ML21179A100
| ML21179A100 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 06/15/2021 |
| From: | Southern Nuclear Operating Co |
| To: | Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML21179A130 | List:
|
| References | |
| ND-21-0486 | |
| Download: ML21179A100 (8) | |
Text
Chapter 16 UFSAR Table of Contents Chapter 1 Introduction and General Description of the Plant Chapter 2 Site Characteristics Chapter 3 Design of Structures, Components, Equipment and Systems Chapter 4 Reactor Chapter 5 Reactor Coolant System and Connected Systems Chapter 6 Engineered Safety Features Chapter 7 Instrumentation and Controls Chapter 8 Electric Power Chapter 9 Auxiliary Systems Chapter 10 Steam and Power Conversion Chapter 11 Radioactive Waste Management Chapter 12 Radiation Protection Chapter 13 Conduct of Operation Chapter 14 Initial Test Program Chapter 15 Accident Analyses Chapter 16 Technical Specifications Chapter 17 Quality Assurance Chapter 18 Human Factors Engineering Chapter 19 Probabilistic Risk Assessment UFSAR Formatting Legend Color Description Original Westinghouse AP1000 DCD Revision 19 content (part of plant-specific DCD)
Departures from AP1000 DCD Revision 19 content (part of plant-specific DCD)
Standard FSAR content Site-specific FSAR content Linked cross-references (chapters, appendices, sections, subsections, tables, figures, and references)
VEGP 3&4 - UFSAR TABLE OF CONTENTS Section Title Page 16.1 Technical Specifications .............................................................................. 16.1-1 16.1.1 Introduction to Technical Specifications ..................................... 16.1-1 16.1.2 References ................................................................................. 16.1-2 16.2 Design Reliability Assurance Program ........................................................ 16.2-1 16.3 Investment Protection ................................................................................. 16.3-1 16.3.1 Investment Protection Short-Term Availability Controls ............. 16.3-1 16.3.2 Combined License Information ................................................... 16.3-1 16-i Revision 4
VEGP 3&4 - UFSAR LIST OF TABLES Table Number Title Page 16.3-1 List of Investment Protection Short-term Availability Controls....................... 16.3-2 16-ii Revision 4
VEGP 3&4 - UFSAR 16.1 Technical Specifications 16.1.1 Introduction to Technical Specifications LCO Selection Criteria The screening criteria of 10CFR50.36, c(2)(ii) stated below has been used to identify the structures, systems, and parameters for which Limiting Conditions for Operation (LCOs) have been included in the AP1000 Technical Specifications.
- 1. Installed instrumentation that is used to detect, and indicate in the control room, a significant abnormal degradation of the reactor coolant pressure boundary.
- 2. A process variable, design feature, or operating restriction that is an initial condition of a Design Basis Accident or Transient Analyses that either assumes the failure of or presents a challenge to the integrity of a fission product barrier.
- 3. A structure, system or component that is part of the primary success path and which functions or actuates to mitigate a Design Basis Accident or Transient that either assumes the failure of or presents a challenge to the integrity of a fission product barrier.
- 4. Structures, systems, and components which operating experience or probabilistic safety assessment has shown to be important to public health and safety.
Technical Specification Content The content of the AP1000 Technical Specifications meets the 10CFR50.36 requirements and is consistent with the Technical Specification Improvement Program, NUREG 1431, Rev. 2, to the maximum extent possible. The content differs from NUREG 1431 only as necessary to reflect technical differences between the typical Westinghouse design and the AP1000 design.
Completion Times and Surveillance Frequencies The Completion Times and Surveillance Frequencies specified in NUREG 1431 have been applied to similar Actions and Surveillances Requirements in AP1000. Refer to Westinghouse letter DCP/
NRC0891 for a discussion regarding selection of Completion Times and Surveillance Frequencies for those AP1000 Tech Specs for which no comparable NUREG 1431 system/function exists and for those AP1000 system design differences which lead to deviations from NUREG 1431 Completion Times and Surveillance Frequencies.
Shutdown Completion Times/Mode Definitions The AP1000 plant design is different from current Westinghouse designs in that the systems normally used for MODE reduction are non-safety systems; and therefore, are not covered by LCO requirements in Technical Specifications. The passive safety systems, which shut down the plant require a longer period of time to accomplish mode changes and can not reduce the RCS temperature to below 200°F.
Combined License Information The set of generic technical specifications were used as a guide in the development of the plant-specific technical specifications. The preliminary information originally provided in brackets [ ]
has been revised with the updated information, including information provided in APP-GW-GLR-064 (Reference 1) and APP-GW-GLN-075 (Reference 2). In accordance with 10 CFR Part 52, Appendix D, Section VIII.C.6, following the issuance of the license, the generic technical specifications have no further effect on the plant-specific technical specifications.
