Document: NUREG-0800
Document ID: 3d8f7691-e488-4083-af2f-eef689c0ec98
Document Type: srp
Title: ASME CODE CLASS 1, 2, AND 3 COMPONENTS AND COMPONENT SUPPORTS,
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0704/ML070430397.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.9.3
CFR Part: 
CFR Title: 

Content:
AND CORE SUPPORT STRUCTURES REVIEW RESPONSIBILITIES Primary - Organization responsible for mechanical engineering reviews Secondary - None I. AREAS OF REVIEW This standard review plan (SRP) section addresses the information presented in the applicant's safety analysis report (SAR) concerning the structural integrity of pressure-retaining components, their supports, and core support structures which are designed in accordance with the rules of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code, (hereafter referred to as “Code”) Section III, Division 1 and 10 CFR 50, Appendix A, General Design Criteria (GDC) 1, 2, 4, 14, and 15. The specific areas of review are as follows: 1. Loading Combinations, System Operating Transients, and Stress Limits. The design and service loading combinations (e.g., design and service loads, including system operating transients, in combination with loads resulting from postulated seismic and other events) specified for Code constructed items designated as Code Class 1, 2, 3 (including Class 1, 2, and 3 component support structures) and core support structures 3.9.3-2 Revision 2 - March 2007 are reviewed to determine that appropriate design and service limits have been designated for all loading combinations. The reviewer ascertains that the design and service stress limits and deformation criteria comply with the applicable limits specified in the Code and Appendix A to this SRP section. Service stress limits which allow inelastic deformation of Code Class 1, 2, and 3 components, component supports, and core support structures are evaluated as are the justifications for the proposed design procedures. Piping which is “field run” should be included. Internal parts of components, such as valve discs and seats and pump shafting, subjected to dynamic loading during operation of the component should also be included. 2. Design and Installation of Pressure Relief Devices. The design and installation