Document: NUREG-0800
Document ID: 0a15bfe3-b20f-42c5-a9ae-f05462e14c42
Document Type: srp
Title: REACTOR TRIP SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1602/ML16020A059.pdf
Revision Date: 2023-06
Chapter: 7
Section ID: 7.2
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Content:
o initiate reactor shutdown consistent with the accident analysis presented in Chapter 15 of the SAR and evaluated in the SER. Therefore, the staff finds that the RTS satisfies the requirements of GDC 20. The RTS conforms to the guidelines for periodic testing in RG 1.22, “Periodic Testing of Protection System Actuation Functions,” and RG 1.118, “Periodic Testing of Electric Power and Protection Systems.” The bypassed and inoperable status indication conforms to the guidelines of RG 1.47, “Bypassed and Inoperable Status Indication for Nuclear Power Plant Safety Systems.” The RTS conforms to the guidelines of the single-failure criterion in RG 1.53, “Application of the Single-Failure Criterion to Safety Systems,” which endorses IEEE Std 379, “IEEE Standard Application of the Single-Failure Criterion to Nuclear Power Generating Station Safety Systems.” Based on the review, the staff concludes that the RTS satisfies the requirement of (IEEE Std 279-1971 or IEEE Std 603-1991) with regard to the system reliability and testability. Therefore the staff finds that the RTS satisfies these requirements of GDC 21. The RTS conforms to the guidelines in RG 1.75, “Criteria for Independence of Electrical Safety Systems,” for the protection system independence. Based on the review, the staff concludes that the RTS satisfies the requirement of (IEEE Std 279-1971 or IEEE Std 603-1991) with regard to the systems independence. Therefore, the staff finds that the RTS satisfies the requirements of GDC 22. Based on the review of the failure modes and effects analysis for the RTS, the staff concludes that the system is designed to fail into a safe mode if conditions such as disconnection of the system, loss of energy, or postulated adverse environment are experienced. Therefore, the staff finds that the RTS satisfies the requirements of GDC 23. Based on the review of the interfaces between the RTS and plant operating control systems, the staff concludes that the