Document: NUREG-0800
Document ID: 611e1a8a-5fb2-4d1d-8b0e-7561bc7e46ac
Document Type: srp
Title: SEISMIC AND DYNAMIC QUALIFICATION OF MECHANICAL AND ELECTRICAL EQUIPMENT
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340654.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.10
CFR Part: 
CFR Title: 

Content:
e performed for all supports of mechanical and electrical equipment to assure their structural capability. (2) The analytical results should include the required input motions to the mounted equipment as obtained and characterized in the manner stated in subsection II.1.a.(3) above, and the combined 3.10-6 Rev. 2 - July 1981 stresses of the support structures should be in accordance with the criteria specified in SRP Section 3.9.3. (3) Supports should be tested with equipment installed or with a dummy simulating the equivalent equipment inertial mass effects and dynamic coupling to the support. If the.equipment is installed in a nonoperational mode for the support test, the response in the test at the equipment mounting location should be monitored and characterized in the manner as stated in subsection II.1.aC3) above. In such a case, equipment should be tested separately for operability and the actual Input motion to the equipment in this test should be more conservative in amplitude and frequency content that the monitored response from the support test. (4) The criteria of subsections II.l.a(3), (4), (5), (6), (7), (8), and (13) above, are applicable when tests are conducted on the equipment supports. c. Verification That Seismic and Dynamic Qualification Is Performed in the Proper Sequences of the Overall Qualification Program As defined in Part B of Regulatory Guide 1.100, IEEE Std. 344-1975 is an ancilliary standard of IEEE Std 323-1974 (endorsed with exceptions by Regulatory Guide 1.89. In accordance with this standard, for plants whose construction permit SER is dated July 1, 1974, or later, the seismic and dynamic testing portion of the overall qualification should be performed in its proper sequence as indicated in Section 6 of IEEE Std. 323-1974. 2. For plants for which the CP application was docketed before October 27, 1972, applicants should describe the extent to which the seismic and dynamic qualification of mechanical and electrical equipment and