1.1.2 SITE AREA MAP 2.1-1 2.1.1.3 BOUNDARIES FOR ESTABLISHING EFFLUENT LIMITS 2.1-2 2.1.2 EXCLUSION AREA AUTHORITY AND CONTROL 2.1-2 2.1.2.1 AUTHORITY 2.1-2 2.1.2.2 CONTROL OF ACTIVITIES UNRELATED TO PLANT OPERATION 2.1-2 2.1.2.3 ARRANGEMENTS FOR TRAFFIC CONTROL 2.1-2 2.1.2.4 ABANDONMENT OR RELOCATION OF ROADS 2.1-2 2.1.3 POPULATION DISTRIBUTION 2.1-2 Table of Contents 1-iii

WATTS BAR TABLE OF CONTENTS Section Title Page 2.1.3.1 POPULATION WITHIN 10 MILES 2.1-3 2.1.3.2 POPULATION BETWEEN 10 AND 50 MILES 2.1-3 2.1.3.3 TRANSIENT POPULATION 2.1-4 2.1.3.4 LOW POPULATION ZONE 2.1-4 2.1.3.5 POPULATION CENTER 2.1-4 2.1.3.6 POPULATION DENSITY 2.1-4 2.2 NEARBY INDUSTRIAL, TRANSPORTATION, AND MILITARY FACILITIES 2.2-1 2.2.1 LOCATION AND ROUTE 2.2-1 2.

2.2 DESCRIPTION

S 2.2-1 2.2.

2.1 DESCRIPTION

OF FACILITIES 2.2-1 2.2.

2.2 DESCRIPTION

OF PRODUCTS AND MATERIALS 2.2-1 2.2.2.3 PIPELINES 2.2-1 2.2.2.4 WATERWAYS 2.2-1 2.2.2.5 AIRPORTS 2.2-2 2.2.2.6 PROJECTIONS OF INDUSTRIAL GROWTH 2.2-2 2.2.3 EVALUATION OF POTENTIAL ACCIDENTS 2.2-2 2.2.

3.1 REFERENCES

2.2-3 2.3 METEOROLOGY 2.3-1 2.3.1 REGIONAL CLIMATE 2.3-1 2.3.1.1 DATA SOURCES 2.3-1 2.3.1.2 GENERAL CLIMATE 2.3-1 2.3.1.3 SEVERE WEATHER 2.3-2 2.3.2 LOCAL METEOROLOGY 2.3-6 2.3.2.1 DATA SOURCES 2.3-6 2.3.2.2 NORMAL AND EXTREME VALUES OF METEOROLOGICAL PARAMETERS 2.3-6 2.3.2.3 POTENTIAL INFLUENCE OF THE PLANT AND ITS FACILITIES ON LOCAL METEOROLOGY 2.3-9 2.3.2.4 LOCAL METEOROLOGICAL CONDITIONS FOR DESIGN AND OPERATING BASES 2.3-9 2.3.3 ONSITE METEOROLOGICAL MEASUREMENTS PROGRAM 2.3-9 2.3.3.1 PREOPERATIONAL PROGRAM 2.3-9 2.3.3.2 OPERATIONAL METEOROLOGICAL PROGRAM 2.3-12 1-iv Table of Contents

WATTS BAR TABLE OF CONTENTS Section Title Page 2.3.3.3 ONSITE DATA SUMMARIES OF PARAMETERS FOR DISPERSION METEOROLOGY 2.3-13 2.3.4 SHORT-TERM (ACCIDENT) DIFFUSION ESTIMATES 2.3-15 2.3.4.1 OBJECTIVE 2.3-15 2.3.4.2 CALCULATION RESULTS 2.3-17 2.3.5 LONG-TERM (ROUTINE) DIFFUSION ESTIMATES 2.3-18 2.4 HYDROLOGIC ENGINEERING 2.4-1 2.4.1 HYDROLOGICAL DESCRIPTION 2.4-1 2.4.1.1 SITES AND FACILITIES 2.4-1 2.4.1.2 HYDROSPHERE 2.4-2 2.4.2 FLOODS 2.4-6 2.4.2.1 FLOOD HISTORY 2.4-6 2.4.2.2 FLOOD DESIGN CONSIDERATIONS 2.4-7 2.4.2.3 EFFECTS OF LOCAL INTENSE PRECIPITATION 2.4-8 2.4.3 PROBABLE MAXIMUM FLOOD (PMF) ON STREAMS AND RIVERS 2.4-11 2.4.3.1 PROBABLE MAXIMUM PRECIPITATION (PMP) 2.4-12 2.4.3.2 PRECIPITATION LOSSES 2.4-13 2.4.3.3 RUNOFF AND STREAM COURSE MODEL 2.4-13 2.4.3.4 PROBABLE MAXIMUM FLOOD FLOW 2.4-17 2.4.3.5 WATER LEVEL DETERMINATIONS 2.4-18 2.4.3.6 COINCIDENT WIND WAVE ACTIVITY 2.4-18 2.4.4 POTENTIAL DAM FAILURES, SEISMICALLY INDUCED 2.4-21 2.4.4.1 DAM FAILURE PERMUTATIONS 2.4-21 2.4.4.2 UNSTEADY FLOW ANALYSIS OF POTENTIAL DAM FAILURES 2.4-33 2.4.4.3 WATER LEVEL AT PLANT SITE 2.4-33 2.4.5 PROBABLE MAXIMUM SURGE AND SEICHE FLOODING 2.4-33 2.4.6 PROBABLE MAXIMUM TSUNAMI FLOODING 2.4-33 2.4.7 ICE EFFECTS 2.4-33 2.4.8 COOLING WATER CANALS AND RESERVOIRS 2.4-35 2.4.9 CHANNEL DIVERSIONS 2.4-35 2.4.10 FLOODING PROTECTION REQUIREMENTS 2.4-35 2.4.11 LOW WATER CONSIDERATIONS 2.4-36 2.4.11.1 LOW FLOW IN RIVERS AND STREAMS 2.4-36 Table of Contents 1-v

WATTS BAR TABLE OF CONTENTS Section Title Page 2.4.11.2 LOW WATER RESULTING FROM SURGES, SEICHES, OR TSUNAMI 2.4-36 2.4.11.3 HISTORICAL LOW WATER 2.4-36 2.4.11.4 FUTURE CONTROL 2.4-37 2.4.11.5 PLANT REQUIREMENTS 2.4-37 2.4.12 DISPERSION, DILUTION, AND TRAVEL TIMES OF ACCIDENTAL RELEASES OF LIQUID EFFLUENTS 2.4-38 2.4.12.1 RADIOACTIVE LIQUID WASTES 2.4-38 2.4.12.2 ACCIDENTAL SLUG RELEASES TO SURFACE WATER 2.4-38 2.4.12.3 EFFECTS ON GROUND WATER 2.4-40 2.4.13 GROUNDWATER 2.4-41 2.4.

13.1 DESCRIPTION

AND ON-SITE USE 2.4-41 2.4.13.2 SOURCES 2.4-42 2.4.13.3 ACCIDENT EFFECTS 2.4-43 2.4.13.4 MONITORING AND SAFEGUARD REQUIREMENTS 2.4-44 2.4.13.5 DESIGN BASIS FOR SUBSURFACE HYDROSTATIC LOADING 2.4-44 2.4.14 FLOODING PROTECTION REQUIREMENTS 2.4-44 2.4.

14.1 INTRODUCTION

2.4-45 2.4.14.2 PLANT OPERATION DURING FLOODS ABOVE GRADE 2.4-46 2.4.14.3 WARNING SCHEME 2.4-48 2.4.14.4 PREPARATION FOR FLOOD MODE 2.4-48 2.4.14.5 EQUIPMENT 2.4-49 2.4.14.6 SUPPLIES 2.4-51 2.4.14.7 PLANT RECOVERY 2.4-51 2.4.14.8 WARNING PLAN 2.4-51 2.4.14.9 BASIS FOR FLOOD PROTECTION PLAN IN RAINFALL FLOODS 2.4-52 2.4.14.10 BASIS FOR FLOOD PROTECTION PLAN IN SEISMIC-CAUSED DAM FAILURES 2.4-57 2.4.14.11 SPECIAL CONDITION ALLOWANCE 2.4-58 2.5 GEOLOGY, SEISMOLOGY, AND GEOTECHNICAL ENGINEERING

SUMMARY

OF FOUNDATION CONDITIONS 2.5-1 2.5.1 BASIC GEOLOGY AND SEISMIC INFORMATION 2.5-2 2.5.1.1 REGIONAL GEOLOGY 2.5-3 2.5.1.2 SITE GEOLOGY 2.5-26 2.5.2 VIBRATORY GROUND MOTION 2.5-34 1-vi Table of Contents

WATTS BAR TABLE OF CONTENTS Section Title Page 2.5.2.1 SEISMICITY 2.5-34 2.5.2.2 GEOLOGIC STRUCTURES AND TECTONIC ACTIVITY 2.5-41 2.5.2.3 CORRELATION OF EARTHQUAKE ACTIVITY WITH GEOLOGIC STRUCTURES TO TECTONIC PROVINCES 2.5-42 2.5.2.4 MAXIMUM EARTHQUAKE POTENTIAL 2.5-42 2.5.2.5 SEISMIC WAVE TRANSMISSION CHARACTERISTICS OF THE SITE 2.5-44 2.5.2.6 SAFE SHUTDOWN EARTHQUAKE 2.5-45 2.5.2.7 OPERATING BASIS EARTHQUAKE 2.5-45 2.5.3 SURFACE FAULTING 2.5-45 2.5.3.1 GEOLOGIC CONDITIONS OF THE SITE 2.5-45 2.5.3.2 EVIDENCE OF FAULT OFFSET 2.5-45 2.5.3.3 EARTHQUAKES ASSOCIATED WITH CAPABLE FAULTS 2.5-54 2.5.3.4 INVESTIGATIONS OF CAPABLE FAULTS 2.5-54 2.5.3.5 CORRELATION OF EPICENTERS WITH CAPABLE FAULTS 2.5-56 2.5.

3.6 DESCRIPTION

OF CAPABLE FAULTS 2.5-56 2.5.3.7 ZONE REQUIRING DETAILED FAULTING INVESTIGATION 2.5-56 2.5.3.8 RESULTS OF FAULTING INVESTIGATIONS 2.5-56 2.5.4 STABILITY OF SUBSURFACE MATERIALS 2.5-56 2.5.4.1 GEOLOGIC FEATURES 2.5-56 2.5.4.2 PROPERTIES OF SUBSURFACE MATERIALS 2.5-57 2.5.4.3 EXPLORATION 2.5-89 2.5.4.4 GEOPHYSICAL SURVEYS 2.5-90 2.5.4.5 EXCAVATIONS AND BACKFILL 2.5-93 2.5.4.6 GROUNDWATER CONDITIONS 2.5-101 2.5.4.7 RESPONSE OF SOIL AND ROCK TO DYNAMIC LOADING 2.5-102 2.5.4.8 LIQUEFACTION POTENTIAL 2.5-103 2.5.4.9 EARTHQUAKE DESIGN BASIS 2.5-113 2.5.4.10 STATIC ANALYSIS 2.5-113 2.5.4.11 SAFETY-RELATED CRITERIA FOR FOUNDATIONS 2.5-115 2.5.4.12 TECHNIQUES TO IMPROVE SUBSURFACE CONDITIONS 2.5-115 2.5.4.13 CONSTRUCTION NOTES 2.5-118 2.5.5 STABILITY OF SLOPES 2.5-118 2.5.5.1 SLOPE CHARACTERISTICS 2.5-118 2.5.5.2 DESIGN CRITERIA AND ANALYSIS 2.5-120 Table of Contents 1-vii

WATTS BAR TABLE OF CONTENTS Section Title Page 2.5.5.3 LOGS OF BORINGS 2.5-127 2.5.5.4 COMPACTION SPECIFICATIONS 2.5-127 2.5.6 EMBANKMENTS 2.5-127 3.0 DESIGN OF STRUCTURES, COMPONENTS, EQUIPMENT, AND SYSTEMS 3.1 CONFORMANCE WITH NRC GENERAL DESIGN CRITERIA 3.1-1 3.

1.1 INTRODUCTION

3.1-1 3.1.2 WBNP CONFORMANCE WITH GDCS 3.1-1 3.1.2.1 OVERALL REQUIREMENTS 3.1-1 3.1.2.2 PROTECTION BY MULTIPLE FISSION PRODUCT BARRIERS 3.1-5 3.1.2.3 PROTECTION AND REACTIVITY CONTROL SYSTEMS 3.1-12 3.1.2.4 FLUID SYSTEMS 3.1-17 3.1.2.5 REACTOR CONTAINMENT 3.1-30 3.1.2.6 FUEL AND RADIOACTIVITY CONTROL 3.1-35 3.2 CLASSIFICATION OF STRUCTURES, SYSTEMS, AND COMPONENTS 3.2-1 3.2.1 SEISMIC CLASSIFICATIONS 3.2-1 3.2.2 SYSTEM QUALITY GROUP CLASSIFICATION 3.2-1 3.2.2.1 CLASS A 3.2-2 3.2.2.2 CLASS B 3.2-2 3.2.2.3 CLASS C 3.2-2 3.2.2.4 CLASS D 3.2-2 3.2.2.5 RELATIONSHIP OF APPLICABLE CODES TO SAFETY CLASSIFICATION FOR MECHANICAL COMPONENTS 3.2-3 3.2.2.6 NONNUCLEAR SAFETY CLASS (NNS) 3.2-3 3.2.2.7 HEATING, VENTILATION AND AIR CONDITIONING (HVAC) SAFETY CLASSIFICATION 3.2-3 3.2.3 CODE CASES AND CODE EDITIONS AND ADDENDA 3.2-3 3.2.3.1 TVA DESIGN AND FABRICATION 3.2-3 3.2.3.2 PURCHASED MATERIALS AND COMPONENTS 3.2-4 3.3 WIND AND TORNADO LOADING 3.3-1 3.3.1 WIND LOADINGS 3.3-1 3.3.1.1 DESIGN WIND VELOCITY 3.3-1 3.3.1.2 DETERMINATION OF APPLIED FORCE 3.3-1 1-viii Table of Contents

WATTS BAR TABLE OF CONTENTS Section Title Page 3.3.2 TORNADO LOADINGS 3.3-1 3.3.2.1 APPLICABLE DESIGN PARAMETERS 3.3-1 3.3.2.2 DETERMINATION OF FORCES ON STRUCTURES 3.3-2 3.3.2.3 ABILITY OF CATEGORY I STRUCTURES TO PERFORM DESPITE FAILURE OF STRUCTURES NOT DESIGNED FOR TORNADO LOADS 3.3-3 3.4 WATER LEVEL (FLOOD) DESIGN 3.4-1 3.4.1 FLOOD PROTECTION 3.4-1 3.4.2 ANALYSIS PROCEDURE 3.4-1 3.5 MISSILE PROTECTION 3.5-1 3.5.1 MISSILE SELECTION AND DESCRIPTION 3.5-2 3.5.1.1 INTERNALLY GENERATED MISSILES (OUTSIDE CONTAINMENT) 3.5-2 3.5.1.2 INTERNALLY GENERATED MISSILES (INSIDE CONTAINMENT) 3.5-5 3.5.1.3 TURBINE MISSILES 3.5-10 3.5.1.4 MISSILES GENERATED BY NATURAL PHENOMENA 3.5-23 3.5.1.5 MISSILES GENERATED BY EVENTS NEAR THE SITE. 3.5-23 3.5.1.6 AIRCRAFT HAZARDS 3.5-24 3.5.2 SYSTEMS TO BE PROTECTED 3.5-24 3.5.3 BARRIER DESIGN PROCEDURES 3.5-25 3.5.3.1 ADDITIONAL DIESEL GENERATOR BUILDING (AND OTHER CATEGORY I STRUCTURES ADDED AFTER JULY 1979) 3.5-28 3.5A ESTIMATES OF VELOCITIES OF JET PROPELLED MISSILES 3.5A-1 3.6 PROTECTION AGAINST DYNAMIC EFFECTS ASSOCIATED WITH THE POSTULATED RUPTURE OF PIPING 3.6-1 3.6A PROTECTION AGAINST DYNAMIC EFFECTS ASSOCIATED WITH THE POSTULATED RUPTURE OF PIPING (EXCLUDING REACTOR COOLANT SYSTEM PIPING) 3.6-1 3.6A.1 POSTULATED PIPING FAILURES IN FLUID SYSTEMS INSIDE AND OUTSIDE CONTAINMENT 3.6-8 3.6A.1.1 DESIGN BASES 3.6-8 3.6A.

