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Initiation
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MONTHYEARML12025A1242012-01-20020 January 2012 Tornado and High Energy Line Break Mitigation License Amendment Requests (Lars) - Supplemental Responses to Request for Additional Information (RAI) Nos. 61, 62, and 107 Project stage: Supplement ML12047A1772012-02-16016 February 2012 Request for Additional Information Regarding the License Amendment Requests for Upgrading the Licensing Basis for High Energy Line Break Mitigation Project stage: RAI ML12144A4442012-06-11011 June 2012 Request for Additional Information Regarding the License Amendment Request for Licensing Basis for the Protected Service Water System (TAC ME7737, ME7738, ME7739, ME7746, ME7747, & ME7748) Project stage: RAI ML13262A3432013-09-19019 September 2013 10/3/2013 Meeting Notice with Duke Energy Carolinas, LLC, to Discuss the Proposed LAR Protected Service Water System Operation for the Oconee Nuclear Station, Units 1, 2, and 3 (TAC Nos. ME7737, ME7738, ME7739, ME7746, ME7747, and ME7748 Project stage: Meeting 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 Project stage: Request ML13281A6972013-10-21021 October 2013 10/3/13 Summary of Meeting with Duke Energy Carolinas, LLC to Discuss the Protected Service Water System Operation - Oconee Nuclear Station Units 1, 2, and 3 (TAC Nos. ME7737, ME7738, ME7739, ME7746, ME7747, and ME7748) Project stage: Meeting ONS-2013-037, Licensing Basis for Protected Service Water System - Responses to Request for Additional Information Item Nos. 172 Through 189, License Amendment Request (LAR) 2008-07 - Supplement 72013-12-18018 December 2013 Licensing Basis for Protected Service Water System - Responses to Request for Additional Information Item Nos. 172 Through 189, License Amendment Request (LAR) 2008-07 - Supplement 7 Project stage: Supplement ML14043A2772014-01-28028 January 2014 1/28/14 E-mail from R.Guzman to T.Brown Request for Additional Information - Protected Service Water Modification Calculation OSC-9211 Project stage: RAI ONS-2014-021, Licensing Basis for the Protected Service Water System - Response to Request for Additional Information (RAI) No. 190; Revised Responses to RAI Nos. 134 and 165; License Amendment Request (LAR) 2008-07 - Supplement 82014-02-14014 February 2014 Licensing Basis for the Protected Service Water System - Response to Request for Additional Information (RAI) No. 190; Revised Responses to RAI Nos. 134 and 165; License Amendment Request (LAR) 2008-07 - Supplement 8 Project stage: Supplement ONS-2014-048, Licensing Basis for the Protected Service Water (Psw) System - Response to Request for Additional Information (RAI) Nos. 191-194; License Amendment Request (LAR) 2008-07 - Supplement 92014-04-0303 April 2014 Licensing Basis for the Protected Service Water (Psw) System - Response to Request for Additional Information (RAI) Nos. 191-194; License Amendment Request (LAR) 2008-07 - Supplement 9 Project stage: Supplement ML14099A5172014-04-0909 April 2014 Duke Energy Supplemental Response Protected Service Water LAR - Gothic Modeling Questions - 4/9/14 E-mail from R.Gambrell (Duke Energy) to R.Guzman (NRC) Project stage: Supplement ONS-2014-056, License Condition for the Unit 3 High Energy Line Break (Helb); License Amendment Request (LAR) 2008-07; Supplement 102014-04-11011 April 2014 License Condition for the Unit 3 High Energy Line Break (Helb); License Amendment Request (LAR) 2008-07; Supplement 10 Project stage: Supplement ML14157A2402014-04-29029 April 2014 NRR E-mail Capture - Psw Commitments Project stage: Request ONS-2014-061, Licensing Basis for the Protected Service Water (Psw) System - Response to Requests for Additional Information Regarding Psw Cabling Aging Management Program and Fant Line Supply to Psw Degraded Voltage Protection; License Amendment Req2014-07-24024 July 2014 Licensing Basis for the Protected Service Water (Psw) System - Response to Requests for Additional Information Regarding Psw Cabling Aging Management Program and Fant Line Supply to Psw Degraded Voltage Protection; License Amendment Request Project stage: Response to RAI ML14206A7902014-08-13013 August 2014 Issuance of Amendments Regarding Implementation of the Protected Service Water System Project stage: Approval 2014-01-28
