ML19305D164
| ML19305D164 | |
| Person / Time | |
|---|---|
| Site: | McGuire, Mcguire  |
| Issue date: | 03/19/1980 |
| From: | Baer R Office of Nuclear Reactor Regulation |
| To: | Parker DUKE POWER CO. |
| References | |
| NUDOCS 8004140123 | |
| Download: ML19305D164 (4) | |
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MAR 101980 Docket Nos. 50-369 and 50-370 Mr. William 0. Parker, Jr.
Vice President, Steam Production Duke Power Company P. O. Box 2178 422 South Church Street Charlotte, North Carolina 28242
Dear Mr. Parker:
SUBJECT:
LOCA ANALYSES (McGuire Nuclear Station, Units 1 and 2)
As a result of our review of the LOCA analyses provided in the McGuire FSAR Revisions 29, 33, 34, and 36, we require additional information as described in the Enclosure. This is Item No. 5 of our list of open items for McGuire.
We request that this information be provided no later than April 21, 1980.
Sincerely, Rohe% S i ?./ & r\\
rt L. Baer, Chief Light Water Reactors Branch No. 2 Division of Project Management
Enclosure:
Request For Additional Information ecs w/ enclosure:
See next pages 800414093
4 MAR 1 f 1980 Mr. William 0. Parker, Jr.
Vice President, Steam Production Duke Power Company P. O. Box 2178 422 South Church Street Charlotte, North Carolina 28242 cc: Mr. W. L. Porter Duke Power Company P. O. Box 2178 422 South Church Street Charlotte, North Carolina 28242 Mr. R. S. Howard Power Systems Division Westinghouse Electric Corporation P. O. Box 355 Pittsburgh, Pennsylvania 15230 Mr. E. J. Keith EDS Nuclear Incorporated 220 Montgomery Street San Francisco, California 94104 Mr. J. E. Houghtaling NUS Corporation 2536 Countryside Boulevard Clearwater, Florida 33515 Mr. Jesse L. Riley, President The Carolina Environmental Study Group 854 Henley Place Charlotte, North Carolina 28207 t
J. Michael McGarry, III, Esq.
Debevoise & Liberman 1200 Seventeenth Street, N. W.
Washington, D. C.
20036 Robert M. Lazo, Esq., Chairman Atomic Safety and Licensing Board U. S. Nuclear Regulatory Commission Washington, D. C.
20555 Dr. Emmeth A. Luebke Atomic Safety and Licensing Board U. S. Nuclear Regulatory Commission Washington, D. C.
20555 Dr. Cadet H. Hand, Jr., Director Bodega Marine Lab of California P. O. Box 247 Bodega Bay, California 94923
I a."o, a 1,$P3 Mr. William 0. Parker, Jr.
i cc: ' David Flesichaker, Esq.
i 1735 Eye Street, N. W.,
Suite 709 l
Washington, D. C.
20006 Richard P. Wilson, Esq.
l Assistant Attorney Genecal State of South Carolina 2600 Bull Street Columbia, South Carolina 25201 i
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Enclosure MAR 13 l980 212.111 Provide a LOCA analysis for double-ended cold leg guillotine breaks with Cd = 0.8 for both perfect and imperfect mixir.g l
cases.
I 212.112 Cold leg accumulator sensitivity studies were performed assuming imperfect mixing (non-limiting case).
Justify the cold leg accumulator sensitivity for the limiting break with perfect mixing.
Provide Technical Specifications, etc., which will assure accumulator operating parameters consistent with analysis assumptions.
212.113 Split breaks documented in amendment #34 were performed assuming perfect mixing.
These analyses also assumed a low UHI accumulator volumewhichisapparentlynon-conservativeforperfectmixingcases.(
Show that appropriate cold leg and UHI accumulator volumes have been l
assumed for the analysis of a split break.
Provide additional analyses if/as needed.
212.114 For each LOCA analysis which has been (revisions 29,33,34,36) or is being provided, identify the version of the evaluation model used to perform the calculation so that appropriate comparisons may be made (e.g., Oct. 75, Feb. 78, H 0/Zr fix, rupture / blockage version, 2
etc.).
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