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:
equipment qualification program. 3.10-14 Revision 4 – December 2016 Technical Rationale The technical rationale for application of these acceptance criteria to the areas of review addressed by this SRP section is discussed in the following paragraphs: 1. Compliance with GDC 1 requires that (1) testing be done in accordance with quality standards commensurate with the importance of the safety functions to be performed, (2) where generally recognized codes and standards are used, they shall be identified and evaluated to determine their applicability, adequacy, and sufficiency, and (3) appropriate records be maintained. GDC 1 applies to this SRP section because the reviewer evaluates seismic and dynamic test and evaluation programs for electrical and mechanical equipment, and associated supports, designated as important to safety. IEEE Std. 344-2004, as endorsed by RG 1.100, Revision 3, provides guidance for establishing acceptable seismic and dynamic test (and/or evaluation) qualification and documentation criteria for electrical and mechanical equipment in nuclear power plants. The IEEE Std. C37.98-2013 is, in general, acceptable to the NRC staff for the seismic qualification testing of protective relays and auxiliaries. SRP Section 3.10, “Seismic and Dynamic Qualification of Mechanical and Electrical Equipment,” offers supplemental guidance regarding acceptable techniques for combining seismic loads with other loads and conditions, modeling of supports, documentation, and evaluation of results. Meeting the requirements of GDC 1 provides assurance that the seismic and dynamic qualification of electrical and mechanical equipment important to safety will comply with established criteria, thereby ensuring its capability to perform required safety functions during and after exposure to design-basis seismic and dynamic loads. 2. Compliance with GDC 2 requires that SSCs important to safety be designed to withstand the effects of design basis natural phenomena,