Document: NUREG-0800
Document ID: 478329d7-b28f-4334-99e3-c149e19d1cdd
Document Type: srp
Title: ENVIRONMENTAL QUALIFICATION OF MECHANICAL AND ELECTRICAL EQUIPMENT
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340658.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.11
CFR Part: 
CFR Title: 

Content:
r inside or outside of the drywell for boiling water reactor (BWR) plants. The ASB, CSB, ICSB, PSB, and RSB confirm the validity of the descriptions of the normal, abnormal, accident, and postaccident environments provided in the SAR. They will also confirm the acceptability of the values provided in the SAR for the length of time that equipment is required to operate in accident environments. With regard to the environments resulting from loss of environmental control systems (ventilation, heating, air conditioning), the ASB will confirm the 3.11-2 Rev. 2 - July 1981 description of these environments as provided in the SAR for those areas which contain equipment including electrical control and instrumentation equipment. The QAB reviews and determines that the applicant's QA program described in Chapter 17 of the SAR satisfies the requirements of 10 CFR 50, Appendix B, Criteria III, XI, and XVII. The AEB reviews the adequacy of the radiation and chemical conditions for qualification for the abnormal, accident, and postaccident environments. Specific information may be requested from the MEB as needed. 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. IL. 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. Specific criteria, task action plan items, regulatory guide, and industry standards that provide information, recommendations and guidance and, in general, describes a basis acceptable to the staff that may be used to implement the requirements of General Design Criterion 4 are as follows: Simply stated, the general requirements for environmental design and qualifica- tion are as follows: (1) The equipment