ML18044A481
| ML18044A481 | |
| Person / Time | |
|---|---|
| Site: | Big Rock Point, Palisades File:Consumers Energy icon.png |
| Issue date: | 01/04/1980 |
| From: | Ziemann D Office of Nuclear Reactor Regulation |
| To: | Hoffman D CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| References | |
| TASK-03-05.A, TASK-03-05.B, TASK-3-5.A, TASK-3-5.B, TASK-RR NUDOCS 8002060052 | |
| Download: ML18044A481 (4) | |
Text
e UNITED STATES
.Doc.1<.ET NUCLEAR REGULATORY COMMISSION WASHINGTON. 0. C. 20555 Mr. David P. Hoffman Nuclear Licensing Administrator Consumers Power Company 212 West Michigan Avenue Jackson, Michigan 49201
Dear Mr. Bixel:
January 4, 1980
!.REGULATORY DOCKr.7nu co~
RE:
SYSTEMATIC EVALUATION PROGRAM TOPICS III-5.A (EFFECTS OF FIPE BREM.
ON STRUCTURE, SYSTEMS AND COMPONENTS INSIDE CONTAINME~ff) *.!ND III-5.B
{PIPE BREAK OUTSIDE CONTAINMENT)
On September 12, 1979, representatives of the Systematic Evaluction Program (SEP) licensees met with the staff and indicated their concern over uncertair:y related to:
- 1.
The intent of footnote 14 to Regulatory Guide 1 *. 46 and Sec:icn B.2.b. (2) 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 nominal sizes equal to or greeter than that of the postulated broken pipe; and
- 2.
The criteria with respect to when jet impingement loads are to be evaluated in impinged pipes.
The above points are essential elements of the referenced SEP -:-opi cs.
As a result, the SEP Branch, Division of Operating Reactors, has ~ac frequen~
meetings with the Mechanical Engineering Branch {MEB), Division cf Systems Safety, to ensure that the position given below is in agreemen: ~dth current criteria used in evaluating plants under review for both Construction Percits and Operating licenses.
It is the staff's position that when evaluating the pipe whip ir.i;;act and ~et impingement effects of postulated pipe breaks for SEP Topics r:I-5.A and III-5.B, the following criteria shall apply:
- 1.
A whipping pipe should be considered capable of rupturing ~r;i;:acted pipes of smaller nominal size.
- 2.
A whipping pipe should be considered capable of developing trro'Jgh wall leakage cracks in impacted pipes of equal or larger ncc~nal sizes with thinner wall thicknesses.
L Mr. David J:nu ar.v 4, 1980
- 3. A whipping pipe may be considered incapable of rupturing or cracking irrq:>acted pipes of equal or larger nor.i*nal sizes w-ith equal or 1 arger
- wall thitknesses. Confi nr.atory analysis is not required.
- 4.
The effects of jet impinge.1ent loads should be considered and evaluated regardless of the ratio of ic:lpinged and postulated broken pipe sizes, even if evaluation for pipe whi"p impact is not required by criterion 3 above.
The staff will consider analyticai and experimental j~stification for the use of less conservative criteria :;y th*e licensees on either a generic or case-by-case basis.
Sincerely,
- c.
l :)
cc:
See next page
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Dennis L. Zieman*rl', Chief Operating Reactors Branch #2 Division of Operating Reactors
Mr. David P. Hoffman cc M. I. Miller, Esquire Isham, Lincoln & Beale Suite 4200 One First National Plaza Chicago, Illinois 60670 Mr. Paul A. Perry, Secretary Consumers Power Company 212 West Michigan Avenue Jackson, Michigan 49201 Judd L. Bacon, Esquire Consumers Power Company 212 West Michigan Avenue Jackson, Michigan 49201 Myron M. Cherry, Esquire Suite 4501 One IBM Plaza Chicago, Illinois 60611 Ms. Mary P. Sinclair Great Lakes Energy Alliance 5711 Summerset Drive Midland, Michigan 48640 Kalamazoo Public Library 315 South Rose Street Kalamazoo, Michigan 49006 Township Supervisor Covert Township Route l, Box 10 Van Buren County, Michigan 49043 Office of the Governor (2)
Room l - Capitol Building Lansing, Michigan 48913 Director, Technical Assessment
- Division Office of Radiation Programs*
(AW-459)
U. S. Environraental Protection Agency Crysta 1 Ma 11 #2 Arlington, Virginia 20460 January 4, l ~80 U. s. Environmental Protection Agency Federal Activities Branch Region V Office ATTN:
EIS COORDINATOR 230 South Dearborn Street Chicago, Illinois 60604 Charles Bechhoefer, Esq., Chairman Atomic Safety and Licensing Board Panel U. S. Nuclear Regulatory Commission Washington, D. C.
20555 Dr. George C. Anderson Department of Oceanography University of Washington Seattle, Washington 98195 Dr. M. Stanley Livingston 1005 Calle Largo Santa Fe, New Mexico 87501 Hunton~ willi~ms
- Geur~e C. Freero1an, Jr., Esquire P
- 0. !)ox 153 ti Rich1;i0nd, Viryinia 23212 Pet~r w. Steketee, lsquire 505 Peoµles Buildin~
urdnd l<aµi <.ls, hkhi !:JdO 49SU3 Sh~ldon, Har111011, Roismdn and Weiss 1725 I Street, N. w.
Suit~ 506 Washinyton, O. C.
20006 Nr. John u 1Neil l, II R.oute 2, l)ux 44 Maµle City, ~ichiyan 49664 Charlevoix Puulic Library 1U7 Clinton Street Charlevoix, ~ichiyan 49720 Chairman County ~oard of Suµervisurs Charlevoix County Charlevoix, Michiydn 49720
Mr. David P. Hoffman cc Herbert Grossman, Esq., Chairman Ator,1ic Safety and Licensing Board U. s. Nuclear Regulatory Commission.
Washington, O. C.
20555 Or. Oscar H. Paris Atomic Safety and Licensing Board U. S. Nuclear Regulatory Commission Washi119to11, D. C.
20555 Mr. Frederick J. Shon Atoraic Safety and Licensing Board U. S. Nuclear Regulatory Commission Washington, D. c.
20555
- January 4, 1980