1.2 DESCRIPTION

OF PIPING SYSTEM ARRANGEMENT 3.6-10 Table of Contents 1-ix

WATTS BAR TABLE OF CONTENTS Section Title Page 3.6A.1.3 SAFETY EVALUATION 3.6-10 3.6A.2 DETERMINATION OF BREAK LOCATIONS AND DYNAMIC EFFECTS ASSOCIATED WITH THE POSTULATED RUPTURE OF PIPING 3.6-11 3.6A.2.1 CRITERIA USED TO DEFINE BREAK AND CRACK LOCATION AND CONFIGURATION 3.6-11 3.6A.2.2 ANALYTICAL METHODS TO DEFINE FORCING FUNCTIONS AND RESPONSE MODELS 3.6-17 3.6A.2.3 DYNAMIC ANALYSIS METHODS TO VERIFY INTEGRITY AND OPERABILITY 3.6-21 3.6A.2.4 GUARD PIPE ASSEMBLY DESIGN CRITERIA 3.6-24 3.6A.2.5

SUMMARY

OF DYNAMIC ANALYSIS RESULTS 3.6-25 3.6B PROTECTION AGAINST DYNAMIC EFFECTS ASSOCIATED WITH THE POSTULATED RUPTURE OF PIPING 3.6-26 3.6B.1 BREAK LOCATIONS AND DYNAMIC EFFECTS ASSOCIATED WITH POSTULATED PRIMARY LOOP PIPE RUPTURE 3.6-26 3.6B.2 ANALYTICAL METHODS TO DEFINE FORCING FUNCTION AND RESPONSE MODELS 3.6-27 3.6B.3 DYNAMIC ANALYSIS OF THE REACTOR COOLANT LOOP PIPING EQUIPMENT SUPPORTS AND PIPE WHIP RESTRAINTS 3.6-29 3.7 SEISMIC DESIGN 3.7-1 3.7.1 SEISMIC INPUT 3.7-2 3.7.1.1 GROUND RESPONSE SPECTRA 3.7-2 3.7.1.2 DESIGN TIME HISTORIES 3.7-2 3.7.1.3 CRITICAL DAMPING VALUES 3.7-3 3.7.1.4 SUPPORTING MEDIA FOR SEISMIC CATEGORY I STRUCTURES 3.7-3 3.7.2 SEISMIC SYSTEM ANALYSIS 3.7-3 3.7.2.1 SEISMIC ANALYSIS METHODS 3.7-4 3.7.2.2 NATURAL FREQUENCIES AND RESPONSE LOADS FOR NSSS 3.7-21 3.7.2.3 PROCEDURES USED FOR MODELING 3.7-22 3.7.2.4 SOIL/STRUCTURE INTERACTION 3.7-23 3.7.2.5 DEVELOPMENT OF FLOOR RESPONSE SPECTRA 3.7-23 3.7.2.6 THREE COMPONENTS OF EARTHQUAKE MOTION 3.7-25 3.7.2.7 COMBINATION OF MODAL RESPONSES 3.7-26 1-x Table of Contents

WATTS BAR TABLE OF CONTENTS Section Title Page 3.7.2.8 INTERACTION OF NON-CATEGORY I STRUCTURES WITH SEISMIC CATEGORY I STRUCTURES 3.7-28 3.7.2.9 EFFECTS OF PARAMETER VARIATIONS ON FLOOR RESPONSE SPECTRA 3.7-29 3.7.2.10 USE OF CONSTANT VERTICAL LOAD FACTORS 3.7-29 3.7.2.11 METHODS USED TO ACCOUNT FOR TORSIONAL EFFECTS 3.7-29 3.7.2.12 COMPARISON OF RESPONSES - SET A VERSUS SET B 3.7-30 3.7.2.13 METHODS FOR SEISMIC ANALYSIS OF DAMS 3.7-30 3.7.2.14 DETERMINATION OF CATEGORY I STRUCTURE OVERTURNING MOMENTS 3.7-30 3.7.2.15 ANALYSIS PROCEDURE FOR DAMPING 3.7-31 3.7.3 SEISMIC SUBSYSTEM ANALYSIS 3.7-31 3.7.3.1 SEISMIC ANALYSIS METHODS FOR OTHER THAN NSSS 3.7-31 3.7.3.2 DETERMINATION OF NUMBER OF EARTHQUAKE CYCLES 3.7-32 3.7.3.3 PROCEDURE USED FOR MODELING 3.7-32 3.7.3.4 BASIS FOR SELECTION OF FREQUENCIES 3.7-34 3.7.3.5 USE OF EQUIVALENT STATIC LOAD METHOD OF ANALYSIS 3.7-35 3.7.3.6 THREE COMPONENTS OF EARTHQUAKE MOTION 3.7-35 3.7.3.7 COMBINATION OF MODAL RESPONSES 3.7-36 3.7.3.8 ANALYTICAL PROCEDURES FOR PIPING OTHER THAN NSSS 3.7-37 3.7.3.9 MULTIPLE SUPPORTED EQUIPMENT AND COMPONENTS WITH DISTINCT INPUTS 3.7-44 3.7.3.10 USE OF CONSTANT VERTICAL LOAD FACTORS 3.7-45 3.7.3.11 TORSIONAL EFFECTS OF ECCENTRIC MASSES 3.7-45 3.7.3.12 BURIED SEISMIC CATEGORY I PIPING SYSTEMS 3.7-45 3.7.3.13 INTERACTION OF OTHER PIPING WITH SEISMIC CATEGORY I PIPING 3.7-51 3.7.3.14 SEISMIC ANALYSES FOR FUEL ELEMENTS, CONTROL ROD ASSEMBLIES, CONTROL ROD DRIVES, AND REACTOR INTERNALS 3.7-51 3.7.3.15 ANALYSIS PROCEDURE FOR DAMPING 3.7-53 3.7.3.16 SEISMIC ANALYSIS AND QUALIFICATION OF CATEGORY I EQUIPMENT OTHER THAN NSSS 3.7-53 3.7.3.17 SEISMIC ANALYSIS AND DESIGN OF HVAC DUCT AND DUCT SUPPORT SYSTEMS 3.7-56 3.7.3.18 SEISMIC QUALIFICATION OF MAIN CONTROL ROOM SUSPENDED CEILING AND AIR DELIVERY COMPONENTS 3.7-60 Table of Contents 1-xi

WATTS BAR TABLE OF CONTENTS Section Title Page 3.7.4 SEISMIC INSTRUMENTATION PROGRAM 3.7-61 3.7.4.1 COMPARISON WITH REGULATORY GUIDE 1.12 3.7-61 3.7.4.2 LOCATION AND DESCRIPTION OF INSTRUMENTATION 3.7-61 3.7.4.3 CONTROL ROOM OPERATOR NOTIFICATION 3.7-63 3.7.4.4 CONTROLLED SHUTDOWN LOGIC 3.7-64 3.7.4.5 COMPARISON OF MEASURED AND PREDICTED RESPONSES 3.7-65 3.8 DESIGN OF CATEGORY I STRUCTURES 3.8.1 CONCRETE SHIELD BUILDING 3.8.1-1 3.8.

1.1 DESCRIPTION

OF THE SHIELD BUILDING 3.8.1-1 3.8.1.1.1 EQUIPMENT HATCH DOORS AND SLEEVES 3.8.1-2 3.8.1.2 APPLICABLE CODES, STANDARDS, AND SPECIFICATIONS 3.8.1-3 3.8.1.3 LOADS AND LOADING COMBINATIONS 3.8.1-5 3.8.1.4 DESIGN AND ANALYSIS PROCEDURES 3.8.1-7 3.8.1.5 STRUCTURAL ACCEPTANCE CRITERIA 3.8.1-10 3.8.1.6 MATERIALS, QUALITY CONTROL AND SPECIAL CONSTRUCTION TECHNIQUES 3.8.1-11 3.8.1.6.1 MATERIALS 3.8.1-11 3.8.1.6.2 QUALITY CONTROL 3.8.1-11 3.8.1.6.3 CONSTRUCTION TECHNIQUES (HISTORICAL INFORMATION) 3.8.1-12 3.8.1.7 TESTING AND INSERVICE SURVEILLANCE REQUIREMENTS 3.8.1-13 3.8.2 STEEL CONTAINMENT SYSTEM 3.8.2-1 3.8.

2.1 DESCRIPTION

OF THE CONTAINMENT AND PENETRATIONS 3.8.2-1 3.8.2.

1.1 DESCRIPTION

OF THE CONTAINMENT 3.8.2-1 3.8.2.

1.2 DESCRIPTION

OF PENETRATIONS 3.8.2-1 3.8.2.2 APPLICABLE CODES, STANDARDS AND SPECIFICATIONS 3.8.2-3 3.8.2.2.1 CODES 3.8.2-3 3.8.2.2.2 DESIGN SPECIFICATION

SUMMARY

3.8.2-4 3.8.2.2.3 NRC REGULATORY GUIDES 3.8.2-6 3.8.2.3 LOADS AND LOADING COMBINATIONS 3.8.2-7 3.8.2.3.1 DESIGN LOADS 3.8.2-7 3.8.2.3.2 LOADING CONDITIONS 3.8.2-9 3.8.2.4 DESIGN AND ANALYSIS PROCEDURES 3.8.2-12 1-xii Table of Contents

WATTS BAR TABLE OF CONTENTS Section Title Page 3.8.2.

4.1 INTRODUCTION

3.8.2-12 3.8.2.4.2 STATIC STRESS ANALYSIS 3.8.2-12 3.8.2.4.3 DYNAMIC SEISMIC ANALYSIS 3.8.2-13 3.8.2.4.4 NON-AXISYMMETRIC PRESSURE LOADING ANALYSIS 3.8.2-13 3.8.2.4.5 THERMAL ANALYSIS 3.8.2-14 3.8.2.4.6 PENETRATIONS ANALYSIS 3.8.2-15 3.8.2.4.7 INTERACTION OF CONTAINMENT AND ATTACHED EQUIPMENT 3.8.2-17 3.8.2.4.8 ANCHORAGE 3.8.2-17 3.8.2.5 STRUCTURAL ACCEPTANCE CRITERIA 3.8.2-18 3.8.2.5.1 MARGIN OF SAFETY 3.8.2-18 3.8.2.6 MATERIALS, QUALITY CONTROL, AND SPECIAL CONSTRUCTION TECHNIQUES 3.8.2-19 3.8.2.6.1 MATERIALS - GENERAL 3.8.2-19 3.8.2.6.2 CORROSION PROTECTION 3.8.2-22 3.8.2.6.3 PROTECTIVE COATINGS 3.8.2-24 3.8.2.6.4 TOLERANCES 3.8.2-24 3.8.2.6.5 VESSEL MATERIAL INSPECTION AND TEST 3.8.2-25 3.8.2.6.6 IMPACT TESTING 3.8.2-25 3.8.2.6.7 POST-WELD HEAT TREATMENT 3.8.2-25 3.8.2.6.8 WELDING 3.8.2-25 3.8.2.7 TESTING AND INSERVICE INSPECTION REQUIREMENTS 3.8.2-26 3.8.2.7.1 BOTTOM LINER PLATES TEST - HISTORICAL INFORMATION 3.8.2-26 3.8.2.7.2 VERTICAL WALL AND DOME TESTS -

HISTORICAL INFORMATION 3.8.2-26 3.8.2.7.3 SOAP BUBBLE TESTS - HISTORICAL INFORMATION 3.8.2-26 3.8.2.7.4 OVERPRESSURE TESTS - HISTORICAL INFORMATION 3.8.2-26 3.8.2.7.5 LEAKAGE RATE TEST - HISTORICAL INFORMATION 3.8.2-26 3.8.2.7.6 OPERATIONAL TESTING - HISTORICAL INFORMATION 3.8.2-27 3.8.2.7.7 LEAK TESTING AIRLOCKS - HISTORICAL INFORMATION 3.8.2-27 3.8.2.7.8 PENETRATION TESTS - HISTORICAL INFORMATION 3.8.2-27 3.8.2.7.9 INSERVICE INSPECTION REQUIREMENTS 3.8.2-27 3.8.3 CONCRETE INTERIOR STRUCTURE 3.8.3-1 3.8.

3.1 DESCRIPTION

OF THE INTERIOR STRUCTURE 3.8.3-1 Table of Contents 1-xiii

WATTS BAR TABLE OF CONTENTS Section Title Page 3.8.3.2 APPLICABLE CODES, STANDARDS AND SPECIFICATIONS 3.8.3-7 3.8.3.3 LOADS AND LOADING COMBINATIONS 3.8.3-13 3.8.3.4 DESIGN AND ANALYSIS PROCEDURES 3.8.3-16 3.8.3.5 STRUCTURAL ACCEPTANCE CRITERIA 3.8.3-31 3.8.3.6 MATERIALS, QUALITY CONTROL AND SPECIAL CONSTRUCTION TECHNIQUES 3.8.3-34 3.8.3.7 TESTING AND INSERVICE SURVEILLANCE REQUIREMENTS 3.8.3-38 3.8.3.8 ENVIRONMENTAL EFFECTS 3.8.3-38 3.8.4 OTHER CATEGORY I STRUCTURES 3.8.4-1 3.8.

4.1 DESCRIPTION

OF THE STRUCTURES 3.8.4-1 3.8.4.1.1 AUXILIARY-CONTROL BUILDING 3.8.4-1 3.8.4.2 APPLICABLE CODES, STANDARDS, AND SPECIFICATIONS 3.8.4-17 3.8.4.3 LOADS AND LOADING COMBINATIONS 3.8.4-21 3.8.4.4 DESIGN AND ANALYSIS PROCEDURES 3.8.4-23 3.8.4.5 STRUCTURAL ACCEPTANCE CRITERIA 3.8.4-35 3.8.4.6 MATERIALS, QUALITY CONTROL, AND SPECIAL CONSTRUCTION TECHNIQUES 3.8.4-37 3.8.4.7 TESTING AND INSERVICE SURVEILLANCE REQUIREMENTS 3.8.4-39 3.8.5 FOUNDATIONS AND CONCRETE SUPPORTS 3.8.5-1 3.8.

5.1 DESCRIPTION

OF FOUNDATIONS AND SUPPORTS 3.8.5-1 3.8.5.1.1 PRIMARY CONTAINMENT 3.8.5-1 3.8.5.1.2 FOUNDATIONS OF OTHER CATEGORY I STRUCTURES 3.8.5-1 3.8.5.2 APPLICABLE CODES, STANDARDS, AND SPECIFICATIONS 3.8.5-3 3.8.5.3 LOADS AND LOADING COMBINATIONS 3.8.5-4 3.8.5.4 DESIGN AND ANALYSIS PROCEDURE 3.8.5-4 3.8.5.4.1 PRIMARY CONTAINMENT FOUNDATION 3.8.5-4 3.8.5.4.2 AUXILIARY-CONTROL BUILDING 3.8.5-4 3.8.5.4.3 INTAKE PUMPING STATION 3.8.5-4 3.8.5.4.4 SOIL-SUPPORTED STRUCTURES 3.8.5-5 3.8.5.4.5 PILE SUPPORTED STRUCTURES 3.8.5-5 3.8.5.5 STRUCTURAL ACCEPTANCE CRITERIA 3.8.5-5 3.8.5.5.1 PRIMARY CONTAINMENT FOUNDATION 3.8.5-5 3.8.5.5.2 FOUNDATIONS OF OTHER CATEGORY I STRUCTURES 3.8.5-5 1-xiv Table of Contents

WATTS BAR TABLE OF CONTENTS Section Title Page 3.8.5.6 MATERIALS, QUALITY CONTROL, AND SPECIAL CONSTRUCTION TECHNIQUES 3.8.5-6 3.8.5.6.1 MATERIALS 3.8.5-6 3.8.5.6.2 QUALITY CONTROL 3.8.5-7 3.8.5.6.3 SPECIAL CONSTRUCTION TECHNIQUES 3.8.5-7 3.8.6 CATEGORY I(L) CRANES 3.8.6-1 3.8.6.1 POLAR CRANES 3.8.6-1 3.8.6.

1.1 DESCRIPTION

3.8.6-1 3.8.6.1.2 APPLICABLE CODES, STANDARDS, AND SPECIFICATIONS 3.8.6-1 3.8.6.1.3 LOADS, LOADING COMBINATIONS, AND ALLOWABLE STRESSES 3.8.6-2 3.8.6.1.4 DESIGN AND ANALYSIS PROCEDURE 3.8.6-2 3.8.6.1.5 STRUCTURAL ACCEPTANCE CRITERIA 3.8.6-2 3.8.6.1.6 MATERIALS, QUALITY CONTROLS, AND SPECIAL CONSTRUCTION TECHNIQUES 3.8.6-3 3.8.6.1.7 TESTING AND IN-SERVICE SURVEILLANCE REQUIREMENTS 3.8.6-3 3.8.6.1.8 SAFETY FEATURES 3.8.6-3 3.8.6.2 AUXILIARY BUILDING CRANE 3.8.6-4 3.8.6.

2.1 DESCRIPTION

3.8.6-4 3.8.6.2.2 APPLICABLE CODES, STANDARDS, AND SPECIFICATIONS 3.8.6-5 3.8.6.2.3 LOADS, LOADING COMBINATIONS, AND ALLOWABLE STRESSES 3.8.6-5 3.8.6.2.4 DESIGN AND ANALYSIS PROCEDURE 3.8.6-5 3.8.6.2.5 STRUCTURAL ACCEPTANCE CRITERIA 3.8.6-6 3.8.6.2.6 MATERIALS, QUALITY CONTROLS, AND SPECIAL CONSTRUCTION TECHNIQUES 3.8.6-6 3.8.6.2.7 TESTING AND IN-SERVICE SURVEILLANCE REQUIREMENTS 3.8.6-7 3.8.6.2.8 SAFETY FEATURES 3.8.6-7 3.8A SHELL TEMPERATURE TRANSIENTS 3.8A-1 3.8B BUCKLING STRESS CRITERIA 3.8B-1 3.8B.1 INTRODUCTION 3.8B-1 3.8B.2 SHELLS STIFFENED WITH CIRCUMFERENTIAL STIFFENERS 3.8B-1 3.8B.2.1 CIRCULAR CYLINDRICAL SHELLS UNDER AXIAL COMPRESSION 3.8B-1 Table of Contents 1-xv

WATTS BAR TABLE OF CONTENTS Section Title Page 3.8B.2.2 CIRCULAR CYLINDRICAL SHELLS IN CIRCUMFERENTIAL COMPRESSION 3.8B-2 3.8B.2.3 CIRCULAR CYLINDRICAL SHELLS UNDER TORSION 3.8B-2 3.8B.2.4 CIRCULAR CYLINDRICAL SHELLS UNDER BENDING 3.8B-3 3.8B.2.5 CIRCULAR CYLINDRICAL SHELL UNDER COMBINED LOADS 3.8B-4 3.8B.3 SHELLS STIFFENED WITH A COMBINATION OF CIRCUMFERENTIAL AND VERTICAL STIFFENERS 3.8B-5 3.8B.4 SPHERICAL SHELLS 3.8B-7 3.8B.2.1 THE CRITICAL BUCKLING STRESS IN THE SPHERICAL DOME, EXCEPT FOR EXTERNAL PRESSURE, WAS DETERMINED BY THE FOLLOWING EQUATION: 3.8B-7 3.8B.2.2 SPHERICAL SHELL UNDER COMBINED LOADS 3.8B-8 3.8B.3 FACTOR OF SAFETY 3.8B-8 3.8C DOCUMENTATION OF CB&I COMPUTER PROGRAMS 3.8C-1 3.8C.1 INTRODUCTION 3.8C-1 3.8C.2 PROGRAM 1017-MODAL ANALYSIS OF STRUCTURES USING THE EIGEN VALUE TECHNIQUE 3.8C-1 3.8C.3 PROGRAM 1044-SEISMIC ANALYSIS OF VESSEL APPENDAGES 3.8C-1 3.8C.4 PROGRAM E1668-SPECTRAL ANALYSIS FOR ACCELERATION RECORDS DIGITIZED AT EQUAL INTERVALS 3.8C-3 3.8C.5 PROGRAM 1642-TRANSIENT PRESSURE BEAM ANALYSIS 3.8C-3 3.8C.6 PROGRAM E1623-POST PROCESSOR PROGRAM FOR PROGRAM E1374 3.8C-4 3.8C.7 PROGRAM E1374-SHELL DYNAMIC ANALYSIS 3.8C-5 3.8C.

