Document: NUREG-0800
Document ID: 383561fc-b739-42a6-b54f-40bbc4b47d03
Document Type: srp
Title: SEISMIC INSTRUMENTATION
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070322.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.7.4
CFR Part: 
CFR Title: 

Content:
inservice inspectioninstrument surveillance testing and calibration 4 as pertaining to operability and reliability are reviewed. II. ACCEPTANCE CRITERIA The acceptance criteria for the areas of review described in subsection I of this SRP section are given below. Any other seismic instrumentation program which can be justified to be equivalent to the acceptance criteria may be used. SEB The ECGB accepts the seismic instrumentation 5 system if the relevant requirements of General Design Criterion 2 (Ref. 2), Appendix A to 10 CFR Part 100, Appendix A (Ref. 3), and 10 CFR Part 50, 50.55a (Ref. 1) , as they relate to the 6 7 capabilities and performance of the instruments to adequately measure the effects of earthquakes are met. Specific criteria necessary to meet the requirements of GDC 2, Appendix A to 10 CFR Part 100, Appendix A , and 10 CFR Part 50, 50.55a, are as follows: 8 The instrumentation used for the measurements should be capable of recording the effects produced by the most severe earthquakes that have been historically reported for the site and surrounding area with sufficient margin for the limited accuracy, quantity and period of time in which historical data has been accumulated. It is required in 10 CFR Part 100, Appendix A, that suitable instrumentation shall be provided so that the seismic response of nuclear plant features important to safety can be determined promptly to permit comparison of such response with that used as the design basis. The type, locations, operability, characteristics, installation, actuation, remote indication, and maintenance of seismic instrumentation should meet the guidance discussed below. Where an applicant proposes specific details different from these, acceptability should be based upon meeting applicable regulations, as stated above, consistent with current proven technologies and intended use of the recorded information.9 1. Comparison with Regulatory Guide 1.12 The seismic instrumentation program is considered to