ML20248K897
| ML20248K897 | |
| Person / Time | |
|---|---|
| Site: | Callaway  |
| Issue date: | 06/04/1998 |
| From: | Thomas K NRC (Affiliation Not Assigned) |
| To: | Randolph G UNION ELECTRIC CO. |
| References | |
| TAC-MA1295, NUDOCS 9806100331 | |
| Download: ML20248K897 (3) | |
Text
June 4, 1998 l
Mr. Garry L. Randolph Vice President and Chief Nuclear Officar Union Electric Company Post Office Box 620 Fulton, Missouri 65251 l
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION (RAl)- UNION ELECTRIC COMPANY - CALLAWAY PLANT, UNIT 1 (TAC NO. MA1295)
Dear Mr. Randolph:
The NRC staff has reviewed Union Electric Company's March 9,1998, request for amendment to the Callaway technical specifications to eliminate the requirement to ver.t the centrifugal charging pump casings. As a result of the review, the staff has determined that additional information is needed to complete the review. The information needed is detailed in the enclosure.
To assist the NRC staff in meeting its review schedule, we request that you respond to the RAI in writing within 45 days of receipt of this letter.
If you have any questions, please contact me at (301) 415-1362.
Sincerely, Original Signed By Kristine M. Thomas, Project Manager Project Directorate IV-2 Division of Reactor Projects - Ill/IV Office of Nuclear Reactor Regulation Docket No. 50-483 DISTRIBUTION-
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Enclosure:
Request for Additional Information PUBLIC PDIV-2 Reading CJackson, SRXB OGC,015B18 cc w/ encl: See next page EAdensam WJohnson, RIV WBateman PGwynn, RIV KThomas EPeyton TCollins, SRXB i
DOCUMENT NAME: CALA1295.RAI OFC PDIV-2/PM PDIV-2/LA NAME KTM EN
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m, DATE 06/i /98 06/4 /98 WIFT (Wg e OFFICIAL RECORD COPY l
m 9906100331 990604 PDR ADOCK 05000483 p
Mr. Garry L Randolph
-2 June 4, 1998 cc w/ encl:
Professional Nuclear
. Mr. Otto L. Maynard -
Consulting, Inc.
President and Chief Executive Officer -
19041 Raines Drive Wolf Creek Nucisar Operating Corporation Derwood, Maryland 20855 P.O. Box 411 Burlington, Kansas 66839 Gerald Charnoff, Esq.
Thomas A. Baxter, Esq.
Mr. Dan 1. Bolef, President Shaw, Pittman, Potts & Trowbridge Kay Drey, Representative 2300 N. Street, N.W.
Board of Directors Coalition Washington, D.C. 20037 for the Environment 6267 Delmar Boulevard Mr. H. D. Bono University City, Missouri 63130 Supervising Engineer l
Quality Assurance Regulatory Support Mr. Lee Fritz l
Union Electric Company Presiding Commissioner Post Office Box 620 Callaway County Court House l
Fulton, Missouri 65251 10 East Fifth Street Fulton, Missouri 65151 '
U.S. Nuclear Regulatory Commission Resident inspector Office Mr. Alan C. Passwater, Manager 8201 NRC Road Licensing and Fuels Steedman, Missouri 65077-1302 Union Electric Company Post Office Box 66149 Mr. J. V. Laux, Manager St. Louis, Missouri 63166-6149 Quality Assurance Union Electric Companydolph Post Office Box 620 Fulton, Missouri 65251 Manager-Electric Department Missouri Public Service Commission 301 W. High Post Office Box 360 Jefferson City, Missouri 65102 Regional Administrator, Region IV U.S. Nuclear Regulatory Commission Harris Tower & Pavilion 611 Ryan Plaza Drive, Suite 400 Artington, Texas 73011-8064 Mr. Ronald A. Kucers, Deputy Director Department of Natural Resources P.O. Box 176 Jefferson City, Missouri 65102
a
. g-Enclosure REQUEST FOR ADDITIONAL INFORMATION UNION ELECTRIC COMPANY CALLAWAY PLANT. UNIT 1 DOCKET NO. 50-483 1.
The submittal discusses a 0.5 - 0.6 gallon void that cannot be vented in the discharge of the high pressure injection pump. The submittal goes on to state that new vents were installed at the end of 1997. Please verify that with the new vents, voids in the discharge piping of the pump will not exist after venting.
2.
Please verify that the small amount of gas that can accumulate in the intemal cavities of the pump will not cause excessive wear on the pump. The cover letter to the submitta!
states that vendor information indicates that the vertical suction and discharge piping will prevent pump binding. The vendor should also be able to show that repeated pump starts with small amounts of gas will not cause problems.
3.
Please verify that there are no relative high points in the suction piping of the pump (which is not vented) and that the gas that is naturally vented into the suction will not accumulate.
I