7.1 INTRODUCTION

3.8C-5 3.8C.8 PROGRAM E1622-LOAD GENERATION PREPROCESSOR FOR PROGRAM E1374 3.8C-6 3.8C.9 PROGRAM E1624 SPCGEN-SPECTRAL CURVE GENERATION 3.8C-7 3.8C.10 PROGRAM 781, METHOD OF MODELING VERTICAL STIFFENERS 3.8C-7 3.8C.11 PROGRAM 119-CHECK OF FLANGE DESIGN 3.8C-7 3.8C.12 PROGRAM 772-NOZZLE REINFORCEMENT CHECK 3.8C-7 3.8C.13 PROGRAM 1027-WRC 107 STRESS INTENSITIES AT LOADED ATTACHMENTS FOR SPHERES OR CYLINDERS WITH ROUND OR SQUARE ATTACHMENT 3.8C-8 3.8C.14 PROGRAM 1036M-STRESS INTENSITIES IN JUMBO INSERT PLATES 3.8C-8 1-xvi Table of Contents

WATTS BAR TABLE OF CONTENTS Section Title Page 3.8D COMPUTER PROGRAMS FOR STRUCTURAL ANALYSIS 3.8D-1 3.8E CODES, LOAD DEFINITIONS AND LOAD COMBINATIONS FOR THE MODIFICATION AND EVALUATION OF EXISTING STRUCTURES AND FOR THE DESIGN OF NEW FEATURES ADDED TO EXISTING STRUCTURES AND THE DESIGN OF STRUCTURES INITIATED AFTER JULY 1979 3.8E-1 3.8E.1 APPLICATION CODES AND STANDARDS 3.8E-1 3.8E.2 LOAD DEFINITIONS 3.8E-1 3.8E.3 LOAD COMBINATIONS - CONCRETE 3.8E-3 3.8E.4 LOAD COMBINATIONS - STRUCTURAL STEEL 3.8E-5 3.9 MECHANICAL SYSTEMS AND COMPONENTS 3.9-1 3.9.1 GENERAL TOPIC FOR ANALYSIS OF SEISMIC CATEGORY I ASME CODE AND NON-CODE ITEMS 3.9-1 3.9.1.1 DESIGN TRANSIENTS 3.9-1 3.9.1.2 COMPUTER PROGRAMS USED IN ANALYSIS AND DESIGN 3.9-1 3.9.1.3 EXPERIMENTAL STRESS ANALYSIS 3.9-3 3.9.1.4 CONSIDERATION FOR THE EVALUATION OF THE FAULTED CONDITION 3.9-3 3.9.2 DYNAMIC TESTING AND ANALYSIS 3.9-4 3.9.2.1 PREOPERATIONAL VIBRATION AND DYNAMIC EFFECTS TESTING ON PIPING 3.9-4 3.9.2.2 SEISMIC QUALIFICATION TESTING OF SAFETY-RELATED MECHANICAL EQUIPMENT 3.9-6 3.9.2.3 DYNAMIC RESPONSE ANALYSIS OF REACTOR INTERNALS UNDER OPERATIONAL FLOW TRANSIENTS AND STEADY-STATE CONDITIONS 3.9-8 3.9.2.4 PREOPERATIONAL FLOW-INDUCED VIBRATION TESTING OF REACTOR INTERNALS 3.9-10 3.9.2.5 DYNAMIC SYSTEM ANALYSIS OF THE REACTOR INTERNALS UNDER FAULTED CONDITIONS 3.9-12 3.9.2.6 CORRELATIONS OF REACTOR INTERNALS VIBRATION TESTS WITH THE ANALYTICAL RESULTS 3.9-21 3.9.3 ASME CODE CLASS 1, 2 AND 3 COMPONENTS, COMPONENT SUPPORTS AND CORE SUPPORT STRUCTURES 3.9-22 3.9.3.1 LOADING COMBINATIONS, DESIGN TRANSIENTS, AND STRESS LIMITS 3.9-22 3.9.3.2 PUMPS AND VALVE OPERABILITY ASSURANCE 3.9-29 Table of Contents 1-xvii

WATTS BAR TABLE OF CONTENTS Section Title Page 3.9.3.3 DESIGN AND INSTALLATION DETAILS FOR MOUNTING OF PRESSURE RELIEF DEVICES 3.9-40 3.9.3.4 COMPONENT SUPPORTS 3.9-42 3.9.4 CONTROL ROD SYSTEM 3.9-47 3.9.4.1 DESCRIPTIVE INFORMATION OF CRDS 3.9-47 3.9.4.2 APPLICABLE CRDS DESIGN SPECIFICATIONS 3.9-47 3.9.4.3 DESIGN LOADINGS, STRESS LIMITS, AND ALLOWABLE DEFORMATIONS 3.9-47 3.9.4.4 CRDS PERFORMANCE ASSURANCE PROGRAM 3.9-47 3.9.5 REACTOR PRESSURE VESSEL INTERNALS 3.9-47 3.9.5.1 DESIGN ARRANGEMENTS 3.9-47 3.9.5.2 DESIGN LOADING CONDITIONS 3.9-48 3.9.5.3 DESIGN LOADING CATEGORIES 3.9-48 3.9.5.4 DESIGN CRITERIA BASIS 3.9-48 3.9.6 INSERVICE TESTING OF PUMPS AND VALVES 3.9-48 3.10 SEISMIC DESIGN OF CATEGORY I INSTRUMENTATION AND ELECTRICAL EQUIPMENT 3.10-1 3.10.1 SEISMIC QUALIFICATION CRITERIA 3.10-1 3.10.2 METHODS AND PROCEDURES FOR QUALIFYING ELECTRICAL EQUIPMENT AND INSTRUMENTATION 3.10-6 3.10.3 METHODS OF QUALIFYING TVA-DESIGNED SUPPORTS FOR ELECTRICAL EQUIPMENT INSTRUMENTATION AND CABLES 3.10-7 3.10.3.1 ELECTRICAL EQUIPMENT AND INSTRUMENTATION ASSEMBLIES 3.10-7 3.10.3.2 CABLE TRAYS AND SUPPORTS 3.10-7 3.10.3.3 CONDUIT AND SUPPORTS 3.10-8 3.10.3.4 CONDUIT BANKS 3.10-9 3.10.4 OPERATING LICENSE REVIEW 3.10-9 3.10.4.1 TVA SUPPLIED INSTRUMENTATION AND ELECTRICAL EQUIPMENT 3.10-9 3.11 ENVIRONMENTAL DESIGN OF MECHANICAL AND ELECTRICAL EQUIPMENT 3.11-1 3.11.1 EQUIPMENT IDENTIFICATION AND ENVIRONMENTAL CONDITIONS 3.11-1 3.11.1.1 IDENTIFICATION OF SAFETY SYSTEMS AND JUSTIFICATION 3.11-1 1-xviii Table of Contents

WATTS BAR TABLE OF CONTENTS Section Title Page 3.11.1.2 IDENTIFICATION OF EQUIPMENT IN HARSH ENVIRONMENTS 3.11-1 3.11.2 ENVIRONMENTAL CONDITIONS 3.11-2 3.11.2.1 HARSH ENVIRONMENT 3.11-2 3.11.2.2 MILD ENVIRONMENT 3.11-3 3.11.3 ELECTRICAL EQUIPMENT WITHIN THE SCOPE OF 10 CFR 50.49 3.11-3 3.11.4 QUALIFICATION TESTS AND ANALYSES 3.11-4 3.11.5 QUALIFICATION TEST RESULTS 3.11-4 3.11.6 LOSS OF HEATING, VENTILATING, AND AIR-CONDITIONING (HVAC) 3.11-4 3.11.7 ESTIMATED CHEMICAL AND RADIATION ENVIRONMENT 3.11-4 3.11.7.1 CHEMICAL SPRAY 3.11-4 3.11.7.2 RADIATION 3.11-5 3.12 CONTROL OF HEAVY LOADS 3.12-1 3.

12.1 INTRODUCTION

/LICECING BACKGROUND 3.12-1 3.12.2 SAFETY BASIS 3.12-1 3.12.3 SCOPE OF HEAVY LOAD HANDLING SYSTEM 3.12-1 3.12.4 CONTROL OF HEAVY LOADS PROGRAM 3.12-2 3.12.4.1 WBN COMMITMENTS IN RESPONSE TO NUREG-0612, SECTION 5.1.1 3.12-2 3.12.4.2 REACTOR PRESSURE VESSEL HEAD (RPVH) LIFTING PROCEDURES 3.12-4 3.12.5 SAFETY EVALUATION 3.12-6 4.0 REACTOR 4.1

SUMMARY

DESCRIPTION 4.1-1 4.2 MECHANICAL DESIGN 4.2-1 4.2.1 FUEL 4.2-2 4.2.1.1 DESIGN BASES 4.2-2 4.2.1.2 DESIGN DESCRIPTION 4.2-5 4.2.1.3 DESIGN EVALUATION 4.2-10 4.2.1.4 TESTS AND INSPECTIONS 4.2-19 4.2.2 REACTOR VESSEL INTERNALS 4.2-23 4.2.2.1 DESIGN BASES 4.2-23 Table of Contents 1-xix

WATTS BAR TABLE OF CONTENTS Section Title Page 4.2.

2.2 DESCRIPTION

AND DRAWINGS 4.2-23 4.2.2.3 DESIGN LOADING CONDITIONS 4.2-27 4.2.2.4 DESIGN LOADING CATEGORIES 4.2-28 4.2.2.5 DESIGN CRITERIA BASIS 4.2-29 4.2.3 REACTIVITY CONTROL SYSTEM 4.2-29 4.2.3.1 DESIGN BASES 4.2-29 4.2.3.2 DESIGN DESCRIPTION 4.2-32 4.2.3.3 DESIGN EVALUATION 4.2-42 4.2.3.4 TESTS, VERIFICATION, AND INSPECTIONS 4.2-51 4.2.3.5 INSTRUMENTATION APPLICATIONS 4.2-53 4.2.4 TRITIUM PRODUCING BURNABLE ABSORBER ROD - TRITIUM PRODUCTION CORE 4.2-54 4.3 NUCLEAR DESIGN 4.3-1 4.3.1 DESIGN BASES 4.3-1 4.3.1.1 FUEL BURNUP 4.3-2 4.3.1.2 NEGATIVE REACTIVITY FEEDBACKS (REACTIVITY COEFFICIENT) 4.3-2 4.3.1.3 CONTROL OF POWER DISTRIBUTION 4.3-3 4.3.1.4 MAXIMUM CONTROLLED REACTIVITY INSERTION RATE 4.3-4 4.3.1.5 SHUTDOWN MARGINS WITH VESSEL HEAD IN PLACE 4.3-4 4.3.1.6 SHUTDOWN MARGIN FOR REFUELING 4.3-5 4.3.1.7 STABILITY 4.3-5 4.3.1.8 ANTICIPATED TRANSIENTS WITHOUT TRIP 4.3-6 4.

3.2 DESCRIPTION

4.3-6 4.3.2.1 NUCLEAR DESIGN DESCRIPTION 4.3-6 4.3.2.2 POWER DISTRIBUTIONS 4.3-7 4.3.2.3 REACTIVITY COEFFICIENTS 4.3-18 4.3.2.4 CONTROL REQUIREMENTS 4.3-22 4.3.2.5 CONTROL 4.3-24 4.3.2.6 CONTROL ROD PATTERNS AND REACTIVITY WORTH 4.3-26 4.3.2.7 CRITICALITY OF FUEL ASSEMBLIES 4.3-27 4.3.2.8 STABILITY 4.3-32 4.3.2.9 VESSEL IRRADIATION 4.3-37 4.3.3 ANALYTICAL METHODS 4.3-37 1-xx Table of Contents

WATTS BAR TABLE OF CONTENTS Section Title Page 4.3.3.1 FUEL TEMPERATURE (DOPPLER) CALCULATIONS 4.3-38 4.3.3.2 MACROSCOPIC GROUP CONSTANTS 4.3-39 4.3.3.3 SPATIAL FEW-GROUP DIFFUSION CALCULATIONS 4.3-40 4.4 THERMAL AND HYDRAULIC DESIGN 4.4-1 4.4.1 DESIGN BASES 4.4-1 4.4.1.1 DEPARTURE FROM NUCLEATE BOILING DESIGN BASIS 4.4-1 4.4.1.2 FUEL TEMPERATURE DESIGN BASIS 4.4-2 4.4.1.3 CORE FLOW DESIGN BASIS 4.4-3 4.4.1.4 HYDRODYNAMIC STABILITY DESIGN BASES 4.4-3 4.4.1.5 OTHER CONSIDERATIONS 4.4-3 4.

4.2 DESCRIPTION

4.4-4 4.4.2.1

SUMMARY

COMPARISON 4.4-4 4.4.2.2 FUEL AND CLADDING TEMPERATURES 4.4-4 4.4.2.3 CRITICAL HEAT FLUX RATIO OR DEPARTURE FROM NUCLEATE BOILING RATIO AND MIXING TECHNOLOGY 4.4-7 4.4.2.4 FLUX TILT CONSIDERATIONS 4.4-13 4.4.2.5 VOID FRACTION DISTRIBUTION 4.4-14 4.4.2.6 DELETED 4.4-14 4.4.2.7 CORE PRESSURE DROPS AND HYDRAULIC LOADS 4.4-14 4.4.2.8 CORRELATION AND PHYSICAL DATA 4.4-15 4.4.2.9 THERMAL EFFECTS OF OPERATIONAL TRANSIENTS 4.4-18 4.4.2.10 UNCERTAINTIES IN ESTIMATES 4.4-18 4.4.2.11 PLANT CONFIGURATION DATA 4.4-20 4.4.3 EVALUATION 4.4-21 4.4.3.1 CORE HYDRAULICS 4.4-21 4.4.3.2 INFLUENCE OF POWER DISTRIBUTION 4.4-22 4.4.3.3 CORE THERMAL RESPONSE 4.4-24 4.4.3.4 ANALYTICAL TECHNIQUES 4.4-25 4.4.3.5 HYDRODYNAMIC AND FLOW POWER COUPLED INSTABILITY4.4-26 4.4.3.6 TEMPERATURE TRANSIENT EFFECTS ANALYSIS 4.4-28 4.4.3.7 POTENTIALLY DAMAGING TEMPERATURE EFFECTS DURING TRANSIENTS 4.4-29 4.4.3.8 ENERGY RELEASE DURING FUEL ELEMENT BURNOUT 4.4-29 4.4.3.9 DELETED 4.4-30 Table of Contents 1-xxi

WATTS BAR TABLE OF CONTENTS Section Title Page 4.4.3.10 FUEL ROD BEHAVIOR-EFFECTS FROM COOLANT FLOW BLOCKAGE 4.4-30 4.4.4 TESTING AND VERIFICATION 4.4-31 4.4.4.1 TESTS PRIOR TO INITIAL CRITICALITY 4.4-31 4.4.4.2 INITIAL POWER AND PLANT OPERATION 4.4-31 4.4.4.3 COMPONENT AND FUEL INSPECTIONS 4.4-32 4.4.5 INSTRUMENTATION APPLICATION 4.4-32 4.4.5.1 INCORE INSTRUMENTATION 4.4-32 4.4.5.2 OVERTEMPERATURE AND OVERPOWER T INSTRUMENTATION 4.4-32 4.4.5.3 INSTRUMENTATION TO LIMIT MAXIMUM POWER OUTPUT 4.4-32 5.0 REACTOR COOLANT SYSTEM 5.1

SUMMARY

DESCRIPTION 5.1-1 5.1.1 SCHEMATIC FLOW DIAGRAM 5.1-6 5.1.2 PIPING AND INSTRUMENTATION DIAGRAMS 5.1-6 5.1.3 ELEVATION DRAWING 5.1-6 5.2 INTEGRITY OF REACTOR COOLANT PRESSURE BOUNDARY 5.2-1 5.2.1 DESIGN OF REACTOR COOLANT PRESSURE BOUNDARY COMPONENTS 5.2-2 5.2.1.1 PERFORMANCE OBJECTIVES 5.2-2 5.2.1.2 DESIGN PARAMETERS 5.2-3 5.2.1.3 COMPLIANCE WITH 10 CFR PART 50, SECTION 50.55A 5.2-4 5.2.1.4 APPLICABLE CODE CASES 5.2-4 5.2.1.5 DESIGN TRANSIENTS 5.2-5 5.2.1.6 IDENTIFICATION OF ACTIVE PUMPS AND VALVES 5.2-14 5.2.1.7 DESIGN OF ACTIVE PUMPS AND VALVES 5.2-15 5.2.1.8 INADVERTENT OPERATION OF VALVES 5.2-15 5.2.1.9 STRESS AND PRESSURE LIMITS 5.2-15 5.2.1.10 STRESS ANALYSIS FOR STRUCTURAL ADEQUACY 5.2-15 5.2.1.11 ANALYSIS METHODS FOR FAULTED CONDITIONS 5.2-33 5.2.1.12 PROTECTION AGAINST ENVIRONMENTAL FACTORS 5.2-33 5.2.1.13 COMPLIANCE WITH CODE REQUIREMENTS 5.2-33 5.2.1.14 STRESS ANALYSIS FOR FAULTED CONDITIONS LOADINGS 5.2-33 1-xxii Table of Contents

WATTS BAR TABLE OF CONTENTS Section Title Page 5.2.1.15 STRESS LEVELS IN CATEGORY I SYSTEMS 5.2-33 5.2.1.16 ANALYTICAL METHODS FOR STRESSES IN PUMPS AND VALVES 5.2-33 5.2.1.17 ANALYTICAL METHODS FOR EVALUATION OF PUMP SPEED AND BEARING INTEGRITY 5.2-33 5.2.1.18 OPERATION OF ACTIVE VALVES UNDER TRANSIENT LOADINGS 5.2-34 5.2.2 OVERPRESSURIZATION PROTECTION 5.2-34 5.2.2.1 LOCATION OF PRESSURE RELIEF DEVICES 5.2-34 5.2.2.2 MOUNTING OF PRESSURE RELIEF DEVICES 5.2-34 5.2.2.3 REPORT ON OVERPRESSURE PROTECTION 5.2-34 5.2.2.4 RCS PRESSURE CONTROL DURING LOW TEMPERATURE OPERATION 5.2-36 5.2.3 GENERAL MATERIAL CONSIDERATIONS 5.2-41 5.2.3.1 MATERIAL SPECIFICATIONS 5.2-41 5.2.3.2 COMPATIBILITY WITH REACTOR COOLANT 5.2-41 5.2.3.3 COMPATIBILITY WITH EXTERNAL INSULATION AND ENVIRONMENTAL ATMOSPHERE 5.2-42 5.2.3.4 CHEMISTRY OF REACTOR COOLANT 5.2-42 5.2.4 FRACTURE TOUGHNESS 5.2-43 5.2.4.1 COMPLIANCE WITH CODE REQUIREMENTS 5.2-43 5.2.4.2 ACCEPTABLE FRACTURE ENERGY LEVELS 5.2-44 5.2.4.3 OPERATING LIMITATIONS DURING STARTUP AND SHUTDOWN 5.2-44 5.2.5 AUSTENITIC STAINLESS STEEL 5.2-46 5.2.5.1 CLEANING AND CONTAMINATION PROTECTION PROCEDURES 5.2-47 5.2.5.2 SOLUTION HEAT TREATMENT REQUIREMENTS 5.2-48 5.2.5.3 MATERIAL INSPECTION PROGRAM 5.2-48 5.2.5.4 UNSTABLILIZED AUSTENITIC STAINLESS STEELS 5.2-48 5.2.5.5 PREVENTION OF INTERGRANULAR ATTACK OF UNSTABILIZED AUSTENITIC STAINLESS STEELS 5.2-48 5.2.5.6 RETESTING UNSTABILIZED AUSTENITIC STAINLESS STEEL EXPOSED TO SENSITIZATION TEMPERATURES 5.2-51 5.2.5.7 CONTROL OF DELTA FERRITE IN AUSTENITIC STAINLESS STEEL WELDING 5.2-52 5.2.6 PUMP FLYWHEELS 5.2-53 Table of Contents 1-xxiii

