|
|---|
Category:- No Document Type Applies
MONTHYEARML22314A0752022-11-10010 November 2022
2B - Exam Administrative Items - Normal Release
ML22034A3992022-02-16016 February 2022
Enclosure 1 - IP 71130.03 Cy 2021 - IR 8 Baseline Inspection Completion
ML22034A3952022-02-16016 February 2022
Enclosure 3 - IP 96001 CY2021 - IR 8 Baseline Inspection Completion
ML22034A3972022-02-16016 February 2022
Enclosure 2 - IP 92707 CY2021 - IR 8 Baseline Inspection Completion
ML18338A0882018-12-0404 December 2018
Attachment FormerFAQResponses_11302018
ML18180A2602018-06-29029 June 2018
NFPA 805 FAQ 10-0059 - NFPA 805 Monitoring
ML18073A3582018-03-15015 March 2018
NRC Staff Comments FAQ 18-0015
ML17235B1482017-08-23023 August 2017
U.S. Nuclear Regulatory Commission - Tornado Missile Risk Evaluator (TMRE) Methodology Topics and Methodology Feedback
ML16315A2892016-11-10010 November 2016
Attachment 5 EPRI RETRAN-3D Computer Code Manuals, NP-7450(A)
RA-16-003, Attachment 5 EPRI RETRAN-3D Computer Code Manuals, NP-7450(A)2016-11-10010 November 2016
Attachment 5 EPRI RETRAN-3D Computer Code Manuals, NP-7450(A)
ML18039A8562016-06-0202 June 2016
Fpra FAQ 16-0011 - Cable Tray Ignition - Draft
ML14191B2622014-07-10010 July 2014
NFPA 805 Transition FAQ 14-0070, Revision 0
ML13170A3282013-06-13013 June 2013
Special Inspection Question & Answers
ML1214300352012-05-21021 May 2012
NFPA 805 Transition FAQ 12-0062, Revision 1
ML12056A0522012-03-12012 March 2012
Enclosure 6 - List of Power Reactor Licensees and Holders of Construction Permits in Active or Deferred Status
ML1204105892012-02-10010 February 2012
NFPA 805 Transition FAQ 10-0059, Revision 5
ML1204105852012-02-10010 February 2012
NRC Staff Response to NFPA 805 Transition FAQ 10-0059, Revision 4
ML1203201932012-02-0101 February 2012
NFPA 805 Transition FAQ 10-0059, Revision 4
ML1202603842012-01-13013 January 2012
FAQ Revision NFPA 805 Monitoring
ML1201903132012-01-13013 January 2012
NFPA 805 Transition FAQ 10-0059, Rev 3
ML1202603722012-01-13013 January 2012
NFPA 805 Monitoring
ML1202604252012-01-13013 January 2012
FAQ-1 - NFPA 805 Monitoring
ML1202604402012-01-13013 January 2012
FAQ - NFPA 805 Monitoring
ML1128600532011-09-30030 September 2011
NRC Staff Comments on FAQ 59R2
ML1127304102011-09-30030 September 2011
NRC Staff Response to NFPA 805 Transition FAQ 10-0059, Revision 2
RA-11-025, Enclosure 1, Attachment 2 - Duke Energy Corporation and Progress Energy, Inc. Organization Charts Post Merger2011-09-0202 September 2011
Enclosure 1, Attachment 2 - Duke Energy Corporation and Progress Energy, Inc. Organization Charts Post Merger
ML1123401522011-08-19019 August 2011
NFPA 805 Transition FAQ 10-0059, Rev 2
ML1111804812011-04-21021 April 2011
NFPA 805 Transition FAQ 10-0059, Rev 1
ML1109105082011-03-31031 March 2011
NRC Staff Response to NFPA 805 Transition FAQ 10-0059, Revision 0 (Part 2)
ML0933507512010-01-14014 January 2010
Temporary Instruction 2515/180, Managing Fatigue
ML0916101892009-06-0303 June 2009
NFPA 805 Transition Pilot Plant FAQ 07-0035, Revision 2, Bus Duct Counting Guidance for High Energy Arcing Faults
ML0909905112009-04-29029 April 2009
Enclosure 1: Shearon Harris Regulatory Audit Participants
ML1020301612009-04-12012 April 2009
Tritium Concern Talking Points
ML1019402162009-04-12012 April 2009
Offsite Notification to State/Local Agencies Regarding Tritium Release Onsite - EN 44951
ML0909305002009-04-0303 April 2009
Afpb Staff Response to NFPA 805 Transition Pilot Plant FAQ 07-0035, Revision 1
ML1020301722009-04-0101 April 2009
Tritium Questions and Answers
ML0908500122009-03-26026 March 2009
NFPA 805 Transition Pilot Plant FAQ 07-0035, Revision 1, Bus Duct Counting Guidance for High Energy Arching Faults
ML0902902182009-01-22022 January 2009
NFPA 805 Transition Pilot Plant FAQ 07-0030
ML1019402762008-12-0202 December 2008
Nuclear Condition Report for Tritium in Groundwater
NEI 04-02, NFPA 805 Transition Pilot Plant FAQ 07-0039, Revision 2, Lessons Learned - NEI 04-02 B-2 Table2008-09-12012 September 2008
