Document: NUREG-0800
Document ID: 3571c6d8-6b1b-4c29-884c-33ab5be58d7f
Document Type: srp
Title: SEISMIC INSTRUMENTATION
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0704/ML070460349.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.7.4
CFR Part: 
CFR Title: 

Content:
radiation exposures ALARA for the location as required by 10 CFR Part 20. 3.7.4-5 Revision 2 - March 2007 III. REVIEW PROCEDURES The reviewer will select material from the procedures described below, as may be appropriate for a particular case. 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 Regulatory Guide 1.12. Any differences between the proposed and the regulatory guide seismic instrumentation, which have not been adequately justified, are identified and the applicant is informed of the need for additional technical justification. The locations and descriptions of the seismic instrumentation are reviewed to determine that these are in accordance with the acceptance criteria of Subsection II of this SRP section. If the instrumentation provided is judged to be insufficient, the need for additional instrumentation is transmitted to the applicant. The program is checked to verify that the triggering of the free-field or any foundation- level accelerograph is annunciated in the control room. If there is no provision for both audio and visual signals in the applicant's seismic instrumentation plan, the applicant is so informed with a request for compliance. The program is checked to ensure that the provisions for in-service testing, remote alarm to indicate actuation, recording capabilities, sufficient dynamic range and sampling rate with a low and adjustable actuating level or trigger are in accordance with RG 1.166. 2. Comparison with RG 1.166. The seismic instrumentation program is checked to ensure that the pre-earthquake planning and post-earthquake