ML20033B532
| ML20033B532 | |
| Person / Time | |
|---|---|
| Site: | Atlantic Nuclear Power Plant  |
| Issue date: | 11/27/1981 |
| From: | Rothberg O Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20033B480 | List: |
| References | |
| NUDOCS 8112010498 | |
| Download: ML20033B532 (4) | |
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VilITED STATES OF AllERICA NUCLEAR REGULATORY C0ftt11SSION 3
BEFORE THE AT0111C SAFETY AND LICENSING BOARD In the flatter of
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0FFSHORE POWER SYSTEMS Docket No. STil 50-437 (Floating Huclear Power Plants)
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14RC STAFF'S UPDATE OF TESTIM 0 fly REGARDING ACCCE C0llTENTION 9 (CONTROL ROOM) by Owen 0. Rothberg During the hearing session of July 28, 1976, foll owing Tr. 2536, the Staff testified that the 3/4 inch thick steel plate on the exterior wall of the central control room for the captioned facilities would be able to withstand the postulated tornado missile spectrum. However, based on full scale tests (Calspan Report No. HC-5985-X-1, February, 1977) and scale model tests (Southwest Resecrch Institute Report No. 02-4503-001, January 28,1977), it was discovered that a 3/4 inch thick steel panel is only marginally capable, at rcom temperature, of preventing penetration by the worst case tornado missle in the spectrum postulated by the Staff for the FNP. That missile is a schedule 40 4
steel pipe, with a diauleter of 12 inches, a length of 15 inches, and a weight of 743 lbs, impa '% at 211 feet /second.
In a letter dated November 22,1976, D.4. ". arc was informed by Staff counsel, that as a result of the Cae gan v., the Staff would be re-evaluating its
' testimony with regard to ACCCE Contention 9.
0112010498 811127 PDR ADOCK 05000437 T
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T 2-The Applicant subsequently infonned the Staff that the design of the FI4P has been changed and that the steel plate thickness has been changed to one and one-eighth inches. The Staff has examined that design change and has concluded, based upon review of the above-mentioned reports and by independent calculation, that a one. and one-eighth inch thick steel plate will conservatively provide penetration protection against the full spectrum of tornado missiles postulated for the FNP.
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T ENCLOSURE (1)
OWEN 0. ROTHBERG PROFESSIONAL QUALIFICATIONS STATEMENT STRUCTURAL ENGINEERING BRANCH DIVISION OF ENGINEERING 0FFICE OF NUCLEAR REACTOR REGULATION t,
IamastructuralengineerforNRCandresponsibleforrehiewofthesafety analysis report for the Floating Nuclear Plant. My background is as follows:
1961-GraduatedUnihersityofFlorida,BachelorofCihilEngineering.
1962-1964 Graduate courses in nahal architecture strength of materials and mathematics at Unviersity of Califonia, Berkeley.
1961-1973 NahalArchitect(Structures)andSupervisoryNaval Architect (Structures)attheSanFranciscoNahal Shipyard. Designed and supervised the design of ship structuresforalltypesofnahalsurfaceshipsand conventional submarines. Designed and analyzed complex steel structures and components.
1973-Naval Architect (Structures) at M. Rosenblatt & Son, Naval Architects and Marine Engineers, San Francisco, Ca. Performedstudiesofproposednahalsurface-effect ship structures and deep ocean mo~oring projects.
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.2-1973-1977 SuperhisoryNahalArchitect(Structures)atMareIsland Nahal Shipyard, Valljo Ca. Designed,andsuperhised the design and installation, of equipment mounting and ship structures for nuclear submarines. Designed and analyzedshockandhibrationisolatedequipmentmountings.
1977-1978 Hull Equipment Engineer at Naval Ship Engineering Center, Arlington, Va. Designedandsuperhiseddesignofall typesofshipshullequipment(doors, hatches, ladders, gratings, partitions, ramps,dahits).
1978-1980 Senior Engineer for Serhice Craft, Nahal Sea Systems Command Headquarters, Arlington, Va. Project Engineer
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foralltheU.S.Nahy'sbarges.andserhicecraft (about400)inchargeofoherhaulplanningandcon-figuration control.
1980-present Structural Engineer at U. S. Nuclear Regulatory Commission, Bethesda, Md. Performrehiewandehaluationofnuclear power plant structures including all SEP plants, Floating NuclearPlant,BellefonteandRiherBend.
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