|
|
Line 3: |
Line 3: |
| | issue date = 09/26/2017 | | | issue date = 09/26/2017 |
| | title = 10/24/2017, Presentation Slide Regarding Committee to Review Generic Requirements Meeting on Oconee Nuclear Station Cable Separation TIA | | | title = 10/24/2017, Presentation Slide Regarding Committee to Review Generic Requirements Meeting on Oconee Nuclear Station Cable Separation TIA |
| | author name = Benner E J, Lubinski J W | | | author name = Benner E, Lubinski J |
| | author affiliation = NRC/NRR/DE, NRC/NRR/DORL | | | author affiliation = NRC/NRR/DE, NRC/NRR/DORL |
| | addressee name = | | | addressee name = |
Line 9: |
Line 9: |
| | docket = 05000269, 05000270, 05000287 | | | docket = 05000269, 05000270, 05000287 |
| | license number = DPR-038, DPR-047, DPR-055 | | | license number = DPR-038, DPR-047, DPR-055 |
| | contact person = Johnston J D | | | contact person = Johnston J |
| | document type = Meeting Briefing Package/Handouts, Slides and Viewgraphs | | | document type = Meeting Briefing Package/Handouts, Slides and Viewgraphs |
| | page count = 15 | | | page count = 15 |
|
---|
Category:Meeting Briefing Package/Handouts
MONTHYEARML22251A2352022-09-14014 September 2022 Presentation Slides for September 14, 2022, Observation Public Meeting ML22130A0092022-04-28028 April 2022 Duke Presentation for April 28, 2022 Public Meeting - Bolting Integrity ML22130A0102022-04-28028 April 2022 Duke Presentation for April 28, 2022 Public Meeting - Containment Liner ML22067A1992022-03-0303 March 2022 Annual Assessment Meeting Presentation ML22063A1142022-01-17017 January 2022 Duke Presentation for Public Meeting on February 17, 2022 ML21235A0452021-08-25025 August 2021 August 25, 2021, Oconee Nuclear Station, Units 1, 2, and 3 Subsequent License Renewal Application Public Environmental Scoping Meeting Presentation ML21102A0632021-04-14014 April 2021 ONS Slides for Pre-Application Meeting to Discuss Proposed Relief Request Related to Code Case N-853 ML21089A1732021-03-30030 March 2021 EOC Slides Final ML21081A1242021-03-22022 March 2021 EOC Slides Final ML20300A0902020-10-27027 October 2020 Subsequent License Renewal Environmental Pre-Application Meeting - NRC Presentation ML20300A0872020-10-27027 October 2020 Subsequent License Renewal Application NRC Environmental Pre-Application Meeting - Duke Energy Presentation ML19318F2912019-11-18018 November 2019 Duke Energy Presentation for the Pre-submittal Meeting on November 18, 2019, Regarding the RPV Stud Examination Relief Request ML19302E0512019-11-0606 November 2019 High Energy Line Break License Amendment Public Meeting ML19214A0562019-08-0707 August 2019 Presentation: Duke Energy Presubmittal Meeting - August 7, 2019 ML19207A0172019-07-30030 July 2019 Summary of Meeting with Duke Energy Carolinas, LLC to Discuss Proposed License Amendment Request for Oconee Nuclear Station, Units 1, 2, and 3 Regarding High Energy Line Break Licensing Basis ML18227B3212018-09-0505 September 2018 Tornado License Amendment Pre-Application Meeting Slides ML18134A2292018-05-14014 May 2018 Summary of April 26, 2018, Public Teleconference with Duke Energy Carolinas, LLC to Discuss Proposed License Amendment and 3 Regarding Technical Specification 3.8.1 ML17258A0122017-09-26026 September 2017 Presentation Slide Regarding Committee to Review Generic Requirements Meeting on Oconee Nuclear Station Cable Separation TIA ML15348A2032015-12-14014 December 2015 Duke Energy Presentation in Support of December 15, 2015, Public Meeting with NRC Staff Cable Testing Discussion for Proposed 50.55a Alternative Request ML15343A1142015-12-0808 December 2015 NRC Questions to Duke Energy Regarding Cable Testing in Support of Public Meeting on 12/15/15 ML15321A1782015-11-17017 November 2015 Presentation Material in Support of November 18, 2015 Pre-Application Meeting Between NRC and Duke 50.55a(z) Alternative to Code and Standards Requirements ML15286A0762015-10-13013 October 2015 Duke Energy Presentation in Support of October 13, 2015, Public Meeting with NRC Staff Pre-Application Meeting for LAR to Support Khu Stator Replacement. (Revised) ML15282A0722015-10-0909 October 2015 Duke Energy Presentation in Support of October 13, 2015, Public Meeting with NRC Staff Pre-Application Meeting for LAR to Support Khu Stator Replacement ML15148A2632015-05-27027 