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Title: Generic seismic ruggedness of power plant equipment

This report updates the results of a program with the overall objective of demonstrating the generic seismic adequacy of as much nuclear power plant equipment as possible by means of collecting and evaluating existing seismic qualification test data. These data are then used to construct ruggedness'' spectra below which equipment in operating plants designed to earlier earthquake criteria would be generically adequate. This document is an EPRI Tier 1 Report. The report gives the methodology for the collection and evaluation of data which are used to construct a Generic Equipment Ruggedness Spectrum (GERs) for each equipment class considered. The GERS for each equipment class are included in an EPRI Tier 2 Report with the same title. Associated with each GERS are inclusion rules, cautions, and checklists for field screening of in-place equipment for GERS applicability. A GERS provides a measure of equipment seismic resistance based on available test data. As such, a GERS may also be used to judge the seismic adequacy of similar new or replacement equipment or to estimate the seismic margin of equipment re-evaluated with respect to earthquake levels greater than considered to date, resulting in fifteen finalized GERS. GERS for relays (included in the original versionmore » of this report) are now covered in a separate report (NP-7147). In addition to the presentation of GERS, the Tier 2 report addresses the applicability of GERS to equipment of older vintage, methods for estimating amplification factors for evaluating devices installed in cabinets and enclosures, and how seismic test data from related studies relate to the GERS approach. 28 refs., 5 figs., 4 tabs.« less
Authors:
 [1]
  1. (Anco Engineers, Inc., Culver City, CA (United States))
Publication Date:
OSTI Identifier:
5288388
Report Number(s):
EPRI-NP-5223-M-Rev.1
Resource Type:
Technical Report
Research Org:
Electric Power Research Inst., Palo Alto, CA (United States); Anco Engineers, Inc., Culver City, CA (United States)
Sponsoring Org:
EPRI; Electric Power Research Inst., Palo Alto, CA (United States)
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; 99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE; ELECTRICAL EQUIPMENT; SEISMIC EFFECTS; MECHANICAL STRUCTURES; NUCLEAR POWER PLANTS; REACTOR COMPONENTS; ANCHORS; DAMPING; DATA ACQUISITION; DATA BASE MANAGEMENT; EARTHQUAKES; REACTOR SAFETY; VULNERABILITY; EQUIPMENT; MANAGEMENT; NUCLEAR FACILITIES; POWER PLANTS; SAFETY; SEISMIC EVENTS; THERMAL POWER PLANTS 220900* -- Nuclear Reactor Technology-- Reactor Safety; 220200 -- Nuclear Reactor Technology-- Components & Accessories; 990300 -- Information Handling