Document: NUREG-0800
Document ID: 11a2be5f-50e6-47c7-beee-25b5049ab4bb
Document Type: srp
Title: REACTOR TRIP SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052350474.pdf
Revision Date: 2023-06
Chapter: 7
Section ID: 7.2
CFR Part: 
CFR Title: 

Content:
In addition, the ICSB will coordinate with other branches that interface with the overall. review of the following aspects of RTS: 1. The adequacy of the monitored variables, i.e., the suitability of parameters, such as pressure, for initiating a reactor trip. 2. The acceptability of the proposed trip.setpoints, time delays, accuracy requirements, and actuated equipment response consistent with the safety analysis included in Chapter 15 of the SAR. The coordinated reviews include the following: The Power Systems Branch (PSB) evaluates the adequacy of physical separa- tion criteria for cabling and electrical power equipment and determines that control and motive power supplied to redundant systems Is-from appropriate redundant sources as part of its primary review responsibility for SRP Sections 8.2, 8.3.1 and 8.3.2. The Auxiliary Systems Branch (ASB) evaluates the adequacy of the essential auxiliary support (EAS) systems to assure these systems satisfy the applicable acceptance criteria as part of its primary review responsi- bility for SRP Chapter 9 and 10. This review confirms that the design of the EAS systems is compatible with the single failure requirements of the RTS to perform its acquired safety functions and that the EAS systems 'that are essential to RTS operation will adequately maintain the.required environmental condition in areas where RTS equipment is located. The Reactor Systems Branch (RSB) evaluates the adequacy of protective functions consistent with the accident analysis as part-of its primary review responsibility for SRP Chapter 15. The Core Performance Branch (CPB) reviews the reactivity control aspects of the RTS, including the placement of neutron sensors with regard to measurement of the flux spatial dependence, the flux magnitude, and calibration effects of all operating modes throughout core life as part of its primary review responsibility for SRP Section 4.3.- The Equipment Qualification Branch (EQB) reviews the seismic and environ-