WATTS BAR TABLE OF CONTENTS Section Title Page 5.2.6.1 DESIGN BASIS 5.2-53 5.2.6.2 FABRICATION AND INSPECTION 5.2-54 5.2.6.3 ACCEPTANCE CRITERIA AND COMPLIANCE WITH REGULATORY GUIDE 1.14 5.2-54 5.2.7 RCPB LEAKAGE DETECTION SYSTEMS 5.2-55 5.2.7.1 COLLECTION OF IDENTIFIED LEAKAGE 5.2-55 5.2.7.2 UNIDENTIFIED LEAKAGE TO CONTAINMENT 5.2-56 5.2.7.3 METHODS OF DETECTION 5.2-56 5.2.7.4 INTERSYSTEM LEAKAGE DETECTION 5.2-59 5.2.7.5 UNIDENTIFIED LEAKAGE SYSTEM SENSITIVITY AND RESPONSE TIME 5.2-63 5.2.7.6 SEISMIC CAPABILITY 5.2-65 5.2.7.7 INDICATORS AND ALARMS 5.2-65 5.2.7.8 TESTING 5.2-65 5.2.8 INSERVICE INSPECTION OF ASME CODE CLASS 1 COMPONENTS 5.2-66 5.2.8.1 COMPONENTS SUBJECT TO EXAMINATION AND/OR TEST 5.2-66 5.2.8.2 ACCESSIBILITY 5.2-66 5.2.8.3 EXAMINATION TECHNIQUES AND PROCEDURES 5.2-68 5.2.8.4 INSPECTION INTERVALS 5.2-68 5.2.8.5 EXAMINATION CATEGORIES AND REQUIREMENTS 5.2-68 5.2.8.6 EVALUATION OF EXAMINATION RESULTS 5.2-68 5.2.8.7 SYSTEM PRESSURE TESTS 5.2-68 5.3 THERMAL HYDRAULIC SYSTEM DESIGN 5.3-1 5.3.1 ANALYTICAL METHODS AND DATA 5.3-1 5.3.2 OPERATING RESTRICTIONS ON PUMPS 5.3-1 5.3.3 POWER-FLOW OPERATING MAP (BWR) 5.3-1 5.3.4 TEMPERATURE-POWER OPERATING MAP 5.3-1 5.3.5 LOAD FOLLOWING CHARACTERISTICS 5.3-1 5.3.6 TRANSIENT EFFECTS 5.3-1 5.3.7 THERMAL AND HYDRAULIC CHARACTERISTICS

SUMMARY

TABLE5.3-1 5.4 REACTOR VESSEL AND APPURTENANCES 5.4-1 5.4.1 DESIGN BASES 5.4-1 5.4.1.1 CODES AND SPECIFICATIONS 5.4-1 1-xxiv Table of Contents

WATTS BAR TABLE OF CONTENTS Section Title Page 5.4.1.2 DESIGN TRANSIENTS 5.4-1 5.4.1.3 PROTECTION AGAINST NON-DUCTILE FAILURE 5.4-2 5.4.1.4 INSPECTION 5.4-2 5.

4.2 DESCRIPTION

5.4-2 5.4.2.1 FABRICATION PROCESSES 5.4-3 5.4.2.2 PROTECTION OF CLOSURE STUDS 5.4-4 5.4.3 EVALUATION 5.4-4 5.4.3.1 STEADY STATE STRESSES 5.4-4 5.4.3.2 FATIGUE ANALYSIS BASED ON TRANSIENT STRESSES 5.4-4 5.4.3.3 THERMAL STRESSES DUE TO GAMMA HEATING 5.4-4 5.4.3.4 THERMAL STRESSES DUE TO LOSS OF COOLANT ACCIDENT 5.4-4 5.4.3.5 HEATUP AND COOLDOWN 5.4-4 5.4.3.6 IRRADIATION SURVEILLANCE PROGRAMS 5.4-4 5.4.3.7 CAPABILITY FOR ANNEALING THE REACTOR VESSEL 5.4-14 5.4.4 TESTS AND INSPECTIONS 5.4-15 5.4.4.1 ULTRASONIC EXAMINATIONS 5.4-15 5.4.4.2 PENETRANT EXAMINATIONS 5.4-15 5.4.4.3 MAGNETIC PARTICLE EXAMINATION 5.4-15 5.4.4.4 INSERVICE INSPECTION 5.4-16 5.5 COMPONENT AND SUBSYSTEM DESIGN 5.5-1 5.5.1 REACTOR COOLANT PUMPS 5.5-1 5.5.1.1 DESIGN BASES 5.5-1 5.5.1.2 DESIGN DESCRIPTION 5.5-1 5.5.1.3 DESIGN EVALUATION 5.5-3 5.5.1.4 TESTS AND INSPECTIONS 5.5-8 5.5.2 STEAM GENERATORS 5.5-8 5.5.2.1 DESIGN BASIS 5.5-8 5.5.2.2 DESIGN DESCRIPTION 5.5-9 5.5.2.3 DESIGN EVALUATION 5.5-9 5.5.2.4 TESTS AND INSPECTIONS 5.5-15 5.5.3 REACTOR COOLANT PIPING 5.5-16 5.5.3.1 DESIGN BASES 5.5-16 5.5.3.2 DESIGN DESCRIPTION 5.5-16 5.5.3.3 DESIGN EVALUATION 5.5-19 Table of Contents 1-xxv

WATTS BAR TABLE OF CONTENTS Section Title Page 5.5.3.4 TESTS AND INSPECTIONS 5.5-20 5.5.4 STEAM OUTLET FLOW RESTRICTOR (STEAM GENERATOR) 5.5-21 5.5.4.1 DESIGN BASIS 5.5-21 5.5.

4.2 DESCRIPTION

5.5-21 5.5.4.3 EVALUATION 5.5-21 5.5.4.4 TESTS AND INSPECTIONS 5.5-22 5.5.5 MAIN STEAM LINE ISOLATION SYSTEM 5.5-22 5.5.6 REACTOR VESSEL HEAD VENT SYSTEM 5.5-22 5.5.6.1 DESIGN BASIS 5.5-22 5.5.6.2 SYSTEM DESCRIPTION 5.5-22 5.5.6.3 DESIGN EVALUATION 5.5-24 5.5.7 RESIDUAL HEAT REMOVAL SYSTEM 5.5-25 5.5.7.1 DESIGN BASES 5.5-25 5.5.7.2 SYSTEM DESCRIPTION 5.5-26 5.5.7.3 DESIGN EVALUATION 5.5-30 5.5.7.4 TESTS AND INSPECTIONS 5.5-33 5.5.8 REACTOR COOLANT CLEANUP SYSTEM 5.5-33 5.5.9 MAIN STEAM LINE AND FEEDWATER PIPING 5.5-33 5.5.10 PRESSURIZER 5.5-33 5.5.10.1 DESIGN BASES 5.5-33 5.5.10.2 DESIGN DESCRIPTION 5.5-34 5.5.10.3 DESIGN EVALUATION 5.5-36 5.5.10.4 TESTS AND INSPECTIONS 5.5-38 5.5.11 PRESSURIZER RELIEF TANK 5.5-39 5.5.11.1 DESIGN BASES 5.5-39 5.5.11.2 DESIGN DESCRIPTION 5.5-39 5.5.11.3 DESIGN EVALUATION 5.5-40 5.5.12 VALVES 5.5-40 5.5.12.1 DESIGN BASES 5.5-40 5.5.12.2 DESIGN DESCRIPTION 5.5-40 5.5.12.3 DESIGN EVALUATION 5.5-41 5.5.12.4 TESTS AND INSPECTIONS 5.5-41 5.5.13 SAFETY AND RELIEF VALVES 5.5-42 5.5.13.1 DESIGN BASES 5.5-42 1-xxvi Table of Contents

WATTS BAR TABLE OF CONTENTS Section Title Page 5.5.13.2 DESIGN DESCRIPTION 5.5-42 5.5.13.3 DESIGN EVALUATION 5.5-42 5.5.13.4 TESTS AND INSPECTIONS 5.5-43 5.5.14 COMPONENT SUPPORTS 5.5-43 5.5.14.1 DESIGN BASES 5.5-43 5.5.

14.2 DESCRIPTION

5.5-43 5.5.14.3 EVALUATION 5.5-45 5.5.14.4 TESTS AND INSPECTIONS 5.5-45 5.6 INSTRUMENTATION APPLICATION 5.6-1 6.0 ENGINEERED SAFETY FEATURES 6.1 ENGINEERED SAFETY FEATURE MATERIALS 6.1-1 6.1.1 METALLIC MATERIALS 6.1-1 6.1.1.1 MATERIALS SELECTION AND FABRICATION 6.1-1 6.1.1.2 COMPOSITION, COMPATIBILITY, AND STABILITY OF CONTAINMENT AND CORE SPRAY COOLANTS 6.1-2 6.1.2 ORGANIC MATERIALS 6.1-3 6.1.2.1 ELECTRICAL INSULATION 6.1-3 6.1.2.2 SURFACE COATINGS 6.1-3 6.1.2.3 ICE CONDENSER EQUIPMENT 6.1-4 6.1.2.4 IDENTIFICATION TAGS 6.1-4 6.1.2.5 VALVES AND INSTRUMENTS WITHIN CONTAINMENT 6.1-4 6.1.2.6 HEATING AND VENTILATING DOOR SEALS 6.1-5 6.1.2.7 MISCELLANEOUS 6.1-5 6.1.3 POST-ACCIDENT CHEMISTRY 6.1-5 6.1.3.1 BORIC ACID, H3BO3 6.1-5 6.1.3.2 LITHIUM HYDROXIDE 6.1-5 6.1.3.3 SODIUM TETRABORATE 6.1-5 6.1.3.4 FINAL POST-ACCIDENT CHEMISTRY 6.1-6 6.1.4 DEGREE OF COMPLIANCE WITH REGULATORY GUIDE 1.54 FOR PAINTS AND COATINGS INSIDE CONTAINMENT 6.1-6 6.2 CONTAINMENT SYSTEMS Table of Contents 1-xxvii

WATTS BAR TABLE OF CONTENTS Section Title Page 6.2.1 CONTAINMENT FUNCTIONAL DESIGN 6.2.1-1 6.2.1.1 DESIGN BASES 6.2.1-1 6.2.1.1.1 PRIMARY CONTAINMENT DESIGN BASES 6.2.1-1 6.2.1.2 PRIMARY CONTAINMENT SYSTEM DESIGN 6.2.1-3 6.2.1.3 DESIGN EVALUATION 6.2.1-3 6.2.1.3.1 PRIMARY CONTAINMENT EVALUATION 6.2.1-3 6.2.1.3.2 GENERAL DESCRIPTION OF CONTAINMENT PRESSURE ANALYSIS 6.2.1-4 6.2.1.3.3 LONG-TERM CONTAINMENT PRESSURE ANALYSIS 6.2.1-4 6.2.1.3.4 SHORT-TERM BLOWDOWN ANALYSIS 6.2.1-9 6.2.1.3.5 EFFECT OF STEAM BYPASS 6.2.1-17 6.2.1.3.6 MASS AND ENERGY RELEASE DATA 6.2.1-21 6.2.1.3.7 ACCIDENT CHRONOLOGY 6.2.1-29 6.2.1.3.8 MASS AND ENERGY BALANCE TABLES 6.2.1-29 6.2.1.3.9 CONTAINMENT PRESSURE DIFFERENTIALS 6.2.1-31 6.2.1.3.10 STEAM LINE BREAK INSIDE CONTAINMENT 6.2.1-34 6.2.1.3.11 MAXIMUM REVERSE PRESSURE DIFFERENTIALS 6.2.1-39 6.2.2 CONTAINMENT HEAT REMOVAL SYSTEMS 6.2.2-1 6.2.2.1 DESIGN BASES 6.2.2-1 6.2.2.2 SYSTEM DESIGN 6.2.2-3 6.2.2.3 DESIGN EVALUATION 6.2.2-5 6.2.2.4 TESTING AND INSPECTIONS 6.2.2-7 6.2.2.5 INSTRUMENTATION REQUIREMENTS 6.2.2-8 6.2.2.6 MATERIALS 6.2.2-9 6.2.3 SECONDARY CONTAINMENT FUNCTIONAL DESIGN 6.2.3-1 6.2.3.1 DESIGN BASES 6.2.3-1 6.2.3.1.1 SECONDARY CONTAINMENT ENCLOSURES 6.2.3-1 6.2.3.1.2 EMERGENCY GAS TREATMENT SYSTEM (EGTS) 6.2.3-1 6.2.3.1.3 AUXILIARY BUILDING GAS TREATMENT SYSTEM (ABGTS) 6.2.3-2 6.2.3.2 SYSTEM DESIGN 6.2.3-2 6.2.3.2.1 SECONDARY CONTAINMENT ENCLOSURES 6.2.3-2 6.2.3.2.2 EMERGENCY GAS TREATMENT SYSTEM (EGTS) 6.2.3-6 6.2.3.2.3 AUXILIARY BUILDING GAS TREATMENT SYSTEM (ABGTS) 6.2.3-10 1-xxviii Table of Contents

WATTS BAR TABLE OF CONTENTS Section Title Page 6.2.3.3 DESIGN EVALUATION 6.2.3-12 6.2.3.3.1 SECONDARY CONTAINMENT ENCLOSURES 6.2.3-12 6.2.3.3.2 EMERGENCY GAS TREATMENT SYSTEM (EGTS) 6.2.3-15 6.2.3.3.3 AUXILIARY BUILDING GAS TREATMENT SYSTEM (ABGTS) 6.2.3-19 6.2.3.3.4 TRITIUM PRODUCTION CORE EVALUATION (UNIT 1 ONLY) 6.2.3-22 6.2.3.4 TEST AND INSPECTIONS 6.2.3-22 6.2.3.4.1 EMERGENCY GAS TREATMENT SYSTEM (EGTS) 6.2.3-22 6.2.3.4.2 AUXILIARY BUILDING GAS TREATMENT SYSTEM (ABGTS) 6.2.3-23 6.2.3.5 INSTRUMENTATION REQUIREMENTS 6.2.3-23 6.2.3.5.1 EMERGENCY GAS TREATMENT SYSTEM (EGTS) 6.2.3-23 6.2.3.5.2 AUXILIARY BUILDING GAS TREATMENT SYSTEM (ABGTS) 6.2.3-24 6.2.4 CONTAINMENT ISOLATION SYSTEMS 6.2.4-1 6.2.4.1 DESIGN BASES 6.2.4-1 6.2.4.2 SYSTEM DESIGN 6.2.4-4 6.2.4.2.1 DESIGN REQUIREMENTS 6.2.4-5 6.2.4.2.2 CONTAINMENT ISOLATION OPERATION 6.2.4-6 6.2.4.2.3 PENETRATION DESIGN 6.2.4-6 6.2.4.3 DESIGN EVALUATION 6.2.4-12 6.2.4.3.1 POSSIBLE LEAKAGE PATHS 6.2.4-14 6.2.4.4 TESTS AND INSPECTIONS 6.2.4-17 6.2.5 COMBUSTIBLE GAS CONTROL IN CONTAINMENT 6.2.5-1 6.2.5.1 DESIGN BASES 6.2.5-1 6.2.5.2 SYSTEM DESIGN 6.2.5-2 6.2.5.3 DESIGN EVALUATION 6.2.5-4 6.2.5.4 TESTING AND INSPECTIONS 6.2.5-5 6.2.5.5 INSTRUMENTATION APPLICATION 6.2.5-5 6.2.6 CONTAINMENT LEAKAGE TESTING 6.2.6-1 6.2.6.1 CONTAINMENT INTEGRATED LEAK RATE TEST 6.2.6-1 6.2.6.2 CONTAINMENT PENETRATION LEAKAGE RATE TEST 6.2.6-2 6.2.6.3 SCHEDULING AND REPORTING OF PERIODIC TESTS 6.2.6-6 6.3 EMERGENCY CORE COOLING SYSTEM 6.3-1 6.3.1 DESIGN BASES 6.3-1 Table of Contents 1-xxix

WATTS BAR TABLE OF CONTENTS Section Title Page 6.3.1.1 RANGE OF COOLANT RUPTURES AND LEAKS 6.3-1 6.3.1.2 FISSION PRODUCT DECAY HEAT 6.3-2 6.3.1.3 REACTIVITY REQUIRED FOR COLD SHUTDOWN 6.3-2 6.3.1.4 CAPABILITY TO MEET FUNCTIONAL REQUIREMENTS 6.3-2 6.3.2 SYSTEM DESIGN 6.3-2 6.3.2.1 SCHEMATIC PIPING AND INSTRUMENTATION DIAGRAMS 6.3-2 6.3.2.2 EQUIPMENT AND COMPONENT DESIGN 6.3-2 6.3.2.3 APPLICABLE CODES AND CLASSIFICATIONS 6.3-15 6.3.2.4 MATERIALS SPECIFICATIONS AND COMPATIBILITY 6.3-15 6.3.2.5 DESIGN PRESSURES AND TEMPERATURES 6.3-16 6.3.2.6 COOLANT QUANTITY 6.3-16 6.3.2.7 PUMP CHARACTERISTICS 6.3-16 6.3.2.8 HEAT EXCHANGER CHARACTERISTICS 6.3-16 6.3.2.9 ECCS FLOW DIAGRAMS 6.3-17 6.3.2.10 RELIEF VALVES 6.3-17 6.3.2.11 SYSTEM RELIABILITY 6.3-17 6.3.2.12 PROTECTION PROVISIONS 6.3-21 6.3.2.13 PROVISIONS FOR PERFORMANCE TESTING 6.3-22 6.3.2.14 NET POSITIVE SUCTION HEAD 6.3-22 6.3.2.15 CONTROL OF MOTOR-OPERATED ISOLATION VALVES 6.3-22 6.3.2.16 MOTOR-OPERATED VALVES AND CONTROLS 6.3-23 6.3.2.17 MANUAL ACTIONS 6.3-23 6.3.2.18 PROCESS INSTRUMENTATION 6.3-23 6.3.2.19 MATERIALS 6.3-23 6.3.3 PERFORMANCE EVALUATION 6.3-23 6.3.3.1 EVALUATION MODEL 6.3-23 6.3.3.2 ECCS PERFORMANCE 6.3-24 6.3.3.3 ALTERNATE ANALYSIS METHODS 6.3-24 6.3.3.4 FUEL ROD PERFORATIONS 6.3-25 6.3.3.5 EFFECTS OF ECCS OPERATION ON THE CORE 6.3-25 6.3.3.6 USE OF DUAL FUNCTION COMPONENTS 6.3-25 6.3.3.7 LAG TIMES 6.3-27 6.3.3.8 THERMAL SHOCK CONSIDERATIONS 6.3-27 6.3.3.9 LIMITS ON SYSTEM PARAMETERS 6.3-27 1-xxx Table of Contents