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Category:Letter type:ONS
MONTHYEARONS-2018-025, 2017 Annual Radiological Environmental Operating Report (AREOR)2018-05-15015 May 2018 2017 Annual Radiological Environmental Operating Report (AREOR) ONS-2018-024, 2017 Annual Radioactive Effluent Release Report (ARERR)2018-04-30030 April 2018 2017 Annual Radioactive Effluent Release Report (ARERR) ONS-2018-032, Ufsar/Selected Licensee Commitment Changes2018-04-17017 April 2018 Ufsar/Selected Licensee Commitment Changes ONS-2018-029, Technical Specifications Task Force (TSTF) - 448, Revision 3, Control Room Habitability, License Amendment Request No. 2015-03, Supplement 32018-04-0404 April 2018 Technical Specifications Task Force (TSTF) - 448, Revision 3, Control Room Habitability, License Amendment Request No. 2015-03, Supplement 3 ONS-2018-027, Oconee, Units 1, 2, and 3, Submittal of Emergency Plan Revision 2018-0022018-03-28028 March 2018 Oconee, Units 1, 2, and 3, Submittal of Emergency Plan Revision 2018-002 ONS-2018-023, Response to Nrc'S Request for Additional Information Regarding Relief Request 17-ON-001; Alternative to Extend the Code Case N-770, Inspection Item B, Examination Frequency2018-03-20020 March 2018 Response to Nrc'S Request for Additional Information Regarding Relief Request 17-ON-001; Alternative to Extend the Code Case N-770, Inspection Item B, Examination Frequency ONS-2018-017, Oconee, Units 1, 2, and 3, Submittal of Revised Evaluation to Emergency Plan2018-03-15015 March 2018 Oconee, Units 1, 2, and 3, Submittal of Revised Evaluation to Emergency Plan ONS-2018-021, ISFSI - Submittal of 2017 Annual Effluent Release Report2018-03-0101 March 2018 ISFSI - Submittal of 2017 Annual Effluent Release Report ONS-2018-020, Refuel 28 (O2R28) In-service Inspection (ISI) and Steam Generator In-service Inspection (SG-ISI) Report, Fifth 10-Year ISI Interval2018-02-26026 February 2018 Refuel 28 (O2R28) In-service Inspection (ISI) and Steam Generator In-service Inspection (SG-ISI) Report, Fifth 10-Year ISI Interval ONS-2018-013, Technical Specification Bases Changes2018-02-22022 February 2018 Technical Specification Bases Changes ONS-2018-015, Duke Energy Response to Request for Additional Information; Request for Alternative to Codes and Standards Requirements Pursuant to 10 CFR 50.55a(z) to Satisfy 10 CFR 50.55a(h)(2) Associated with Bronze Tape Wrapped Emergency Power Cabl2018-02-19019 February 2018 Duke Energy Response to Request for Additional Information; Request for Alternative to Codes and Standards Requirements Pursuant to 10 CFR 50.55a(z) to Satisfy 10 CFR 50.55a(h)(2) Associated with Bronze Tape Wrapped Emergency Power Cables i ONS-2018-014, License Amendment Request (LAR) for Changes to the Duke Energy Physical Security Plan - License Amendment Request No. 2018-012018-02-12012 February 2018 License Amendment Request (LAR) for Changes to the Duke Energy Physical Security Plan - License Amendment Request No. 2018-01 ONS-2018-019, Submittal of Emergency Plan, Section B2018-02-0505 February 2018 Submittal of Emergency Plan, Section B ONS-2018-011, Ufsar/Selected Licensee Commitment Changes2018-01-25025 January 2018 Ufsar/Selected Licensee Commitment Changes