ML17139A911
| ML17139A911 | |
| Person / Time | |
|---|---|
| Site: | Susquehanna  |
| Issue date: | 07/23/1982 |
| From: | Eisenhut D Office of Nuclear Reactor Regulation |
| To: | Ahearne J, Gilinsky V, Palladino N NRC COMMISSION (OCM) |
| Shared Package | |
| ML17139A912 | List: |
| References | |
| TASK-AS, TASK-BN-82-55 BN--82-55, BN-82-55, NUDOCS 8208090336 | |
| Download: ML17139A911 (7) | |
Text
Docket Nos.:
5Q-387 and 50-388 JUL 2 3 1982 MENORANDUII FOR:
Chairman Palladino Commissioner Gilinsky Commissioner Ahearne Commissioner Poberts Commissioner Asselstine Darrell G. Eisenhut, Director Division of Licensing Office of Nuclear Reactor Regulation
SUBJECT:
BOARD NOTIFICATION - AIR PRESSURE LOADS OH THE DRYMELL-hlETMELL VACUUH BREAKERS DURING POOL SHELL FOLLOWIHG A POSTULATED LOCA (Board Notification 82-55)
'n accordance with present HRC procedures regarding Board Notifications, the enclosed material is provided to the Commission for information.
This material is applicable to the Susquehanna Steam Electric Station which is presently before the Commission.
This information is generic and may have applicability to all dockets with boiling water reactors having either
- a. Hark I or Mark II type containment.
Due to the larger volumes in the IIark III containments, we do not anticipate this matter will affect these facilities.
Basically, the safest -related components involved are the drywell to wetwell vacuum breakers which can be subject to an air-clearing load resulting from a pool swell following a postulated loss-of-coolant accident.
Various components of the vacuum breaker potentially can be overstressed by an impact load whose magnitudes are shown on Attachment 1 for seven Mark II facilities.
Of these
- seven, four including Susquehanna have Anderson-Greenwood (AGCO) vacuum breakers whose present design might be overstressed at an impact circular velocity of
'bout 10 radians/second.
Enclosure 2 shows a configuration typical of the AGCO vacuum breaker valves.
In discussions with the Susquehanna applicant prior to licensing, the staff was informed that the results from certain tests and analyses satisfactorily demonstrate operability of these vacuum breakers when subjected to pool dynamic loads.
This matter will be considered resolved on receipt of the documentation
Contact:
R. Perch pDR ADOCK 05000387 820809033b 820723 x28136 f P PDR OFFICE%
SURNAME/
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NRC FORM 018 u0-80) NRCM 0240 OFFICIAL RECORD COPY USGPG: 1991-SS5-960
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JUL 2 3 1982 containing the results of the applicant's tests and analyses.
The staff under-stands the documentation will be filed by about August 15, 1982.
In the interim, the staff concluded that operation of Susquehanna, Unit 1 at power level up to 5% rated power would not lead to undue risk to the health and safety of the public pending resolution as discussed above.
Enclosures:
1.
Board Notification 82-55 2.
Cross section of AGCO Valve Oarrell G. Eisenhut, Director Division of Licensing Office of Nuclear Reactor Regulation cc w/encls.:
See next page OFFICE/
SURNAME/
DATE II RPerch/lg 7/21/82 BJ DL:LB¹2 DL.
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I NRC FORM 318 (10-80) NRCM 0240 OFFICIAL RECORD COPY USGPO: 1991-335.960
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Susquehanna Mr. Norman W. Curtis Vice President Engineering and Construction Pennsylvania Power 5 Light Company Allentown, Pennsylvania 18101 ccs:
Jay Silberg, Esquire'haw, Pittman, Potts
& Trowbridge 1800 M Street, N.
W.
Washington, D.
C. 20036 Edward M. Nagel, Esquire General Counsel and Secretary
~ Pennsyl vania Power 5 Light Company 2 North Ninth Street Allentown, Pennsylvania 18101 Mr. William E. Barberich Nuclear Licensing Group Supervisor Pennsylvania Power 5 Light Company 2 North Ninth Street Allentown, Pennsylvania 18101 Mr. G.
Rhodes Resident Inspector P. 0.
Box 52 Shickshinny, Pennsyl vania 18655 Gerald R. Schultz, Esquire Susquehanna Envi rormental Advocates P. 0. Box 1560 Wilkes-Barre, Pennsyl vania 18703 Mr. E. B. Poser P roje ct' ngi neer Bechtel Power Corporation P". 0.
Box '3965 San'Franci sco, Cali fornia 94119 Ms. Colleen Marsh P. 0.
Box 538A, RD k'4 Mountain Top, Pennsylvania 18707 Mr. Thomas J. Halligan Correspondent The Citizens Against Nuclear Dangers P. 0.
Box 5
- Scranton, P ennsy1 va ni a 18501 Mr. J; W. Millard Project Manager Mail Code 395 General Electric Company
, 175 Curtner Avenue San J ose, California 95125 Robert W. Adler, Esquire Office of Attorney General 505 Executive House P. 0.
Box 2357 Harrisburg, Pennsylvania 17120 Dr. J u di th H. J ohns rud Co-Director Environmental Coalition, on NuClear Power 433 Orlando Avenue State, College, Pennsylvania 16801 Mr..Thomas M. Gerusky, Director
'Bureau of Radiation Protection Resources Commonwealth of Pennsyl vania P. 0.
Box 2063 Harrisburg, Pennsylvania 17120
DISTRIBUTION OF'OARD NOTIFICATION Susquehanna Units 182/COMM Docket Ho. 50-387/388 Chairman Pal ladino Commissioner Gilinsky Commissioner Ahearne Commissioner Roberts Commissioner Asselstine
, Glenn 0. Bright, Esq.
Dr. Johr H.
Buck Stephen F. Eilperin, Esq'.
James P. Gleason, Esq.
Thomas S.
- Moore, Esq
~
Dr. Paul W.
Purdom Mr. Robert W. Adler Mr. Thomas M. Gerus.ky Mr. Thomas J. Halligan Dr. Judith H. Johnsrud Ms. Colleen Marsh G.
Rhodes Jay Silberg, Esq.
Mr. DeVitt C. Smith Bryan A. Snapp, Esq.
Susquehanna Environmental Advocates ACRS Hembers Dr. Robert C.'Axtmann Hr. Nyer Bender Dr. Hax W. Carbon Nr. Jesse C. Ebersole Hr.. Harold Etherington 0'r. William Kerr Or. Harold W. Lewis Dr. J.
Carson Hark Nr. William N. Hathis Dr.
Dade W. Hoeller Dr. David Okrent Dr. Hilton S. 'Plesset Hr. Jeremiah J.
Ray Or.
Paul G.
Shewmon
,Dr. Chester P. Siess Hr: David A. Ward Atomic Safety and L'icensin'g Board Panel Atomic Safety and Licensing Appeal Panel Docketing and Service Section Document Management Branch