Document: NUREG-0800
Document ID: 63521156-eb6b-472c-9560-1e85462dc1be
Document Type: srp
Title: ENVIRONMENTAL QUALIFICATION OF MECHANICAL AND ELECTRICAL
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070288.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.11
CFR Part: 
CFR Title: 

Content:
Radiation Protection Branch (PERB) and the EMCB review the adequacy of the radiation and chemical conditions for 51 qualification for the abnormal, accident, and postaccident environments, as well as anticipated operational occurrences.52 H. Specific information may be requested from the MEBMechanical Engineering Branch (EMEB), as needed. 53 I. The EMCB reviews the adequacy of programs for assuring the integrity of bolting and threaded fasteners, including provisions for installation and maintenance of mounting and bolting details equivalent to those used for equipment qualification, as part of its primary review responsibility for SRP Section 3.13 (proposed).54 J. For new applications, the Containment Systems and Severe Accident Branch (SCSB) reviews the survivability of equipment used to mitigate severe accidents as part of its primary review responsibilities for SRP Section 19.2.4 (proposed).55 3.11-5 DRAFT Rev. 3 - April 1996 For those areas of review identified above as being reviewed as part of the primary responsibility of other branches, the acceptance criteria necessary for the review and their methods of application are contained in the referenced SRP section of the corresponding primary branch.56 II. ACCEPTANCE CRITERIA The general requirements for environmental design and qualification of all equipment are embodied in General Design Criterion 4 of Appendix A to 10 CFR Part 50.The acceptance criteria for environmental qualification of electrical and mechanical equipment are based on meeting the relevant requirements of the following regulations:57 A. 10 CFR Part 50, Appendix A, General Design Criterion 1, "Quality Standards and Records." B. 10 CFR Part 50, Appendix A, General Design Criterion 2, "Design Bases for Protection Against Natural Phenomena." C. 10 CFR Part 50, Appendix A, General Design Criterion 4, "Environmental and Dynamic Effects Design Bases." D. 10 CFR Part 50, Appendix A, General Design Criterion 23, "Protection System Failure Modes." E.