Document: NUREG-0800
Document ID: 949ca18d-b0e4-4b54-9ca9-fdb657988111
Document Type: srp
Title: Revision 5 - March 2007
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0706/ML070660170.pdf
Revision Date: 2023-06
Chapter: 7
Section ID: 7
CFR Part: 
CFR Title: 

Content:
y to IEEE Std. 603-1991, Clauses 5.8.2 and 5.8.3. The regulatory guide also provides bases for evaluating the adequacy of bypass and inoperable status indication for I&C systems important to safety as addressed in the review of Section 7.5 of the SAR. (c) Regulatory Guide 1.53, “Application of the Single-Failure Criterion to Nuclear Power Plant Protection Systems” (endorses IEEE Std. 379-2000, "Standard Application of the Single-Failure Criterion to Nuclear Power Generating Station Safety Systems”) Applicability - All I&C safety systems and supporting data communication systems. Review Methods - Regulatory Guide 1.53 provides a basis for evaluating conformance to GDC 21 and IEEE Std. 279-1971, Clause 4.2. The guidance applies equally to IEEE Std. 603-1991, Clause 5. (d) Regulatory Guide 1.62, “Manual Initiation of Protection Action” Applicability - RTS, ESFAS, and diverse I&C systems. Review Methods - Regulatory Guide 1.62 provides a basis for evaluating conformance to IEEE Std. 279-1971, Clause 4.17. The guidance applies equally to IEEE Std. 603-1991, Clauses 6.2 and 7.2. Regulatory Guide 1.62 also provides guidance that should be considered in the review of manual initiation of ATWS mitigation and diverse actuation system functions. (e) Regulatory Guide 1.75, “Criteria for Independence of Electrical Safety Systems” (endorses IEEE Std. 384-1992, “IEEE Standard Criteria for Independence of Class 1E Equipment and Circuits”) Applicability - All I&C systems. Review Methods - Regulatory Guide 1.75 provides a basis for evaluating conformance to GDC 21 and IEEE Std. 279-1971, Clauses 4.6 and 4.22, and for evaluating the adequacy of I&C systems important to safety that incorporate redundant or diverse features to satisfy the single-failure criterion. The guidance applies equally to IEEE Std. 603-1991, Clauses 5.6 and 5.11. The I&C evaluation is limited to the review of components and electrical wiring inside racks, panels, and control boards for systems