ONS-2017-087, Spent Fuel Pool Evaluation Supplemental Report, Response to NRC Request for Information Pursuant to 10 CFR 50.54(f) Regarding Recommendation 2.1 of the Near-Term Task Force Review of Insights from ...2017-12-0404 December 2017 Spent Fuel Pool Evaluation Supplemental Report, Response to NRC Request for Information Pursuant to 10 CFR 50.54(f) Regarding Recommendation 2.1 of the Near-Term Task Force Review of Insights from ... ONS-2017-083, Core Operating Limits Report (COLR) for Cycle 29 ONEl-0400-491, Revision 02017-11-21021 November 2017 Core Operating Limits Report (COLR) for Cycle 29 ONEl-0400-491, Revision 0 ONS-2017-041, Revision to Tornado/Helb Mitigation Strategies and Regulatory Commitments2017-11-15015 November 2017 Revision to Tornado/Helb Mitigation Strategies and Regulatory Commitments ONS-2017-085, Duke Energy Comments on the October 24, 2017, Public Meeting with NRC Committee to Review Generic Requirements (CRGR)2017-11-15015 November 2017 Duke Energy Comments on the October 24, 2017, Public Meeting with NRC Committee to Review Generic Requirements (CRGR) ONS-2017-079, Supplemental Information to Support NRC Review of Relief Request No. 17-0N-001; Alternative to Extend the Code Case N-770, Inspection Item B Examination Frequency2017-11-13013 November 2017 Supplemental Information to Support NRC Review of Relief Request No. 17-0N-001; Alternative to Extend the Code Case N-770, Inspection Item B Examination Frequency ONS-2017-078, Emergency Plan Revision 2017-0042017-11-0909 November 2017 Emergency Plan Revision 2017-004 ONS-2017-074, Proposed Amendment to the Renewed Facility Operating Licenses Regarding Revisions to the Updated Final Safety Analysis Report Section Associated with Tile Standby Shutdown Facility License Amendment Request No. 2017-032017-10-20020 October 2017 Proposed Amendment to the Renewed Facility Operating Licenses Regarding Revisions to the Updated Final Safety Analysis Report Section Associated with Tile Standby Shutdown Facility License Amendment Request No. 2017-03 ONS-2017-067, Response to Request for Additional Information Regarding License Amendment Request for TSTF-448, Revision 3, Control Room Habitability, License Amendment Request No. 2015-03, Supplement 22017-10-16016 October 2017 Response to Request for Additional Information Regarding License Amendment Request for TSTF-448, Revision 3, Control Room Habitability, License Amendment Request No. 2015-03, Supplement 2 ONS-2017-069, (ONS) - Additional Information Regarding License Amendment Request for Temporary Completion Time for One Keowee Hydro Unit Inoperable for Generator Stator Replacement2017-10-13013 October 2017 (ONS) - Additional Information Regarding License Amendment Request for Temporary Completion Time for One Keowee Hydro Unit Inoperable for Generator Stator Replacement ONS-2017-070, Transmittal of Oconee, Units 1, 2, and 3, Emergency Plan Implementing Procedures Manual Volume 2, Revision 2017-0022017-10-0505 October 2017 Transmittal of Oconee, Units 1, 2, and 3, Emergency Plan Implementing Procedures Manual Volume 2, Revision 2017-002 ONS-2017-072, Fifth Ten Year Lnservice Inspection Interval, Relief Request No. 17-0N-001; Alternative to Extend the Code Case N-770, Inspection Item B Examination Frequency2017-10-0303 October 2017 Fifth Ten Year Lnservice Inspection Interval, Relief Request No. 17-0N-001; Alternative to Extend the Code Case N-770, Inspection Item B Examination Frequency ONS-2017-066, Registration for Use of General License Spent Fuel Cask Numbers 147 and 1482017-09-20020 September 2017 Registration for Use of General License Spent Fuel Cask Numbers 147 and 148 ONS-2017-061, Revised Response to NRC Regulatory Issue Summary 2017-03, Preparation and Scheduling of Operator License Examinations2017-08-10010 