Document: NUREG-0800
Document ID: 71cb532b-b4ee-4e32-b83f-f1f4412193fb
Document Type: srp
Title: SEISMIC INSTRUMENTATION
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1230/ML12304A031.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.7.4
CFR Part: 
CFR Title: 

Content:
REVIEW RESPONSIBILITIES Primary - Organization responsible for reviews of seismic issues Secondary - Organization responsible for reviews of radiation protection I. AREAS OF REVIEW Standard Review Plan (SRP) 3.7.4 discusses the seismic instrumentation for the plant during operation. The staff reviews information presented by the applicant for a constructions permit (CP), operating license (OL), design certification (DC), or combined license (COL) concerning the seismic instrumentation to determine that the seismic instrumentation system provided for the plant is acceptable and meets the requirements of Title 10 of the Code of Federal Regulations (10 CFR) Part 20 and Appendix S to 10 CFR Part 50. 3.7.4-2 Draft Revision 3 - August 2013 The specific areas of review are as follows: 1. Comparison with guidance provided in Regulatory Guide 1.12. A comparison is made of the proposed seismic instrumentation with the seismic instrumentation guidelines of Regulatory Guide (RG) 1.12. In addition, the bases for elements of the program that differ from RG 1.12 are reviewed. The locations for the installation of seismic instrumentation that will be installed in selected Category I structures and components are reviewed. Also reviewed are the discussions of the bases for selection of the instrumentation and its locations and the extent to which the seismic instrumentation will be maintained to enable a rapid determination of the severity of the vibratory ground motion at the site. 2. Comparison with RG 1.166. A comparison is made of the proposed procedures (1) for a timely evaluation after an earthquake of the recorded seismic instrumentation data and (2) for determining whether plant shutdown is required with the post-earthquake guidelines of RG 1.166. Also reviewed are the criteria for evaluation of the ground motion records and for determining the exceedance of the Operating Basis Earthquake (OBE) ground motion. 3. Inspections, Tests, Analyses, and Acceptance Criteria (ITAAC).