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:
rements of the acceptance criteria and guidelines. The branch technical positions are used when a particular design problem and an acceptable solution have been identified. Acceptance criteria for the review of ESFAS and ESF control systems are: 1. General Design Criterion 2, "Design Basis for Protection Against Natural Phenomena." 2. General Design Criterion 4, "Environmental and Missile Design Basis." The following acceptance criteria are applicable to the review of the ESFAS: 1. 10 CFR Part 50, §50.55a(h), "Protection Systems": IEEE Std 279, "Criteria for Protection Systems for Nuclear Power Generating Stations." 2. General Design Criterion 20, "Protection System Function." 3. General Design Criterion 21, "Protection System Reliability and Testability. 4. General Design Criterion 22, "Protection System Independence." 5. General Design Criterion 23, "Protection System Failure Modes." 6. General Design Criterion 24, "Separation of Protection and Control Systems." In addition, the ESF control systems are reviewed for conformance to the following acceptance criteria*, applicable to ESF systems with regards to conformance to the single failure criterion on a system basis, and to -operability from onsite and offsite electrical power: 1. General Design Criterion 34, "Residual Heat Removal." 2. General Design Criterion 35, "Emergency Core Cooling." 3. General Design Criterion 38, "Containment Heat Removal." 4. General Design Criterion 41, "Containment Atmosphere Cleanup." Regulatory Guides, Branch Technical Positions, and industry standards that provide information, recommendations and guidance, and in general describe a basis acceptable to the staff that may be used to implement the requirements gFor ESFAS these requirements are included in the General Design Criteria * which specifically address protection systems. 7.3-4 Rev. 2 - July 1981 .of the Commission regulations identified above are given in SRP Section 7.1, Table 7-1 (Ref. 1) and Appendix 7-A (Ref. 2). In