May 2015 Meeting Slides from the May 27, 2015 Oconee Major Projects Between Duke Energy and NRC ML15113A6262015-04-23023 April 2015 April 14, 2015 Summary of Public Meeting on Oconee Nuclear Station, Units 1, 2 and 3 to Discuss the Annual Assessment ML14356A0062014-12-0303 December 2014 Presentation at December 3, 2014, Category 1 Public Meeting with Duke Energy Carolinas, LLC to Discuss NTTF Recommendation 2.1, Flooding Response ML14211A2132014-07-31031 July 2014 Duke Energy Presentation for 2014-07-31 Meeting ML14211A2162014-07-31031 July 2014 NRC Meeting Slides 7-31-14 Reg Conference ML14147A3652014-05-27027 May 2014 Annual Assessment Public Meeting Summary Memo ML14058A0772014-02-0404 February 2014 Slides on Oconee Ssf Flood Barrier Breach SDP Lessons Learned ML14058A0742014-02-0404 February 2014 Slides on Oconee Ssf Flood Barrier Breach SDP - Lessons Learned ML14058A0482014-02-0404 February 2014 NRR Briefing on Oconee Flood Protection (Nrr/Dra) ML13336A5452013-11-13013 November 2013 Presentation Slides from Meeting with Duke Energy Carolinas, LLC, Oconee Nuclear Station Units 1, 2, and 3, Keowee Hydro Unit Generator Field Pole Rewind Project - License Amendment Request ML13312A9882013-11-0808 November 2013 Summary of Public Meeting with Duke Energy Carolinas, LLC, to Provide Opportunities to Discuss the Planned Fukushima-Related Modifications ML13308A0072013-11-0101 November 2013 Open Phase Resolution Update Meeting Duke Energy Entitled Open Phase Detection and Protection. ML13275A2692013-10-0303 October 2013 10/3/13 Presentation Slides from Meeting with Duke Energy Carolinas, LLC, Oconee Nuclear Station Units 1, 2, and 3, Protected Service Water Alternate Cooling ML13275A2252013-09-24024 September 2013 9/24/13 Meeting Slides from Meeting with Duke Energy Carolinas, LLC, Oconee Nuclear Station Units 1, 2, and 3, Jocassee Dam Seismic Analysis ML13239A3372013-08-27027 August 2013 NRC Meeting Slides, Oconee Major Project Meeting - August 28, 2013 ML13239A3402013-08-27027 August 2013 Presentation for NRC Projects ML13099A4472013-04-10010 April 2013 Slides from Meeting with Duke Energy Carolinas, LLC, Oconee Nuclear Station Units 1, 2, and 3, Milestones for Corrective Actions for an Apparent Violation of a License Condition on Fire Protection ML13095A2132013-04-0909 April 2013 Slides from Meeting with Duke Energy Carolinas, LLC, Oconee Nuclear Station Units 1, 2, and 3, External Flood Reevaluation ML13123A2042013-03-25025 March 2013 Slides from Meeting with Duke Energy Carolinas, LLC, Oconee Nuclear Station Units 1, 2, and 3, Concerning the Flooding Hazard Reevaluation Report ML13064A1022013-03-0505 March 2013 Slides from Predecisional Enforcement Conference with Duke Energy Carolinas, LLC, Oconee Nuclear Station Units 1, 2, and 3, Apparent Violation of a License Condition on Fire Protection ML13056A1042013-02-0606 February 2013 Briefing Slides on the Fliod Scenario Rupture of Jocassee Dam ML13056A1032013-02-0606 February 2013 Briefing on Draft Information Notice - Potential Nonconservative Screening Value for Dam Failure Frequency in Probabilistic Risk Assessments. ML13056A1022013-02-0606 February 2013 Meeting Slides on Oconee Flood Issue Jocassee Dam Failure Frequency ML13056A0992013-02-0606 February 2013 Meeting Slides on Oconee Ssf Flood Barrier Breach Sdsp - Lessons Learned ML13052A7822013-02-0606 February 2013 Slides on Oconee Ssf Flood Barrier Breach SDP - Lessons Learned ML13035A2442013-01-30030 January 2013 Projects Meeting - NRC Slides ML13035A2332013-01-30030 January 2013 Projects Meeting - Licensee'S Public Meeting Slides 2022-09-14
[Table view] Category:Slides and Viewgraphs
MONTHYEARML23087A2972023-04-17017 April 2023 Annual Assessment Meeting Presentation ML22251A2352022-09-14014 September 2022 Presentation Slides for September 14, 2022, Observation Public Meeting ML22130A0102022-04-28028 April 2022 Duke Presentation for April 28, 2022 Public Meeting - Containment Liner ML22130A0092022-04-28028 April 2022 Duke Presentation for April 28, 2022 Public Meeting - Bolting Integrity ML22109A2122022-04-20020 April 2022 Duke Energy Pre-Submittal Public April 20, 2022, Meeting Presentation ML22075A2012022-03-0707 March 2022 Duke 03/07/2022 Presentation - Bolting Integrity ML22067A1992022-03-0303 March 2022 Annual Assessment Meeting Presentation