Document: NUREG-0800
Document ID: 39eaebb5-884c-4731-895a-8df4686b7293
Document Type: srp
Title: REGULATORY TREATMENT OF NONSAFETY SYSTEMS FOR PASSIVE
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1403/ML14035A149.pdf
Revision Date: 2023-06
Chapter: 19
Section ID: 19.3
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Content:
igned to withstand the effects of high winds produced in hurricanes and tornadoes, including the effects of sustained winds, gusts, and associated wind-borne missiles and that applicants have used the guidance in RG 1.76 and 1.221 appropriately to choose the design basis wind speeds for RTNSS SSCs, (2) RTNSS “B” SSCs have been analyzed and designed to withstand adverse effects associated with internal hazards, i.e., those created from conditions inside the plant. 5. The staff will verify that the applicant has met the following acceptance criterion: RTNSS “B” SSCs and supporting equipment will be protected from floods, and meet the criteria in SRP 2.4 and SRP 3.4.1. Area of Review – Regulatory Treatment of SSCs in the RTNSS Program The staff will verify that the applicant has met the following acceptance criteria: 1. The applicant has established the reliability and availability mission of each RTNSS SSC using the applicable probabilistic, deterministic, and other methods used to identify and quantify risk, including information obtained from sources such as the PRA, severe accident evaluations, industry operating experience, and expert panels. 2. The applicant has established treatment requirements for each SSC commensurate with its reliability and availability missions through operational programs such as pre-service and in-service testing and surveillance, the maintenance program established through 10 CFR 50.65, “Requirements for Monitoring the Effectiveness of Maintenance at Nuclear Power Plants,” quality assurance activities for the nonsafety-related SSCs in accordance with Part V of SRP Section 17.5 and ACs, including LCOs and surveillance requirements, in the form of either TSs or administrative controls. 3. Controls for RTNSS “B” SSCs will be provided in the ACM. III. REVIEW PROCEDURES The general procedures for the review of RTNSS SSCs for all passive light water reactors are given in the following paragraphs. In applying these procedures