ML15112A667
| ML15112A667 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 07/16/1998 |
| From: | Labarge D NRC (Affiliation Not Assigned) |
| To: | Mccollum W DUKE POWER CO. |
| References | |
| TAC-MA1766, TAC-MA1767, TAC-MA1768, NUDOCS 9807240190 | |
| Download: ML15112A667 (4) | |
Text
S Mr. William R. McCollum y 16, 1998 Vice President, Oconee Site Duke Energy Corporation P. 0. Box 1439 Seneca, SC 29679
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION - RELIEF REQUEST FOR USE OF AN ALTERNATIVE TO THE ASME CODE REQUIREMENTS FOR TENDON INSPECTION FOR OCONEE NUCLEAR STATION, UNITS 1, 2, AND 3 (TAC NOS. MA1766, MA1767, AND MA1768) (SERIAL NO. 98-ONS-0002)
Dear Mr. McCollum:
By letter dated May 6, 1998, Duke Energy Corporation (Duke) requested the use of an alternative to the requirements of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code (ASME CODE) for Oconee Nuclear Station Units 1, 2, and 3. The request would allow the use of an alternative to the examination requirements for post tensioning systems of concrete containments (Class CC components), as specified in the ASME Code,Section XI, 1992 Edition with the 1992 Addenda, Subsection IWL-2421 and IWL-2521, Table-2521-1.
In order to process this relief request, the staff has determined that additional information is need, as detailed in the enclosure. To expedite the review process, please send a copy of your response to the NRC's contractor at:
Michael T. Anderson INEEL Research Center 2151 North Boulevard P.O. Box 1625 Idaho Falls, Idaho 83415-2209 Sincerely, original signed by:
David E. LaBarge, Senior Project Manager Project Directorate 11-2 Division of Reactor Projects - 1/11 Office of Nuclear Reactor Regulation Docket Nos. 50-269, 50-270, DISTRIBUTION and 50-287 Docket File L.PliscoRII J.Zwolinski PUBLIC C.OgleRII
Enclosure:
Request for Additional PDII-2 RF ACRS Information OGC A.Ashar cc w/encl: See next page NAME D.LaBARGE:PN/P 11-2 L.BERRY:LA/PDII-2 I
i i-R : 61Pd 1-2 DATE
/7
/
/19 8/
98 COPY ES NO YES NO YES NO Document Nam: G:\\OCONEE\\OCO t766.RAI OFFICIAL RECORD COPY 9807240190 980716 PDR ADOCK 05000269 P
UNITED STATES NUCLEAR REGULATORY COMMISSION X
WASHINGTON, D.C. 20555-0001 July 16, 1998 Mr. William R. McCollum Vice President, Oconee Site Duke Energy Corporation P. 0. Box 1439 Seneca, SC 29679
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION - RELIEF REQUEST FOR USE OF AN ALTERNATIVE TO THE ASME CODE REQUIREMENTS FOR TENDON INSPECTION FOR OCONEE NUCLEAR STATION, UNITS 1, 2, AND 3 (TAC NOS. MA1766, MA1767, AND MA1768) (SERIAL NO. 98-ONS-0002)
Dear Mr. McCollum:
By letter dated May 6, 1998, Duke Energy Corporation (Duke) requested the use of an alternative to the requirements of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code (ASME CODE) for Oconee Nuclear Station Units 1, 2, and 3. The request would allow the use of an alternative to the examination requirements for post tensioning systems of concrete containments (Class CC components), as specified in the ASME Code,Section XI, 1992 Edition with the 1992 Addenda, Subsection IWL-2421 and IWL-2521, Table-2521-1.
In order to process this relief request, the staff has determined that additional information is need, as detailed in the enclosure. To expedite the review process, please send a copy of your response to the NRC's contractor at:
Michael T. Anderson INEEL Research Center 2151 North Boulevard P.O. Box 1625 Idaho Falls, Idaho 83415-2209 Sincerely, David E. LaBarge, Senior Project Manager Project Directorate 11-2 Division of Reactor Projects - 1/II Office of Nuclear Reactor Regulation Docket Nos. 50-269, 50-270, and 50-287
Enclosure:
Request for Additional Information cc w/encl: See next page
REQUEST FOR ADDITIONAL INFORMATION OCONEE NUCLEAR STATION, UNITS 1. 2. AND 3
Reference:
Letter from W. McCollum (Duke Energy Corporation) to NRC, "Request to Use an Alternative to the Requirements of the ASME Boiler & Pressure Vessel Code, Section Xi in Accordance with 10 CFR 50.55a(a)(3)(i), Serial No. 98-ONS-0002,"
dated May 6, 1998.
In Request No. 98-ONS-0002, Duke Energy Corporation (the licensee) has proposed an alternative to the extent and frequency requirements of IWL-2420 and IWL-2520 for post tensioning systems of Class CC components for its three prestressed concrete containments at the Oconee Nuclear Station, Units 1, 2, and 3. The Code does not explicitlyaddress the circumstances encountered at the Oconee Nuclear Station where three similar units exist on one site.
Based on the review of the relief request, the staff has concluded that the following information and/or clarification is needed.
IWL-3222, Acceptance by Evaluation, states that items with examination results that do not meet the acceptance standards of IWL-3221 shall be evaluated as required by IWL-3300, Evaluation. IWL-3310 requires that the Owner prepare an Engineering Evaluation Report if the examination results do not meet the acceptance standards of IWL-3200. In addition to other report requirements, subparagraph (d) requires that the Owner state the "extent, nature, and frequency of additional examinations."
In context of the proposed alternative, provide information regarding the extent, nature, and frequency of additional examinations that will be performed if nonconforming conditions for unbonded post-tensioning systems are found at any of the three Oconee units.
Enclosure
Oconee Nuclear Station cc:
Mr. Paul R. Newton Mr. J. E. Burchfield Legal Department (PBO5E)
Compliance Manager Duke Energy Corporation Duke Energy Corporation 422 South Church Street Oconee Nuclear Site Charlotte, North Carolina 28242 P. 0.. Box 1439 Seneca, South Carolina 29679 J. Michael McGarry, Ill, Esquire Winston and Strawn Ms. Karen E. Long 1400 L Street, NW.
Assistant Attorney General Washington, DC 20005 North Carolina Department of Justice Mr. Robert B. Borsum P. 0. Box 629 Framatome Technologies Raleigh, North Carolina 27602 Suite 525 1700 Rockville Pike L. A. Keller Rockville, Maryland 20852-1631 Manager - Nuclear Regulatory Licensing Manager, LIS Duke Energy Corporation NUS Corporation 526 South Church Street 2650 McCormick Drive, 3rd Floor Charlotte, North Carolina 28242-0001 Clearwater, Florida 34619-1035 Mr. Richard M. Fry, Director Senior Resident Inspector Division of Radiation Protection U. S. Nuclear Regulatory North Carolina Department of Commission Environment, Health, and 7812B Rochester Highway Natural Resources Seneca, South Carolina 29672 3825 Barrett Drive Raleigh, North Carolina 27609-7721 Regional Administrator, Region II U. S. Nuclear Regulatory Commission Atlanta Federal Center 61 Forsyth Street, S.W., Suite 23T85 Atlanta, Georgia 30303 Max Batavia, Chief Bureau of Radiological Health South Carolina Department of Health and Environmental Control 2600 Bull Street Columbia, South Carolina 29201 County Supervisor of Oconee County Walhalla, South Carolina 29621