Document: NUREG-0800
Document ID: 861c72fa-b163-4443-a01e-48d1504c12a6
Document Type: srp
Title: INTERLOCK SYSTEMS IMPORTANT TO SAFETY
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1515/ML15159B156.pdf
Revision Date: 2023-06
Chapter: 7
Section ID: 7.6
CFR Part: 
CFR Title: 

Content:
tions, tests, and analyses are performed and the acceptance criteria met, the facility has been constructed and will operate in conformity with the combined license, the provisions of the AEA, and the NRC's regulations. Additional requirements applicable to safety systems with which interlock systems may interact. These criteria are used as guidelines, when applicable, in establishing the functions important to safety performed by interlock systems: 1. GDC 10, “Reactor Design.” 2. GDC 15, “Reactor Coolant System Design.” 3. GDC 16, “Containment Design.” 4. GDC 28, “Reactivity Limits.” 5. GDC 33, “Reactor Coolant Makeup.” 6. GDC 34, “Residual Heat Removal.” 7. GDC 35, “Emergency Core Cooling.” 8. GDC 38, “Containment Heat Removal.” 9. GDC 41, “Containment Atmosphere Cleanup.” 10. GDC 44, “Cooling Water.” SRP Acceptance Criteria Specific SRP acceptance criteria acceptable to meet the relevant requirements of the NRC’s regulations identified above are contained in SRP Section 7.1, SRP Table 7-1, and SRP Appendix 7.1-A which list standards, RGs, and branch technical positions (BTPs). 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 SRP acceptance criteria and evaluate how the proposed alternatives to the SRP acceptance criteria provide acceptable methods of compliance with the NRC’s regulations. 1. SRP Appendix 7.1-B provides guidance for evaluating conformance to the requirements of IEEE Std 279-1971. 7.6-5 Draft Revision 6 – August 2015 2. SRP Appendix 7.1-C provides guidance for evaluating conformance to IEEE Std 603-1991. 3. SRP Appendix 7.1-D provides guidance for evaluating conformance to the acceptance criteria contained in RG 1.152, “Criteria for Use of Computers in Safety Systems of Nuclear Power