Document: NUREG-0800
Document ID: 0e8ea974-9b26-4bf5-9ca9-ca9814ad85b6
Document Type: srp
Title: STEAM GENERATOR BLOWDOWN SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070550004.pdf
Revision Date: 2023-06
Chapter: 10
Section ID: 10.4.8
CFR Part: 
CFR Title: 

Content:
e that maintains the integrity of the reactor coolant pressure boundary. 4. Meeting the requirements of GDC 14 provides a level of assurance that the probability of leakage from or rapidly propagating failure of the reactor coolant pressure boundary does not increase during the operating life of the plant. III. REVIEW PROCEDURES The reviewer will select material from the procedures described below, as may be appropriate for a particular case. These review procedures are based on the identified SRP acceptance criteria. For deviations from these acceptance criteria, the staff should review the applicant’s evaluation of how the proposed alternatives provide an acceptable method of complying with the relevant NRC requirements identified in Subsection II. 1. The reviewer considers the pressure, temperature, flow rate, secondary coolant chemistry, main condenser water inleakage, and primary-to-secondary leakage to determine whether the SGBS design has included the effects of normal operation and anticipated operational occurrences (e.g., main condenser inleakage or primary-to- secondary leakage). The reviewer determines that the design parameters are reasonable. If the proposed system includes processes which are heat-sensitive (e.g., demineralization or reverse osmosis), the reviewer verifies the design includes instrumentation and controls to protect the temperature-sensitive elements. The reviewer ensures that instrumentation and process controls are provided to control flashing, liquid levels, and process flow through the proper components for the radioactivity levels expected. Review of instrumentation and controls is performed consistent with the procedures in SRP Section 7.7. 2. The reviewer examines the proposed piping and instrumentation diagrams (P&IDs) and process flow diagrams, the method of operation, the processing to be provided, and the interfaces between the blowdown system and other plant systems to determine: (a) whether unusual design conditions