Document: NRC Regulatory Guide
Document ID: cdc706d5-60ed-40a4-b55a-9771904107a7
Document Type: regulatory_guide
Title: Seismic Qualification of Electric and Mechanical Equipment for Nuclear Power Plants (Rev. 4)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1809/ML18093A675.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.100
CFR Part: 
CFR Title: 

Content:
of 1995 (44 U.S.C. 3501 et. seq.). These information collections were approved by the Office of Management and Budget (OMB), under control numbers 3150-0011 and 3150-0151. Send comments regarding this information collection to the Information Services Branch, U.S. Nuclear Regulatory Commission, Washington, DC 20555-0001, or by e-mail to Infocollects.Resource@nrc.gov, and to the Desk Officer, Office of Information and Regulatory Affairs, NEOB-10202 (3150-0011, 3150-0151), Office of Management and Budget, Washington, DC 20503. Public Protection Notification The NRC may not conduct or sponsor, and a person is not required to respond to, a collection of information unless the document requesting or requiring the collection displays a currently valid OMB control number. DG-1328, Page 4 B. DISCUSSION Reason for Revision This revision to RG 1.100 (Revision 4) addresses changes in standards endorsed by Revision 3 of RG 1.100 (Ref. 5) since its issuance in September 2009. The following are the revised standards endorsed by this RG: • Institute of Electrical and Electronics Engineers (IEEE) Standard (Std) 344-2013, “IEEE Standard for Seismic Qualification of Equipment for Nuclear Power Generating Stations” (Ref. 6). • IEEE Std C37.98-2013, “IEEE Standard for Seismic Qualification Testing of Protective Relays and Auxiliaries for Nuclear Facilities” (Ref. 7). • American Society of Mechanical Engineers (ASME) Qualification of Mechanical Equipment (QME)-1-2017, “Qualification of Active Mechanical Equipment Used in Nuclear Facilities” (Ref. 8). Background 1. Seismic Qualification of Electrical and Active Mechanical Equipment The major changes from IEEE Std 344-2004 (Ref. 9) to IEEE Std 344-2013 are updates based on experience gained since 2004 that address seismic qualification programs with higher frequency content based on the high-frequency ground motion. Based on IEEE Std 344-2004, previous qualification programs traditionally used a cutoff frequency of 33