Document: NUREG-0800
Document ID: d804e0bf-cdaf-4241-8a9e-1eaa21d9ca1a
Document Type: srp
Title: ENGINEERED SAFETY FEATURES SYSTEMS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052350475.pdf
Revision Date: 2023-06
Chapter: 7
Section ID: 7.3
CFR Part: 
CFR Title: 

Content:
phasis are the introduction of new design features or the utilization in the design of design features previously reviewed and found acceptable. However, in all cases, the review must be sufficient to conclude conformance to the acceptance criteria, i.e., the requirements of the Commission's regulations. IV. EVALUATION FINDINGS The reviewer verifies that sufficient information has been provided and that his review supports conclusions of the following type, to be included in the staff's safety evaluation report: 7.3-6 Rev. 2 - July 1981 The review of the instrumentation and control aspects of the engineered safety feature (ESF) systems included the engineered safety features actuation systems (ESFAS) and the ESF control systems. The ESFAS detects a plant condition requiring the operation of an ESF system and/or essential auxiliary supporting (EAS) system and initiates operation of these systems. The ESF control systems regulates the operation of the ESF systems following automatic initiation by the protection system or manual initiation by the plant operator. The staff concludes that the ESFAS and the ESF control systems are acceptable and meet the relevant requirements of General Design Criteria 2, 4,. 20 thru 24, 34, 35, 38, and 41 and 10 CFR Part 50, §50.55a(h). This conclusion is based on the following: We have conducted an audit review of these systems for conformance to guidelines of the regulatory guides and industry codes and standards applicable to these systems. In Section 7.1 of this SER we concluded that the applicant had adequately identified the guidelines applicable to these systems. Based upon our audit review of the system design for conformance to the guidelines, we find that there is reasonable assurance that systems conform fully to the guidelines applicable to these systems. Our review has included the identification of those systems and components for the ESFAS and ESF control systems which are designed to survive the effects of earthquakes,