Document: NUREG-0800
Document ID: 164d26ee-2125-481e-9fae-fb7b05365716
Document Type: srp
Title: RESIDUAL HEAT REMOVAL (RHR) SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340635.pdf
Revision Date: 2023-06
Chapter: 5
Section ID: 5.4.7
CFR Part: 
CFR Title: 

Content:
nt is to be assumed. 7. The cooldown function is to be reviewed to determine if it can be per- formed from the control room assuming a single failure of an active component, with only either onsite or offsite electric power available. Any operation required outside of the control room is to be justified by the applicant. Like Item 5, the initial cooldown for PWRs is to be reviewed by ASB. 8. By reviewing the system description and the P&IDs, the reviewer confirms the RHR system satisfies the pressure relief requirements of Branch Technical Position RSB 5-1 (Ref. 5). 9. By reviewing the piping arrangement and system description of the RHR system, the reviewer confirms that the RHR system meets the requirements of GDC 5 (Ref. 2) concerning shared systems. 5.4.7-7 Rev. 3 - April 1984 10. The RSB reviewer contacts the ASB reviewer in conjunction with his review of the RHR system heat sink and refueling system interaction to inter- change information and assure that the reviews are consistent with regard to the interfacing parameters. For example, the ASB review determines the maximum service or component cooling water temperature. The RSB reviewer then reviews the RHR system description to determine that this maximum temperature has been allowed for in the RHR system design. 11. The RSB reviewer contacts his counterpart in the ICSB to obtain any needed information from their review. Specifically, ICSB confirms that automatic actuation and remote-manual valve controls are capable of performing the functions required, and that sensor and monitoring provisions are adequate. The instrumentation and controls of the RHR system are to have sufficient redundancy to satisfy the single failure criterion. 12. The RSB reviewer contacts his counterpart in CSB so that the information needed concerning their reviews will be interchanged. 13. The RSB reviewer contacts his counterpart in PSRB to discuss any special test requirements and to confirm that the proposed preoperational test