Document: NUREG-0800
Document ID: 1877a6e5-f5a2-4394-bd63-c323831e96d0
Document Type: srp
Title: INTRODUCTION - TRANSIENT AND ACCIDENT ANALYSES
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML2231/ML22319A149.pdf
Revision Date: 2023-07
Chapter: 15
Section ID: 15.0
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Content:
REVIEW RESPONSIBILITIES Primary - Organizations responsible for review of transient and accident analyses, and design-basis accident radiological consequence analyses for light- water power reactors Secondary - None The evaluation of the safety of a nuclear power plant requires analyses of the plant’s responses to postulated equipment failures or malfunctions. Such analyses help to determine the limiting conditions for operation, limiting safety system settings, and design specifications for components and systems to protect public health and safety. These analyses are a focal point of reviews of standard design and license applications under Title 10 of the Code of Federal Regulations (10 CFR) Parts 50 and 52. I. AREAS OF REVIEW The specific areas of review are as follows: 1. Categorization of Transients and Accidents. The reviewer ensures that the applicant’s selection and assembly of the plant transient and accident analyses represent a sufficiently broad spectrum of transients and accidents or initiating events. Initiating events are categorized as transients (i.e., anticipated operational occurrences (AOOs)) or accidents according to their expected frequency of occurrence and by type. Categorization by frequency of occurrence provides a basis for selection of the applicable analysis acceptance criteria for each initiating event. USNRC STANDARD REVIEW PLAN Draft Revision 4 – July 2023 This Standard Review Plan (SRP), NUREG-0800, has been prepared to establish criteria that the U.S. Nuclear Regulatory Commission (NRC) staff responsible for the review of applications to construct and operate nuclear power plants intends to use in evaluating whether an applicant/licensee meets the NRC's regulations. The SRP is not a substitute for the NRC's regulations, and compliance with it is not required. However, an applicant is required to identify differences between the design features, analytical techniques, and procedural measures proposed for its facility and the