Document: NUREG-0800
Document ID: 5dc31795-dfdc-4ed0-a4c2-e6a13e4997ab
Document Type: srp
Title: SEISMIC AND DYNAMIC QUALIFICATION OF MECHANICAL AND ELECTRICAL
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1608/ML16088A101.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.10
CFR Part: 
CFR Title: 

Content:
XI, “Test Control”, and 10 CFR Part 50, Appendix S as they relate to the qualification of equipment. 1. The qualification of electrical equipment and its supports should meet the requirements and recommendations of American National Standards Institute/Institute of Electrical and Electronics Engineers (IEEE) Std. 344-2004, “IEEE Recommended Practice for Seismic Qualification of Class 1E Equipment for Nuclear Power Generating Stations,” as endorsed by the NRC in RG 1.100, “Seismic Qualification of Electric and Mechanical Equipment for Nuclear Power Plants.” Revision 31. (This revision of RG 1.100 provides guidance with exceptions for use of Appendix QR-A of ASME QME-1-2007 for seismic qualification of active mechanical equipment and other qualifications of mechanical components, and IEEE Std. 344-2004 for seismic qualification of Class 1E equipment.) The IEEE Std. C37.98-2013 is, in general, acceptable to the NRC staff for the seismic qualification testing of protective relays and auxiliaries, such as test and control switches, terminal blocks and indicating lamps. IEEE C37.98-2013 establishes test methods and conditions for determining the seismic capability and to demonstrate seismic qualification of protective relays and auxiliaries. These documents are generally applicable to all types of equipment and should be used to the extent practicable for the qualification of mechanical equipment. Specifically, conformance to the following criteria should be demonstrated. A. Qualification for Equipment Functionality i. Tests, analyses, or a combination of tests and analysis are required to confirm the functionality of all mechanical and electrical equipment during and after an earthquake of magnitude up to and including the OBE and SSE and for all static and dynamic loads from normal, anticipated operational occurrence, and accident conditions. Before SSE qualification, the applicant should demonstrate that the equipment can withstand the equivalent effect of