Document: NUREG-0800
Document ID: 4ae4fdd9-3c00-4bbd-8ed8-caac69daf3a5
Document Type: srp
Title: describes the general procedures to be followed in reviewing any instrumentation and control
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0525/ML052500507.pdf
Revision Date: 2023-06
Chapter: 7
Section ID: 7.1
CFR Part: 
CFR Title: 

Content:
to these systems. The Staff concluded that the applicant/licensee adequately identified the guidelines applicable to these systems and has properly classified them. Based upon the review of the system design for conformance to the guidelines, the Staff finds that there is reasonable assurance that the systems fully conform to the guidelines applicable to these systems. Therefore the Staff finds that these requirements of GDC 1, 15, 16, 33-35, 38, 41, and 44, and 10 CFR 50.55a(a)(1) have been met. Based upon the review of interlock system functions, the Staff concludes that appropriate interlocks are provided to maintain an appropriate design margin to assure that acceptable fuel design limits are not exceeded during any condition of normal operation, including the effects of anticipated operational occurrences. Therefore, the Staff finds that the interlock systems satisfy the requirements of GDC 10, 15, 16, 28, 33-35, 38, 41, and 44. Based on the review of interlock system status information, initiation capabilities, and provisions to support safe shutdown, the Staff concludes that information is provided to monitor interlocks over the anticipated ranges for normal operation, for anticipated operational occurrences, and for accident conditions as appropriate to assure adequate safety. Appropriate controls are provided for interlock initiation and bypass. The interlocks appropriately support actions to operate the nuclear power unit safety under normal conditions and to maintain it in a safe condition under accident conditions. Therefore, the Staff finds that the interlock systems satisfy the requirements of GDC 13 and 19. The Staff conducted a review of these systems and finds that they comply with the reliability guidance of [IEEE Std. 279 or Reg. Guide 1.153]. Based upon this review, the Staff finds that the redundancy requirements of GDC 34, 35, 38, 41, and 44 have been met. The review included the identification of those systems and components for the interlock