Document: NUREG-0800
Document ID: 77e928bd-5fcf-425f-b8c0-85215a64682f
Document Type: srp
Title: INTERNALLY-GENERATED MISSILES (INSIDE CONTAINMENT)
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0703/ML070380167.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.5.1.2
CFR Part: 
CFR Title: 

Content:
e to be included in the staff's safety evaluation report. The reviewer also states the bases for those conclusions. The review of possible effects of internally-generated missiles (inside containment) included SSCs whose failure could prevent safe shutdown of the plant or result in significant uncontrolled release of radioactivity. After review of the applicant's design bases and criteria for the SSCs important to safety necessary to maintain a safe plant shutdown, the staff concludes that the SSCs to be protected from internally-generated missiles (inside containment) meet 10 CFR 50, Appendix A, GDC 4 requirements for protection of SSCs important to safety, since the applicant: 1. Has used methods for identifying potential sources of internal missiles and for demonstrating the adequacy of the protection provided which have been reviewed and found acceptable by the staff in this application or in previous applications; 2. Has shown that the functions of SSCs important to safety will be protected from internally-generated missiles (inside containment) by locating the systems or components in individual missile-proof structures, providing adequate physical separation for redundant systems or components of the system, or providing special protective shields or barriers; and 3. Has shown that controls ensure that all unsecured maintenance equipment inside containment, including equipment required for maintenance and that undergoing maintenance, will not generate a potential missile hazard. For DC and COL reviews, the findings will also summarize the staff’s evaluation of requirements and restrictions (e.g., interface requirements and site parameters) and COL action items relevant to this SRP section. In addition, to the extent that the review is not discussed in other SER sections, the findings will summarize the staff's evaluation of the ITAAC, including design acceptance criteria, as applicable. V. IMPLEMENTATION The staff will use this SRP section in performing