Document: NUREG-0800
Document ID: 90555c0d-360d-4a21-9859-bfb3cf6f2aea
Document Type: srp
Title: SEISMIC INSTRUMENTATION
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1332/ML13324A570.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.7.4
CFR Part: 
CFR Title: 

Content:
lace within 4 hours of the earthquake. 3. Comparison with the requirements of 10 CFR 20.1101 (ALARA). Appropriate station layout and design features should be provided to reduce the potential doses to personnel who must operate, service, or inspect station instrumentation and controls. Technical Rationale The technical rationale for application of these acceptance criteria to the areas of review addressed by this SRP section is discussed in the following paragraphs: 10 CFR Part 50, Appendix S, requires that suitable instrumentation be provided to promptly evaluate the seismic response of nuclear power plant features important to safety after an earthquake. Appendix S also requires shutdown of the nuclear power plant if vibratory ground motion exceeding that of the OBE occurs. The seismic instrumentation program with installation of digital time-history accelerographs with sufficient dynamic range, pre-event memory and sampling rate, to accurately record the ground motion at designated locations will provide time history data on the seismic response of the free- field, containment structure, and other Seismic Category I structures located at elevations different from the containment elevation, as well as maintaining occupational radiation exposures ALARA for the location as required by 10 CFR Part 20. III. REVIEW PROCEDURES The primary reviewer will select material from the procedures described below, as may be appropriate for a particular case. 3.7.4-6 Revision 3 - July 2014 These review procedures are based on the identified SRP acceptance criteria. For deviations from these acceptance criteria, the staff should review the applicant’s evaluation of how the proposed alternatives provide an acceptable method of complying with the relevant NRC requirements identified in Subsection II. 1. Comparison with RG 1.12. The seismic instrumentation program is checked to ensure that the instrumentation is in accordance with the guidelines of RG 1.12. Any differences between