Document: NUREG-0800
Document ID: 0ee452da-349b-48b2-821e-193627d14ce4
Document Type: srp
Title: (Reference 4). The review procedures are as follows:
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052350478.pdf
Revision Date: 2023-06
Chapter: 7
Section ID: 7.1
CFR Part: 
CFR Title: 

Content:
all cases, the review must be sufficient to conclude conformance to the acceptance criteria, i.e., the requirements of the Commission's regulations. IV. EVALUATION FINDINGS The reviewer confirms that sufficient information has been provided and the review supports conclusions of the following type, to be included in the Staff's safety evaluation report: The control systems used for normal operation, that are not relied upon to perform safety functions but which control plant processes having a significant impact on plant safety, have been reviewed. These control systems include the reactivity control systems and 7.7-3 Rev. 3 - February 1984 the control systems for the primary and secondary coolant (PWR) systems. Also, the environmental control system which protects safety related instruments and instrument sensing lines from the effects of freezing due to extreme cold weather has been reviewed. The staff concludes that the control systems are acceptable and meet the relevant requirements of General Design Criteria 13 and 19. This conclusion is based on the following: Based on our review of the plant transient response to normal load changes and anticipated operational occurrences such as reactor trip, turbine trip, upsets-in the feedwater and steam bypass steams, we conclude that the control systems are capable of maintaining system variables within prescribed operating limits. The applicant has also provided an environmental control system to protect safety related instruments and instruments sensing lines from freezing. This system meets the guidelines of RG 1.151, position 5. Therefore, we find that the control systems satisfy this aspect of GDC 13. Our review of control systems included features of these systems for both manual and automatic control of the process systems. We con- clude that the features for manual and automatic control facilitate the capability to maintain plant variables within prescribed operating limits. We find that the control systems