ML22301A1672022-02-0505 February 2022 Presentation 5 - Oconee Trip and Notification of Unusual Event on February 5, 2022 ML22063A1142022-01-17017 January 2022 Duke Presentation for Public Meeting on February 17, 2022 ML21322A3262021-11-29029 November 2021 Duke Energy November 29, 2021 Pre-Submittal Public Meeting Slides for EOF Relocation Licensing Amendment Request ML21235A0452021-08-25025 August 2021 August 25, 2021, Oconee Nuclear Station, Units 1, 2, and 3 Subsequent License Renewal Application Public Environmental Scoping Meeting Presentation ML21102A0632021-04-14014 April 2021 ONS Slides for Pre-Application Meeting to Discuss Proposed Relief Request Related to Code Case N-853 ML21089A1732021-03-30030 March 2021 EOC Slides Final ML21081A1242021-03-22022 March 2021 EOC Slides Final ML21034A5552021-01-26026 January 2021 SLRA - NRC Presubmittal Meeting Slides ML21034A5562021-01-26026 January 2021 SLRA - Duke Presubmittal Meeting Slides ML20300A0872020-10-27027 October 2020 Subsequent License Renewal Application NRC Environmental Pre-Application Meeting - Duke Energy Presentation ML20300A0902020-10-27027 October 2020 Subsequent License Renewal Environmental Pre-Application Meeting - NRC Presentation ML20134J0052020-05-13013 May 2020 EOC Slides (2) ML20125A2312020-05-0404 May 2020 EOC Slides ML19318F2912019-11-18018 November 2019 Duke Energy Presentation for the Pre-submittal Meeting on November 18, 2019, Regarding the RPV Stud Examination Relief Request ML19302E0512019-11-0606 November 2019 High Energy Line Break License Amendment Public Meeting ML19214A0562019-08-0707 August 2019 Presentation: Duke Energy Presubmittal Meeting - August 7, 2019 ML18086A7742018-02-21021 February 2018 LOR Program Biennial Inspection 71111.11B Exam Overlap Issues ML17296A1462017-10-24024 October 2017 Duke Energy Presentation to CRGR - Oconee Nuclear Station ML17258A0122017-09-26026 September 2017 Presentation Slide Regarding Committee to Review Generic Requirements Meeting on Oconee Nuclear Station Cable Separation TIA ML15348A2032015-12-14014 December 2015 Duke Energy Presentation in Support of December 15, 2015, Public Meeting with NRC Staff Cable Testing Discussion for Proposed 50.55a Alternative Request ML15282A0722015-10-0909 October 2015 Duke Energy Presentation in Support of October 13, 2015, Public Meeting with NRC Staff Pre-Application Meeting for LAR to Support Khu Stator Replacement ML15148A2632015-05-27027 May 2015 Meeting Slides from the May 27, 2015 Oconee Major Projects Between Duke Energy and NRC ML15113A6262015-04-23023 April 2015 April 14, 2015 Summary of Public Meeting on Oconee Nuclear Station, Units 1, 2 and 3 to Discuss the Annual Assessment ML14356A0062014-12-0303 December 2014 Presentation at December 3, 2014, Category 1 Public Meeting with Duke Energy Carolinas, LLC to Discuss NTTF Recommendation 2.1, Flooding Response ML14211A2132014-07-31031 July 2014 Duke Energy Presentation for 2014-07-31 Meeting ML14211A2162014-07-31031 July 2014 NRC Meeting Slides 7-31-14 Reg Conference ML14147A3652014-05-27027 May 2014 Annual Assessment Public Meeting Summary Memo ML14058A0512014-02-0404 February 2014 Slides on Oconee Nuclear Station - Standby Shutdown Facility (Ssf) Flood Barrier Breach Violation SDP Assessment ML14058A0352014-02-0404 February 2014 Meeting Slides on Oconee Flood Protection and the 10 CFR 50.54(f) Response ML14055A4102014-02-0404 February 2014 Meeting Slides on Standby Shutdown Facility Flood Barrier Breach Violation Informal Reassessment ML14058A0742014-02-0404 February 2014 Slides on Oconee Ssf Flood Barrier Breach SDP - Lessons Learned ML14058A0772014-02-0404 February 2014 Slides on Oconee Ssf Flood Barrier Breach SDP Lessons Learned ML13336A5452013-11-13013 November 2013 Presentation Slides from Meeting with Duke Energy Carolinas, LLC, Oconee Nuclear Station Units 1, 2, and 3, Keowee Hydro Unit Generator Field Pole Rewind Project - License Amendment Request ML13312A9882013-11-0808 November 2013 Summary of Public Meeting with Duke Energy Carolinas, LLC, to Provide Opportunities to Discuss the Planned Fukushima-Related Modifications ML13308A0072013-11-0101 November 2013 Open Phase Resolution Update Meeting Duke Energy Entitled Open Phase Detection and Protection. ML13275A2692013-10-0303 October 2013 10/3/13 Presentation Slides from