WATTS BAR TABLE OF CONTENTS Section Title Page 6.3.3.10 USE OF RHR SPRAY 6.3-27 6.3.4 TESTS AND INSPECTIONS 6.3-28 6.3.4.1 PREOPERATIONAL TESTS 6.3-28 6.3.4.2 COMPONENT TESTING 6.3-29 6.3.4.3 PERIODIC SYSTEM TESTING 6.3-29 6.3.5 INSTRUMENTATION APPLICATION 6.3-30 6.3.5.1 TEMPERATURE INDICATION 6.3-30 6.3.5.2 PRESSURE INDICATION 6.3-30 6.3.5.3 FLOW INDICATION 6.3-31 6.3.5.4 LEVEL INDICATION 6.3-31 6.3.5.5 VALVE POSITION INDICATION 6.3-32 6.4 HABITABILITY SYSTEMS 6.4-1 6.4.1 DESIGN BASES 6.4-1 6.4.2 SYSTEM DESIGN 6.4-1 6.4.2.1 DEFINITION OF MCRHS AREA 6.4-1 6.4.2.2 VENTILATION SYSTEM DESIGN 6.4-2 6.4.2.3 LEAK TIGHTNESS 6.4-2 6.4.2.4 INTERACTION WITH OTHER ZONES AND PRESSURE-CONTAINING EQUIPMENT 6.4-3 6.4.2.5 SHIELDING DESIGN 6.4-4 6.4.2.6 CONTROL ROOM EMERGENCY PROVISIONS 6.4-4 6.4.2.7 MCRHS FIRE PROTECTION 6.4-4 6.4.3 SYSTEM OPERATIONAL PROCEDURES 6.4-5 6.4.4 DESIGN EVALUATIONS 6.4-7 6.4.4.1 RADIOLOGICAL PROTECTION 6.4-7 6.4.4.2 TOXIC GAS PROTECTION 6.4-7 6.4.5 TESTING AND INSPECTION 6.4-9 6.4.6 INSTRUMENTATION REQUIREMENTS 6.4-9 6.5 FISSION PRODUCT REMOVAL AND CONTROL SYSTEMS 6.5-1 6.5.1 ENGINEERED SAFETY FEATURE (ESF) FILTER SYSTEMS 6.5-1 6.5.1.1 DESIGN BASES 6.5-1 6.5.1.2 SYSTEM DESIGN 6.5-2 6.5.1.3 DESIGN EVALUATION 6.5-5 Table of Contents 1-xxxi

WATTS BAR TABLE OF CONTENTS Section Title Page 6.5.1.4 TESTS AND INSPECTIONS 6.5-5 6.5.1.5 INSTRUMENTATION REQUIREMENTS 6.5-6 6.5.1.6 MATERIALS 6.5-7 6.5.2 CONTAINMENT SPRAY SYSTEM FOR FISSION PRODUCT CLEANUP 6.5-8 6.5.2.1 DESIGN BASES 6.5-8 6.5.2.2 SYSTEM DESIGN 6.5-8 6.5.2.3 DESIGN EVALUATION 6.5-8 6.5.2.4 TESTS AND INSPECTIONS 6.5-8 6.5.2.5 INSTRUMENTATION REQUIREMENTS 6.5-8 6.5.2.6 MATERIALS 6.5-8 6.5.3 FISSION PRODUCT CONTROL SYSTEMS 6.5-8 6.5.3.1 PRIMARY CONTAINMENT 6.5-8 6.5.3.2 SECONDARY CONTAINMENTS 6.5-10 6.5.4 ICE CONDENSER AS A FISSION PRODUCT CLEANUP SYSTEM 6.5-10 6.5.4.1 ICE CONDENSER DESIGN BASIS (FISSION PRODUCT CLEANUP FUNCTION) 6.5-11 6.5.4.2 ICE CONDENSER SYSTEM DESIGN 6.5-11 6.5.4.3 ICE CONDENSER SYSTEM DESIGN EVALUATION (FISSION PRODUCT CLEANUP FUNCTION) 6.5-11 6.5.4.4 CONDENSER SYSTEM TESTS AND INSPECTIONS 6.5-13 6.5.4.5 ICE CONDENSER MATERIALS 6.5-14 6.6 INSERVICE INSPECTION OF ASME CODE CLASS 2 AND 3 COMPONENTS 6.6-1 6.6.1 COMPONENTS SUBJECT TO EXAMINATION AND/OR TEST 6.6-1 6.6.2 ACCESSIBILITY 6.6-1 6.6.3 EXAMINATION TECHNIQUES AND PROCEDURES 6.6-1 6.6.4 INSPECTION INTERVALS 6.6-1 6.6.5 EXAMINATION CATEGORIES AND REQUIREMENTS 6.6-1 6.6.6 EVALUATION OF EXAMINATION RESULTS 6.6-1 6.6.7 SYSTEM PRESSURE TESTS 6.6-2 6.6.8 PROTECTION AGAINST POSTULATED PIPING FAILURES 6.6-2 6.7 ICE CONDENSER SYSTEM 6.7-1 6.7.1 FLOOR STRUCTURE AND COOLING SYSTEM 6.7-1 6.7.1.1 DESIGN BASES 6.7-1 1-xxxii Table of Contents

WATTS BAR TABLE OF CONTENTS Section Title Page 6.7.1.2 SYSTEM DESIGN 6.7-4 6.7.1.3 DESIGN EVALUATION 6.7-5 6.7.2 WALL PANELS 6.7-8 6.7.2.1 DESIGN BASIS 6.7-8 6.7.2.2 SYSTEM DESIGN 6.7-8 6.7.2.3 DESIGN EVALUATION 6.7-9 6.7.3 LATTICE FRAMES AND SUPPORT COLUMNS 6.7-9 6.7.3.1 DESIGN BASIS 6.7-9 6.7.3.2 SYSTEM DESIGN 6.7-12 6.7.3.3 DESIGN EVALUATION 6.7-13 6.7.4 ICE BASKETS 6.7-14 6.7.4.1 DESIGN BASIS 6.7-14 6.7.4.2 SYSTEM DESIGN 6.7-16 6.7.4.3 DESIGN EVALUATION 6.7-18 6.7.5 CRANE AND RAIL ASSEMBLY 6.7-20 6.7.5.1 DESIGN BASIS 6.7-20 6.7.5.2 SYSTEM DESIGN 6.7-21 6.7.5.3 DESIGN EVALUATION 6.7-21 6.7.6 REFRIGERATION SYSTEM 6.7-22 6.7.6.1 DESIGN BASIS 6.7-22 6.7.6.2 SYSTEM DESIGN 6.7-23 6.7.6.3 DESIGN EVALUATION 6.7-26 6.7.7 AIR HANDLING UNITS 6.7-30 6.7.7.1 DESIGN BASIS 6.7-30 6.7.7.2 SYSTEM DESIGN 6.7-31 6.7.7.3 DESIGN EVALUATION 6.7-31 6.7.8 LOWER INLET DOORS 6.7-32 6.7.8.1 DESIGN BASIS 6.7-32 6.7.8.2 SYSTEM DESIGN 6.7-35 6.7.8.3 DESIGN EVALUATION 6.7-37 6.7.9 LOWER SUPPORT STRUCTURE 6.7-38 6.7.9.1 DESIGN BASIS 6.7-38 6.7.9.2 SYSTEM DESIGN 6.7-39 6.7.9.3 DESIGN EVALUATION 6.7-41 Table of Contents 1-xxxiii

WATTS BAR TABLE OF CONTENTS Section Title Page 6.7.10 TOP DECK AND DOORS 6.7-50 6.7.10.1 DESIGN BASIS 6.7-50 6.7.10.2 SYSTEM DESIGN 6.7-51 6.7.11 INTERMEDIATE DECK AND DOORS 6.7-55 6.7.11.1 DESIGN BASIS 6.7-55 6.7.11.2 SYSTEM DESIGN 6.7-56 6.7.11.3 DESIGN EVALUATION 6.7-57 6.7.12 AIR DISTRIBUTION DUCTS 6.7-58 6.7.12.1 DESIGN BASIS 6.7-58 6.7.12.2 SYSTEM DESIGN 6.7-59 6.7.12.3 DESIGN EVALUATION 6.7-59 6.7.13 EQUIPMENT ACCESS DOOR 6.7-59 6.7.13.1 DESIGN BASIS 6.7-59 6.7.13.2 SYSTEM DESIGN 6.7-60 6.7.13.3 DESIGN EVALUATION 6.7-60 6.7.14 ICE TECHNOLOGY, ICE PERFORMANCE, AND ICE CHEMISTRY 6.7-60 6.7.14.1 DESIGN BASIS 6.7-60 6.7.14.2 SYSTEM DESIGN 6.7-61 6.7.14.3 DESIGN EVALUATION 6.7-61 6.7.15 ICE CONDENSER INSTRUMENTATION 6.7-66 6.7.15.1 DESIGN BASIS 6.7-66 6.7.15.2 DESIGN DESCRIPTION 6.7-67 6.7.15.3 DESIGN EVALUATION 6.7-69 6.7.16 ICE CONDENSER STRUCTURAL DESIGN 6.7-69 6.7.16.1 APPLICABLE CODES, STANDARDS, AND SPECIFICATIONS 6.7-69 6.7.16.2 LOADS AND LOADING COMBINATIONS 6.7-69 6.7.16.3 DESIGN AND ANALYTICAL PROCEDURES 6.7-70 6.7.16.4 STRUCTURAL ACCEPTANCE CRITERIA 6.7-71 6.7.17 SEISMIC ANALYSIS 6.7-72 6.7.17.1 SEISMIC ANALYSIS METHODS 6.7-72 6.7.17.2 SEISMIC LOAD DEVELOPMENT 6.7-74 6.7.17.3 VERTICAL SEISMIC RESPONSE 6.7-76 6.7.18 MATERIALS 6.7-76 6.7.18.1 DESIGN CRITERIA 6.7-76 1-xxxiv Table of Contents

WATTS BAR TABLE OF CONTENTS Section Title Page 6.7.18.2 ENVIRONMENTAL EFFECTS 6.7-77 6.7.18.3 COMPLIANCE WITH 10 CFR 50, APPENDIX B 6.7-78 6.7.18.4 MATERIALS SPECIFICATIONS 6.7-79 6.7.19 TESTS AND INSPECTIONS 6.7-80 6.8 AIR RETURN FANS 6.8-1 6.8.1 DESIGN BASES 6.8-1 6.8.2 SYSTEM DESCRIPTION 6.8-1 6.8.3 SAFETY EVALUATION 6.8-2 6.8.4 INSPECTION AND TESTING 6.8-3 6.8.5 INSTRUMENTATION REQUIREMENTS 6.8-3 6.9 MOTOR-OPERATED VALVE (MOV) PROGRAMS 6.9-1 7.0 INSTRUMENTATION AND CONTROLS

7.1 INTRODUCTION

7.1-1 7.1.1 IDENTIFICATION OF SAFETY-RELATED SYSTEMS 7.1-4 7.1.1.1 SAFETY-RELATED SYSTEMS 7.1-4 7.1.1.2 SAFETY-RELATED DISPLAY INSTRUMENTATION 7.1-5 7.1.1.3 INSTRUMENTATION AND CONTROL SYSTEM DESIGNERS 7.1-5 7.1.1.4 PLANT COMPARISON 7.1-5 7.1.2 IDENTIFICATION OF SAFETY CRITERIA 7.1-5 7.1.2.1 DESIGN BASES 7.1-6 7.1.2.2 INDEPENDENCE OF REDUNDANT SAFETY-RELATED SYSTEMS 7.1-11 7.1.2.3 PHYSICAL IDENTIFICATION OF SAFETY-RELATED EQUIPMENT 7.1-14 7.1.2.4 PROCESS SIGNAL ISOLATION RELAYS 7.1-15 7.2 REACTOR TRIP SYSTEM 7.2-1 7.

2.1 DESCRIPTION

7.2-1 7.2.1.1 SYSTEM DESCRIPTION 7.2-1 7.2.1.2 DESIGN BASES INFORMATION 7.2-16 7.2.1.3 FINAL SYSTEMS DRAWINGS 7.2-19 7.2.2 ANALYSES 7.2-19 Table of Contents 1-xxxv

WATTS BAR TABLE OF CONTENTS Section Title Page 7.2.2.1 EVALUATION OF DESIGN LIMITS 7.2-20 7.2.2.2 EVALUATION OF COMPLIANCE TO APPLICABLE CODES AND STANDARDS 7.2-22 7.2.2.3 SPECIFIC CONTROL AND PROTECTION INTERACTIONS 7.2-32 7.2.2.4 ADDITIONAL POSTULATED ACCIDENTS 7.2-35 7.2.3 TESTS AND INSPECTIONS 7.2-35 7.3 ENGINEERED SAFETY FEATURES ACTUATION SYSTEM 7.3-1 7.

3.1 DESCRIPTION

7.3-1 7.3.1.1 SYSTEM DESCRIPTION 7.3-1 7.3.1.2 DESIGN BASES INFORMATION 7.3-6 7.3.1.3 FINAL SYSTEM DRAWINGS 7.3-8 7.3.2 ANALYSIS 7.3-9 7.3.2.1 SYSTEM RELIABILITY/AVAILABILITY AND FAILURE MODE AND EFFECT ANALYSES 7.3-9 7.3.2.2 COMPLIANCE WITH STANDARDS AND DESIGN CRITERIA 7.3-9 7.3.2.3 FURTHER CONSIDERATIONS 7.3-16 7.3.2.4

SUMMARY

7.3-16 7.4 SYSTEMS REQUIRED FOR SAFE SHUTDOWN 7.4-1 7.

4.1 DESCRIPTION

7.4-1 7.4.1.1 MONITORING INDICATORS 7.4-1 7.4.1.2 CONTROLS 7.4-2 7.4.1.3 EQUIPMENT AND SYSTEMS AVAILABLE FOR COLD SHUTDOWN 7.4-5 7.4.2 AUXILIARY CONTROL ROOM (ACR) 7.4-5 7.4.3 ANALYSIS 7.4-6 7.5 INSTRUMENTATION SYSTEMS IMPORTANT TO SAFETY 7.5-1 7.5.1 POST ACCIDENT MONITORING INSTRUMENTATION (PAM) 7.5-1 7.5.1.1 SYSTEM DESCRIPTION 7.5-1 7.5.1.2 VARIABLE TYPES 7.5-1 7.5.1.3 VARIABLE CATEGORIES 7.5-2 7.5.1.4 DESIGN BASES 7.5-3 7.5.1.5 GENERAL REQUIREMENTS 7.5-6 7.5.1.6 ANALYSIS 7.5-7 1-xxxvi Table of Contents

WATTS BAR TABLE OF CONTENTS Section Title Page 7.5.1.7 TESTS AND INSPECTIONS 7.5-8 7.5.1.8 POST ACCIDENT MONITORING SYSTEM (PAMS) 7.5-8 7.5.2 PLANT COMPUTER SYSTEM 7.5-8 7.5.2.1 SAFETY PARAMETER DISPLAY SYSTEM 7.5-9 7.5.2.2 BYPASSED AND INOPERABLE STATUS INDICATION SYSTEM (BISI) 7.5-11 7.5.2.3 TECHNICAL SUPPORT CENTER AND COMMUNICATION DATA LINKS 7.5-13 7.6 ALL OTHER SYSTEMS REQUIRED FOR SAFETY 7.6-1 7.6.1 120V AC AND 125V DC VITAL PLANT CONTROL POWER SYSTEM 7.6-1 7.6.2 RESIDUAL HEAT REMOVAL ISOLATION VALVES 7.6-1 7.6.

2.1 DESCRIPTION

7.6-1 7.6.2.2 ANALYSIS 7.6-2 7.6.3 REFUELING INTERLOCKS 7.6-2 7.6.4 DELETED BY AMENDMENT 63. 7.6-2 7.6.5 ACCUMULATOR MOTOR-OPERATED VALVES 7.6-2 7.6.6 SPURIOUS ACTUATION PROTECTION FOR MOTOR OPERATED VALVES 7.6-3 7.6.7 LOOSE PART MONITORING SYSTEM (LPMS) SYSTEM DESCRIPTION 7.6-4 7.6.8 INTERLOCKS FOR RCS PRESSURE CONTROL DURING LOW TEMPERATURE OPERATION 7.6-8 7.6.8.1 ANALYSIS OF INTERLOCK 7.6-9 7.6.9 SWITCHOVER FROM INJECTION TO RECIRCULATION MODE FOLLOWING A LOCA 7.6-10 7.7 CONTROL SYSTEMS 7.7-1 7.

7.1 DESCRIPTION

7.7-1 7.7.1.1 CONTROL ROD DRIVE REACTOR CONTROL SYSTEM 7.7-1 7.7.1.2 ROD CONTROL SYSTEM 7.7-4 7.7.1.3 PLANT CONTROL SIGNALS FOR MONITORING AND INDICATING 7.7-10 7.7.1.4 PLANT CONTROL SYSTEM INTERLOCKS 7.7-15 7.7.1.5 PRESSURIZER PRESSURE CONTROL 7.7-16 7.7.1.6 PRESSURIZER WATER LEVEL CONTROL 7.7-16 7.7.1.7 STEAM GENERATOR WATER LEVEL CONTROL 7.7-17 Table of Contents 1-xxxvii

WATTS BAR TABLE OF CONTENTS Section Title Page 7.7.1.8 STEAM DUMP CONTROL 7.7-17 7.7.1.9 INCORE INSTRUMENTATION SYSTEM 7.7-19 7.7.1.10 CONTROL BOARD 7.7-20 7.7.1.11 DISTRIBUTED CONTROL SYSTEM 7.7-21 7.7.1.12 ANTICIPATED TRANSIENT WITHOUT SCRAM MITIGATION SYSTEM ACTUATION 7.7-23 7.7.2 ANALYSIS 7.7-24 7.7.2.1 SEPARATION OF PROTECTION AND CONTROL SYSTEM 7.7-25 7.7.2.2 RESPONSE CONSIDERATIONS OF REACTIVITY 7.7-25 7.7.2.3 STEP LOAD CHANGES WITHOUT STEAM DUMP 7.7-28 7.7.2.4 LOADING AND UNLOADING 7.7-28 7.7.2.5 LOAD REJECTION FURNISHED BY STEAM DUMP SYSTEM 7.7-28 7.7.2.6 TURBINE-GENERATOR TRIP WITH REACTOR TRIP 7.7-29 7A INSTRUMENTATION IDENTIFICATIONS AND SYMBOLS 7A-1 7A.1 IDENTIFICATION SYSTEM 7A-1 7A.1.1 FUNCTIONAL IDENTIFICATION 7A-1 7A.1.2 SYSTEM IDENTIFICATION 7A-3 7A.1.3 LOOP IDENTIFICATION 7A-3 7A.2 SYMBOLS 7A-3 7A.2.1 INSTRUMENT SYMBOL 7A-4 8.0 ELECTRIC POWER

8.1 INTRODUCTION

8.1-1 8.1.1 UTILITY GRID AND INTERCONNECTIONS 8.1-1 8.1.2 PLANT ELECTRICAL POWER SYSTEM 8.1-1 8.1.3 SAFETY-RELATED LOADS 8.1-2 8.1.4 DESIGN BASES 8.1-2 8.1.5 DESIGN CRITERIA AND STANDARDS 8.1-4 8.1.5.1 DESIGN CRITERIA 8.1-4 8.1.5.2 OTHER STANDARDS AND GUIDES 8.1-4 8.1.5.3 COMPLIANCE TO REGULATORY GUIDES AND IEEE STANDARDS 8.1-8 1-xxxviii Table of Contents

WATTS BAR TABLE OF CONTENTS Section Title Page 8.2 OFFSITE (PREFERRED) POWER SYSTEM 8.2-1 8.

