IR 05000220/1996005
| ML17059B127 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 05/08/1996 |
| From: | Hood D NRC (Affiliation Not Assigned) |
| To: | NRC (Affiliation Not Assigned) |
| References | |
| NUDOCS 9605130415 | |
| Download: ML17059B127 (22) | |
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,UNITEP STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 May 8, 1996 LICENSEE:
Niagara Hohawk Power Corporation FACILITY:
Nine Mile Point Nuclear Station, Unit
SUMMARY:
SUMMARY OF TELEPHONE CONVERSATION OF MAY 2, 1996, ON REACTOR AND TURBINE BUILDING BLOMOUT PANELS On Hay 2, 1996, the NRC staff discussed, via telephone, the design/licensing basis questions on the Nine Hile Point, Unit 1, Reactor and Turbine Building blowout panels that were enclosed with NRC Special Inspection Report No. 50-220/96; 50-410/96-05, dated March 29, 1996.
Participants for the NRC staff were H. Hartzman, D. Jeng, M. Long, and D. Hood.
Participants for the licensee included C. Terry and several others.
To support the discussions, the licensee faxed the enclosed information to the.
NRC staff.
During the call, the NRC staff provided further clarification of the questions.
The licensee is performing further evaluations and anticipates further interim discussion with the staff prior to providing final written responses.
Specifically:
1.
The licensee is refining its modeling of the blowout panels to account for two-way action of the panels.
This will include the panel membrane deformation effects on the upper-bound panel failure pressure capacity.
2.
3.
The licensee is examining the American Institute of Steel Construction design and test data that forms the basis for its shear-tension interaction formula and plans to use test based upper-bound bolt strengths, both shear and tension, in determining the upper-bound panel failure pressure.
The licensee is also considering testing of several bolts to determine their upper-bound shear capacities.
The licensee is performing a more realistic panel failure capacity analysis that uses realistic models and takes into account the actual panel/bolt response to an increasing pressure load, as well as the panel/bolt deformation from its initial yield through redistribution of bolt loads till the final failure of the panel.
Licensee acknowledges that use of an appropriate non-linear/large deformation finite element code might be needed to achieve the analysis objective.
The licensee acknowledged that some questions not included in the March 29, 1996, Inspection Report, but raised during the conference of April 12, 1996, will also be addressed in the written responses.
9605i30415 9h0508 PDR ADGCK 05000220 P
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The licensee currently anticipates that further telephone discussions with the staff regarding status of the evaluations may be appropriate in about 2 weeks.
Docket Nos.
50-220 and 50-410 Enclosure:
As stated cc w/encl:
See next page Darl S.
Hood, Senior Project Hanager Project Directorate I-I Division of Reactor Projects -I/II Office of Nuclear Reactor Regulation
F Niagara Mohawk Powe orporation
~ 'C:
Hr. B. Ralph Sylvia Executive Vice President and Chief Nuclear Officer Niagara Mohawk Power Corporation Generation Business Group D-2 300 Erie Boulevard West Syracuse, NY 13202 Hr. Richard B. Abbott Vice President and General Hanager-Nuclear Niagara Mohawk Power Corporation Nine Hile Point Nuclear Station P.O.
Box 63 Lycoming, NY 13093 Mr. Martin J.
McCormick, Jr.
Vice President Nuclear Safety Assessment and Support Niagara Hohawk Power Corporation Nine Mile Point Nuclear Station P.O.
Box 63 Lycoming, NY 13093 Hr. Kim A. Dahlberg General Hanager Projects Niagara Mohawk Power Corporation Nine Mile Point Nuclear Station P.O.
Box 63 Lycoming, NY 13093 Mr. Norman L. Rademacher Plant Manager, Unit
Nine Mile Point Nuclear Station P.O.
Box 63 Lycoming, NY 13093 Hr. John T. Conway Plant Manager, Unit 2 Nine Mile Point Nuclear Station P.O.
Box 63 Lycoming, NY 13093 Hs. Denise J. Wolniak Manager Licensing Niagara Mohawk Power Corporation Nine Hile Point Nuclear Station P.O.
Box 63 Lycoming, NY 13093 Regional Administrator, Region I U. S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406 Nine Hile ~nt Nuclear Station Unit Nos. ~nd
Resident Inspector U. S. Nuclear Regulatory Commission P.O.
Box 126 Lycoming, NY 13093 Charles Donaldson, Esquire Assistant Attorney General New York Department of Law 120 Broadway New York, NY 10271 Hr. Richard H. Kessel Chair and Executive Director State Consumer Protection Board 99 Washington Avenue Albany,,
NY 12210 Hr. Paul D.
Eddy State of New York Department of Public Service Power Division, System Operations 3 Empire State Plaza Albany, NY 12223 Mark J. Wetterhahn, Esquire Winston 8 Strawn 1400 L Street, NW Washington, DC 20005-3502 Gary D. Wilson, Esquire Niagara Mohawk Power Corporation 300 Erie Boulevard West Syracuse, NY 13202 Mr. F. William Valentino, President New York State Energy, Research, and Development Authority 2 Rockefeller Plaza Albany, NY 12223-1253 Hr. Richard Goldsmith Syracuse University College of Law E. I. White Hall Campus Syracuse, NY 12223 Mr. John V. Vinquist, WATS Inc.
P.O.
Box 63 Lycoming, NY 13093 Supervisor Town of Scriba Route 8, Box 382 Oswego, NY 13126
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HARD COPY iDo'cket Fi.le PUBLIC PDI-I R/F OGC ACRS E-NAIL W. Russell/F. Niraglia R.
Zimmerman S.
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J. Zwolinski S.
Shankman D. Hood S. Little E. Jordan M. Hartzman D. Jeng W. Long W.
Dean R. Cooper, RI
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May 8, 1996 The licensee currently anticipates that further telephone discussions with the staff regarding status of the evaluations may be appropriate in about 2 weeks.
ORIGINAL SIGNED BY:
Docket Nos.
50-220 and 50-410 Enclosure:
As stated cc w/encl:
See next page DISTRIBUTION'ee next page Darl S.
Hood, Senior Project Manager Project Directorate I-l Division of Reactor Projects -I/II Office of Nuclear Reactor Regulation DOCUMENT NAME:
G: iNMP1iBLOWPANL.TEL To receive a copy of this document,'indicate in the box:
"C" - Copy without attachment enclo re
"E" Co y with attachment enclosure
. "N" = No co y OFFICE LA:PDI-1 E
PH:PD I-1 D:PDI-HANE SLittle DHood/rsl SShsn n
DATE 05/
/ 6 05/
/96 05/
/96
ic)a Recor opy 05/
/96 05/
/96
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