August 2017 Revised Response to NRC Regulatory Issue Summary 2017-03, Preparation and Scheduling of Operator License Examinations ONS-2017-060, Registration for Use of General License Spent Fuel Cask Numbers 145 and 1462017-08-0303 August 2017 Registration for Use of General License Spent Fuel Cask Numbers 145 and 146 ONS-2017-059, Transmittal of Response to March 12, 2012 Request for Information, Recommendation 2.1 Flooding, Required Response 3, Flooding Focused Evaluation Summary2017-07-31031 July 2017 Transmittal of Response to March 12, 2012 Request for Information, Recommendation 2.1 Flooding, Required Response 3, Flooding Focused Evaluation Summary ONS-2017-050, Technical Specification Bases Change 2017-042017-07-21021 July 2017 Technical Specification Bases Change 2017-04 ONS-2017-052, Technical Specification Bases Change 2017-032017-07-20020 July 2017 Technical Specification Bases Change 2017-03 ONS-2017-043, Technical Specification Bases Change 2017-012017-07-20020 July 2017 Technical Specification Bases Change 2017-01 ONS-2017-047, Registration for Use of General License Spent Fuel Cask Numbers 142, 143, and 1442017-06-27027 June 2017 Registration for Use of General License Spent Fuel Cask Numbers 142, 143, and 144 ONS-2017-042, Additional Information Regarding License Amendment Request for Temporary Completion Time for One Keowee Hydro Unit Inoperable for Generator Stator Replacement, License Amendment Request No. 2015-08, Supplement 22017-06-0101 June 2017 Additional Information Regarding License Amendment Request for Temporary Completion Time for One Keowee Hydro Unit Inoperable for Generator Stator Replacement, License Amendment Request No. 2015-08, Supplement 2 ONS-2017-040, Transmittal of Emergency Plan Implementing Procedures Manual Volume 1, Revision 2017-0032017-05-22022 May 2017 Transmittal of Emergency Plan Implementing Procedures Manual Volume 1, Revision 2017-003 ONS-2017-037, 2016 Annual Radiological Environmental Operating Report2017-05-15015 May 2017 2016 Annual Radiological Environmental Operating Report ONS-2017-026, Submittal of Ufsar/Selected Licensee Commitment Change2017-04-11011 April 2017 Submittal of Ufsar/Selected Licensee Commitment Change ONS-2017-024, Revision 028 to ERTG-001, Emergency Response Organization and Emergency Services Training Program2017-03-16016 March 2017 Revision 028 to ERTG-001, Emergency Response Organization and Emergency Services Training Program ONS-2017-001, Submittal of Emergency Plan Program Procedure HP/O/B/1009/001 Rev 0452017-03-0202 March 2017 Submittal of Emergency Plan Program Procedure HP/O/B/1009/001 Rev 045 ONS-2017-017, Emergency Plan Implementing Procedures Manual Volume 1, Revision 2017-0012017-03-0202 March 2017 Emergency Plan Implementing Procedures Manual Volume 1, Revision 2017-001 ONS-2017-018, Emergency Plan Implementing Procedures Manual Volume 2, Revision 2017-0012017-03-0202 March 2017 Emergency Plan Implementing Procedures Manual Volume 2, Revision 2017-001 ONS-2017-015, End of Cycle 29 (1 EOC29) Refueling Outage Lnservice Inspection (ISI) and Steam Generator Lnservice Inspection (SG-ISI) Report, Fifth 10-Year ISI Interval2017-02-24024 February 2017 End of Cycle 29 (1 EOC29) Refueling Outage Lnservice Inspection (ISI) and Steam Generator Lnservice Inspection (SG-ISI) Report, Fifth 10-Year ISI Interval ONS-2017-019, Technical Specification Bases Change 2015-092017-02-23023 February 2017 Technical Specification Bases Change 2015-09 ONS-2017-011, Emergency Plan Revised Evaluation2017-02-0202 February 2017 Emergency Plan Revised Evaluation ONS-2017-009, Units 1, 2 & 3 - Notification of Compliance with Order EA-12-049, Order Modifying Licenses with Regard to Requirements for Mitigation Strategies for Beyond Design Basis External