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:
t may be used to implement the requirements of the regulations identified above are as follows.:28 Acceptable load combinations and methods for combining dynamic responses for mechanical equipment are defined in SRP Section 3.9.3. The same criteria is acceptable for electrical equipment. Acceptable testing and analysis procedures for confirming the operability of equipment for the defined load condition are presented in paragraphs 1 and 2 below. These criteria, when satisfied, will fulfill the requirements of GDC 2 and GDC 4, as discussed above, and paragraphs XI of Appendix B to 10 CFR 50 and VI(a)(1) and (2) of Appendix A to 10 CFR Part 100 as they relate to the qualification of equipment. 1. For plants for which the CP application was docketed after October 27, 1972, theThe29 qualification of electrical equipment and their supports should meet the requirements and recommendations of IEEE Std. 344-1975ANSI/IEEE Std 344-1987 and the Regulatory 30 Position of Regulatory Guide 1.100, which endorses IEEE Std. 344-1975. as endorsed by Regulatory Guide 1.100. These documents are generally applicable to all types of 31 equipment and should be used to the extent practicable for the qualification of mechanical equipment as well. Specifically, conformance to the following criteria should be demonstrated. a. Qualification for Equipment Operability (1) Tests and analyses are required to confirm the operability 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, transientanticipated operational occurrence32 and accident conditions. Prior to SSE qualification, it should be demonstrated that the equipment can withstand the OBE excitation without loss of structural integrity. Analyses alone, without testing, are acceptable as a basis for qualification only if the necessary functional operability of the equipment is assuredensured by its structural integrity 33