Document: NUREG-0800
Document ID: fbcd53f5-fb4a-436f-9443-ef89f47e42cc
Document Type: srp
Title: SEISMIC AND DYNAMIC QUALIFICATION OF MECHANICAL AND ELECTRICAL
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1422/ML14227A631.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.10
CFR Part: 
CFR Title: 

Content:
equacy, 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. SRP Section 3.10 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 natural phenomena, combined with appropriate effects of normal and accident conditions, without loss of capability to perform their safety functions. GDC 2 applies to this SRP section because the reviewer evaluates testing and analysis of electrical and mechanical equipment, and associated supports, for the capability to resist seismic and dynamic loads. Pertinent staff positions include extensive and specific provisions for tests and analyses to consider all appropriate seismic and dynamic loads in combination with normal and accident loads. SRP Section 3.10 cites guidance for testing and analysis that is acceptable to the staff for ensuring that mechanical and electrical equipment will withstand all appropriate combinations of seismic and dynamic effects caused by natural phenomena. Meeting the requirements of