Events.2017-02-0101 February 2017 Units 1, 2 & 3 - Notification of Compliance with Order EA-12-049, Order Modifying Licenses with Regard to Requirements for Mitigation Strategies for Beyond Design Basis External Events. ONS-2017-004, Submittal of Core Operating Limits Report2017-01-12012 January 2017 Submittal of Core Operating Limits Report ONS-2017-006, Emergency Plan Revision 2016-0032017-01-12012 January 2017 Emergency Plan Revision 2016-003 ONS-2016-097, Emergency Plan/Emergency Plan Implementing Procedures Manual, Revised 10CFR 50.54(q) Evaluation(S)2016-11-17017 November 2016 Emergency Plan/Emergency Plan Implementing Procedures Manual, Revised 10CFR 50.54(q) Evaluation(S) ONS-2016-098, Special Report Per Technical Specification 5.6.6, Inoperability of Post Accident Monitoring Containment High Range Radiation Monitors2016-11-14014 November 2016 Special Report Per Technical Specification 5.6.6, Inoperability of Post Accident Monitoring Containment High Range Radiation Monitors ONS-2016-096, Revised Response to NRC Regulatory Issue Summary 2015-05, Preparation and Scheduling of Operator Licensing Examinations2016-11-10010 November 2016 Revised Response to NRC Regulatory Issue Summary 2015-05, Preparation and Scheduling of Operator Licensing Examinations 2018-05-15
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SCOTT L. BATSON Vice President DEN ERGY Oconee Nuclear Station Duke Energy ONOIVP/ 7800 Rochester Hwy Seneca, SC 29672 864-873-3274 864-8734208 fax ONS-2014-061 Scott.Batson@duke-energy.corn July 24, 2014 10 CFR 50.90 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk 11555 Rockville Pike Rockville, MD 20852-2746 Duke Energy Carolinas, LLC Oconee Nuclear Station (ONS), Units 1, 2, and 3 Docket Numbers 50-269, 50-270, and 50-287, Renewed Operating Licenses DPR-38, DPR-47, and DPR-55
Subject:
Licensing Basis for the Protected Service Water (PSW) System - Response to Requests for Additional Information Regarding PSW Cabling Aging Management Program and FANT Line Supply to PSW Degraded Voltage Protection; License Amendment Request (LAR) 2008 Supplement 11
Reference:
- 1. Letter from T. Preston Gillespie, Jr., Vice President, Oconee Nuclear Station, Duke Energy Carolinas, LLC, to the U. S. Nuclear Regulatory Commission, "Licensing Basis for the Protected Service Water System - Responses to Request for Additional Information"; License Amendment Request (LAR) 2008-07 dated July 11, 2012.
- 2. NRC RAI email from Randy Hall (NRC) to Timothy D. Brown (Duke Energy) dated June 24, 2014.
On June 24, 2014 (Reference 2), additional follow-up questions were received from the NRC pertaining to the cabling aging management program (AMP) for all Protected Service Water (PSW)
System cables in duct banks, trenches, and manholes. Conference calls were held on June 26, 2014 and July 10, 2014 to gain understanding and clarification regarding the additional information requests. The RAI has been numbered sequentially, based on the last RAI that was previously submitted.
The NRC has had concerns with aging management of the PSW System cables located in duct banks, trenches, and manholes. To address this, the NRC suggested a license condition to include the PSW cables in an enhanced monitoring regimen per NUREG 1801, "Generic Aging Lessons Learned (GALL) Report", revision 2 and Regulatory Guide 1.218, "Condition Monitoring Techniques for Electric Cables Used in Nuclear Power Plants", April 2012. The response to this RAI is provided in the Enclosure. In addition, in lieu of a license condition, the UFSAR section 18.3.14 is
U. S. Nuclear Regulatory Commission July 24, 2014 Page 2 being revised to include specific inspections for the underground portions of the PSW 13.8 kV AC cables. The UFSAR revision is provided in Attachment 1.