2.1 DESCRIPTION

8.2-1 8.2.1.1 PREFERRED POWER SUPPLY 8.2-2 8.2.1.2 TRANSMISSION LINES, SWITCHYARD, AND TRANSFORMERS 8.2-3 8.2.1.3 ARRANGEMENT OF THE START BOARDS, UNIT BOARDS, COMMON BOARDS, AND REACTOR COOLANT PUMP (RCP)

BOARDS 8.2-4 8.2.1.4 ARRANGEMENT OF ELECTRICAL CONTROL AREA (NUCLEAR PLANT) 8.2-5 8.2.1.5 SWITCHYARD CONTROL AND RELAYING 8.2-5 8.2.1.6 6.9KV START BOARDS CONTROL AND RELAYING 8.2-8 8.2.1.7 6.9KV UNIT AND RCP BOARD CONTROL AND RELAYING 8.2-12 8.2.1.8 CONFORMANCE WITH STANDARDS 8.2-13 8.2.2 ANALYSIS 8.2-21 8.3 ONSITE (STANDBY) POWER SYSTEM 8.3-1 8.3.1 AC POWER SYSTEM 8.3-1 8.3.

1.1 DESCRIPTION

8.3-1 8.3.1.2 ANALYSIS 8.3-25 8.3.1.3 PHYSICAL IDENTIFICATION OF SAFETY-RELATED EQUIPMENT IN AC POWER SYSTEMS 8.3-36 8.3.1.4 INDEPENDENCE OF REDUNDANT AC POWER SYSTEMS 8.3-37 8.3.2 DC POWER SYSTEM 8.3-53 8.3.

2.1 DESCRIPTION

8.3-53 8.3.2.2 ANALYSIS OF VITAL 125V DC CONTROL POWER SUPPLY SYSTEM 8.3-61 8.3.2.3 PHYSICAL IDENTIFICATION OF SAFETY-RELATED EQUIPMENT IN DC POWER SYSTEMS 8.3-66 8.3.2.4 INDEPENDENCE OF REDUNDANT DC POWER SYSTEMS 8.3-66 8.3.3 FIRE PROTECTION FOR CABLE SYSTEMS 8.3-67 8A ANALYSIS OF SUBMERGED ELECTRICAL EQUIPMENT (DURING POST LOCA) POWERED FROM AUXILIARY POWER SYSTEM 8A-1 8B ANALYSIS OF SUBMERGED ELECTRICAL EQUIPMENT (DURING POST LOCA) POWERED FROM INSTRUMENTATION AND CONTROL POWER SYSTEM 8A-3 Table of Contents 1-xxxix

WATTS BAR TABLE OF CONTENTS Section Title Page 8C DELETED BY AMENDMENT 75 8A-5 8D IEEE STD 387-1984 FOR DIESEL-GENERATING UNITS APPLIED AS STANDBY POWER 8A-6 8E PROBABILITY/RELIABILITY ANALYSIS OF PROTECTION DEVICE SCHEMES FOR ASSOCIATED AND NON-CLASS 1E CABLES 8A-8 9.0 AUXILIARY SYSTEMS 9.1 FUEL STORAGE AND HANDLING 9.1-1 9.1.1 NEW FUEL STORAGE 9.1-1 9.1.1.1 DESIGN BASES 9.1-1 9.1.1.2 FACILITIES DESCRIPTION 9.1-1 9.1.1.3 SAFETY EVALUATION 9.1-1 9.1.2 SPENT FUEL STORAGE 9.1-2 9.1.2.1 DESIGN BASES 9.1-2 9.1.2.2 FACILITIES DESCRIPTION 9.1-2 9.1.2.3 SAFETY EVALUATION 9.1-3 9.1.2.4 MATERIALS 9.1-4 9.1.3 SPENT FUEL POOL COOLING AND CLEANUP SYSTEM (SFPCCS) 9.1-4 9.1.3.1 DESIGN BASES 9.1-4 9.1.3.2 SYSTEM DESCRIPTION 9.1-5 9.1.3.3 SAFETY EVALUATION 9.1-8 9.1.3.4 TESTS AND INSPECTIONS 9.1-11 9.1.3.5 INSTRUMENT APPLICATION 9.1-11 9.1.4 FUEL HANDLING SYSTEM 9.1-12 9.1.4.1 DESIGN BASES 9.1-12 9.1.4.2 SYSTEM DESCRIPTION 9.1-13 9.1.4.3 DESIGN EVALUATION 9.1-20 9.1.4.4 TESTS AND INSPECTIONS 9.1-26 9.2 WATER SYSTEMS 9.2-1 9.2.1 ESSENTIAL RAW COOLING WATER (ERCW) 9.2-1 9.2.1.1 DESIGN BASES 9.2-1 9.2.1.2 SYSTEM DESCRIPTION 9.2-1 1-xl Table of Contents

WATTS BAR TABLE OF CONTENTS Section Title Page 9.2.1.3 SAFETY EVALUATION 9.2-4 9.2.1.4 TESTS AND INSPECTIONS 9.2-8 9.2.1.5 INSTRUMENT APPLICATIONS 9.2-8 9.2.1.6 CORROSION, ORGANIC FOULING, AND ENVIRONMENTAL QUALIFICATION 9.2-10 9.2.1.7 DESIGN CODES 9.2-12 9.2.2 COMPONENT COOLING SYSTEM (CCS) 9.2-12 9.2.2.1 DESIGN BASES 9.2-12 9.2.2.2 SYSTEM DESCRIPTION 9.2-13 9.2.2.3 COMPONENTS 9.2-16 9.2.2.4 SAFETY EVALUATION 9.2-19 9.2.2.5 LEAKAGE PROVISIONS 9.2-20 9.2.2.6 INCIDENTAL CONTROL 9.2-21 9.2.2.7 INSTRUMENT APPLICATIONS 9.2-21 9.2.2.8 MALFUNCTION ANALYSIS 9.2-23 9.2.2.9 TESTS AND INSPECTIONS - HISTORICAL INFORMATION 9.2-23 9.2.2.10 CODES AND CLASSIFICATION 9.2-24 9.2.3 DEMINERALIZED WATER MAKEUP SYSTEM 9.2-24 9.2.3.1 DESIGN BASES 9.2-24 9.2.3.2 SYSTEM DESCRIPTION 9.2-24 9.2.3.3 SAFETY EVALUATION 9.2-25 9.2.3.4 TEST AND INSPECTION 9.2-25 9.2.3.5 INSTRUMENTATION APPLICATIONS 9.2-25 9.2.4 POTABLE AND SANITARY WATER SYSTEMS 9.2-26 9.2.4.1 POTABLE WATER SYSTEM 9.2-26 9.2.4.2 SANITARY WATER SYSTEM 9.2-27 9.2.5 ULTIMATE HEAT SINK 9.2-30 9.2.5.1 GENERAL DESCRIPTION 9.2-30 9.2.5.2 DESIGN BASES 9.2-30 9.2.5.3 SAFETY EVALUATION 9.2-31 9.2.5.4 INSTRUMENTATION APPLICATION 9.2-33 9.2.6 CONDENSATE STORAGE FACILITIES 9.2-33 9.2.6.1 DESIGN BASES 9.2-33 9.2.6.2 SYSTEM DESCRIPTION 9.2-33 9.2.6.3 SAFETY EVALUATION 9.2-34 Table of Contents 1-xli

WATTS BAR TABLE OF CONTENTS Section Title Page 9.2.6.4 TEST AND INSPECTIONS 9.2-35 9.2.6.5 INSTRUMENT APPLICATIONS 9.2-35 9.2.7 REFUELING WATER STORAGE TANK 9.2-35 9.2.7.1 ECCS PUMPS NET POSITIVE SUCTION HEAD (NPSH) 9.2-37 9.2.8 RAW COOLING WATER SYSTEM 9.2-39 9.2.8.1 DESIGN BASES 9.2-39 9.2.8.2 SYSTEM DESCRIPTION 9.2-39 9.2.8.3 SAFETY EVALUATION 9.2-42 9.2.8.4 TESTS AND INSPECTION 9.2-42 9.3 PROCESS AUXILIARIES 9.3-1 9.3.1 COMPRESSED AIR SYSTEM 9.3-1 9.3.1.1 DESIGN BASIS 9.3-1 9.3.1.2 SYSTEM DESCRIPTION 9.3-1 9.3.1.3 SAFETY EVALUATION 9.3-2 9.3.1.4 TESTS AND INSPECTIONS 9.3-5 9.3.1.5 INSTRUMENTATION APPLICATIONS 9.3-5 9.3.2 PROCESS SAMPLING SYSTEM 9.3-5 9.3.2.1 DESIGN BASIS 9.3-5 9.3.2.2 SYSTEM DESCRIPTION 9.3-5 9.3.2.3 SAFETY EVALUATION 9.3-8 9.3.2.4 TESTS AND INSPECTIONS 9.3-8 9.3.2.5 INSTRUMENTATION APPLICATIONS 9.3-8 9.3.2.6 POSTACCIDENT SAMPLING SUBSYSTEM - (UNIT 1 ONLY) 9.3-8 9.3.3 EQUIPMENT AND FLOOR DRAINAGE SYSTEM 9.3-12 9.3.3.1 DESIGN BASES 9.3-12 9.3.3.2 SYSTEM DESIGN 9.3-12 9.3.3.3 DRAINS - REACTOR BUILDING 9.3-15 9.3.3.4 DESIGN EVALUATION 9.3-15 9.3.3.5 TESTS AND INSPECTIONS 9.3-15 9.3.3.6 INSTRUMENTATION APPLICATION 9.3-15 9.3.3.7 DRAIN LIST 9.3-15 9.3.4 CHEMICAL AND VOLUME CONTROL SYSTEM 9.3-16 9.3.4.1 DESIGN BASES 9.3-16 9.3.4.2 SYSTEM DESCRIPTION 9.3-17 1-xlii Table of Contents

WATTS BAR TABLE OF CONTENTS Section Title Page 9.3.4.3 SAFETY EVALUATION 9.3-36 9.3.4.4 TESTS AND INSPECTIONS 9.3-38 9.3.4.5 INSTRUMENTATION APPLICATION 9.3-39 9.3.5 FAILED FUEL DETECTION SYSTEM 9.3-39 9.3.6 AUXILIARY CHARGING SYSTEM 9.3-39 9.3.6.1 DESIGN BASES 9.3-39 9.3.6.2 SYSTEM DESIGN DESCRIPTION 9.3-40 9.3.6.3 DESIGN EVALUATION 9.3-41 9.3.6.4 TESTS AND INSPECTION 9.3-41 9.3.6.5 INSTRUMENT APPLICATION 9.3-41 9.3.7 BORON RECYCLE SYSTEM 9.3-42 9.3.8 HEAT TRACING 9.3-42 9.4 AIR CONDITIONING, HEATING, COOLING, AND VENTILATION SYSTEMS 9.4-1 9.4.1 CONTROL ROOM AREA VENTILATION SYSTEM 9.4-1 9.4.1.1 DESIGN BASES 9.4-1 9.4.1.2 SYSTEM DESCRIPTION 9.4-3 9.4.1.3 SAFETY EVALUATION 9.4-7 9.4.1.4 TESTS AND INSPECTION 9.4-8 9.4.2 FUEL HANDLING AREA VENTILATION SYSTEM 9.4-9 9.4.2.1 DESIGN BASES 9.4-9 9.4.2.2 SYSTEM DESCRIPTION 9.4-10 9.4.2.3 SAFETY EVALUATION 9.4-11 9.4.2.4 INSPECTION AND TESTING 9.4-12 9.4.3 AUXILIARY BUILDING AND RADWASTE AREA VENTILATION SYSTEM 9.4-12 9.4.3.1 DESIGN BASES 9.4-12 9.4.3.2 SYSTEM DESCRIPTION 9.4-13 9.4.3.3 SAFETY EVALUATION 9.4-18 9.4.3.4 INSPECTION AND TESTING REQUIREMENTS 9.4-23 9.4.4 TURBINE BUILDING AREA VENTILATION SYSTEM 9.4-23 9.4.4.1 DESIGN BASES 9.4-23 9.4.4.2 SYSTEM DESCRIPTION 9.4-23 9.4.4.3 SAFETY EVALUATION 9.4-26 9.4.4.4 INSPECTION AND TESTING REQUIREMENTS 9.4-26 Table of Contents 1-xliii

WATTS BAR TABLE OF CONTENTS Section Title Page 9.4.5 ENGINEERED SAFETY FEATURE VENTILATION SYSTEMS 9.4-26 9.4.5.1 ERCW INTAKE PUMPING STATION (IPS) 9.4-26 9.4.5.2 DIESEL GENERATOR BUILDINGS 9.4-28 9.4.5.3 AUXILIARY BUILDING ENGINEERED SAFETY FEATURES (ESF) EQUIPMENT COOLERS 9.4-33 9.4.6 REACTOR BUILDING PURGE VENTILATING SYSTEM (RBPVS) 9.4-37 9.4.6.1 DESIGN BASES 9.4-37 9.4.6.2 SYSTEM DESCRIPTION 9.4-40 9.4.6.3 SAFETY EVALUATION 9.4-41 9.4.6.4 INSPECTION AND TESTING REQUIREMENTS 9.4-43 9.4.7 CONTAINMENT AIR COOLING SYSTEM 9.4-43 9.4.7.1 DESIGN BASES 9.4-43 9.4.7.2 SYSTEM DESCRIPTION 9.4-44 9.4.7.3 SAFETY EVALUATION 9.4-47 9.4.7.4 TEST AND INSPECTION REQUIREMENTS 9.4-47 9.4.8 CONDENSATE DEMINERALIZER WASTE EVAPORATOR BUILDING ENVIRONMENTAL CONTROL SYSTEM 9.4-48 9.4.9 POSTACCIDENT SAMPLING FACILITY (PASF) ENVIRONMENTAL CONTROL SYSTEM (UNIT 1 ONLY) 9.4-48 9.5 OTHER AUXILIARY SYSTEMS 9.5-1 9.5.1 FIRE PROTECTION SYSTEM 9.5-1 9.5.1.1 DELETED BY AMENDMENT 87 9.5-1 9.5.1.2 DELETED BY AMENDMENT 87 9.5-1 9.5.1.3 DELETED BY AMENDMENT 87 9.5-1 9.5.1.4 DELETED BY AMENDMENT 87 9.5-1 9.5.1.5 DELETED BY AMENDMENT 87 9.5-1 9.5.2 PLANT COMMUNICATIONS SYSTEM 9.5-1 9.5.2.1 DESIGN BASES 9.5-1 9.5.2.2 GENERAL DESCRIPTION INTRAPLANT COMMUNICATIONS 9.5-1 9.5.2.3 GENERAL DESCRIPTION INTERPLANT SYSTEM 9.5-4 9.5.2.4 EVALUATION 9.5-5 9.5.2.5 INSPECTION AND TESTS 9.5-7 9.5.3 LIGHTING SYSTEMS 9.5-8 9.5.3.1 DESIGN BASES 9.5-8 1-xliv Table of Contents

WATTS BAR TABLE OF CONTENTS Section Title Page 9.5.

3.2 DESCRIPTION

OF THE PLANT LIGHTING SYSTEM 9.5-8 9.5.3.3 DIESEL GENERATOR BUILDING LIGHTING SYSTEM 9.5-9 9.5.3.4 SAFETY RELATED FUNCTIONS OF THE LIGHTING SYSTEMS 9.5-10 9.5.3.5 INSPECTION AND TESTING REQUIREMENTS 9.5-10 9.5.4 DIESEL GENERATOR FUEL OIL STORAGE AND TRANSFER SYSTEM 9.5-10 9.5.4.1 DESIGN BASIS 9.5-10 9.5.4.2 SYSTEM DESCRIPTION 9.5-11 9.5.4.3 SAFETY EVALUATION 9.5-14 9.5.4.4 TESTS AND INSPECTIONS 9.5-15 9.5.5 DIESEL GENERATOR COOLING WATER SYSTEM 9.5-15 9.5.5.1 DESIGN BASES 9.5-15 9.5.5.2 SYSTEM DESCRIPTION 9.5-15 9.5.5.3 SAFETY EVALUATION 9.5-16 9.5.5.4 TESTS AND INSPECTIONS 9.5-16 9.5.6 DIESEL GENERATOR STARTING SYSTEM 9.5-17 9.5.6.1 DESIGN BASES 9.5-17 9.5.6.2 SYSTEM DESCRIPTION 9.5-17 9.5.6.3 SAFETY EVALUATION 9.5-18 9.5.6.4 TESTS AND INSPECTIONS 9.5-18 9.5.7 DIESEL ENGINE LUBRICATION SYSTEM 9.5-18 9.5.7.1 DESIGN BASES 9.5-18 9.5.7.2 SYSTEM DESCRIPTION 9.5-19 9.5.7.3 SAFETY EVALUATION 9.5-20 9.5.7.4 TEST AND INSPECTIONS 9.5-21 9.5.8 DIESEL GENERATOR COMBUSTION AIR INTAKE AND EXHAUST SYSTEM 9.5-21 9.5.8.1 DESIGN BASES 9.5-21 9.5.8.2 SYSTEM DESCRIPTIONS 9.5-21 9.5.8.3 SAFETY EVALUATION 9.5-22 9.5.8.4 TESTS AND INSPECTION 9.5-22 10.0 MAIN STEAM AND POWER CONVERSION SYSTEMS 10.1

SUMMARY

DESCRIPTION 10.1-1 Table of Contents 1-xlv

WATTS BAR TABLE OF CONTENTS Section Title Page 10.2 TURBINE-GENERATOR 10.2-1 10.2.1 DESIGN BASES 10.2-1 10.

