Document: NUREG-0800
Document ID: 91ccd6ba-6094-458e-842b-ff5e6b11f635
Document Type: srp
Title: INTERNALLY GENERATED MISSILES (OUTSIDE CONTAINMENT)
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070370.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.5.1.1
CFR Part: 
CFR Title: 

Content:
ed in the staff's safety evaluation report: The review of possible effects of internally generated missiles (outside containment) included structures, systems, and components (SSC) whose failure could prevent safe 32 shutdown of the plant or result in significant uncontrolled release of radioactivity. Based on the review of the applicant's design bases and criteria for essential structures, systems, and componentsSSC important to safety necessary to maintain a safe plant shutdown, 33 the staff concludes that the structures, systems, and components to be protected from internally generated missiles (outside containment) meet the requirements of General Design Criterion 4. This conclusion is based on our determination that the applicant has met the requirement of GDC 4 with respect to protection of safety-related SSCSSC important to safety from internal missiles outside containment as the applicant: 34 1. Has met regulatory positions C.1 and C.3 of Regulatory Guide 1.115 "Protection Against Low Trajectory Turbine Missiles" as related to the identification and protection of SSC important to safety from the effects of turbine missiles; 2. Has used methods for identification of potential sources of internal missiles and for demonstrating the adequacy of the protection provided which have been reviewed by the staff in this or in previous applications and found acceptable; 3. Has shown that essential SSCthe functions of SSC important to safety will be 35 protected from internally generated missiles (outside containment) by locating the systems or components in individual missile-proof structures or providing special localized protective shields or barriers. For design certification reviews, the findings will also summarize, to the extent that the review is not discussed in other safety evaluation report sections, the staff’s evaluation of inspections, tests, analyses, and acceptance criteria (ITAAC), including design acceptance criteria (DAC), site interface