ML13235A131: Difference between revisions
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| number = ML13235A131 | | number = ML13235A131 | ||
| issue date = 09/04/2013 | | issue date = 09/04/2013 | ||
| title = Summary of July 30, 2013, Pre-Application Teleconference with Duke Energy Carolinas, LLC to Discuss Proposed Risk-Informed In-Service Inspection, 4th Interval Relief Request | | title = Summary of July 30, 2013, Pre-Application Teleconference with Duke Energy Carolinas, LLC to Discuss Proposed Risk-Informed In-Service Inspection, 4th Interval Relief Request | ||
| author name = Paige J | | author name = Paige J | ||
| author affiliation = NRC/NRR/DORL/LPLII-1 | | author affiliation = NRC/NRR/DORL/LPLII-1 | ||
| Line 18: | Line 18: | ||
=Text= | =Text= | ||
{{#Wiki_filter:\,~",!I REGuz., | {{#Wiki_filter:\\,~",!I REGuz., | ||
UNITED STATES | |||
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0 NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 Iii | |||
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September 4, 2013 LICENSEE: | |||
Duke Energy Carolinas, LLC FACILITY: | |||
McGuire Nuclear Station, Units 1 and 2 | |||
==SUBJECT:== | ==SUBJECT:== | ||
==SUMMARY== | ==SUMMARY== | ||
OF JULY 30, 2013, PRE-APPLICATION TELECONFERENCE WITH DUKE ENERGY CAROLINAS, LLC TO DISCUSS PROPOSED RISK INFORMED IN-SERVICE INSPECTION, 4th INTERVAL RELIEF REQUEST (TAC NOS. MF2458 AND MF2459) | OF JULY 30, 2013, PRE-APPLICATION TELECONFERENCE WITH DUKE ENERGY CAROLINAS, LLC TO DISCUSS PROPOSED RISK INFORMED IN-SERVICE INSPECTION, 4th INTERVAL RELIEF REQUEST (TAC NOS. MF2458 AND MF2459) | ||
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DISCUSSION The proposed action is a risk-informed in-service inspection (lSI), 4th interval, relief request using code case N-716 for all Class 1 and Class 2 piping welds. The licensee would use the risk-informed/safety based (RIS_B) in-service inspection process in lieu of the traditional Section XI requirements. The licensee stated that the basis for this request is to focus on inspections on the most safety-significant welds, so that the number of inspections can be reduced while maintaining protection of public health and safety. The focus on the most safety significant welds would achieve dose saving for the site. The licensee's proposed submittal would be based, in large part, on NRC approved EPRI TR 112657 Rev. B-A. The staff indicated that the licensee should consider if its proposed submittal have any deviations from the approved EPRI methodology and if there are any deviations, that it should be clearly explained in the application. | DISCUSSION The proposed action is a risk-informed in-service inspection (lSI), 4th interval, relief request using code case N-716 for all Class 1 and Class 2 piping welds. The licensee would use the risk-informed/safety based (RIS_B) in-service inspection process in lieu of the traditional Section XI requirements. The licensee stated that the basis for this request is to focus on inspections on the most safety-significant welds, so that the number of inspections can be reduced while maintaining protection of public health and safety. The focus on the most safety significant welds would achieve dose saving for the site. The licensee's proposed submittal would be based, in large part, on NRC approved EPRI TR 112657 Rev. B-A. The staff indicated that the licensee should consider if its proposed submittal have any deviations from the approved EPRI methodology and if there are any deviations, that it should be clearly explained in the application. | ||
The licensee presented on the RIS-ISI process and its selection process for welds. The relief request would replace detailed evaluation of each piping segment's safety significance with a generic population of high safety significant segments based on exhaustive risk informed lSI experience to date. The licensee stated that the process entails a safety significance determination, failure potential assessment, element and NDE selection, risk impact assessment, implementation, and feedback (monitoring). The staff inquired on the licensee's selection of elements and if they consider how much coverage is available to exam when determining which welds to inspect. | The licensee presented on the RIS-ISI process and its selection process for welds. The relief request would replace detailed evaluation of each piping segment's safety significance with a generic population of high safety significant segments based on exhaustive risk informed lSI experience to date. The licensee stated that the process entails a safety significance determination, failure potential assessment, element and NDE selection, risk impact assessment, implementation, and feedback (monitoring). The staff inquired on the licensee's selection of elements and if they consider how much coverage is available to exam when determining which welds to inspect. | ||
No members of the public were in attendance, and no feedback forms were received. No commitments or regulatory decisions were made by the NRC staff during the meeting. | No members of the public were in attendance, and no feedback forms were received. No commitments or regulatory decisions were made by the NRC staff during the meeting. | ||
- 2 Please direct any inquiries to me at 301-415-5888, or Jason.paige@nrc.gov. | |||
on C. Paige, Project Manager lant Licensing Branch 11-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-369 and 50-370 | on C. Paige, Project Manager lant Licensing Branch 11-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-369 and 50-370 | ||
