Document: NUREG-0800
Document ID: e8ae4ac1-29ed-46b1-b4c2-19c7f632e815
Document Type: srp
Title: DYNAMIC TESTING AND ANALYSIS OF SYSTEMS, COMPONENTS, AND
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070336.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.9.2
CFR Part: 
CFR Title: 

Content:
bine stop valve. c. A list of selected locations in the piping system at which visual inspections and measurements (as needed) will be performed during the tests. For each of these selected locations, the deflection (peak-to-peak) or other appropriate criteria, to be used to show that the stress and fatigue limits are within the design levels, should be provided. d. A list of snubbers on systems which experience sufficient thermal movement to measure snubber travel from cold to hot position. e. A description of the thermal motion monitoring program, i.e., verification of snubber movement, adequate clearances and gaps, including acceptance criteria and how motion will be measured. f. If vibration is noted beyond the acceptance levels set by the criteria of c., above, corrective restraints should be designed, incorporated in the piping system analysis, and installed. If, during the test, piping system restraints are determined to be inadequate or are damaged, corrective restraints should be installed and another test should be performed to determine that the vibrations have been reduced to an acceptable level. If no snubber piston travel is measured at those stations indicated in d., above, a description should be provided of the corrective action to be taken to assureensure that the snubber is operable. 2. To meet the relevant requirements of GDC 2, the acceptance criteria for the areas of review described in subsection I.2 of this SRP section are given below. Other approaches which can be justified to be equivalent to or more conservative than the stated acceptance criteria may be used to confirm the ability of all seismic Category I systems, components, equipment, and their supports to function as needed during and after an earthquake. a. Seismic Analysis Methods The seismic analysis of all Category I systems, components, equipment, and their supports (including supports for conduit and cable trays and ventilation ducts) DRAFT Rev. 3 - April 1996 3.9.2-8 should