344-2004 - IEEE Recommended Practice for Seismic Qualification of Class 1E Equipment for Nuclear Power Generating Stations

Standard Details

Revision of IEEE Std 344-1987 Recommended practices are provided for establishing procedures that will yield data to demonstrate that the Class 1E equipment can meet its performance requirements during and/or following one safe shutdown earthquake event preceded by a number of operating basis earthquake events. This recommended practice may be used to establish tests, analyses, or experienced based evaluations that will yield data to demonstrate Class 1E equipment performance claims or to evaluate and verify performance of devices and assemblies as part of an overall qualification effort. Common methods currently in use for seismic qualification by test are presented. Two approaches to seismic analysis are described, one based on dynamic analysis and the other on static coefficient analysis. Two approaches to experienced-based seismic evaluation are described, one based on earthquake experience and the other based on test experience.

Standards Committee	PE/NPE - Nuclear Power Engineering
Status	Superseded
Superseded by	344-2013
Board Approval	2004-12-08
History	Published Date:2005-06-08 Reaffirmed:2009-09-11

Additional Resources Details

Interpretation	344-2004_interp.pdf
PAR	Approved PAR

Working Group Details

Working Group	WG_2.5 - Working Group on Seismic Qualification
Working Group Chair	James Parello
Standards Committee	PE/NPE - Nuclear Power Engineering
Society	IEEE Power and Energy Society
IEEE Program Manager	Malia Zaman
Active Projects	Active P60980-344 - IEEE/IEC International Draft Standard - Nuclear Facilities - Equipment Important to Safety - Seismic Qualification This International Standard describes methods for establishing seismic qualification procedures that will yield quantitative data to demonstrate that the equipment can meet its performance requirements. The seismic qualification requirements in this standard, when met, demonstrate and document the ability of equipment to perform safety function(s) during and/or after the specified seismic demand. This standard does not specify seismic demand or performance requirements. Other aspects, relating to quality assurance, selection of equipment, and design and modification of systems, are not part of this standard.
Existing Standards	Active 344-2013 - IEEE Standard for Seismic Qualification of Equipment for Nuclear Power Generating Stations Practices are provided for establishing procedures that will yield data to demonstrate that the equipment can meet its performance requirements during and/or following one safe shutdown earthquake event preceded by a number of operating basis earthquake events. This standard may be used to establish tests, analyses, or experienced-based evaluations that will yield data to demonstrate equipment performance claims or to evaluate and verify performance of devices and assemblies as part of an overall qualification effort. Common methods currently in use for seismic qualification by test are presented. Two approaches to seismic analysis are described, one based on dynamic analysis and the other on static coefficient analysis. Two approaches to experienced-based seismic evaluation are described, one based on earthquake experience and the other based on test experience.
	Superseded 344-1971 - IEEE Trial-Use Guide for Seismic Qualification of Class I Electric Equipment for Nuclear Power Generating Stations This guide provides direction for establishing procedures that will yield data which verify that the Class I electric equipment can meet its performance requirements during and following a design basis earthquake. This guide may be used by equipment manufactures to establish procedures that will yield data to substantiate performance claims or by equipment users to evaluate and verify performance of representative devices and assemblies as part of an overall qualification efforts.
	Superseded 344-1975 - IEEE Recommended Practices for Seismic Qualification of Class 1E Equipment for Nuclear Power Generating Stations These recommended practices provide direction for establishing procedures that will yield data which verify that the class 1E equipment can meet its performance requirements during and following on SSE (safe shutdown earthquake) preceded by a number of OBEs (operating basis earthquakes). This document maybe used by equipment manufactures to establish procedures that will yield data to substantiate performance claims or by equipment users to evaluate and verify performance of representative devices and assemblies as part of an overall qualification effort.