Document: NUREG-0800
Document ID: 16922d4c-3f36-4add-8a31-0ec35a44f030
Document Type: srp
Title: REACTOR COOLANT SYSTEM HIGH POINT VENTS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0707/ML070770005.pdf
Revision Date: 2023-06
Chapter: 5
Section ID: 5.4.12
CFR Part: 
CFR Title: 

Content:
344, as supplemented by Regulatory Guide 1.100, and Regulatory Guide 1.92. 11. The organization responsible for environmental qualification review (i.e., vent valves, block valves, position indication devices, and cable terminations) assures that the reactor coolant vent system is environmentally qualified in accordance with 10 CFR 50.49. 12. The organization responsible for review of reactor thermal-hydraulic systems evaluates the procedures necessary to operate the vent system. The operating procedures should include the following: A. When venting is needed and when it is not needed B. The method for determining the size of a noncondensible bubble C. A variety of initial conditions from which venting may take place D. Operator actions and necessary instrumentation 5.4.12-9 Revision 1 - March 2007 13. The organization responsible for mechanical engineering reviews the reactor coolant vent system to assure it is designed to withstand the dynamic loads associated with operation at RCS pressure with discharge to approximate atmospheric pressure. 14. The reviewer of the reactor coolant vent system determines that the applicable SRP Chapter 17 subjects are acceptably addressed. For review of a DC application, the reviewer should follow the above procedures to verify that the design, including requirements and restrictions (e.g., interface requirements and site parameters), set forth in the final safety analysis report (FSAR) meets the acceptance criteria. DCs have referred to the FSAR as the design control document (DCD). The reviewer should also consider the appropriateness of identified COL action items. The reviewer may identify additional COL action items; however, to ensure these COL action items are addressed during a COL application, they should be added to the DC FSAR. For review of a COL application, the scope of the review is dependent on whether the COL applicant references a DC, an early site permit (ESP) or other NRC approvals (e.g., manufacturing license,