ML16161A223
| ML16161A223 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 08/30/1994 |
| From: | Wiens L Office of Nuclear Reactor Regulation |
| To: | Hampton J DUKE POWER CO. |
| References | |
| NUDOCS 9409070220 | |
| Download: ML16161A223 (3) | |
Text
Mr. J. W. Hampton August 30, 1994 Vice President, Ocone* ite Duke Power Company P. 0. Box 1439 Seneca, SC 29679
SUBJECT:
FATIGUE ANALYSES FOR REACTOR COOLANT PRESSURE BOUNDARY ATTACHMENT PIPING
Dear Mr. Hampton:
During an information gathering visit to Oconee on March 8 & 9, 1994, the NRC staff identified an apparent noncompliance with a licensing basis requirement.
Specifically, the reactor coolant pressure boundary piping, including the attachment piping to the first isolation valve, is required to be designed to ANSI B31.7, Class I standards as stated in the Final Safety Analysis Report.
It was identified by the staff that this attachment piping to the reactor coolant loops was only designed to ANSI B31.7, Class II standards (i.e., USAS B31.1 Power Piping). As a result, no explicit fatigue analyses have ever been performed for this attachment piping which includes the piping from the low pressure injection and high pressure injection systems. This condition is applicable to all three units.
Please provide the results of your evaluation of this apparent noncompliance, including any corrective actions completed and the schedule for planned corrective actions, if any. If your evaluation determines that a non compliance does not exist or that fatigue analyses are not necessary for this piping, provide the relevant justification for this position. We ask that you provide the requested information within 30 days from the date of this letter.
If you have questions regarding this matter, contact me at (301) 504-1495.
This request affects fewer than ten respondents and, therefore, it is not subject to Office of Management and Budget review under P.L.96-511.
Sincerely,
/s/
L. A. Wiens, Project Manager 9409070220 9408-
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7 4UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 August 30, 1994 Mr. J. W. Hampton Vice President, Oconee Site Duke Power Company P. 0. Box 1439 Seneca, SC 29679
SUBJECT:
FATIGUE ANALYSES FOR REACTOR COOLANT PRESSURE BOUNDARY ATTACHMENT PIPING
Dear Mr. Hampton:
During an information gathering visit to Oconee on March 8 & 9, 1994, the NRC staff identified an apparent noncompliance with a licensing basis requirement.
Specifically, the reactor coolant pressure boundary piping, including the attachment piping to the first isolation valve, is required to be designed to ANSI B31.7, Class I standards as stated in the Final Safety Analysis Report.
It was identified by the staff that this attachment piping to the reactor coolant loops was only designed to ANSI B31.7, Class II standards (i.e., USAS B31.1 Power Piping). As a result, no explicit fatigue analyses have ever been performed for this attachment piping which includes the piping from the low pressure injection and high pressure injection systems. This condition is applicable to all three units.
Please provide the results of your evaluation of this apparent noncompliance, including any corrective actions completed and the schedule for planned corrective actions, if any. If your evaluation determines that a non compliance does not exist or that fatigue analyses are not necessary for this piping, provide the relevant justification for this position. We ask that you provide the requested information within 30 days from the date of this letter.
If you have questions regarding this matter, contact me at (301) 504-1495.
This request affects fewer than ten respondents and, therefore, it is not subject to Office of Management and Budget review under P.L.96-511.
Sincerely, L. A. Wiens, Project Manager Project Directorate 11-3 Division of Reactor Projects-I/II Office of Nuclear Reactor Regulation Docket Nos. 50-269, 50-270, and 50-287 cc w/encl: See next page
Mr. J. W. Hampton Duke Power Company Oconee Nuclear Station cc:
A. V. Carr, Esquire Mr. Steve Benesole Duke Power Company Compliance 422 South Church Street Duke Power Company Charlotte, North Carolina 28242-0001 Oconee Nuclear Site P. 0. Box 1439 J. Michael McGarry, III, Esquire Seneca, South Carolina 29679 Winston and Strawn 1400 L Street, NW.
Mr. Marvin Sinkule, Chief Washington, DC 20005 Project Branch #3 U. S. Nuclear Regulatory Commission Mr. Robert B. Borsum 101 Marietta Street, NW. Suite 2900 Babcock & Wilcox Atlanta, Georgia 30323 Nuclear Power Division Suite 525 Ms. Karen E. Long 1700 Rockville Pike Assistant Attorney General Rockville, Maryland 20852 North Carolina Department of Justice Manager, LIS P. 0. Box 629 NUS Corporation Raleigh, North Carolina 27602 2650 McCormick Drive, 3rd Floor Clearwater, Florida 34619-1035 Mr. G. A. Copp Licensing -
ECO50 Senior Resident Inspector Duke Power Company U. S. Nuclear Regulatory Commission 526 South Church Street Route 2, Box 610 Charlotte, North Carolina 28242-0001 Seneca, South Carolina 29678 Dayne H. Brown, Director Regional Administrator, Region II Division of Radiation Protection U. S. Nuclear Regulatory Commission North Carolina Department of 101 Marietta Street, NW. Suite 2900 Environment, Health and Atlanta, Georgia 30323 Natural Resources P. 0. Box 27687 Max Batavia, Chief Raleigh, North Carolina 27611-7687 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