==Enclosure:== | ==Enclosure:== | ||
: 1. List of Attendees cc w/encls: Distribution via Listserv | : 1. List of Attendees cc w/encls: Distribution via Listserv | ||
LIST OF ATTENDEES JULY 30, 2013. MEETING WITH DUKE ENERGY CAROLINAS, LLC REGARDING PROPOSED RISK-INFORMED RELIEF REQUEST U.S. NUCLEAR REGULATORY COMMISSION Tim Lupoid Hossein Hamzehee Jason Paige DUKE ENERGY CAROLINAS, LLC Lee Kanipe Jeff Robertson PTVu Parker Downing Hoang Dinh Scott Chesworth SCOTT CHESWORTH Jim Moody Enclosure | LIST OF ATTENDEES JULY 30, 2013. MEETING WITH DUKE ENERGY CAROLINAS, LLC REGARDING PROPOSED RISK-INFORMED RELIEF REQUEST U.S. NUCLEAR REGULATORY COMMISSION Tim Lupoid Hossein Hamzehee Jason Paige DUKE ENERGY CAROLINAS, LLC Lee Kanipe Jeff Robertson PTVu Parker Downing Hoang Dinh Scott Chesworth SCOTT CHESWORTH Jim Moody Enclosure | ||
Meeting Notice ML13198A173 | Meeting Notice ML13198A173 Meeting Summary ML13235A131 Handouts ML13210A300 ac aQe M 13235 125 P k L | ||
A OFFICE NRR/DORULPL2-1/PM NRR/DORULPL2-1/LA NRR/DORULPL2-1/BC NRR/DORULPL2-1/PM NAME JPaige SFigueroa BPascarelli JPaige DATE 09/3/13 08/28/13 09/4113 | |||
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Latest revision as of 05:55, 11 January 2025
| ML13235A131 | |
| Person / Time | |
|---|---|
| Site: | McGuire, Mcguire  |
| Issue date: | 09/04/2013 |
| From: | Jason Paige Plant Licensing Branch II |
| To: | Duke Energy Carolinas |
| Paige Jason, NRR/DORL 415-5888 | |
| References | |
| TAC MF2458, TAC MF2459 | |
| Download: ML13235A131 (4) | |
Text
\\,~",!I REGuz.,
UNITED STATES
~~v Ii!
)-0'1'
~
0 NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 Iii
~
~
~~
~~
September 4, 2013 LICENSEE:
Duke Energy Carolinas, LLC FACILITY:
McGuire Nuclear Station, Units 1 and 2
SUBJECT:
SUMMARY
OF JULY 30, 2013, PRE-APPLICATION TELECONFERENCE WITH DUKE ENERGY CAROLINAS, LLC TO DISCUSS PROPOSED RISK INFORMED IN-SERVICE INSPECTION, 4th INTERVAL RELIEF REQUEST (TAC NOS. MF2458 AND MF2459)
On July 30, 2013, a Category 1 public pre-application teleconference was held between the U.S. Nuclear Regulatory Commission (NRC) and representatives of Duke Energy Carolinas, LLC (Duke, the licensee) at NRC Headquarters, One White Flint North, 11555 Rockville Pike, Rockville, Maryland. The purpose of the meeting was to discuss Duke's proposed risk-informed in-service inspection, 4th interval, relief request. The meeting notice and agenda, dated July 17, 2013, is available in the Agencywide Documents Access and Management System (ADAMS) at Accession No. ML13198A173. The licensee's slides are available in ADAMS at Accession No. ML1321 OA300. A list of attendees is provided as Enclosure 1.
DISCUSSION The proposed action is a risk-informed in-service inspection (lSI), 4th interval, relief request using code case N-716 for all Class 1 and Class 2 piping welds. The licensee would use the risk-informed/safety based (RIS_B) in-service inspection process in lieu of the traditional Section XI requirements. The licensee stated that the basis for this request is to focus on inspections on the most safety-significant welds, so that the number of inspections can be reduced while maintaining protection of public health and safety. The focus on the most safety significant welds would achieve dose saving for the site. The licensee's proposed submittal would be based, in large part, on NRC approved EPRI TR 112657 Rev. B-A. The staff indicated that the licensee should consider if its proposed submittal have any deviations from the approved EPRI methodology and if there are any deviations, that it should be clearly explained in the application.
The licensee presented on the RIS-ISI process and its selection process for welds. The relief request would replace detailed evaluation of each piping segment's safety significance with a generic population of high safety significant segments based on exhaustive risk informed lSI experience to date. The licensee stated that the process entails a safety significance determination, failure potential assessment, element and NDE selection, risk impact assessment, implementation, and feedback (monitoring). The staff inquired on the licensee's selection of elements and if they consider how much coverage is available to exam when determining which welds to inspect.
No members of the public were in attendance, and no feedback forms were received. No commitments or regulatory decisions were made by the NRC staff during the meeting.
- 2 Please direct any inquiries to me at 301-415-5888, or Jason.paige@nrc.gov.
on C. Paige, Project Manager lant Licensing Branch 11-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-369 and 50-370
Enclosure:
- 1. List of Attendees cc w/encls: Distribution via Listserv
LIST OF ATTENDEES JULY 30, 2013. MEETING WITH DUKE ENERGY CAROLINAS, LLC REGARDING PROPOSED RISK-INFORMED RELIEF REQUEST U.S. NUCLEAR REGULATORY COMMISSION Tim Lupoid Hossein Hamzehee Jason Paige DUKE ENERGY CAROLINAS, LLC Lee Kanipe Jeff Robertson PTVu Parker Downing Hoang Dinh Scott Chesworth SCOTT CHESWORTH Jim Moody Enclosure
Meeting Notice ML13198A173 Meeting Summary ML13235A131 Handouts ML13210A300 ac aQe M 13235 125 P k L
A OFFICE NRR/DORULPL2-1/PM NRR/DORULPL2-1/LA NRR/DORULPL2-1/BC NRR/DORULPL2-1/PM NAME JPaige SFigueroa BPascarelli JPaige DATE 09/3/13 08/28/13 09/4113
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