NFPA 805 Transition Pilot Plant FAQ 07-0039, Revision 2, Lessons Learned - NEI 04-02 B-2 Table
ML0825904662008-09-12012 September 2008
NFPA 805 Transition Pilot Plant FAQ 07-0039, Revision 2, Lessons Learned - NEI 04-02 B-2 Table
ML0914201382008-09-0909 September 2008
NFPA 805 Transition Pilot Plant FAQ 07-0039, Revision 2 - Clean Version
ML0821000342008-07-24024 July 2008
NFPA 805 Transition Pilot Plant FAQ 07-0038, Revision 1
ML0813006972008-05-0909 May 2008
NFPA 805 Transition Pilot Plant FAQ 07-0032, Revision 2
ML0809101362008-03-28028 March 2008
NFPA 805 Transition Pilot Plant FAQ 07-0039, Revision 1, Lessons Learned - NEI 04-02 B-2 and B-3 Tables
ML0807004112008-03-10010 March 2008
NFPA 805 Transition Pilot Plant FAQ 07-0032, Revision 1, Clarification of 10 CFR 50.48(c), 50.48(a), and GDC 3.
ML0807001572008-03-10010 March 2008
NFPA 805 Transition Pilot Plant FAQ 06-0025, Revision 5
ML0806704192008-03-0707 March 2008
CDBI Findings
ML0735500252007-12-20020 December 2007
NFPA 805 Transition Pilot Plant FAQ 07-0036, Revision 1
ML0735500212007-12-20020 December 2007
NFPA 805 Transition Pilot Plant FAQ 06-0025, Revision 4
2022-02-16
[Table view] |
Text
FAQ Number 06-0018, Revision 0 Plant: Harris Nuclear Plant (HNP) FAQ # 06-0018 Rev. 0 Submittal Date: 11-6-06 Licensee
Contact:
David Miskiewicz Tele/email 919-546-7588 NRC
Contact:
Tele/email Distribution: Check all that apply (NEI Internal Use)
FPWG RIRWG NSSS OG NFPA 805 TF
Subject:
Clarification/enhancement of Ignition Source counting guidance for Main Control Board (MCB) in NUREG/CR-6850, supporting NFPA-805 Fire PRA application.
Interpretation of guidance? Yes Proposed new guidance not in NEI 04-02? Yes Details:
NEI 04-02 Guidance needing interpretation (include section, paragraph number, and line number):
New attachment on interpretation issues Circumstances requiring guidance interpretation or new guidance:
NUREG/CR-6850, Section 6.5.6 The guidance provided in NUREG/CR-6850 for Task 6, Fire Ignition Frequency, is subject to application inconsistency in the treatment of Main Control Board (Bin 4). The guidance for Task 6 does not provide any specific definition or characterization of what constitutes a Main Control Board (MCB) other than a reference to it being the central element of the room. A discussion amongst the Pilot Plants that included consideration of other plants in their respective fleets found wide variability in the configuration of the main control room. There was a concern that inconsistent treatment of this bin would unnecessarily challenge the completion and review of the Fire PRA. This challenge would be manifested by a notable change in the fire frequency assigned to an individual panel depending on whether it was counted as Bin 4 or Bin 15.
Further review of NUREG/CR-6850 found that a definition of MCB is provided in Appendix L.
However, this Appendix develops a fire modeling treatment of fire behavior within a panel enclosure. There was a concern that absent documented agreement, there could be a future challenge to the use of the definition in Appendix L for the purposes of Task 6, Bin 4 counting.
Detail contentious points if licensee and NRC have not reached agreement This topic has impact on the NFPA-805 pilots, non-pilots and other users of NUREG/CR-6850.
1
Potentially relevant existing FAQ numbers:
This guidance is specific to the characterization of Main Control Board for Bin 4 determination.
The characterization and counting of electrical cabinets for Bin 15 determination is addressed by FAQ 06-0016.
Response Section It is proposed that the definition of Main Control Board provided in NUREG/CR-6850, Appendix L be accepted as also being applicable for Task 6, Bin 4 counting.
Basis:
The guidance proposed will provide more consistency when determining plant specific control room ignition frequencies while working within the bounds of the exiting data provided by the NUREG. This should facilitate the review and acceptability of the results.
