ML20149F803
| ML20149F803 | |
| Person / Time | |
|---|---|
| Site: | Callaway  |
| Issue date: | 02/10/1988 |
| From: | Schnell D UNION ELECTRIC CO. |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| ULNRC-1724, NUDOCS 8802170370 | |
| Download: ML20149F803 (4) | |
Text
Umon i Etscrarc a
1901 Gratiot Street. St. Louis Donald F. Schnell Vee Pres > dent February 10, 1988 U.S. Nuclear Regulatory Commission ULNRC-1724 ATTN: Document Control Desk Washington, D.C.
20555 Gentlemen:
DOCKET NUMBER 50-483 CALLAWAY PLANT RESPONSES TO NRC QUESTIONS ON MSLB SUPERHEAT ANALYSIS
Reference:
ULNRC-1640 dated October 5, 1987 The reference letter responded to NRC Staff questions concerning the main steam line break superheat analysis performed for Callaway.
In the reference letter, the response to question 1 noted that non-Class IE main steamline flow transmitters could be used as alternate indication for verifying steam generator isolation.
These transmitters were mentioned because they would provide direct indication ot steam flow that could assist the plant operators in verifying isolation valve closure.
However, use of these transmitters is not a requirement because the fully qualified, Class IE indicating circuits mentioned in the reference letter, i.e.,
steam generator level and pressure, auxiliary feedwater flow, and reactor coolant temperature, would themselves provide the necessary information to verify steam generator isolation.
If you have additional questions concerning this matter, please contact us.
Very truly yours, k Donald chnell DS/ dis m23883 Bi8"4ha P
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Mahng Address P.O. Box 149, St. Lou:s, MO 63166
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'4 STATE OF MISSOURI'-)
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Robert J.
Schukai, of lawful ago, being first duly sworn upon oath says that he is General Manager-Engineering (Nuclear) for
-Union Electric Company; that he has' read the foregoing document and knows the content thereof; that he has executed the same for and-on behalf of said cotapany_ with full power and authority to do so; and that the facts therein stated are true and correct to the best of his knowledge, information1and belief.
5 By Robert Sc' rt%ai i
General b ger-Engineering Nuclear.
SUBSCRIBED and sworn to before me this /27b' day of-)
198[
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BARBARA [P[AFk 8v h0fARY PUBUC. STATE OF W1SSOURI MY COMMtSSCN EXPIRES APRIL 22. 1989 ST. LOUIS COUNTY I
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cc Gerald'Charnoff, Esq.
Shaw, Pittman,_Potts & Trowbridge 2300.N. Street, N.W.
' Washington,.D.C.
20037 Dr. J.10. Cermak
'CFA, Inc.
4 Professional Drive (Suite 110)
Gaithersburg, MD 20879 W.
L. Forney Chief, Reactor Project Branch 1 U.S. Nuclear Regulatory Commission Region III 799 Roosevelt Road Glen Ellyn, Illinois 60137
~ Bruce Little Callaway Resident Office U.S.-Nuclear Regulatory Commission RRil Steedman, Missouri 65077 Tom Alexion (2)
Office of Nuclear Reactor Regulation i
U.S. Nuclear Regulatory Commission Mail Stop 316 7920 Norfolk Avenue Betheuda, MD 20014 i
Manager, Electric Department Missouri Public Service Cotamission P.O. Box 360 Jefferson City, MO 65102 i
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D. Shafer/A160.761
/QA Record (CA-758)
Nuclear Date DFS/ Chrono D.
P. Schnell J.
E. Birk J.
F. McLaughlin A.
P. Neuhalfen R.
J. Schukal M. A. Stiller G.
L.
Randolph R. J.
Irwin H. Wuertenbaecher W. R. Campbell A. C. Passwater R.
P. Wendling D.
E. Shafer D.
J. Walker O. Maynard (WCNOC)
R. C. Slovic (Bechtel)
G56.37 (CA-460) l T.
P. Sharkey NSRB (Sandra Auston) 6 210.0I l
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