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:
Primary - Structural Engineering Branch (SEB) Civil Engineering and Geosciences Branch (ECGB)1 Secondary - None I. AREAS OF REVIEW The following areas related to the seismic instrumentation program are reviewed: 1. Comparison with Regulatory Guide 1.12 A comparison of the proposed seismic instrumentation with the seismic instrumentation guidelines of Regulatory Guide 1.12 (Ref. 4) is made. In addition, the bases for 2 elements of the program that differ from Regulatory Guide 1.12 are reviewed. 2. Location and Description of Instrumentation The locations for the installation of seismic instrumentation such as triaxial peak accelerographs, triaxial time history accelerographs, and triaxial response spectrum recorders that will be installed in selected Category I structures and components are reviewed. The bases for selection of the instrumentation and the locations and a discussion of the extent to which the seismic instrumentation will be employed to verify the seismic analyses following an earthquake are reviewed. 3. Control Room Operator Notification The procedures that will be followed to inform the control room operator of the peak acceleration level and the input response spectra values shortly after occurrence of an earthquake are reviewed. Also reviewed are the bases for establishing predetermined DRAFT Rev. 2 - April 1996 3.7.4-2 values for activating the readout of the seismic instrumentation to the control room operator. 4. Comparison of Measured and Predicted Responses The criteria and procedures that will be used to compare measured responses of Category I structures and selected components in the event of an earthquake with the results of the seismic system and subsystem analyses are reviewed. 5. InserviceInstrument Surveillance3 The requirements for 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