Document: NUREG-0800
Document ID: 29fa664a-a42c-4ff0-8ae1-3798f7f23c23
Document Type: srp
Title: TURBINE MISSILES
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070373.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.5.1.3
CFR Part: 
CFR Title: 

Content:
s the following conclusion:41 1. The staff concludes that the turbine missile risk for the proposed plant design is acceptable and meets the requirements of General Design Criterion 4. This conclusion is based on the applicant having sufficiently demonstrated to the staff in accordance with Regulatory Guide 1.115 that the probability of turbine missile damage to safety-related 42 structures, systems, and components important to safety (i.e., those listed in Regulatory Guide 1.117) is acceptably low. 43 2. The staff concludes that the turbine missile risks for the proposed plant designs are too high and do not meet the requirements of General Design Criterion 4. Additional protection against turbine missiles is required in order to reduce the overall risk. The applicant should comply with Regulatory Guide 1.115 (turbine reorientation, vulnerable system relocation, missile barriers, overspeed protection, turbine disc integrity and inservice inspection, or other appropriate measures may be recommended).44 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 ITAAC evaluation, including design acceptance criteria (DAC), site interface requirements, and COL action items that are relevant to this SRP section.45 V. IMPLEMENTATION The following is intended to provide guidance to applicants and licensees regarding the NRC staff's plans for using this SRP section. This SRP section will be used by the staff when performing safety evaluations of license applications submitted by applicants pursuant to 10 CFR 50 or 10 CFR 52. Except in those 46 cases in which the applicant proposes an acceptable alternative method for complying with specified portions of the Commission's regulations, the method described herein will be used by the staff in its evaluation of conformance with Commission regulations. The provisions of this SRP section apply to reviews of applications