Document: NUREG-0800
Document ID: 243e1ce7-857c-48e4-9eb7-6125311da9be
Document Type: srp
Title: RESIDUAL HEAT REMOVAL (RHR) SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070437.pdf
Revision Date: 2023-06
Chapter: 5
Section ID: 5.4.7
CFR Part: 
CFR Title: 

Content:
ment. TABLE 1. POSSIBLE SOLUTION FOR FULL COMPLIANCE WITH BTP RSB 5-1 AND RECOMMENDED IMPLEMENTATION FOR CLASS 2 PLANTS Design Requirements Process and [System or Component] Possible Solution for Full Compliance Recommended Implementation for of BTP RSB 5-1 Class 2 Plants (see Note 1) 5.4.7-29 DRAFT Rev. 4 - April 1996 VI. Operational Procedure Develop procedures and information Compliance required. Meet R.G. 1.33. For PWRs include specific procedures and information for cooldown under natural circulation. from tests and analysis. VII. Auxiliary Feedwater Supply Emergency Feedwater Supply From tests and analysis obtain Compliance will not be required if it is Seismic Category I supply for supply to meet requirement and seismic Category I source is available. auxiliary FW for at least four provide seismic Category I supply. hours at hot shutdown plus cooldown to RHR cut-in based on longest time for only onsite or only offsite power and assumed single failure. conservative estimate of auxiliary FW shown that an adequate alternate Note 1: The implementation for Class 2 plants does not result in a major impact while providing additional capability to go to cold shutdown. The major impact results from the requirement for safety-grade steam dump valves. DRAFT Rev. 4 - April 1996 5.4.7-30 [This Page Intentionally Left Blank] SRP Draft Section 5.4.7 Attachment A - Proposed Changes in Order of Occurrence 5.4.7-31 DRAFT Rev. 4 - April 1996 Item numbers in the following table correspond to superscript numbers in the redline/strikeout copy of the draft SRP section. Item Source Description 1. SRP-UDP Format Item, Update PRB Changed PRB name to reflect latest responsibility names. assignments for this SRP section. 2. Integrated Impact # 111 A discussion under the Areas of Review was added to address the review performed in SRP Section 6.2.2 covering the containment emergency sump interface with the RHR system. SRP Section 6.2.2 contains the reviews necessary to ensure that all of