Document: NUREG-0800
Document ID: 2781386f-8b2c-401b-814a-d98c9381a202
Document Type: srp
Title: STRUCTURES, SYSTEMS, AND COMPONENTS TO BE PROTECTED FROM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070307.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.5.2
CFR Part: 
CFR Title: 

Content:
to be protected is based upon not allowing offsite exposures to exceed an appropriate fraction of the offsite dose guidelines of 10 CFR Part 100. Basing the limits upon an appropriate fraction ensures protection for those events that are not as severe as the design-basis event but have a higher probability of occurrence. Identifying SSC important to safety so that they may be protected from externally generated missiles ensures: the integrity of the reactor coolant pressure boundary, the capability to shutdown the reactor and maintain it in a shutdown condition and the capability to prevent significant uncontrolled release of radioactivity. DRAFT Rev. 3 - April 1996 3.5.2-4 III. REVIEW PROCEDURES The procedures set forth below are used during the construction permit (CP) review to determine that the applicant's list of SSC that require protection from externally generated missiles is complete and meets the acceptance criteria given in subsection II of this SRP section. For operating license (OL) applications, the procedures are used to verify that the CP-stage list continues to be applicable and complete, or has been supplemented as appropriate. The reviewer will select and emphasize material from the paragraphs below, as may be appropriate for a particular case. The first step in the review is to verify the identification of the safety- related SSC, and whether the SSC are considered safety related in their entirety or have only portions that are safety related. In order to determine the safety category of the SSC, the ASBSPLB evaluates the SSC 17 of the facility with respect to their necessity for achieving and maintaining safe reactor shutdown, and for performing accident prevention or mitigation functions. The information provided in the SAR pertaining to SSC design bases, design criteria, descriptions and safety evaluations, together with the system and component characteristic tables and safety classification tables are reviewed to identify safety functions