If you have any questions in regard to this letter, please contact Timothy D. Brown, PSW Licensing Manager at (864) 873-3952.
I declare under penalty of perjury that the foregoing is true and correct. Executed on July 24, 2014.
Sincerely, Scott L. Batson Vice President Oconee Nuclear Station Enclosure Attachment 1: UFSAR Section 18.3.14.
U. S. Nuclear Regulatory Commission July 24, 2014 Page 3 cc: (w/enclosure/attachment)
Mr. James R. Hall, Project Manager (by electronic mail only)
U. S. Nuclear Regulatory Commission Office of Nuclear Reactor Regulation 11555 Rockville Pike Rockville, MD 20852 Mr. Victor M. McCree, Administrator, Region II U.S. Nuclear Regulatory Commission Marquis One Tower 245 Peachtree Center Ave., NE, Suite 1200 Atlanta, GA 30303-1257 Mr. Eddy Crowe NRC Senior Resident Inspector Oconee Nuclear Station Ms. Susan E. Jenkins, Manager Radioactive & Infectious Waste Management SC Dept. of Health and Environmental Control 2600 Bull St.
Columbia, SC 29201
ENCLOSURE Request for Additional Information Protected Service Water Cabling Aging Management Program
ENCLOSURE: Request for Additional Information, PSW Cabling AMP July 24, 2014 Page 1 ENCLOSURE Requests for Additional Information Protected Service Water Cabling Aging Management Program On June 24, 2014 (Reference 2), additional follow-up questions were received from the NRC pertaining to the cabling aging management program (AMP) for all Protected Service Water (PSW) System cables in duct banks, trenches, and manholes. Conference calls were held on June 26, 2014 and July 10, 2014 to gain understanding and clarification regarding the requests for additional information (RAI).
RAI 195 The NRC suggested an additional license condition to address their aging management concerns regarding the PSW System cables located in duct banks, trenches, and manholes.
The suggested license condition is as follows:
The licensee should consider implementing an aging management program in accordance with GALL AMP Xl. E3, Revision 2 and Regulatory Guide 1.218, "Condition Monitoring Techniques for Electric Cables Used in Nuclear Power Plants" for all PSW system cables in duct banks, trenches, and manholes, prior to declaring the PSW system operable."
Duke Energy Response:
The NRC suggested a proposed license condition to include the PSW cables in an enhanced monitoring program per NUREG 1801, "Generic Aging Lessons Learned (GALL) Report",
Revision 2 and Regulatory Guide 1.218, "Condition Monitoring Techniques for Electric Cables Used in Nuclear Power Plants", April 2012. Oconee Nuclear Station (ONS) has implemented a Cabling Aging Management Program (AMP) per License Renewal Commitments as defined in NUREG 1723, "License Renewal Safety Evaluation Report", dated March, 2000. The ONS License Renewal SE was issued prior to the GALL report; therefore, ONS has no commitments pertaining to GALL, Revision 2. However, in an effort to prepare for the License Renewal Inspection, ONS performed a gap analysis against GALL, Revision 2, specifically Section XI.E3.
The gap analysis was documented in the ONS corrective action program and appropriate actions were taken to address each concern where a gap was identified.
For PSW specifically, Duke Energy is proposing to revise the Cabling AMP in the Updated Final Safety Analysis Report (UFSAR) to address the NRCs aging management concerns. The accessible PSW 13.8 kV cable will be added to the lists of insulated cables and connections that are inspected every ten years. The PSW drainage system of the trenches and manholes that contain the PSW 13.8 KV cables shall be inspected annually to detect and manage exposure of these cables to significant moisture. The inaccessible 13.8 kV cables from the Keowee Hydroelectric Station to the PSW Building and from the PSW substation to the PSW Building (FANT line) shall be electrically tested prior to declaring the entire PSW system operable and every 6 years thereafter using techniques provided in RG 1.218.
