Document: NUREG-0800
Document ID: 26aca061-b0de-4983-bbca-3fccb00afc2f
Document Type: srp
Title: PRESSURE-TEMPERATURE LIMITS AND PRESSURIZED THERMAL SHOCK1
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070431.pdf
Revision Date: 2023-06
Chapter: 5
Section ID: 5.3.2
CFR Part: 
CFR Title: 

Content:
eillance program for the reactor vessel beltline region. The reactor vessel beltline materials for Pressurized Water Reactors (PWRs) are evaluated for susceptibility to pressurized thermal shock (PTS) through review of 1) the reference temperature, RT , calculations and screening criterion, and, if the RT value PTS PTS is projected to exceed the PTS screening criterion before the expiration date of the license, 2) any associated safety analyses performed to support reactor operation.6 The pressure-temperature limits imposed on the reactor coolant pressure boundary during any condition of normal operation, including anticipated operational occurrences, and hydrostatic tests are reviewed in this section of the Standard Review Plan (SRP) to 7 assure adequate safety margins of structural integrity for the ferritic components of the reactor coolant pressure boundary. Review Interfaces: EMCB also reviews the material characteristics of the reactor coolant pressure boundary and reactor vessel, including fracture toughness properties, as part of its review responsibilities for SRP Sections 5.2.3 and 5.3.1. In addition, the EMCB will coordinate with the Reactor Systems Branch (SRXB) which reviews the over-pressure protection system for consistency with the Appendix G pressure-temperature limits as part of its review responsibility for SRP Section 5.2.2 and Branch Technical Position (BTP), BTP RSB 5-2. The SRXB also reviews the peak reactor vessel wall fluence for the 8 design life of the plant as part of its review responsibility for SRP Section 4.3.9 II. ACCEPTANCE CRITERIA10 The acceptability of the reactor coolant pressure boundary pressure-temperature limits is based on meeting the relevant requirements of the following Commission regulations: A. 10 CFR Part 50, Appendix A, General Design Criterion 1, "Quality Standards and Records," as it relates to quality standards for design, fabrication, erection and testing; B. 10 CFR Part 50, Appendix A, General Design Criterion