Document: NUREG-0800
Document ID: 14c7085e-8b87-4b50-97fb-a095ea003ae8
Document Type: srp
Title: describes the general procedures to be followed in reviewing any I&C system. Procedures for
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0525/ML052500511.pdf
Revision Date: 2023-06
Chapter: 7
Section ID: 7.1
CFR Part: 
CFR Title: 

Content:
e technical items above, the Staff finds that the application contained appropriate detail about the diverse I&C systems design to satisfy the requirements of 10 CFR 52.47(a)(2). Additional evaluation findings applicable to ATWS mitigation systems: The ATWS mitigation system instrumentation includes [summarize the basic functions and elements of the I&C system design submitted for review]. Based on the review of these functions and the design bases submitted by the applicant, the Staff concluded that the ATWS mitigation design includes an appropriate set of functions. Based on review of the interfaces of the ATWS mitigation system and equipment with the RTS, the Staff concludes that the separation and independence of the RTS is not compromised by the ATWS mitigation system design. Where isolation devices are provided in the RTS to support ATWS mitigation interfaces, the isolation devices are applied and qualified to the guidelines of BTP HICB-11. Based upon 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]. Additional evaluation findings applicable to diverse I&C system manual controls and displays: Based on review of the design bases submitted by the applicant, the Staff concludes that the manual controls and displays are acceptable, 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 requirements of the Staff Requirements Memorandum on SECY 93-087, item II.Q. Rev. 4 — June 1997 SRP 7.8-9 Additional evaluation findings applicable to DAS: Based on review of the design bases submitted by the applicant, the Staff concludes that the DAS is acceptable. The functional requirements, independence