Document: NUREG-0800
Document ID: a5f6fd7c-4062-40ac-b548-0ddba421091d
Document Type: srp
Title: ENVIRONMENTAL QUALIFICATION OF MECHANICAL AND ELECTRICAL
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0636/ML063600397.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.11
CFR Part: 
CFR Title: 

Content:
usly analyzed in the plant’s safety analysis report. 10 CFR 50.67 applies to this section since it provides licensees with an option as to the source term used in design basis radiological analyses. This applies to environmental qualification, for which the radiological environment associated with a design basis event is used as the basis for qualification. The accident conditions under which the equipment must operate, and for which the equipment is qualified, will be impacted by the accident source term used in the postulated design basis event. Meeting 10 CFR 50.67 provides assurance that a revision to the accident source term will include an analysis of the consequences of such a change, including impacts to the environmental qualification of equipment important to safety. 3. Compliance with GDC 1, "Quality Standards and Records," requires that components important to safety be designed, fabricated, erected, and tested to quality standards commensurate with the importance of the safety function to be performed. GDC 1 is applicable to this Section since it includes requirements for quality standards that must be met, and records that must be kept concerning the quality standards for design, fabrication, erection, and testing of components important to safety. Components in the scope of this SRP Section that are subject to environmental design and qualification must have auditable records to document that environmental design and qualification requirements have been met. Meeting GDC 1 provides assurance that the equipment is of sufficiently high quality to be capable of performing their design safety functions acceptably during all anticipated operating conditions and that appropriate records are maintained to document meeting these requirements. 4. GDC 2, “Design Bases for Protection Against Natural Phenomena,” requires that components important to safety be designed to withstand the effects of natural 3.11-12 Revision 3 - March 2007 phenomena such as