ML20128E941
| ML20128E941 | |
| Person / Time | |
|---|---|
| Site: | Beaver Valley |
| Issue date: | 02/08/1993 |
| From: | Butler W Office of Nuclear Reactor Regulation |
| To: | Sieber J DUQUESNE LIGHT CO. |
| References | |
| TAC-M84983, NUDOCS 9302110159 | |
| Download: ML20128E941 (4) | |
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UNITED STATES l'
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Docket No. S0-334 Mr. J. D. Sieber, Senior Vice President and Chief Nuclear Officer Nuclear Power Division Duquesne Light Company Post Office Box 4 Shippingport, Pennsylvania 15077-0004
Dear Mr. Sieber:
SUBJECT:
BEAVER VALLEY POWER STATION, UNIT 1 - INSERVICE TESTING OF CHECK VALVES (TAC NO. H84983)
The purpose of this letter is to grant the approval of check valve testing methodology requested in your letter dated November 12, 1992.
In that letter Duquesne Light Company (DLC) requested interim approva1 of test methodology for the safety injection accumulator discharge eneck valves for the Beaver Valley Power Station, Unit 1 ninth refueling outage.
In a letter dated January 24, 1992, the NRC issued a Safety Evaluation (SE) for the inservice testing (IST) of the safety injection (SI) accumulator discharge check valves stipulating that DLC revise the test mothed to meet either Position 1 or Position 2 of Generic Letter 89-04, Guidance on Developing Acceptable Inservice Testing Programs, for verifying the fu11-stroke opening function of these valves.
In DLC's letter of November 12, 1992, the revised test method was provided.
DLC indicated that the SI accumulator discharge check valves will be tested using the method developed by Omaha Public Power District for the Fort Calhoun Station.
The test method is described in NUREG/CP-0123, Proceedinos of the Second NRCIASME Symoosium on__P.ypp and Valve Testina, in a paper entitled
" Alternative Method for full flow Stroke Testin Check Valves at Fort Calhoun Nuclear Station," g of Safety Injection Tank by C. N. Bloyd.
In a letter dated May 5,1992, to Omaha Public Power District (OPPD), the NRC issued an SE for the Fort Calhoun Station IST Program relief requests.
In Section 2.1.7 of the May 1992 Fort Calhoun SE, Valve Relief Request E19 for-the safety injection tank discharge check valves was evaluated.
The staff advised OPPD that the method was acceptable for implementation. However, the staff further determined that because the method of exercising these valves depends upon a combination of test and analyses, an indepth review of the methodology would be performed.
The staff indicated to OPPD that the more detailed evaluation of the exercising methodology by NRC may result in a future change in the staff's position with regard to this test method. Currently, the staff is contracting Oak Ridge National Laboratory to perform such an evaluation of the Fort Calhoun test methodology.
W)y 9302110159 930208 DR ADOCK 0500 4
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Mr. J. D. Sieber February 8, 1993 If the testing is determined to be acceptable for a full-stroke exercise of the safety injection tank discharge check valves, the method is acceptable in accordance with the Code requirements and the guidance of Position 1 of GL 89-04. Based on the information presented by Fort Calhoun, the test methodology appears to meet these requirements and guidance. The staff considers the detailed evaluation a verification of the testing and a means of determining if any changes to the test procedures or assumstions are required for compliance.
Until the final evaluation is complete, tie method is considered acceptable.
Therefore, DLC may utilize essentially the same method in the upcoming Beaver Valley Unit I refueling outage.
When the final evaluation of the testing performed at Fort Calhoun Station is com)1ete, NRC will provide a copy to DLC and will inform DLC if any changes in tie testing, such as the use of nonintrusive techniques, are required for Code compliance.
Because DLC it conducting the-testing in a manner that meets the guidance in-Position 1 of Generic letter 89-04 as stipulated in the previous SE, further l'RC ap)roval is not required at this time.
You should proceed with actions as descri)ed in the DLC letter dated November 12, 1992.
Sincerely,
/5/
/22 Walter R. Butler, Director Project Directorate 1-3 Division of Reactor Projects - 1/11 Of fice of Nuclear Reactor Regulation cc:
See next page DISTRIBUTION:
Docket file W. Butler V. McCree, EDO NRC & Local PDRs T. Clark J. Linville, R'l PDI-3 Reading G. Edison T. Murley/F.Miraglia OGC J. Partlow E, Jordan E. Rossi G. Hill (2)
J. Lieberman ACRS (10)
S. Varga OPA J. Calvo OC/LFDCB
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WE OfflCIAL RECORD COPY FILENAME: A:\\BVlM84983.LTR
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.e Mr. J. 0.-SieLer
-2 February 8, 1993 If.the testing is determined to be acceptable for a full-stroke exercise of the safety injection tank discharge check valves, the method is acceptable in i
accordance with the Code requirements and the guidance of Position 1 of GL 89-04.
Based on the information presented by Fort Calhoun, the test methodology appears to meet these requirements and guidance.
The staff considers the detailed evaluation a verification of the testing and a means of determining if any changes to the test procedures or assum)tions are required for compliance. Untti the final evaluation-is complete, tie method is considered acceptable. Therefore, DLC may utilize essentially the same method in the upcoming Beaver Valley Unit I refueling outage..When the final evaluation of the testing performed at fort Calhoun Station.is com)1ete, NRC will provide:a copy to DLC and will inform DLC if any changes in t1e testing, such as the use of nonintrusive' techniques, are required..for Code compliance.
Because DLC is conducting the testing in a manner that meets the guidance in Position 1 of Generic letter 89-04 as stipulated in the previous SE, further NRC ap)roval is not required at this time.
You should proceed with actions as descri)ed in the DLC letter dated November 12, 1992.
Sincerely, d L[
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Walter R. Butler, Director Project Directorate I-3 Division of-Reacter Projects - !/II Office of Nuclear Reactor Regulation-ct See next page i
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- Mr. J. D. Sieber Beaver Valley Power Station-Duquesne Light Company
-Units 1'& 2 CC:
. Jay E. Silberg, Esquire
-Bureau of Radi'ation.~ Protection Shaw, Pittman, Potts & Trowbridge Pennsylvania-Department ofu 2300 N Street, NW.
Environmental _ Resources Washington, DC 20037 ATTN: -R.cJanati
,Nst Office Dox 2063 Helson Tosat. Manager Harrisburg,JI'ennsylvania 17120 Nuclear Safeiy Duquesne Light t,umpany Mayor of thp-Borrough-of Post Office Box 4 Shippingport Shippinqport, Pennsylvania 15077 Post Offico Box 3-Shippingport, Pennsylvania 15077-Commissioner Roy M. Smith West Virginia Department of Labor Regional Administrator. Region-1 Building 3, Room 319 U.S. Nuclear Regulatory Commission Capitol Complex 47S Allendale Roadi Charleston, West Virginia 2530E-King of Prussia,-Pennsylvania 19406 John D.- Borrows Residerrt Inspecter Director, Utilities Department U.S.- Fr: lear Regulatory Commission:
Public Utilities Commission.
Post Office Box 181 180 East Broad Street-Shippingport, Pennsylvania 15077 Columbus,- Ohio 43266-0573 Ole -
10r, Pennsylvania-Emergency Management Agency Post Office Box 3321 Harrisburg,-Pennsylvania 17105-3321 Ohio EPA-DERR ATTN: 'Zack A. Clayton-Post Office Box 1049'
_ Columbus, Ohio 43266-0149-
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