Document: NUREG-0800
Document ID: 757b676a-0f71-4094-8677-ca3a50743281
Document Type: srp
Title: Revision 7 – August 2016
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1601/ML16019A344.pdf
Revision Date: 2023-06
Chapter: 7
Section ID: 7
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Content:
ases, uncertainty in the estimate of the difference between these times should be appropriately considered. This uncertainty could reduce the level of assurance and potentially invalidate a conclusion that operators can perform the action reliably within the time available. For complex situations and for actions with limited margin, such as less than 30 minutes between time available and time required, a more focused staff review will be performed. 4.7 Justification for Not Correcting Specific Vulnerabilities If any identified vulnerabilities are not addressed by design modification, refined analyses, or provision of alternate trip, initiation, or mitigation capability, justification should be provided. C. REFERENCES 1. Institute of Electrical & Electronics Engineers, IEEE 100, “The Authoritative Dictionary of Standards Terms,” Piscataway, NJ. 2. Institute of Electrical & Electronics Engineers, IEEE Std 279-1971, “Criteria for Protection Systems for Nuclear Power Generating Stations,” Piscataway, NJ. 3. Institute of Electrical & Electronics Engineers, IEEE Std 379, “IEEE Standard Application of the Single-Failure Criterion to Nuclear Power Generating Station Safety Systems,” Piscataway, NJ. 4. Institute of Electrical & Electronics Engineers, IEEE Std. 603-1991, “IEEE Standard Criteria for Safety Systems for Nuclear Power Generating Stations,” Piscataway, NJ. 5. Institute of Electrical & Electronics Engineers, IEEE Std. 7-4.3.2, “IEEE Standard Criteria for Digital Computers in Safety Systems in Nuclear Power Generating Stations,” Piscataway, NJ. 6. U.S. Nuclear Regulatory Commission, “Task Working Group No. 2: Diversity and Defense-in-Depth Issues Interim Staff Guidance,” DI&C-ISG-02, Revision 2, June 5, 2009. 7. U.S. Nuclear Regulatory Commission, “Quality Assurance Guidance for ATWS Equipment that is not Safety-Related,” Generic Letter 85-06, April 16, 1985. BTP 7-19-22 Revision 7 – August 2016 8. U.S. Nuclear Regulatory Commission,