16.1-1 Revision 2
VEGP 3&4 - UFSAR 16.1.2 References
- 1. APP-GW-GLR-064, AP1000 Generic Technical Specifications Completion, Westinghouse Electric Company LLC.
- 2. APP-GW-GLN-075, AP1000 Generic Technical Specifications for Design Changes, Westinghouse Electric Company LLC.
- 3. APP-RXS-Z0R-001, Revision 3, AP1000 Generic Pressure Temperature Limits Report, April 2018.
16.1-2 Revision 2
VEGP 3&4 - UFSAR 16.2 Design Reliability Assurance Program See Section 17.4 for information on the AP1000 Design Reliability Assurance Program (D-RAP).
16.2-1 Revision 1
VEGP 3&4 - UFSAR 16.3 Investment Protection 16.3.1 Investment Protection Short-Term Availability Controls The importance of nonsafety-related systems, structures and components in the AP1000 has been evaluated. The evaluation uses PRA insights to identify systems, structures and components that are important in protecting the utilities investment and for preventing and mitigating severe accidents. To provide reasonable assurance that these systems, structures and components are functional during anticipated events short-term availability controls are provided. These investment protection systems, structures and components are also included in the D-RAP/OPRAAs (refer to Section 17.4), which provides confidence that availability and reliability are designed into the plant and that availability and reliability are maintained throughout plant life through the use of reliability assurance activities as listed in Subsection 17.4.4. Technical Specifications are not required for these systems, structures and components because they do not meet the selection criteria applied to the AP1000 (refer to Subsection 16.1.1).
Table 16.3-1 lists nonsafety-related systems, structures and components that have investment protection short-term availability controls which are contained in the Technical Requirements Manual (TRM). The portions of the TRM containing these short-term availability controls are incorporated by reference into this subsection as FSAR Tier 2 information. These are identified in the TRM Table of Contents with FSAR Scope as DCD-Plant Specific (Tier 2). These short-term availability controls define:
- Equipment that shall be FUNCTIONAL
- Operational MODES when the equipment shall be FUNCTIONAL
- Testing and inspections that are used to demonstrate the equipments FUNCTIONALITY
- Operational MODES that are used for planned maintenance operations
- Remedial actions that are taken if the equipment is not FUNCTIONAL Station procedures govern and control the FUNCTIONALITY of investment protection systems, structures, and components, in accordance with the Tier 2 information within the TRM, and provide the operating staff with instruction for implementing required actions when FUNCTIONALITY requirements are not met. Procedure development is addressed in Section 13.5. TRM Use and Application Sections 1.2, 1.3, and 1.4, as well as TRM Applicability Sections TR 3.0.1, TR 3.0.2, TRS 3.0.1, TRS 3.0.2, and TRS 3.0.3 constitute a portion of these procedural controls, but are not considered Tier 2 information. These, and other procedural controls, are identified in the TRM Table of Contents with FSAR Scope as Administrative and are not considered incorporated by reference as UFSAR content.
TRM Section 1.1, Definitions, contains defined terms that appear in capitalized type. TRM Section 1.1, Definitions, is also incorporated by reference into this subsection as FSAR Tier 2 information.
TRM material that is incorporated by reference as UFSAR Standard Content, is noted in the TRM Table of Contents with FSAR Scope as UFSAR Standard Content. One example of this is previous COL Appendix A, Technical Specifications, material that has been relocated to the TRM under License Amendment.
16.3.2 Combined License Information The procedure to control the functionality of investment protection systems, structures and components is addressed in Subsection 16.3.1.
16.3-1 Revision 4
VEGP 3&4 - UFSAR Table 16.3-1 List of Investment Protection Short-term Availability Controls TRM 3.3.1 Diverse Actuation System (DAS) Automatic Actuation TRM 3.6.1 Passive Containment Cooling Water Storage Tank (PCCWST) and Spent Fuel Pool Makeup - Long Term Shutdown TRM 3.6.2 Hydrogen Igniters TRM 3.7.1 Normal Residual Heat Removal System (RNS) - Reactor Coolant System (RCS)
Makeup TRM 3.7.2 Normal Residual Heat Removal System (RNS) - Reactor Coolant System (RCS)
Open TRM 3.7.3 Component Cooling Water System (CCS) - Reactor Coolant System (RCS)
Open TRM 3.7.4 Service Water System (SWS) - Reactor Coolant System (RCS) Open TRM 3.7.5 Main Control Room (MCR) Cooling - Long Term Shutdown TRM 3.7.6 I&C Room Cooling - Long Term Shutdown TRM 3.8.1 AC Power Supplies - Operating TRM 3.8.2 AC Power Supplies - Reactor Coolant System (RCS) Open TRM 3.8.3 AC Power Supplies - Long Term Shutdown TRM 3.8.4 Non Class 1E DC and UPS System (EDS) 16.3-2 Revision 4