Document: NUREG-0800
Document ID: ebb3bba3-71ad-4853-8cc5-cc5633d347fd
Document Type: srp
Title: -13
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1404/ML14043A231.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.9.3
CFR Part: 
CFR Title: 

Content:
Revision 3 – April 2014 Installations” and the additional acceptance criteria in Subsection II.2 in this SRP section. Allowable stress limits are compared with those in the Code for the appropriate class of construction. Deviations are identified and the applicant is requested to provide justification. Stress limits and loading combinations are in the subsections entitled “Loading Combinations, System Operating Transients, and Stress Limits” (Subsections II.1 and III.1) in this SRP section. B. The design of the installation is reviewed for structural adequacy to withstand the dynamic effects of relief valve operation. The applicant should include and discuss: reaction force, valve opening sequence, valve opening time, method of analysis, and magnitude of a dynamic load factor (if used). In reaching an acceptance determination, the reviewer compares the submission with the criteria in Subsection II.2 of this SRP section. Where deviations occur, they are identified and the justification is evaluated. Valve opening sequence effects should include the worst-case load combination and forcing functions should be justified with valve opening time data. The review will consider comparisons with prior acceptable designs tested in operating plants. 3. Component Supports. The objective in the review of component supports is to determine that adequate attention has been given the various aspects of design and analysis, so that there is reasonable assurance of structural integrity of supports and of operational readiness of active components that interact with component supports. The reviewer verifies that the applicant's SAR contains discussions and commitments to develop and utilize a snubber operational readiness program containing the elements specified in paragraphs (i) through (v) of Subsection II.3.B of this SRP section. The structural integrity of the three types of component supports described in Subsection I.3 of this SRP section are reviewed against the