Its list ll,
March 10, 1987
Docket Nos. 50-275 and 50-323
LICENSEE:
FACILITY:
SUBJECT:
Pacific Gas and Electric Company (PGr8E)
Diablo Canyon Nuclear Power Plant, Units I and 2
- MEFTING WITH LICENSEE ON FEBRUARY 18, 1987 SPENT FUEL
POOL EXPANSION RACK TO RACK INTERACTIONS
ll, list NRC staff and its consultant from Franklin Research Center (FRC)
on February 18, 1987 to discuss the subject. The meeting notice attendees are attached as Enclosures 1 and 2, respectively. In
a
met with PG&E
and
of
letter of
February
1987 the staff had requested PGSE to provide additional
information and clarification on the following four items with respect
to
rack-to-rack interactions:
I. Rocking Springs
2. Coefficient of Friction
3. Fluid Coupling
4. Time Histories
The purpose of the meeting was for PGSE to provide its response to the
request, to be followed with a formal submittal which would also consider any
,
staff comments and results
discussed at this meeting
forthcoming hearing on the
any licensing action. The
wfssarpstoaemnpftfr'tishnfeucesiulmp.maempleloatyiornylgg.oeexnfpearPtahnGt'eIseIidEoPnGstIiIanEatnedppdrreenpstoheatnarattaatsitoitohanne,sbfianosfiirsosrtmhfeoartion
provided in Enclosure 3.
At the conclusion of the PGSE presentation the NRC staff and its consultant
ll, requested that the 'following additional information also be provided in
response to items 2 and 3 of the NRC letter of February
1987 (see also
Enclosure 3):
2a. Coefficient of Friction:
Compare the impact forces using u = 0.8 and u = 0.2
for single rack and multiple rack, keeping the distance
between adjacent racks constant.
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3a. Fluid Coupling:
Using a distance of 7.5 inches for
rack and multiple rack, compare the in your response the discussion of as presented at the meeting. Also,
the two cases of single impact forces. Include
fluid coupling analyses
address the influence to
the impact forces of the modelled racks when the adjacent racks
move in phase, out of phase, and are fixed.
At the conclusion might be needed.
of the meeting the staff The staff requested that
stated that further clarification
PGSE provide the responses to the
February
possible.
complete
11T, he198s7taflefttsetarteadnd
to
that
the the
its evaluation of the items
above 2 additional items as
information is needed for
soon as
the staff
related to rack-to-rack interaction.
to
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1987) and the two additional requests stated at February 18, 1987 meeting]
Enclosures: As stated cc: See next page
3 87
PD83
HSchier ing:pds 3/(g/87
Hans Schierli g, Project Manager Project Directorate P3 Division of PWR Licensing-A
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4
Mr. J. D. Shi ffer
Pacific Gas and Electric Company
CC:
Richard F. Locke, Esq.
Pacific Gas 5 Electric Company
Post Office Box 7442 San Francisco, California 9412Q Janice E. Kerr, Esq.
California Public Utilities Commission
350 McAllister Street San Francisco, California 94102
Ms. Sandra A. Silver
660 Granite Creek Road
Santa Cruz, California 95065
Hr. W. C. Gangloff
Westinghouse Electric Corporation
P. 0. Box 355
Pittsburgh, Pennsylvania 15230
Manaqing Editor San Luis Obispo County Telegram
Tribune
1321 Johnson Avenue
1726 M Street, N.W. Suite 1100
Washington, DC 20036-4502
Mr. Leland M. Gustafson, Manager Federal Relations
Pacific Gas and Electric Company 1726 M Street, N. W.
Washington, DC 20036-4502
Dian M. Grueneich, Esq.
Edwin F. Lowry, Esq. Grueneich & Lorry
345 Franklin Street San Francisco, California
94102
Diablo Canyon
NRC Resident Inspector Diablo Canyon Nuclear Power Plant
,
c/o U.S. Nuclear Regulatory Commission P. 0. Box 369 Avila Beach, California 93424
Mr. Dick Blakenburg
Editor A Co-Publisher South County Publishing Company
P. 0. Box 460
Arroyo Grande, California 93420
Bruce Norton, Esq. c/o Richard F. Locke, Esq.
Pacific Gas and Electric Company Post Office Box 7442 San Francisco, California 94120
Dr. R. Siera
B.
Club
F-ergSuasnotna
Lucia Chapter
Rocky Canyon Star Route
Creston, California 93432
Chairman
San Luis Obispo County Board of
Supervisors
Room 220
County Courthouse Annex
San Luis Obispo, California 93401
Director
Energy Facilities Siting Division
Energy Resources Conservation and Development Commission
1516 9th Street Sacramento, California 95814
Ms. Jacquelyn Wheeler
2455 Leona Street San Luis Obispo, California 93400
................
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