Document: NUREG-0800
Document ID: be0ff036-ddfa-4ffb-8bb7-15e0fd9a1142
Document Type: srp
Title: 7.2 7.3 7.4 7.5 7.6 7.7
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052350467.pdf
Revision Date: 2023-06
Chapter: 7
Section ID: 7.1
CFR Part: 
CFR Title: 

Content:
Applicability: The protection systems: RTS and ESFAS. Review Methods: See RG 1.75 and IEEE Std 384 below. The evaluation of conformance to GDC 22 is addressed in the review of Sections 7.2 and 7.3 of the SAR. i. Criterion 23 - Protection System Failure Modes. "The protection system.shall be designed to fail into a safe state or into a state demonstrated to be acceptable on some other defined basis if conditions such as disconnection of 7.1-17 Rev. 0 - July 1981 the system, loss of energy, (e.g., electric power, instrument air), or postulated adverse environments (e.g., extreme heat or cold, fire pressure, steam, water, and radiation) are experienced." Applicability: The protection systems: RTS and ESFAS. Review Methods: RG 1.70, "Standard Format and Content of Safety Analysis Reports for Nuclear Power Plants," states that an analysis should be performed to demonstrate confor- mance to the requirements of the GDC. Conformance to the requirements of GDC 23 is addressed in the review of Sections 7.2 and 7.3 of the SAR. j. Criterion 24 - Separation of Protection and Control Systems. uThe protection system shall be separated from control systems to the extent that failure of any single control system com- ponent, or channel, or failure or removal from service of -any single protection system component or channel which is common to the control and protection systems leaves intact a system satisfying all reliability, redundancy, and independence requirements of the protection system. Interconnection of the protection and control systems shall be-limited so as to assure that safety is not significantly impaired." Applicability: The protection systems: RTS and ESFAS. Review Methods: Requirements related to control and protection system interaction are given in Section 4.7 of IEEE Std 279. Conformance to the requirements of GDC 24 is addressed in the review of Sections 7.2 and 7.3 of the SAR. k. Criterion 25 - Protection System Requirements for Reactivity Control