Document: NUREG-0800
Document ID: 62e8a2f9-b438-4ced-8623-3e61ee216490
Document Type: srp
Title: series.22
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070293.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.8
CFR Part: 
CFR Title: 

Content:
pated operational occurrences. 3.13-19 DRAFT Rev. 0 - April 1996 Meeting the requirements of GDC 15 provides assurance that fasteners used in components of the RCS will perform their intended function so that the RCS is capable of containing radioactive material with sufficient margin.39 8. The requirements of GDC 30 that are applicable to systems and components containing threaded fasteners are described in subsection I.B.8. Threaded fasteners in the RCS are to be designed, fabricated, and tested in accordance with Section NB of the ASME Code, which includes stringent requirements to ensure that fasteners used in the RCS are designed, fabricated, installed, and tested to the highest quality standards practical. Leak detection systems are provided for the RCS. Meeting the requirements of GDC 30 provides assurance that fasteners used in components of the RCS will perform their intended function so that the RCS is capable of remaining intact and preventing the spread of radioactive materials.40 9. The requirements of GDC 31 that are applicable to systems and components containing threaded fasteners are described in subsection I.B.9. Threaded fasteners in the RCPB are to be designed, fabricated, and tested in accordance with Section NB of the ASME Code, which includes stringent fracture prevention requirements to ensure nonbrittle behavior of materials. The requirements of Appendix G to 10 CFR Part 50 regarding fracture prevention also apply to certain fasteners used in the RCPB. Further, Regulatory Guide 1.65 offers guidance with respect to the fracture toughness of reactor vessel closure studs. Material properties, temperature, operating conditions, radiation effects, varying stresses, and flaws are to be considered. Meeting the requirements of GDC 31 provides assurance that fasteners used in components of the RCPB will perform their intended function so that the RCPB is capable of remaining intact and preventing the spread of radioactive materials.41 10. The