ML19257D241
| ML19257D241 | |
| Person / Time | |
|---|---|
| Site: | Oyster Creek |
| Issue date: | 01/04/1980 |
| From: | Ziemann D Office of Nuclear Reactor Regulation |
| To: | Finfrock J JERSEY CENTRAL POWER & LIGHT CO. |
| References | |
| TASK-03-05.A, TASK-03-05.B, TASK-3-5.A, TASK-3-5.B, TASK-RR NUDOCS 8002010566 | |
| Download: ML19257D241 (3) | |
Text
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UNITED STA~~cF
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WASHINGTON. D. C. 20555
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v January 4,1080 D cket Nc. 50-219 i @ v j '
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i b L A E&ih' Mr. I. R. Fi nf rock, J r.
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Vice President - Generation Jersey Central - er & Light Company Madisen Avenu o.
Punch Bcwl Road Merristo.in, New Jersey 07960
Dear M. Finfrock:
0,E:
S'STEMATIC EVALUATION PROGRAM TOPICS I:I-5.A (EFFECTS OF PIPE BREAK C1 STRUCTURE, SYSTEMS AND C0FPONENTS IMSIDE CONTAINMENT) AND III-5.B j
(3IDE BREAK OUTSIDE CONTAINMENT) l On Sep;erber 12, 1979, representatives cf t e Systematic Evaluation Program I
(SEP) licensees met with the staff and indi:ated their concern over uncertainty related to:
1.
The intent of footnote 14 to Regulatory Guide 1.46 and Section B.2.b. (2) i of Branch Technical Position APCSB 3-1 (attached to Standard Review Plan Section 3.6.1) with respect to when pipe whip loads are to be evaluated in impacted pipes of nomical sizes equal to or greater than that of the postulated broken pipe; and 2.
The criteria with respect to when jet irpingement loads are to be evaluated in impinged pipes.
The absve points are essential elements of -he referenced SEP Topics. As a resu't, the SEP Branch, Division of Operating Reactors, has had frequent
- eetin;s with the Mechanical Engineerinc Branch (MEB), Division of Systems
- Safety, o ensure that the position given below is in agreement with current criter'a used in evaluating plants under reriew for both Construction Pemits and Operating Licenses.
It is :he staff's position that when evaluating the pipe whip impact and jet iroingsrent effects of postulated pipe b reats for SEP Topics III-5.A and III-5.5, the following criteria shall apoly:
1.
A whipping pipe should be considerec ca:able of rupturing impacted pi:es of smaller nominal size.
I 2.
A m ':cing pipe should be considerac ca:able of developing through l
wa leakage cracks in in: acted pi:es c' equal or larger nominal si:ss wich thinner wall thicknesses.
1857 207 800201o 5 66
W Mr. I. R. Finfrock, J r. January 4,1 C30 3.
A whipping pipe may be considered incapcble of rupturing or cracking impacted pipes of equal or larger noainal sizes with equal or larger wall thickne.sses. Confimatory analysis is not required.
4.
The effects of jet impingement loads should be considered and evaluated regardless of the ratio of impinged and postulated broken pipe sizes, even if evaluation for pipe whip impact is not required by criterion 3 above.
The staff will consider analytical and experimental justification for the use of less conservative criteria by the licensees on either a generic or case-by-case basis.
Si ncerely,
m_ A
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Dennis L. Ziemap, Chief Operating Reactors Branch #2 Division of Operating Reactors cc:
See next page 1857 208
T i
I Mr. I. R. Finfrock, Jr. January 4, 1980 CC G. F. Trowbridge, Esquire
'ene Fisher Shaw, Pittman, Potts and Trce., ridge Bureau Chief 1800 M Street, N. W.
Bureau of Radiation Protection Washington, D. C.
20036 380 Scotts Road Trenton, New Jersey 08628 GPU Service Corporation ATTN: fir. E. G. Wallace Mark L. First Licensing Manager Deputy Attorney General 260 Cherry Hill Road State of New Jersey Parsippany, New Jersey 070E4 Department of Law and Public Safety Environmental Protection Section Anthony Z. Roisnan 36 West State Strr:et Natural Resources Defense Ccuncil Trenton, New Jersey 08625 917 15th Street, N. W.
Washington, D. C.
20006 Joseph T. Carrol', Jr.
P1 ant Superintendent Oyster Creek Nuclear Generating Steven P. Russo, Esquire Station 248 Washington Street P. O. Box 388 P. O. Box 1060 Forked River, New Jersey 08731 Toms River, New Jersey OS7E3 Joseph W. Ferraro, Jr., Esquire Director, Technical Assessment Deputy Attorney General Division State of New Jersey Office of Radiation Programs Department of Law and Public Safety (AW-459) 1100 Raymond Boulevard U. S. Environmental Protection Newark, New Jersey 07012 Agency Crystal Mall #2 Ocean County Library Arlington, Virginia 20460 Brick Township Branch 401 Chanbers Bridge Road U. 5. Environnental Protection Brick Town, New Jersey 08723 Agency Region II Office Mayor ATTN:
EIS COORDINATOR Lacey Township 26 Federal Plaza P. O. Box 475 New York, New York 10007 Forked River, New Jersey 08721 K M C, Inc.
Conmissioner ATTN:
Richard Schaffstall Departnent of Public Utilities 1747 Pennsylnnia Avenue, N. W.
State of New Jersey Suite 1050 101 Commerce Street Washington, D. C. 20006 Newark, New Jersey 071C2 MPR Associates, Inc.
ATTN: William R. Schmidt 1140 Connecticut Avenue, N. W.
Washington, D. C.
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