Document: NUREG-0800
Document ID: c372af3e-1f44-4817-b7ae-01b1c087f547
Document Type: srp
Title: STEAM GENERATOR BLOWDOWN SYSTEM (PWR)
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052350093.pdf
Revision Date: 2023-06
Chapter: 10
Section ID: 10.4.8
CFR Part: 
CFR Title: 

Content:
the proposed system includes processes which are heat-sensitive (e.g., demineralization or reverse osmosis), CMEB verifies that the design includes instrumentation and controls to protect the temper- ature-sensitive elements. CMEB 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. b. CMEB reviews 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: (1) whether unusual design conditions exist which could lead to safety problems, and (2) that the system is capable of performing its intended functions. c. CMEB reviews the secondary coolant chemistry program for steam genera- tor blowdown samples in SRP Section 5.4.2.1, BTP MTEB 5-3 (Monitoring of Secondary Side Water Chemistry in PWR Steam Generators). d. CMEB coordinates its review with MEB to verify that the assigned classi- fications at the boundary interfaces between systems and/or system components are in accordace with the importance of the safety function to be performed and the guidelines of Regulatory Guides 1.26, 1.29, and 1.143. 2. SEB determines the seismic design and MEB determines the quality group and seismic design classification for the SGBS components as indicated above in subsection I, Areas of Review. 3. ETSB determines the capability to treat liquid and gaseous wastes asso- ciated with the SGBS as part of its review under SRP Sections 11.2 and 11.3. 4. ASB reviews the effect of SGBS high- and moderate-energy piping failures under SRP Section 3.6.1 to assure that other safety-related systems are not rendered inoperable. 10.4.8-3 Rev. 2 - July 1981 IV. EVALUATION FINDINGS CMEB verifies that sufficent information has been provided and that the review is adequate to support conclusions of the