ENCLOSURE: Request for Additional Information, PSW Cabling AMP July 24, 2014 Page 2 Revising UFSAR section 18.3.14 to include these cables provides a similar level of commitment as adding a new License Condition to the Facility Operating License. Incorporating the 13.8 KV AC PSW cables aging management inspections and testing into the Cabling AMP allows Duke Energy to manage these commitments as they do all other License Renewal commitments.
The revised page of UFSAR section 18.3.14 is provided in Attachment 1.
1 ATTACHMENT page 18.3.14 revised UFSAR Section
Oconee Nuclear Station UFSAR Chapter 18 Industry Codes and Standards - EPRI TR-109619, Guideline for the Management of Adverse Localized Equipment Environments will be used as guidance in implementing this program.
Frequency - Accessible insulated cables and connections including Protected Service Water (PSW) 13.8 kV cables installed in adverse, localized environments will be inspected at least once every 10 years. Water collection in manholes containing in-scope, medium-voltage cables will be monitored at a frequency adequate to prevent the cables from being exposed to significant moisture. The PSW drainage system of the trenches and manholes containing the PSW 13.8 kV cables shall be inspected annually to detect exposure of these cables to significant moisture. The periodic inspections shall include video imaging of the drainage systems of the trench and manholes. If significant moisture is detected, actions shall be taken to correct this condition.
Inaccessible or direct-buried, medium-voltage cables exposed to significant moisture and significant voltage will be tested at least once every 10 years. The PSW system inaccessible 13.8 kV insulated power cables from the Keowee Hydroelectric station to the PSW building and from the PSW substation to the PSW building (Fant Line) shall be periodically electrically tested. The initial PSW 13.8 kV cable testing shall be performed prior to declaring the entire PSW system operable and thereafter at a 6 year frequency. The electrical tests shall follow the cable condition monitoring methods and testing techniques provided in Regulatory Guide 1.218 (April 2012).
Acceptance Criteria or Standard - The acceptance criteria is different for accessible insulated cables and connections and for inaccessible or direct-buried medium-voltage cables.
For accessible insulated cables and connections installed in adverse, localized environments, the acceptance criteria is no unacceptable, visual indications of jacket surface anomalies, which suggest that conductor insulation applicable aging effect may exist, as determined by engineering evaluation. An unacceptable indication is defined as a noted condition or situation that, if left unmanaged, could lead to a loss of the license renewal intended function. In-scope, medium-voltage cables in manholes found to be exposed to significant moisture will be tested as described for inaccessible cables under Method, Frequency and Acceptance Criteria of this program.
For inaccessible or direct-buried, medium-voltage cables exposed to significant moisture and significant voltage, the acceptance criteria for the test will be defined by the specific type of test to be performed and the specific cable to be tested.
Corrective Action - Further investigation by engineering will be performed on accessible and inaccessible insulated cables and connections when the acceptance criteria is not met in order to ensure that the license renewal intended functions will be maintained consistent with the current licensing basis. Corrective actions may include, but are not limited to, testing, shielding or otherwise changing the environment, relocating or replacement. Specific corrective actions will be implemented in accordance with the Problem Investigation Process. The Problem Investigation Process applies to all structures and components within the scope of the Insulated Cables and Connections Aging Management Program. When an unacceptable condition or situation is identified, a determination will be made as to whether this same condition or situation could be applicable to other accessible or inaccessible cables and connections.
Timing of New Program or Activity - Following issuance of a renewed operating licenses for Oconee Nuclear Station, the initial inspections and tests will be completed by February 6, 2013 (the end of the initial license term for Oconee Unit 1).
Regulatory Basis - Duke response to SER Open Item 3.9.3 [Reference 24] and Final SER [Reference 2].
(Date) 18.3 - 13