Document: NUREG-0800
Document ID: 80f85c58-62f4-4c36-99a0-9fc302a92188
Document Type: srp
Title: STRUCTURES,
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340540.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.5.2
CFR Part: 
CFR Title: 

Content:
ally generated missiles, protection may be provided by missile barriers for individual components, by locating independent redundant systems in com- partments located in a missile protected structure, or by subgrade location at a sufficient depth. Physical separation alone is not normally an acceptable method of missile protection for redundant safety-related systems and compo- nents located in nonmissile protected independent structures. Specific- missile sources and the protection needed are considered in other SRP sections in the 3.5.1 series. The reviewer determines that nonsafety-related SSC are identified as requiring protection from externally generated missiles if as a result of their failure by a missile, the consequences could prevent the intended safety function of a safety-related SSC. IV. EVALUATION FINDINGS The reviewer verifies that sufficient information has been provided and his review supports conclusions of the following type, to be included in the staff's safety evaluation report: The review of the SSC to be protected from externally generated missiles included all safety-related structures, systems, and components provided to support the reactor facility. Based on the review of the applicant's proposed design criteria, design bases, and safety classifications for SSC necessary for safe reactor shutdown, the staff concludes that the SSC to be protected from externally generated missiles are in conformance with General Design Criteria 2 and 4. This conclusion is based on the following: The applicant has met the requirements of General Design Criteria 2 and 4 with respect to protection of SSC important to safety against the effects of externally generated missiles by: (1) Meeting Regulatory Position C.2 of Regulatory Guide 1.13, "Spent Fuel Storage Facility Design Basis," by preventing missiles gen- erated by tornado winds from causing significant loss of watertight integrity of the fuel storage pool, and from contacting fuel within the pool; (2)