2.2 DESCRIPTION

10.2-1 10.2.3 TURBINE ROTOR AND DISC INTEGRITY 10.2-5 10.2.3.1 MATERIALS SELECTION 10.2-5 10.2.3.2 FRACTURE TOUGHNESS 10.2-8 10.2.3.3 HIGH TEMPERATURE PROPERTIES 10.2-9 10.2.3.4 TURBINE DISC DESIGN 10.2-10 10.2.3.5 PRESERVICE INSPECTION 10.2-10 10.2.3.6 INSERVICE INSPECTION 10.2-11 10.2.4 EVALUATION 10.2-13 10.3 MAIN STEAM SUPPLY SYSTEM 10.3-1 10.3.1 DESIGN BASES 10.3-1 10.3.2 SYSTEM DESCRIPTION 10.3-1 10.3.2.1 SYSTEM DESIGN 10.3-1 10.3.2.2 MATERIAL COMPATIBILITY, CODES, AND STANDARDS 10.3-2 10.3.3 DESIGN EVALUATION 10.3-2 10.3.4 INSPECTION AND TESTING REQUIREMENTS 10.3-3 10.3.5 WATER CHEMISTRY 10.3-4 10.3.5.1 PURPOSE 10.3-4 10.3.5.2 FEEDWATER CHEMISTRY SPECIFICATIONS 10.3-4 10.3.5.3 OPERATING MODES 10.3-4 10.3.5.4 EFFECT OF WATER CHEMISTRY ON THE RADIOACTIVE IODINE PARTITION COEFFICIENT 10.3-5 10.3.6 STEAM AND FEEDWATER SYSTEM MATERIALS 10.3-6 10.3.6.1 FRACTURE TOUGHNESS 10.3-6 10.3.6.2 MATERIALS SELECTION AND FABRICATION 10.3-6 10.4 OTHER FEATURES OF STEAM AND POWER CONVERSION SYSTEM 10.4-1 10.4.1 MAIN CONDENSER 10.4-1 10.4.1.1 DESIGN BASES 10.4-1 10.4.1.2 SYSTEM DESCRIPTION 10.4-1 10.4.1.3 SAFETY EVALUATION 10.4-4 10.4.1.4 INSPECTION AND TESTING 10.4-5 1-xlvi Table of Contents

WATTS BAR TABLE OF CONTENTS Section Title Page 10.4.1.5 INSTRUMENTATION 10.4-5 10.4.2 MAIN CONDENSER EVACUATION SYSTEM 10.4-5 10.4.2.1 DESIGN BASES 10.4-5 10.4.2.2 SYSTEM DESCRIPTION 10.4-5 10.4.2.3 SAFETY EVALUATION 10.4-6 10.4.2.4 INSPECTION AND TESTING 10.4-6 10.4.2.5 INSTRUMENTATION 10.4-6 10.4.3 TURBINE GLAND SEALING SYSTEM 10.4-7 10.4.3.1 DESIGN BASES 10.4-7 10.4.3.2 SYSTEM DESCRIPTION 10.4-7 10.4.3.3 SAFETY EVALUATION 10.4-7 10.4.3.4 INSPECTION AND TESTING 10.4-8 10.4.3.5 INSTRUMENTATION 10.4-8 10.4.4 TURBINE BYPASS SYSTEM 10.4-8 10.4.4.1 DESIGN BASES 10.4-8 10.4.4.2 SYSTEM DESCRIPTION 10.4-8 10.4.4.3 SAFETY EVALUATION 10.4-9 10.4.4.4 INSPECTION AND TESTING 10.4-10 10.4.4.5 INSTRUMENTATION 10.4-10 10.4.5 CONDENSER CIRCULATING WATER SYSTEM 10.4-11 10.4.5.1 DESIGN BASIS 10.4-11 10.4.5.2 SYSTEM DESCRIPTION 10.4-11 10.4.5.3 SAFETY EVALUATION 10.4-13 10.4.5.4 INSPECTION AND TESTING 10.4-14 10.4.5.5 INSTRUMENTATION APPLICATION 10.4-14 10.4.6 CONDENSATE POLISHING DEMINERALIZER SYSTEM 10.4-15 10.4.6.1 DESIGN BASES - POWER CONVERSION 10.4-15 10.4.6.2 SYSTEM DESCRIPTION 10.4-16 10.4.6.3 SAFETY EVALUATION 10.4-17 10.4.6.4 INSPECTION AND TESTING 10.4-18 10.4.6.5 INSTRUMENTATION 10.4-18 10.4.7 CONDENSATE AND FEEDWATER SYSTEMS 10.4-19 10.4.7.1 DESIGN BASES 10.4-19 10.4.7.2 SYSTEM DESCRIPTION 10.4-19 Table of Contents 1-xlvii

WATTS BAR TABLE OF CONTENTS Section Title Page 10.4.7.3 SAFETY EVALUATION 10.4-27 10.4.7.4 INSPECTION AND TESTING 10.4-29 10.4.7.5 INSTRUMENTATION 10.4-29 10.4.8 STEAM GENERATOR BLOWDOWN SYSTEM 10.4-29 10.4.8.1 DESIGN BASES 10.4-29 10.4.8.2 SYSTEM DESCRIPTION AND OPERATION 10.4-30 10.4.8.3 SAFETY EVALUATION 10.4-31 10.4.8.4 INSPECTIONS AND TESTING 10.4-32 10.4.9 AUXILIARY FEEDWATER SYSTEM 10.4-32 10.4.9.1 DESIGN BASES 10.4-32 10.4.9.2 SYSTEM DESCRIPTION 10.4-33 10.4.9.3 SAFETY EVALUATION 10.4-34 10.4.9.4 INSPECTION AND TESTING REQUIREMENTS 10.4-38 10.4.9.5 INSTRUMENTATION REQUIREMENTS 10.4-38 11.0 RADIOACTIVE WASTE MANAGEMENT 11.1 SOURCE TERMS 11.1-1 11.1.1 HISTORICAL DESIGN MODEL FOR RADIOACTIVITIES IN SYSTEMS AND COMPONENTS 11.1-1 11.1.1.1 REACTOR COOLANT HISTORICAL DESIGN ACTIVITY 11.1-1 11.1.1.2 VOLUME CONTROL TANK HISTORICAL DESIGN ACTIVITY 11.1-2 11.1.1.3 PRESSURIZER HISTORICAL DESIGN ACTIVITY 11.1-2 11.1.1.4 GASEOUS WASTE PROCESSING SYSTEM HISTORICAL DESIGN ACTIVITIES 11.1-2 11.1.1.5 SECONDARY COOLANT HISTORICAL DESIGN ACTIVITIES 11.1-2 11.1.2 REALISTIC MODEL FOR RADIOACTIVITIES IN SYSTEMS AND COMPONENTS 11.1-2 11.1.3 PLANT LEAKAGE 11.1-3 11.1.4 ADDITIONAL SOURCES 11.1-3 11.2 LIQUID WASTE SYSTEMS 11.2-1 11.2.1 DESIGN OBJECTIVES 11.2-1 11.2.2 SYSTEMS DESCRIPTIONS 11.2-1 11.2.3 SYSTEM DESIGN 11.2-4 11.2.3.1 COMPONENT DESIGN 11.2-4 1-xlviii Table of Contents

WATTS BAR TABLE OF CONTENTS Section Title Page 11.2.3.2 INSTRUMENTATION DESIGN 11.2-9 11.2.4 OPERATING PROCEDURE 11.2-10 11.2.5 PERFORMANCE TESTS 11.2-16 11.2.6 ESTIMATED RELEASES 11.2-17 11.2.6.1 NRC REQUIREMENTS 11.2-17 11.2.6.2 WESTINGHOUSE PWR RELEASE EXPERIENCE 11.2-17 11.2.6.3 EXPECTED LIQUID WASTE PROCESSING SYSTEM RELEASES 11.2-17 11.2.6.4 TURBINE BUILDING (TB) DRAINS 11.2-17 11.2.6.5 ESTIMATED TOTAL LIQUID RELEASES 11.2-18 11.2.7 RELEASE POINTS 11.2-20 11.2.8 DILUTION FACTORS 11.2-21 11.2.9 ESTIMATED DOSES FROM RADIONUCLIDES IN LIQUID EFFLUENTS 11.2-21 11.2.9.1 ASSUMPTIONS AND CALCULATIONAL METHODS 11.2-21 11.2.9.2

SUMMARY

OF DOSE FROM RADIONUCLIDES IN LIQUID EFFLUENTS 11.2-23 11.3 GASEOUS WASTE SYSTEMS 11.3-1 11.3.1 DESIGN BASES 11.3-1 11.3.2 SYSTEM DESCRIPTIONS 11.3-1 11.3.3 SYSTEM DESIGN 11.3-3 11.3.3.1 COMPONENT DESIGN 11.3-3 11.3.3.2 INSTRUMENTATION DESIGN 11.3-4 11.3.4 OPERATING PROCEDURE 11.3-4 11.3.5 PERFORMANCE TESTS 11.3-6 11.3.6 DELETED BY AMENDMENT 77 11.3-6 11.3.7 RADIOACTIVE RELEASES 11.3-6 11.3.7.1 NRC REQUIREMENTS 11.3-6 11.3.7.2 WESTINGHOUSE PWR EXPERIENCE RELEASES 11.3-7 11.3.7.3 EXPECTED GASEOUS WASTE PROCESSING SYSTEM RELEASES 11.3-7 11.3.7.4 RELEASES FROM VENTILATION SYSTEMS 11.3-7 11.3.7.5 ESTIMATED TOTAL RELEASES 11.3-7 11.3.8 RELEASE POINTS 11.3-8 11.3.9 ATMOSPHERIC DILUTION 11.3-9 Table of Contents 1-xlix

WATTS BAR TABLE OF CONTENTS Section Title Page 11.3.10 ESTIMATED DOSES FROM RADIONUCLIDES IN GASEOUS EFFLUENTS 11.3-9 11.3.10.1 ASSUMPTIONS AND CALCULATIONAL METHODS 11.3-10 11.3.10.2

SUMMARY

OF ANNUAL POPULATION DOSES 11.3-12 11.4 PROCESS AND EFFLUENT RADIOLOGICAL MONITORING AND SAMPLING SYSTEM 11.4-1 11.4.1 DESIGN OBJECTIVES 11.4-1 11.4.2 CONTINUOUS MONITORS 11.4-2 11.4.2.1 LIQUID MONITORS 11.4-2 11.4.2.2 GASEOUS MONITORS 11.4-4 11.4.3 SAMPLING 11.4-8 11.4.4 CALIBRATION AND MAINTENANCE 11.4-9 11.5 SOLID WASTE MANAGEMENT SYSTEM 11.5-1 11.5.1 DESIGN OBJECTIVES 11.5-1 11.5.2 SYSTEM INPUTS 11.5-1 11.5.3 SYSTEMS DESCRIPTION 11.5-1 11.5.3.1 WET ACTIVE WASTE HANDLING 11.5-1 11.5.3.2 DRY ACTIVE WASTE HANDLING 11.5-3 11.5.3.3 MISCELLANEOUS WASTE HANDLING 11.5-4 11.5.4 EQUIPMENT OPERATION 11.5-4 11.5.4.1 MOBILE SOLIDIFICATION SYSTEM (MSS) 11.5-4 11.5.5 STORAGE FACILITIES 11.5-4 11.5.5.1 INPLANT STORAGE AREA 11.5-4 11.5.5.2 OUTSIDE RADWASTE STORAGE 11.5-4 11.5.6 SHIPMENT 11.5-5 11.6 OFFSITE RADIOLOGICAL MONITORING PROGRAM 11.6-1 11.6.1 EXPECTED BACKGROUND 11.6-2 11.6.2 CRITICAL PATHWAYS TO MAN 11.6-2 11.6.2.1 DOSES FROM GASEOUS EFFLUENTS 11.6-3 11.6.2.2 INTERNAL DOSES FROM LIQUID EFFLUENTS 11.6-3 11.6.3 SAMPLING MEDIA, LOCATIONS, AND FREQUENCY 11.6-4 11.6.4 ANALYTICAL SENSITIVITY 11.6-4 11.6.5 DATA ANALYSIS AND PRESENTATION 11.6-4 1-l Table of Contents

WATTS BAR TABLE OF CONTENTS Section Title Page 11.6.6 PROGRAM STATISTICAL SENSITIVITY 11.6-4 11A TRITIUM CONTROL 11A SYSTEM SOURCES 11A-1 11A.1 THE FISSION SOURCE 11A-1 11A.2 CONTROL ROD SOURCE 11A-1 11A.3 BORIC ACID SOURCE 11A-1 11A.4 BURNABLE SHIM ROD SOURCE 11A-2 11A.2 TRITIUM RELEASES 11A-2 11A.3 DESIGN BASES 11A-2 11A.4 DESIGN EVALUATION 11A-2 11A.5 TRITIUM LEAD TEST ASSEMBLY 11A-3 11A.6 TRITIUM PRODUCING BURNABLE ABSORBER ROD (TPBAR) SOURCE (UNIT 1 ONLY) 11A-3 12.0 RADIATION PROTECTION 12.1 ASSURING THAT OCCUPATIONAL RADIATION EXPOSURES ARE AS LOW AS REASONABLY ACHIEVABLE (ALARA) 12.1-1 12.1.1 POLICY CONSIDERATIONS 12.1-1 12.1.2 DESIGN CONSIDERATIONS 12.1-1 12.1.3 ALARA OPERATIONAL CONSIDERATIONS 12.1-1 12.2 RADIATION SOURCES 12.2-1 12.2.1 CONTAINED SOURCES 12.2-1 12.2.1.1 PRIMARY SYSTEM SOURCES 12.2-1 12.2.1.2 AUXILIARY SYSTEMS SOURCES 12.2-2 12.2.1.3 SOURCES DURING REFUELING 12.2-8 12.2.1.4 MAXIMUM HYPOTHETICAL ACCIDENT (MHA) SOURCES 12.2-8 12.2.1.5 CONDENSATE DEMINERALIZER WASTE EVAPORATOR 12.2-9 12.2.2 AIRBORNE RADIOACTIVE MATERIAL SOURCES 12.2-9 Table of Contents 1-li

WATTS BAR TABLE OF CONTENTS Section Title Page 12.3 RADIATION PROTECTION DESIGN FEATURES 12.3-1 12.3.1 FACILITY DESIGN FEATURES 12.3-1 12.3.2 SHIELDING 12.3-5 12.3.2.1 DESIGN OBJECTIVES 12.3-5 12.3.2.2 DESIGN DESCRIPTION 12.3-5 12.3.3 VENTILATION 12.3-18 12.3.3.1 AIRFLOW CONTROL 12.3-18 12.3.3.2 TYPICAL SYSTEM 12.3-18 12.3.3.3 ADDITIONAL RADIATION CONTROLS 12.3-19 12.3.4 AREA RADIATION AND AIRBORNE RADIOACTIVITY MONITORING INSTRUMENTATION 12.3-20 12.3.4.1 AREA RADIATION MONITORING INSTRUMENTATION 12.3-20 12.3.4.2 AIRBORNE PARTICULATE RADIOACTIVITY MONITORING 12.3-22 12.3.4.3 DELETED BY AMENDMENT 84. 12.3-24 12.3.4.4 SPECIAL RADIATION MONITORS 12.3-24 12.4 DOSE ASSESSMENT 12.4-1 12.5 RADIATION PROTECTION PROGRAM 12.5-1 12.5.1 ORGANIZATION 12.5-1 12.5.2 EQUIPMENT, INSTRUMENTATION, AND FACILITIES 12.5-2 12.5.3 PROCEDURES 12.5-4 13.0 CONDUCT OF OPERATIONS 13.1 ORGANIZATIONAL STRUCTURE OF APPLICANT 13.1-1 13.1.1 CORPORATE ORGANIZATION 13.1-1 13.1.1.1 DESIGN RESPONSIBILITIES 13.1-1 13.1.2 NUCLEAR POWER 13.1-2 13.1.2.1 OFFSITE ORGANIZATIONS 13.1-2 13.1.2.2 ONSITE ORGANIZATION 13.1-2 13.1.3 QUALIFICATION REQUIREMENTS FOR NUCLEAR FACILITY PERSONNEL 13.1-2 13.2 TRAINING PROGRAMS 13.2-1 13.2.1 ACCREDITED TRAINING PROGRAMS 13.2-1 1-lii Table of Contents

WATTS BAR TABLE OF CONTENTS Section Title Page 13.2.2 GENERAL EMPLOYEE AND FITNESS FOR DUTY TRAINING PROGRAMS 13.2-1 13.2.3 OTHER TRAINING PROGRAMS 13.2-2 13.3 EMERGENCY PLANNING 13.3-1 13.4 REVIEW AND AUDIT 13.4-1 13.4.1 ONSITE REVIEW 13.4-1 13.4.2 INDEPENDENT REVIEW AND AUDIT 13.4-1 13.5 SITE PROCEDURES 13.5-1 13.5.1 SYSTEM OF SITE PROCEDURES 13.5-1 13.5.1.1 CONFORMANCE WITH REGULATORY GUIDE 1.33 13.5-1 13.5.1.2 PREPARATION OF PROCEDURES 13.5-1 13.5.1.3 ADMINISTRATIVE PROCEDURES 13.5-2 13.5.2 OPERATING AND MAINTENANCE PROCEDURES 13.5-2 13.5.2.1 OPERATING PROCEDURES 13.5-2 13.5.2.2 OTHER PROCEDURES 13.5-3 13.6 PLANT RECORDS 13.6-1 13.6.1 PLANT HISTORY 13.6-1 13.6.2 OPERATING RECORDS 13.6-1 13.6.3 EVENT RECORDS 13.6-1 13.7 NUCLEAR SECURITY 13.7-1 13.7.1 PHYSICAL SECURITY AND CONTINGENCY PLAN 13.7-1 13.7.2 PERSONNEL AND PROGRAM EVALUATION 13.7-1 13.7.3 PHYSICAL SECURITY OF TPBARS 13.7-1 14.0 INITIAL TEST PROGRAM 14.1 SPECIFIC INFORMATION TO BE INCLUDED IN PRELIMINARY SAFETY ANALYSIS REPORT 14.1-1 14.2 TEST PROGRAM 14.2-1 14.2.1

SUMMARY

OF TEST PROGRAM AND OBJECTIVES 14.2-1 14.2.2 ORGANIZATION AND STAFFING 14.2-3 Table of Contents 1-liii

