Document: NUREG-0800
Document ID: 9bcad4cd-a055-4dc1-9315-db9d703e6f6f
Document Type: srp
Title: ENVIRONMENTAL QUALIFICATION OF MECHANICAL AND ELECTRICAL
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1634/ML16343A167.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.11
CFR Part: 
CFR Title: 

Content:
ired to remain functional, including the radiation resulting from recirculating fluids for equipment located near the recirculating lines and including dose-rate effects. 3.11 -10 Draft Revision 4 – December 2017 15. The general requirement for environmental design and qualification of mechanical, electrical, and I&C equipment important to safety can be summarized as follows: (1) Appendix A to 10 CFR Part 50 provides an overall requirement that mechanical, electrical and I&C equipment important to safety shall be designed to have the capability of performing its design safety functions under all anticipated operational occurrences and normal, accident, and post accident environment, and for the length of time for which its function is required. (2) The NRC regulations in 10 CFR 50.49 provide specific requirements that the environmental qualification of certain electric equipment located in a harsh environment shall be demonstrated by appropriate testing, or a combination of testing and analyses, and maintaining all qualification records for the operational life of the plant. (3) Appendix B to 10 CFR Part 50 requires that a QA program shall be established and implemented to provide assurance that the applicable requirements for environmental design and qualification of all safety-related mechanical, electrical, and I&C equipment have been satisfactorily accomplished. The environmental design and qualification of mechanical, electrical, and I&C equipment is acceptable when it can be ascertained that these requirements have been met. 16. 10 CFR 50.55a(h), “Protection and “Safety Systems,” requires that protection systems of nuclear power reactors of all types must meet the requirements specified in 50.55a(h)(2) or 50.55a(h)(3). SRP Acceptance Criteria Specific SRP acceptance criteria acceptable to meet the relevant requirements of the NRC’s regulations identified above are set forth below. The SRP is not a substitute for the NRC’s regulations, and