Meeting with Duke Energy Carolinas, LLC, Oconee Nuclear Station Units 1, 2, and 3, Protected Service Water Alternate Cooling ML13275A2252013-09-24024 September 2013 9/24/13 Meeting Slides from Meeting with Duke Energy Carolinas, LLC, Oconee Nuclear Station Units 1, 2, and 3, Jocassee Dam Seismic Analysis ML13239A3402013-08-27027 August 2013 Presentation for NRC Projects ML13239A3372013-08-27027 August 2013 NRC Meeting Slides, Oconee Major Project Meeting - August 28, 2013 ML13226A2662013-05-0303 May 2013 E-mail from J. Boska, NRR to S. Hicks, Ois FW: Change in Public Availability of Slide Package ML13226A2592013-04-23023 April 2013 E-mail from D. Hubbard, Duke to J. Boska, NRR on Non-Security Sensitive Version of March 25th Presentation ML13226A2652013-04-23023 April 2013 E-mail from D. Hubbard, Duke to J. Boska, NRR on Security Sensitive Version ML13099A4472013-04-10010 April 2013 Slides from Meeting with Duke Energy Carolinas, LLC, Oconee Nuclear Station Units 1, 2, and 3, Milestones for Corrective Actions for an Apparent Violation of a License Condition on Fire Protection 2023-04-17
[Table view] |
Text
Committee to Review Generic Requirements Meeting on Oconee Nuclear Station Cable Separation TIASeptember 26, 2017 John LubinskiDivision of Engineering Eric BennerDivision of Operating Reactor LicensingOffice of Nuclear Reactor Regulation Agenda*Background*Key CRGR Questions
- Key Technical and Licensing Issues
Background*CDBI at Oconee Nuclear Station (ONS) (7/27/2014) identified an unresolved item (URI) involving the licensing bases for cable configurations in recently installed
underground raceways*The URI questioned whether ONS appropriately considered electrical system design requirements and licensing basis when implementing this modification under 50.59.*On October 16, 2014, Region II requested assistance from the Office of Nuclear Reactor Regulation (NRR) to provide
answers to questions related to the URI in task interface agreement (TIA) 2014-05.
3 Background*On August 2, 2016, the draft TIA response was sent to Duke Power for a fact check and made publicly available. *As a part of the fact check Duke Power indicated a number of disagreements with NRC interoperation of both technical issues and the ONS licensing basis*Consistent with the recent CRGR recommendations to improve oversight in identifying potential backfitting issues, the proposed TIA response will be issued only after CRGR
review 4 Background*The non-safety related 13.8 kVacPSW cables were not part of the original licensing basis 5Configuration priorto installing
cables in common trenchConfigurationafter installing cables in common trenchSafety related 125V DC power/control cables and safety related 120V AC ESPS cables directly buried in ground with 'adequate' separation between the two trainsThe licensee rerouted directly buriedcables to trench # 3 and Manhole6 which included the following safety related and non-safety related cables: Safety related cables:-13.8 kVac Emergency power from KHU to Transformer
CT4
-4.16 kVac CX Auxiliary Power from Transformer CT4 switchgear to KHU
-125 Vdc supervisory cables A
-125 Vdc control and power cable for A and B trainsNon-safety related cables:-13.8 kVac PSW Power Cables from KHU to Transformer CT6 and CT7
-13.8 kVac PSW Power Cables from Fant lineBoth trains of ESPS A and B are interconnected at KHSAnd ONS panels -configuration in panels did not
change. Adequately separation from power cables (4.16kV and 13.8kV AC) such that a fault in one train would not adversely impact redundant trains (approximately 10 feet apart between redundant trains)Separation between medium voltage and low voltage power/control cables such that a single failure would not adversely impact redundant trainsSafety related 4.16kV and 13.8kV AC power cables directly buried with adequate separationBoth trains of ESPS A and B are interconnected at KHSAnd ONS panels
Background
6
Background
7 Key CRGR Questions*The TIA response:-addresses site-specific licensing basis questions and applies only to ONS-does not communicate a new requirement or staff position
-does not increase, reduce, or modify existing requirements or NRC staff positions-is not a request for information
-is not a backfit*TIA response will support RII office actions to close out existing Unresolved Items.
