Document: NUREG-0800
Document ID: d51db4b1-0b68-4e27-8107-a41ccdbd671a
Document Type: srp
Title: ASME CODE CLASS 1, 2, AND 3 COMPONENTS, COMPONENT SUPPORTS,
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070337.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.9.3
CFR Part: 
CFR Title: 

Content:
he reactor coolant pressure boundary will be designed so as to have an extremely low probability of abnormal leakage, rapidly propagating failure, and gross rupture. This guidance is designed to be in accordance with GDC 14. Meeting these requirements provides assurance that components that are part of the reactor coolant pressure boundary are capable of performing their intended safety functions and prevent the spread of radioactive materials.71 (6) Compliance with GDC 15 requires that the reactor coolant system be designed with sufficient margin to ensure that the design conditions of the reactor coolant pressure boundary are not exceeded during any condition of normal operation, including anticipated operational occurrences. SRP Section 3.9.3 provides guidance for the staff's review of ASME Class 1 components and component supports, including core support structures. This guidance cites the requirements of the ASME B&PV Code to compute stresses and stress limits that are DRAFT Rev. 2 - April 1996 3.9.3-12 based on the loads and load combinations described in the SRP section. Meeting these requirements provides additional assurance that components that are part of the reactor coolant system are designed with sufficient margin to ensure that the design conditions of the reactor coolant pressure boundary are not exceeded during any condition of normal operation, including anticipated operational occurrences. This guidance is designed to be in accordance with GDC 15. Meeting these requirements provides assurance that the reactor coolant pressure boundary is capable of performing its intended safety function and prevent the spread of radioactive materials.72 III. REVIEW PROCEDURES The reviewer will select and emphasize material from the procedures described below, as may be appropriate for a particular case. For each area of review, the following review procedures apply: 1. Loading Combinations, System Operating Transient, and Stress Limits The objectives in reviewing