ML20246P917
| ML20246P917 | |
| Person / Time | |
|---|---|
| Site: | Callaway  |
| Issue date: | 07/17/1989 |
| From: | Hannon J Office of Nuclear Reactor Regulation |
| To: | Schnell D UNION ELECTRIC CO. |
| References | |
| TAC-73118, NUDOCS 8907200362 | |
| Download: ML20246P917 (2) | |
Text
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" July 17,11989
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Docket No.' : 50-4834 Mrc Donald F. Schnell s
Senior,Vice President - Nuclear Union Electric Company Post Office Box =149.
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St. Louis, Missouri 63166
Dear Mr.-Schnell:
SUBJECT:
- ENVIRONMENTAL-QUALIFICATION.OF BUNKER RAMO ELECTRICAL PENETRATION-ASSEMBLIES AT CALLAWAY (TAC N0. 73118)'
Reference:
' Letter from Gary M. Holahan to Donald F..Schnell on above subject, dated January 31, 1989-By letter dated A' ril'27,1989, you responded to the information requested in p
the reference.
In your response, you addressed the staff concern regarding
- the' similarity of the tested configurations and actual installed instrument circuits, and:you_ provided additional discussion regarding the staff' concern of low hsulation resistance (IR) readings on control circuits..You also stated that you made available two of your spare penetration modules for_.
testing at.Wyle Labs, and that since the test profile enveloped your. require-
.ments and that IR values greater than that required for the most limiting.
instrument loop at Calloway were observed, you felt that the NRC approval given
, for Braidwood on March 31, 1989 is equally applicable to Callaway.
The staff notes that your environmental qualification file on the Bunker Ramo Electrical. Penetration Assemblies may be subject to a. staff audit at a future date.
Sincerely,.
/s/
John'.N. Hannon, Director Project Directorate III-3 Division of Reactor Projects - III, i
IV, V and Special Projects Office of Nuclear Reactor Regulation
-cc: See next page DISTRIBUTION
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M. Virgilio J. Hannon P. Kreutzer
, T. Alexion P. Shemanski C. McCracken 0GC-Rockville E. Jordan B. Grimes ACRS(10)
PD3 Plant File i
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- SEE PREVIOUS CONCURRENCE Office:
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Date:
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Mr. D. F. Schnell Callaway' Plant Union Electric Company Unit No.~1 cc:
Dr. J. 0. Cermack fir. Bart D. Withers CFA Inc.
President and Chief 4_ Professional Dr., Suite 110 Executive Officer Gaithersburg, MD 20879' Wolf Creek Nuclear Operating.
Corporation Gerald Charnoff, Esq.
P. O. Box 411 Thomas A. Baxter, Esq.
Burlington, Kansas 66839 Shaw, Pittman, Potts & Trowbridge 2300 N Street, N. W.
Mr. Dan I. Bolef, President Washington, D. C.
20037 Kay Drey, Representative-
. Board of Directors Coalition
' Mr. T. P. Sharkey for the Environment Supervising Engineer, St. Louis Region Site Licensing 6267 Delmar Beulevard Union Electric Company University City, Missouri 63130 Fost Office Box 620 Fulton, Missouri 65251 U. S. i;uclear Regulatory Commission Resident Inspectors Office RR#1 Steedman, Missouri 65077 tir. Alan C. Passwater, Manager Licensing and Fuels Unicn Electric Ccepany Post Office Box 149 St. Louis, Misscuri 63166 l
E Nanager - Electric Department l
Missouri Public Service Commissior l
301 W. High Post Office Box 360 Jefferson City, Missouri 65102 Regional Administrator U. S. NRC, Region III 799 Roosevelt Road Glen Ellyn, Illinois 60137 Mr. Ronald A. Kucera, Deputy Director Departnent cf Natural Resources P. O. Box 176 Jefferson City, Missouri 65102 I
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