ML15218A117
| ML15218A117 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 09/10/1992 |
| From: | Matthews D Office of Nuclear Reactor Regulation |
| To: | Hampton J DUKE POWER CO. |
| Shared Package | |
| ML15218A118 | List: |
| References | |
| TAC-M84083, NUDOCS 9209210289 | |
| Download: ML15218A117 (3) | |
Text
September 10, 1992 Docket No. 50-287 Mr. J. W. Hampton Vice President, Oconee Site Duke Power Company P. 0. Box 1439 Seneca, South Carolina 29697
Dear Mr. Hampton:
SUBJECT:
RELIEF REQUEST NO. 92 SAFETY EVALUATION, OCONEE NUCLEAR STATION 3 (TAC NO. M84083)
By letter dated July 14, 1992, you submitted Relief Request No. 92-11 from ASME Code requirements for hydrostatic testing of Weld 3-03A-15-32 on repaired Valve 3FDW-345 between the 3A Steam Generator and the Emergency Feedwater System.
The NRC staff has reviewed your relief request and your proposed alternative testing of the welds. Our evaluation is enclosed. We find that an additional hydrostatic test, beyond the requirements of the normal hydrostatic test cycle, is unusually difficult because of the considerable practical difficulties involved and the unnecessary stresses to which the steam generator system would be subjected. Your proposed alternative to hydrostatic testing (100% radiography and VT-2 inspection of the welds at normal operating temperature and pressure) would provide assurance of the integrity of the welds and their ability to remain leak-tight at normal operating conditions.
Therefore, your proposed alternative is acceptable.
Therefore, pursuant to 10 CFR 50.55a(a)(3)(ii), your proposed alternative to hydrostatic testing is authorized. The NRC staff has determined that the proposed alternative testing provides an acceptable level of quality and safety and that compliance with the code would result in an undue burden without a compensatory increase in the level of quality of safety.
Sincerely, original si gned by Leonard A. Wiens David B. Matthews, Director Project Directorate 11-3 Division of Reactor Projects -
I/II Office of Nuclear Reactor Regulation
Enclosure:
DISTRIBUTION:
As stated SEE NEXT PAGE cc w/enclosure:
DOCUMENT NAME:
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pkREGj UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 2065 September 10, 1992 Docket No. 50-287 Mr. J. W. Hampton Vice President, Oconee Site Duke Power Company P. 0. Box 1439 Seneca, South Carolina 29697
Dear Mr. Hampton:
SUBJECT:
RELIEF REQUEST NO. 92 SAFETY EVALUATION, OCONEE NUCLEAR STATION 3 (TAC NO. M84083)
By letter dated July 14, 1992, you submitted Relief Request No. 92-11 from ASME Code requirements for hydrostatic testing of Weld 3-03A-15-32 on repaired Valve 3FDW-345 between the 3A Steam Generator and the Emergency Feedwater System.
The NRC staff has reviewed your relief request and your proposed alternative testing of the welds. Our evaluation is enclosed. We find that an additional hydrostatic test, beyond the requirements of the normal hydrostatic test cycle, is unusually difficult because of the considerable practical difficulties involved and the unnecessary stresses to which the steam generator system would be subjected. Your proposed alternative to hydrostatic testing (100% radiography and VT-2 inspection of the welds at normal operating temperature and pressure) would provide assurance of the integrity of the welds and their ability to remain leak-tight at normal operating conditions.
Therefore, your proposed alternative is acceptable.
Therefore, pursuant to 10 CFR 50.55a(a)(3)(ii), your proposed alternative to hydrostatic testing is authorized. The NRC staff has determined that the proposed alternative testing provides an acceptable level of quality and safety and that compliance with the code would result in an undue burden without a compensatory increase in the level of quality of safety.
Sincerely, David B. Matthews, Dircor Project Directorate 11-3 Division of Reactor Projects -
I/II Office of Nuclear Reactor Regulation
Enclosure:
As stated cc w/enclosure:
See next page
Mr. J. W. Hampton Duke Power Company Oconee Nuclear Station cc:
Mr. A. V. Carr, Esquire Mr. M. E. Patrick 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. Alan R. Herdt, 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. R. L. Gill, Jr.
Licensing Senior Resident Inspector Duke Power Company U. S. Nuclear Regulatory Commission P. 0. Box 1007 Route 2, Box 610 Charlotte, North Carolina 28201-1007 Seneca, South Carolina 29678 Regional Administrator, Region II U. S. Nuclear Regulatory Commission 101 Marietta Street, NW. Suite 2900 Atlanta, Georgia 30323 Mr. Heyward G. Shealy, Chief Bureau of Radiological Health South Carolina Department of Health and Environmental Control 2600 Bull Street Columbia, South Carolina 29201 Office of Intergovernmental Relations 116 West Jones Street Raleigh, North Carolina 27603 County Supervisor of Oconee County Walhalla, South Carolina 29621