WATTS BAR TABLE OF CONTENTS Section Title Page 14.2.2.1 PREOPERATIONAL STARTUP ENGINEERING 14.2-3 14.2.2.2 PLANT OPERATING ORGANIZATION 14.2-5 14.2.2.3 NUCLEAR ASSURANCE 14.2-6 14.2.2.4 MAJOR PARTICIPATING ORGANIZATIONS 14.2-6 14.2.2.5 JOINT TEST GROUP 14.2-7 14.2.2.6 TEST REVIEW GROUP 14.2-8 14.2.2.7 PERSONNEL QUALIFICATIONS 14.2-9 14.2.3 TEST PROCEDURES AND INSTRUCTIONS 14.2-9 14.2.3.1 GENERAL 14.2-9 14.2.3.2 DEVELOPMENT OF PROCEDURES 14.2-10 14.2.3.3 REVIEW AND APPROVAL OF TEST PROCEDURES AND INSTRUCTION 14.2-10 14.2.3.4 FORMAT OF TEST INSTRUCTIONS/PROCEDURES 14.2-10 14.2.3.5 TEST INSTRUCTION/PROCEDURE REVISIONS/CHANGES 14.2-11 14.2.4 CONDUCT OF TEST PROGRAM 14.2-12 14.2.4.1 ADMINISTRATIVE PROCEDURES 14.2-12 14.2.4.2 COMPONENT TESTING 14.2-12 14.2.4.3 PREOPERATIONAL AND ACCEPTANCE TESTING 14.2-13 14.2.4.4 POWER ASCENSION TESTING 14.2-13 14.2.4.5 TEST PREREQUISITES 14.2-13 14.2.4.6 PHASE EVALUATION 14.2-13 14.2.4.7 DESIGN MODIFICATIONS 14.2-14 14.2.5 REVIEW, EVALUATION, AND APPROVAL OF TEST RESULTS 14.2-14 14.2.6 TEST RECORDS 14.2-14 14.2.7 CONFORMANCE OF TEST PROGRAMS WITH REGULATORY GUIDES 14.2-15 14.2.8 UTILIZATION OF REACTOR OPERATING AND TESTING EXPERIENCE IN DEVELOPMENT OF TEST PROGRAM 14.2-29 14.2.9 TRIAL USE OF PLANT OPERATING AND EMERGENCY PROCEDURES 14.2-30 14.2.10 INITIAL FUEL LOADING, POSTLOADING TESTS, INITIAL CRITICALITY, LOW POWER TESTS AND POWER ASCENSION 14.2-30 14.2.10.1 FUEL LOADING 14.2-30 14.2.10.2 POSTLOADING TESTS 14.2-32 14.2.10.3 INITIAL CRITICALITY 14.2-33 1-liv Table of Contents

WATTS BAR TABLE OF CONTENTS Section Title Page 14.2.10.4 LOW POWER TESTS 14.2-33 14.2.10.5 POWER ASCENSION 14.2-33 14.2.11 TEST PROGRAM SCHEDULE 14.2-34 14.2.12 INDIVIDUAL TEST DESCRIPTIONS 14.2-35 14.2.12.1 PREOPERATIONAL TESTS 14.2-35 14.2.12.2 POWER ASCENSION TESTS 14.2-36 15.0 ACCIDENT ANALYSES 15.1 CONDITION I - NORMAL OPERATION AND OPERATIONAL TRANSIENTS 15.1-1 15.1.1 OPTIMIZATION OF CONTROL SYSTEMS 15.1-3 15.1.2 INITIAL POWER CONDITIONS ASSUMED IN ACCIDENT ANALYSES 15.1-3 15.1.2.1 POWER RATING 15.1-3 15.1.2.2 INITIAL CONDITIONS 15.1-4 15.1.2.3 POWER DISTRIBUTION 15.1-4 15.1.3 TRIP POINTS AND TIME DELAYS TO TRIP ASSUMED IN ACCIDENT ANALYSES 15.1-5 15.1.4 INSTRUMENTATION DRIFT AND CALORIMETRIC ERRORS - POWER RANGE NEUTRON FLUX 15.1-6 15.1.5 ROD CLUSTER CONTROL ASSEMBLY INSERTION CHARACTERISTIC 15.1-6 15.1.6 REACTIVITY COEFFICIENTS 15.1-7 15.1.7 FISSION PRODUCT INVENTORIES 15.1-8 15.1.7.1 RADIOACTIVITY IN THE CORE 15.1-8 15.1.7.2 RADIOACTIVITY IN THE FUEL PELLET CLAD GAP 15.1-8 15.1.8 RESIDUAL DECAY HEAT 15.1-8 15.1.8.1 FISSION PRODUCT DECAY ENERGY 15.1-9 15.1.8.2 DECAY OF U-238 CAPTURE PRODUCTS 15.1-9 15.1.8.3 RESIDUAL FISSIONS 15.1-10 15.1.8.4 DISTRIBUTION OF DECAY HEAT FOLLOWING LOSS OF COOLANT ACCIDENT 15.1-10 15.1.9 COMPUTER CODES UTILIZED 15.1-11 15.1.9.1 FACTRAN 15.1-11 15.1.9.2 LOFTRAN 15.1-11 15.1.9.3 LEOPARD 15.1-12 15.1.9.4 TURTLE 15.1-12 Table of Contents 1-lv

WATTS BAR TABLE OF CONTENTS Section Title Page 15.1.9.5 TWINKLE 15.1-12 15.1.9.6 VIPRE-01 15.1-13 15.1.9.7 LOFTTR 15.1-13 15.2 CONDITION II - FAULTS OF MODERATE FREQUENCY 15.2-1 15.2.1 UNCONTROLLED ROD CLUSTER CONTROL ASSEMBLY BANK WITHDRAWAL FROM A SUBCRITICAL CONDITION 15.2-2 15.2.1.1 IDENTIFICATION OF CAUSES AND ACCIDENT DESCRIPTION 15.2-2 15.2.1.2 ANALYSIS OF EFFECTS AND CONSEQUENCES 15.2-3 15.2.

1.3 CONCLUSION

S 15.2-5 15.2.2 UNCONTROLLED ROD CLUSTER CONTROL ASSEMBLY BANK WITHDRAWAL AT POWER 15.2-5 15.2.2.1 IDENTIFICATION OF CAUSES AND ACCIDENT DESCRIPTION 15.2-5 15.2.2.2 ANALYSIS OF EFFECTS AND CONSEQUENCES 15.2-7 15.2.

2.3 CONCLUSION

S 15.2-9 15.2.3 ROD CLUSTER CONTROL ASSEMBLY MISALIGNMENT 15.2-9 15.2.3.1 IDENTIFICATION OF CAUSES AND ACCIDENT DESCRIPTION 15.2-9 15.2.3.2 ANALYSIS OF EFFECTS AND CONSEQUENCES 15.2-11 15.2.

3.3 CONCLUSION

S 15.2-13 15.2.4 UNCONTROLLED BORON DILUTION 15.2-13 15.2.4.1 IDENTIFICATION OF CAUSES AND ACCIDENT DESCRIPTION 15.2-13 15.2.4.2 ANALYSIS OF EFFECTS AND CONSEQUENCES 15.2-15 15.2.

4.3 CONCLUSION

S 15.2-18 15.2.5 PARTIAL LOSS OF FORCED REACTOR COOLANT FLOW 15.2-20 15.2.5.1 IDENTIFICATION OF CAUSES AND ACCIDENT DESCRIPTION 15.2-20 15.2.5.2 ANALYSIS OF EFFECTS AND CONSEQUENCES 15.2-21 15.2.

5.3 CONCLUSION

S 15.2-22 15.2.6 STARTUP OF AN INACTIVE REACTOR COOLANT LOOP 15.2-22 15.2.6.1 IDENTIFICATION OF CAUSES AND ACCIDENT DESCRIPTION 15.2-22 15.2.

6.2 CONCLUSION

S 15.2-23 15.2.7 LOSS OF EXTERNAL ELECTRICAL LOAD AND/OR TURBINE TRIP 15.2-23 15.2.7.1 IDENTIFICATION OF CAUSES AND ACCIDENT DESCRIPTION 15.2-23 15.2.7.2 ANALYSIS OF EFFECTS AND CONSEQUENCES 15.2-24 15.2.

7.3 CONCLUSION

S 15.2-26 15.2.8 LOSS OF NORMAL FEEDWATER 15.2-26 1-lvi Table of Contents

WATTS BAR TABLE OF CONTENTS Section Title Page 15.2.8.1 IDENTIFICATION OF CAUSES AND ACCIDENT DESCRIPTION 15.2-26 15.2.8.2 ANALYSIS OF EFFECTS AND CONSEQUENCES 15.2-27 15.2.

8.3 CONCLUSION

S 15.2-30 15.2.9 COINCIDENT LOSS OF ONSITE AND EXTERNAL (OFFSITE) AC POWER TO THE STATION - LOSS OF OFFSITE POWER TO THE STATION AUXILIARIES 15.2-30 15.2.10 EXCESSIVE HEAT REMOVAL DUE TO FEEDWATER SYSTEM MALFUNCTIONS 15.2-31 15.2.10.1 IDENTIFICATION OF CAUSES AND ACCIDENT DESCRIPTION 15.2-31 15.2.10.2 ANALYSIS OF EFFECTS AND CONSEQUENCES 15.2-31 15.2.

10.3 CONCLUSION

S 15.2-34 15.2.11 EXCESSIVE LOAD INCREASE INCIDENT 15.2-34 15.2.11.1 IDENTIFICATION OF CAUSES AND ACCIDENT DESCRIPTION 15.2-34 15.2.11.2 ANALYSIS OF EFFECTS AND CONSEQUENCES 15.2-34 15.2.

11.3 CONCLUSION

S 15.2-36 15.2.12 ACCIDENTAL DEPRESSURIZATION OF THE REACTOR COOLANT SYSTEM 15.2-36 15.2.12.1 IDENTIFICATION OF CAUSES AND ACCIDENT DESCRIPTION 15.2-36 15.2.12.2 ANALYSIS OF EFFECTS AND CONSEQUENCES 15.2-36 15.2.

12.3 CONCLUSION

S 15.2-37 15.2.13 ACCIDENTAL DEPRESSURIZATION OF THE MAIN STEAM SYSTEM 15.2-38 15.2.13.1 IDENTIFICATION OF CAUSES AND ACCIDENT DESCRIPTION 15.2-38 15.2.13.2 ANALYSIS OF EFFECTS AND CONSEQUENCES 15.2-39 15.2.

13.3 CONCLUSION

S 15.2-40 15.2.14 INADVERTENT OPERATION OF EMERGENCY CORE COOLING SYSTEM 15.2-40 15.2.14.1 IDENTIFICATION OF CAUSES AND ACCIDENT DESCRIPTION 15.2-40 15.2.14.2 ANALYSIS OF EFFECTS AND CONSEQUENCES 15.2-42 15.2.

14.3 CONCLUSION

S 15.2-45 15.2.15 CHEMICAL AND VOLUME CONTROL SYSTEM MALFUNCTION DURING POWER OPERATION 15.2-45 15.2.15.1 IDENTIFICATION OF CAUSES AND ACCIDENT DESCRIPTION 15.2-45 15.2.15.2 ANALYSIS OF EFFECTS AND CONSEQUENCES 15.2-46 15.2.

15.3 CONCLUSION

S 15.2-47 Table of Contents 1-lvii

WATTS BAR TABLE OF CONTENTS Section Title Page 15.3 CONDITION III - INFREQUENT FAULTS 15.3-1 15.3.1 LOSS OF REACTOR COOLANT FROM SMALL RUPTURED PIPES OR FROM CRACKS IN LARGE PIPES WHICH ACTUATE THE EMERGENCY CORE COOLING SYSTEM 15.3-1 15.3.1.1 IDENTIFICATION OF CAUSES AND ACCIDENT DESCRIPTION 15.3-1 15.3.1.2 ANALYSIS OF EFFECTS AND CONSEQUENCES 15.3-2 15.3.1.3 REACTOR COOLANT SYSTEM PIPE BREAK RESULTS 15.3-3 15.3.

1.4 CONCLUSION

S - THERMAL ANALYSIS 15.3-5 15.3.2 MINOR SECONDARY SYSTEM PIPE BREAKS 15.3-5 15.3.2.1 IDENTIFICATION OF CAUSES AND ACCIDENT DESCRIPTION 15.3-5 15.3.2.2 ANALYSIS OF EFFECTS AND CONSEQUENCES 15.3-5 15.3.

2.3 CONCLUSION

S 15.3-5 15.3.3 INADVERTENT LOADING OF A FUEL ASSEMBLY INTO AN IMPROPER POSITION 15.3-6 15.3.3.1 IDENTIFICATION OF CAUSES AND ACCIDENT DESCRIPTION 15.3-6 15.3.3.2 ANALYSIS OF EFFECTS AND CONSEQUENCES 15.3-6 15.3.

3.3 CONCLUSION

S 15.3-7 15.3.4 COMPLETE LOSS OF FORCED REACTOR COOLANT FLOW 15.3-7 15.3.4.1 IDENTIFICATION OF CAUSES AND ACCIDENT DESCRIPTION 15.3-7 15.3.4.2 ANALYSIS OF EFFECTS AND CONSEQUENCES 15.3-9 15.3.

4.3 CONCLUSION

S 15.3-10 15.3.5 WASTE GAS DECAY TANK RUPTURE 15.3-10 15.3.5.1 IDENTIFICATION OF CAUSES AND ACCIDENT DESCRIPTION 15.3-10 15.3.5.2 ANALYSIS OF EFFECTS AND CONSEQUENCES 15.3-10 15.3.6 SINGLE ROD CLUSTER CONTROL ASSEMBLY WITHDRAWAL AT FULL POWER 15.3-10 15.3.6.1 IDENTIFICATION OF CAUSES AND ACCIDENT DESCRIPTION 15.3-10 15.3.6.2 ANALYSIS OF EFFECTS AND CONSEQUENCES 15.3-11 15.3.

6.3 CONCLUSION

S 15.3-12 15.4 CONDITION IV - LIMITING FAULTS 15.4-1 15.4.1 MAJOR REACTOR COOLANT SYSTEM PIPE RUPTURES (LOSS OF COOLANT ACCIDENT) 15.4-1 15.4.1.1 THERMAL ANALYSIS 15.4-2 15.4.1.2 HYDROGEN PRODUCTION AND ACCUMULATION 15.4-12 1-lviii Table of Contents

WATTS BAR TABLE OF CONTENTS Section Title Page 15.4.2 MAJOR SECONDARY SYSTEM PIPE RUPTURE 15.4-12 15.4.2.1 MAJOR RUPTURE OF A MAIN STEAM LINE 15.4-12 15.4.2.2 MAJOR RUPTURE OF A MAIN FEEDWATER PIPE 15.4-19 15.4.3 STEAM GENERATOR TUBE RUPTURE 15.4-23 15.4.3.1 IDENTIFICATION OF CAUSES AND ACCIDENT DESCRIPTION 15.4-23 15.4.3.2 ANALYSIS OF EFFECTS AND CONSEQUENCES 15.4-26 15.4.

3.3 CONCLUSION

S 15.4-32 15.4.4 SINGLE REACTOR COOLANT PUMP LOCKED ROTOR 15.4-32 15.4.4.1 IDENTIFICATION OF CAUSES AND ACCIDENT DESCRIPTION 15.4-32 15.4.4.2 ANALYSIS OF EFFECTS AND CONSEQUENCES 15.4-33 15.4.

4.3 CONCLUSION

S 15.4-35 15.4.5 FUEL HANDLING ACCIDENT 15.4-35 15.4.5.1 IDENTIFICATION OF CAUSES AND ACCIDENT DESCRIPTION 15.4-35 15.4.5.2 ANALYSIS OF EFFECTS AND CONSEQUENCES 15.4-35 15.4.6 RUPTURE OF A CONTROL ROD DRIVE MECHANISM HOUSING (ROD CLUSTER CONTROL ASSEMBLY EJECTION) 15.4-36 15.4.6.1 IDENTIFICATION OF CAUSES AND ACCIDENT DESCRIPTION 15.4-36 15.4.6.2 ANALYSIS OF EFFECTS AND CONSEQUENCES 15.4-39 15.4.

6.3 CONCLUSION

S 15.4-44 15.5 ENVIRONMENTAL CONSEQUENCES OF ACCIDENTS 15.5-1 15.5.1 ENVIRONMENTAL CONSEQUENCES OF A POSTULATED LOSS OF AC POWER TO THE PLANT AUXILIARIES 15.5-1 15.5.2 ENVIRONMENTAL CONSEQUENCES OF A POSTULATED WASTE GAS DECAY TANK RUPTURE 15.5-2 15.5.3 ENVIRONMENTAL CONSEQUENCES OF A POSTULATED LOSS OF COOLANT ACCIDENT 15.5-3 15.5.4 ENVIRONMENTAL CONSEQUENCES OF A POSTULATED MAIN STEAM LINE BREAK 15.5-20 15.5.5 ENVIRONMENTAL CONSEQUENCES OF A POSTULATED STEAM GENERATOR TUBE RUPTURE 15.5-21 15.5.6 ENVIRONMENTAL CONSEQUENCES OF A POSTULATED FUEL HANDLING ACCIDENT 15.5-22 15.5.6.1 FUEL HANDLING ACCIDENT BASED ON REGULATORY GUIDE 1.25 15.5-23 15.5.6.2 FUEL HANDLING ACCIDENT BASED ON REGULATORY GUIDE 1.183 15.5-24 Table of Contents 1-lix

WATTS BAR TABLE OF CONTENTS Section Title Page 15.5.6.3 FUEL HANDLING ACCIDENT RESULTS 15.5-25 15.5.7 ENVIRONMENTAL CONSEQUENCES OF A POSTULATED ROD EJECTION ACCIDENT 15.5-26 15A DOSE MODELS USED TO EVALUATE THE ENVIRONMENTAL CONSEQUENCES OF ACCIDENTS 15A.1 INTRODUCTION 15A-1 15A.2 ASSUMPTIONS 15A-1 15A.3 GAMMA DOSE AND BETA DOSE 15A-1 15A.4 THYROID INHALATION DOSE 15A-2 16.0 TECHNICAL SPECIFICATIONS 16.1 PROPOSED TECHNICAL SPECIFICATIONS (NOT USED) 16.1-1 16.2 PROPOSED FINAL TECHNICAL SPECIFICATIONS 16.2-1 16.3 RELOCATED SPECIFICATIONS 16.3-1 16.3.1 DISCUSSION 16.3-1 16.3.2 DOCUMENT CONTROL 16.3-1 16.3.3 CHANGES TO THE RELOCATED SPECIFICATIONS 16.3-1 17.0 QUALITY ASSURANCE 17-1 17.1 QUALITY ASSURANCE DURING DESIGN AND CONSTRUCTION 17-1 17.1.1 TVA ORGANIZATION 17-1 17.1.2 QUALITY ASSURANCE PROGRAM 17-1 17.1A WESTINGHOUSE QUALITY MANAGEMENT SYSTEM 17-2 17.2 QUALITY ASSURANCE FOR STATION OPERATION 17.2-1 17.2.1 IDENTIFICATION OF SAFETY-RELATED FEATURES 17.2-1 1-lx Table of Contents

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