Document: NUREG-0800
Document ID: a4637484-a66d-4066-b2e7-77b0ea7d3187
Document Type: srp
Title: 2.
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070601.pdf
Revision Date: 2023-06
Chapter: 10
Section ID: 10.4.9.16
CFR Part: 
CFR Title: 

Content:
s of model tests and analyses that are relied on to verify that water hammer will not occur, or proposed tests of the installed system that are intended to verify design adequacy. Steam generators are reviewed in accordance with Branch Technical Position ASB 10-2. The feedwater control valve and controller design shall be verified to be stable and to be compatible with system(s), under imposed operating conditions (e.g., control functions 59 required, range of control and pressure drop characteristics, valve stroke, trim, etc.). Test data or operating experience data shall be used where available. In addition, the applicant has committed to review plant operating and maintenance procedures to assureensure that precautions for avoidance of steam/water hammer and water hammer 60 occurrences have been provided. Guidance for water hammer prevention and mitigation is found in NUREG-0927 (Reference 13).61 DRAFT Rev. 4 - April 1996 10.4.7-8 3. The outermost containment isolation valves and all downstream piping to the nuclear steam supply system are designed in accordance with seismic Category I requirements. The review for seismic design is performed by SGEBECGB and the review for seismic 62 and quality group classification is performed by MEBEMEB as indicated in subsection 63 I of this SRP section. 4. The CFS design is such that the plant can be safely shut down using the auxiliary feedwater system (PWR) or the reactor core isolation cooling system (BWR), if 64 required. 5. The CFS design, or other plant systems, provide the capability to detect and control leakage from the system, including leakage from spargers.65 6. The reviewer verifies that tThe essential portion of the system has been designed so that 66 system function will be maintained as required in the event of adverse environmental phenomena or loss of offsite power. The review for protection against natural phenomena is performed in the Chapter 3 SRP sections. The reviewer evaluates the system, using