Document: NUREG-0800
Document ID: b91646e8-0b07-4d85-a5e4-783b27cdcd88
Document Type: srp
Title: SEISMIC AND DYNAMIC QUALIFICATION OF MECHANICAL AND
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070286.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.10
CFR Part: 
CFR Title: 

Content:
e for establishing acceptable seismic and dynamic test (and/or evaluation) qualification and documentation criteria for electric and mechanical equipment in nuclear power plants. Supplemental guidance is offered in SRP Section 3.10 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.58 2. Compliance with GDC 2 requires that systems, structures, and components important to safety be designed to withstand the effects of expected 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, plus 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 GDC 2 provides assurance that the seismic and dynamic qualification of electrical and mechanical equipment important to safety will be performed in accordance with criteria and standards (or the equivalent thereto) cited in this SRP section, thereby ensuring that such equipment is capable of withstanding