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:
gle failure to (2) use of backup procedures Involving less cost. For example, bor- ation without letdown may be acceptable and eliminate need for upgrading let- down path. Use of ECCS for injection of borated water may also be accept- able. Need surveillance of boron concentration (boronometer and/or sampling). Limited operator action inside or outside of contaitnent if justified. Comply with one of allowable arrangements given. Reconended Implementation for Class 2 Plants (see Note 1) Same as above. Compliance required. (Plants normally meet the requirement under existing SRP Section 5.4.7). '-acc II. RHR Isolation RHR System III. RHR Pressure Relief Collect and contain relief M discharge I- '.0 oo RHR System Determine piping, etc., needed to meet requirement to provide In design. Compliance will not be required, if it is shown that adequate alternate methods of disposing of discharge are available. TABLE 1. POSSIBLE SOLUTION FOR FULL COMPLIANCE WITH BTP RS8 5-1 AND RECOMENDED IMPLEMENTATION FOR CLASS 2 PLANTS Design Requirements of CTP RS8 5-1 V. Test Requirement Heet R.G. 1.68. For PWRs, test plus analysts for cooldown under natural circulation to confirm adequate mixing and cooldown within limits specified in EOP. VI. Operational Procedure Process and [System or Component] Possible Solution for Full Compliance Recoended Implementation for Class 2 Plants (see Note 1) Run tests confirming analysis to meet requirement. Compliance required. Meet R.G. 1.33. For PWRs. include specific procedures and Cn information for cooldown under * natural circulation. | VII. Auxiliary Feedwater Supply Develop procedures and information from tests and analysis. From tests and analysis obtain conservative estimate of auxiliary FW supply to meet requirement and provide seismic Category I supply. Compliance required. Compliance will not be required, if It is shown that an adequate alternate seismic Category I source is available. F.0 Seismic Category I supply for auxiliary F. for at