Document: NUREG-0800
Document ID: 7c10e1ce-ce1f-4c5c-8b11-53db665b85f4
Document Type: srp
Title: REACTOR COOLANT SYSTEM HIGH POINT VENTS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340642.pdf
Revision Date: 2023-06
Chapter: 5
Section ID: 5.4.12
CFR Part: 
CFR Title: 

Content:
position indication devices, cable terminations, and piping) to assure that it is seismically and environmentally qualified in accordance with IEEE 344-1975 as supplemented by Regulatory Guide 1.100, 1.92 and SEP 3.92, 3.43, and 3.10. 11. RSB evaluates the procedures necessary to operate the vent system. The operating procedures shall consider 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. IV. EVALUATION FINDINGS The reviewer verifies that sufficient information has been provided and that the review supports conclusions of the following type, to be included in the staff's Safety Evaluation Report: The staff concludes that the design of the reactor coolant system high point vents is acceptable and meets the relevant requirements of 10 CFR Part 50, §50.46 and §50.55a, General Design Criteria 1, 14, and 30. This conclusion is based on the following: 5.4.12-5 Rev. 0 - July 1981 The reactor coolant system high point vents includes components and piping to remotely relieve noncondensible gases from the primary coolant system and vent the gases to the containment atmosphere or to holdup tanks within containment. [The review has included the applicant's proposed design criteria and design bases, and these meet the requirements for the Construction Permit Stage.] {The review has included the applicant's analysis of the vent system design with the design criteria and design bases and has included operating procedures for the vents.] (Operating License Stage) In addition, the basis for acceptance in the staff review is conformance of the applicant's designs, design criteria, and design bases for the reactor coolant system vents and supporting systems to applicable regulatory guides, branch technical positions, and industry standards [identify each document and describe