Document: NUREG-0800
Document ID: f2ddec6c-0cce-4223-b813-233678ee07d0
Document Type: srp
Title: DIVERSE INSTRUMENTATION AND CONTROL SYSTEMS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1515/ML15159B171.pdf
Revision Date: 2023-06
Chapter: 7
Section ID: 7.8
CFR Part: 
CFR Title: 

Content:
n the RTS to support ATWS mitigation interfaces, the isolation devices are applied and qualified to the guidelines of SRP BTP 7-11. Based on the above items, the staff concludes that the design of the ATWS mitigation system is acceptable and satisfies the specific design requirements identified in 10 CFR 50.62 for [identify reactor type]. 4. Additional evaluation findings applicable to diverse I&C system manual controls and displays: Based on a review of diverse manual displays and controls, the staff concludes that these controls and displays are independent and diverse from the safety computer system, and sufficient for manual, system-level actuation of critical safety functions and monitoring of parameters that support the safety functions. Therefore, the staff concludes that the manual controls and displays fulfill the guidance of the Staff Requirements Memorandum on SECY 93-087, Item II.Q. 5. Additional evaluation findings applicable to DAS: Based on review of DAS functions and design, the staff concludes that the DAS is acceptable. The functional requirements, independence requirements, and diversity requirements for this system are consistent with the applicant’s diversity and D3 analysis, and fulfill the applicable guidance of the SRM on SECY-93-087, Item II.Q. 6. For DC and COL reviews, the findings will also summarize the staff’s evaluation of requirements and restrictions (e.g., interface requirements and site parameters) and COL action items relevant to this SRP section. 7. In addition, to the extent that the review is not discussed in other SER sections, the findings will summarize the staff’s evaluation of the ITAAC, including design acceptance criteria, as applicable. 7.8-11 Draft Revision 6 – August 2015 8. The conclusions noted above for the diverse I&C systems are applicable to all portions of the systems except for the following, for which acceptance is based on prior NRC review and approval as noted [list applicable system or topics and