Document: NUREG-0800
Document ID: c6d22b06-cf66-4372-99f1-171ef66fe56c
Document Type: srp
Title: B-6
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1515/ML15159A226.pdf
Revision Date: 2023-06
Chapter: 7
Section ID: 7.1
CFR Part: 
CFR Title: 

Content:
f the specific event. 4.3. Quality of Components and Modules (IEEE Std 279-1971, Clause 4.3) The applicant or licensee should confirm that quality assurance provisions of Appendix B to 10 CFR Part 50, “Quality Assurance Criteria for Nuclear Power Plants and Fuel Reprocessing Plants,” are applicable to the protection system. The evaluation of the adequacy of the quality assurance program is addressed in the review of Chapter 17 of the SAR. 4.4. Equipment Qualification (IEEE Std 279-1971 Clause 4.4) The applicant or licensee should confirm that the protection system equipment is designed to meet the functional performance requirements over the range of environmental conditions for the area in which it is located, as identified by Clauses 3(7) and 3(9) of IEEE Std 279-1971, and discussed in Section 3 above. I&C staff reviews mild environment qualification and electromagnetic interference (EMI) qualification of protection system I&C equipment, and consults with other organizations to confirm qualification for harsh environments and seismic loads. RG 1.209, “Guidelines for Environmental Qualification of Safety-Related Computer-Based Instrumentation and Control Systems in Nuclear Power Plants,” provides guidance for mild environment qualification. Additionally, the applicant or licensee should confirm that a single failure within the environmental control system, for any area in which protection system equipment is located, will not result in conditions that could result in damage to the protection system equipment, nor prevent the balance of the protection system not within the area from accomplishing its safety function. In this regard, the loss of an environmental control system is treated as a single failure that should not prevent the protection system from accomplishing its safety functions.