8 Key Technical and Licensing Issues*ONS licensing basis with respect to IEEE Std. 279 *Use of cable shielding vice cable armor
- Evaluation of timing of single failure is not limited to the event start time*No distinction between passive and active electrical single failures*Treatment of non-safety related cables in the ONS licensing basis 9
ONS licensing basis with respect to IEEE Std. 279 *NRC and ONS agree IEEE Std. 279-1968 is the licensing basis*NRC and ONS agree, based on August 5, 1974 Duke letter ("The Oconee ECCS actuation system conforms to the single failure requirements of IEEE 279-1971.") that the single failure requirements of IEEE Std. 279-1971 are the licensing basis.*ONS believes Section 4.2, IEEE Std. 279-1971, is the only section that is part of the licensing basis*NRC believes Sections 4.2, 4.7, 4.11, and 4.17, IEEE Std. 279-1971, are part of the licensing basis.*Even if NRC agreed with ONS on the applicability of IEEE Std. 279-1971 (i.e., only Section 4.2), the conclusions in the TIA regarding single failure would be the same.
10 Use of cable shielding vice cable armor*Cable armor is a mechanically strong and flexible sheath which can be applied over a variety of cable cores to protect from failure of nearby cables -ONS licensing basis allows the use of interlocked armor cable to provide mechanical protection -Bronze tape is not equivalent to interlocked armor cable and cannot be credited to prevent consequential damage to
nearby cables *Cable shielding of an electric power cable is the practice of confining the electric field of the cable to preclude excessive voltage stress on voids between conductor and insulation -Neither interlocked armor cable nor bronze tape provides cable shielding 11 Evaluation of timing of single failure is not limited to
the event start time*ONS licensing basis includes the single failure requirements of IEEE Std. 279-1971 and it does not allow restricting the timing of when single failures may
occur. *Postulating the single failure immediately on demand of a component to function, the licensee failed to establish the most limiting single failure that could
occur, as required 12 No distinction between passive and active electrical
single failures*ONS UFSAR Section 8.3.1.2, "Analysis," the licensee's current licensing basis, states, in part, that:-The basic design criterion for the electrical portion of the emergency electric power system of a nuclear unit, including the generating sources, distribution system, and controls is that a single failure of any component, passive or active, will not preclude the system from
supplying emergency power when required.*NRC's position on the definition of single failure and how single failure was evaluated during the licensing of plants was discussed
in SECY-77-439 -Single Failure Criterion to systems evaluation depends not only on the initiating event that invokes safety action of these systems, together with consequential failures, but also on active or passive electrical failures, which can occur independent of the event 13 Treatment of non-safety related cables in the ONS
licensing basis*Only safety related or Class 1E designated components are credited to mitigate design basis events. The single failure criteria requirements of IEEE Std. 279-1971 apply to Class 1E*The non-safety related power cables in Trench #3 and Manhole #6 are not credited in the ONS licensing basis for mitigating
design basis events*However, the license must account for the impacts of worst-case credible failures of non-safety equipment on Class 1E circuits as required by IEEE Std. 279-1968 (Section X)*In addition the interconnected nature of the Class 1E DC systems in the ONS KHU start panels and the Keowee hydro-station KHU start panels present vulnerabilities where DC to DC interactions could disable the Keowee emergency power systems 14 Path Forward*Duke may request a public meeting with CRGR to present their perspectives*After CRGR endorsement, NRR will issue the TIA response to RII and make it available to the public*Region II will conduct exit meeting (addressing URI) with licensee and, as appropriate, will communicate apparent violations to Duke
Energy.*Region II will evaluate Oconee's operability determinations for the affected systems and equipment*Region II will disposition the findings in accordance with IMC 0612, conduct appropriate follow-up inspections*The process would allow Duke an opportunity to dispute any violations, including providing any claims of backfitting.
15