Document: NUREG-0800
Document ID: 577b52cf-90e2-467e-8165-a1ce02957947
Document Type: srp
Title: REACTOR WATER CLEANUP SYSTEM (BWR)
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070438.pdf
Revision Date: 2023-06
Chapter: 5
Section ID: 5.4.8
CFR Part: 
CFR Title: 

Content:
hat releases of radioactive materials during normal operation and during anticipated operational occurrences will not result in onsite radiation doses exceeding the limits specified in 10 CFR Part 50, Appendix I, or offsite radiation doses exceeding those specified in 10 CFR Part 20.59 E. Compliance with GDC 61 requires that the fuel storage and handling, radioactive waste, and other systems that may contain radioactivity shall be designed to ensure adequate safety under normal and postulated accident conditions. GDC 61 applies because the RWCS is used to purify the reactor coolant. As such, gaseous, liquid, and solid radioactive materials will be accumulated within the system and will have the potential for discharge to the environment. 5.4.8-9 DRAFT Rev. 3 - April 1996 Meeting the requirements of GDC 61 provides assurance that releases of radioactive materials during normal operation and during anticipated operational occurrences will not result in radiation doses that exceed the limits specified in 10 CFR Part 20. In addition, meeting the requirements will provide assurance that the system will not fail under postulated accident conditions.60 III. REVIEW PROCEDURES The reviewer will select and emphasize material from this SRP section, as may be appropriate for a particular case. 1. CMEBEMCB reviews the system description and piping and instrumentation diagrams 61 (P&IDs) to determine the processing sequence, interconnections with other systems, and similarity to systems previously evaluated and establishes that the following are considered in the applicant's design: a. Provisions to automatically terminate flow to the RWCS following liquid poison injection into the reactor water. b. Provisions to automatically terminate flow to the cleanup demineralizers if the nonregenerative heat exchanger effluent temperature exceeds the resin operating temperature limits. c. Provisions for automatically maintaining flow through filter/ demineralizer units in the event system