ML20236F120
| ML20236F120 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 10/20/1987 |
| From: | Terao D NRC OFFICE OF SPECIAL PROJECTS |
| To: | NRC OFFICE OF SPECIAL PROJECTS |
| Shared Package | |
| ML20236F123 | List: |
| References | |
| NUDOCS 8710300156 | |
| Download: ML20236F120 (6) | |
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. UNITED STATES
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' NUCLEAR REGULATORY COMMISS'lON
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- wash:NGTON, D. C. 20666 '
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. October 20. 1987:
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. Docket Nos.L50-445/
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-and 50-446
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' APPLICANT:
TexasLutilitieO Electrte CompanyL(TV Electric)
FACILITY:-
Comanche Peak Steam Ncric Station ' Units 1 and 2
SUBJECT:
SUMMARY
OF MEETING ON SEPTEMBER 14, 1987 - CONDUIT SUPPORTS GENERIC TECHNICAL ISSUES j
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On September 14, 1987 the NRC staff and'its consultants met with represen-l
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tatives of'TU. Electric (Applicant) and-their design contractors.at the offices l
of Ebasco Services, Inc. in New York City, New York.
The meeting notice and list of attendees.are provided in Enclosure 1. -The purpose of the meeting was 1
to discuss the. resolutions to the generic technical' issues related to the design of conduit supports (Trains.A, B, and C greater than two inches) at the Comanche Peak Steam Electric Station.(CPSES).
i The conduit support design issues discussed at the meeting were raised primarily during the -Independent Assessment Program (Phase _4) conducted by-g CYGNA' Energy' Services:in 1985.. Other conduit' support issues identified by sources external.to the TU Electric organization including-the interveners, the CPRT third party, and the NRC staff were also discussed.
The issue background and'the approach to resolve the issues are' documented.inLa report entitled,." Evaluation and Resolution of. Generic Technical Issues' for Conduits-and Conduit Supports "* Revision 2 dated March 1987. 'A total of 29 external o
source. issues related to conduit supports were_ discussed in the meeting.-
In-
' addition,'4~ internally: identified issues were addressed.. The applicant dis-1 S
cussed the overall corrective action program for conduit supports including I
the as-built walkoowns, design validation approach, and modification programs.
Because of'the different phases of construction between Unit 1 and Unit 2 when 1
j the conduit support correcdve action program (CAP) was initiated, the-ap-1 1
proach used in the CAP for ccMuit supports.in Unit 1 varied from that of Unit 2, accordingly. The major Mifference between the Unit 1 and Unit 2 ap-
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proach was that in Unit 1, an assuilt validation program was conducted prior to design verification to confirm ahe conduit routing and support design as installed, whereas in Unit 2 (where conduit installadon was in the early stages when the CAP was established) a fully engineered program was established (i.e., conduit routing and support designs were developtd by EBASCO prior to L
installation).
Other variations in the Unit 1 and Unit ' design criteria used l
in the design verification program were established to account for the dif-ference in the types of conduit support designs existing in the respective units.
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-Sunsnary of 9/14/87 meeting !
The slides presented by the applicant describing the conduit support design activities and the resolutions to the generic technical issues are provided as Enclosure 2 to this meeting summary.
Following the presentation, the l-staff selected several reports of special studies and test programs
'(Enclosure 3) which~ provide the bases for the' acceptance criteria used in the i
' design verification activities for a more detailed review. Upon completion of 4
its review, the staff will report its findings on the conduit support corrective action program and on the acceptability'of,the resolution to the generic tech-
-nical issues'in a safety evaluation.
hLdLc -
David Terao, Mechanical Engineer Comanche Peak fro l,ect Division i
Office of Special orojects
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Enclosures:
l 1.
Meeting Notice j
List of Meeting Attendees t
2.
TV Electric ~ Slides 3.
List of Documents j
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See'next page 1
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U y +ff Summary of 9/14/87 meeting ;
The slides presented by the applicant describing the conduit support design activities and the resolutions to the generic technical issues are provided as Enclosure 2 to this meeting summary.
Following the presentation, the staff selected several reports of special studies and test programs-(Enclosure 3) which provide the bases for the acceptance criteria used in the design verification activities for a more detailed review. Upon completion of its review, the staff will report its findings on the conduit support corrective
-action program and on the acceptability of the resolution to the generic tech-nical issues in a safety evaluation.
David Terao, Mechanical Engineer Comanche Peak Project Division j
Office of Special Projects
Enclosures:
DISTRIBUTION 1.
Meeting Notice
~ Docket;.Filee CGrimes List of Meeting Attendees CPPD Reading PMcKee 2.
TV Electric Slides NRC PDR DTerao 3.
List of Documents Local PDR JLyons JKeppler/JAxelrad RWarnick cc: See next page OSP Reading CPPD-LA FMiraglia AVietti-Cook MMalloy OGC-Bethesda EJordan JPartlow ACRS(10) 4 CPPD:0S OSP AU:
D:0SP DT P :0SP f/AVietti-Cook JLylm CGr DT rao:cm g /7 /87 0/p/87 90/13/87 0/ /8 i
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W. G. Counsil Comanche ' Peak Steam Electric Station Texas Utilities Electric Company Units 1 and 2 V
Thomas G. Dignan, Jr.-
Asst. Director for Inspec. Programs -
Ropes & Gray.
Comanche Peak Project Division 225 Franklin Street U.S. Nuclear Regulatory Commission -
' Boston, Massachusetts 02110 P. O. Box 1029
}
Granbury, Texas-76048 l'
Robert A. Wooldridge.-Esq.
. Regional Administrator,-Region IV Worsham, Forsythe, Sampels 8 U.S. Nuclear Regulatory Commission Wooldridge 611 Ryan Plaza Drive, Suite 1000 2001 Bryan Tower, Suite 2500 Arlington, Texas 76011 Dallas, Texas 75201 Lanny A. Sinkin Mr. Homer C. Schmidt Christic Institute Director of Nuclear Services 1324 North Capitol Street Texas Utilities-Electric Company Washington,.D.C.
20002 Skyway Tower 400 North Olive Street, L.B. 81 Ms. Billie Pirner Garde, Esq.
Dallas, Texas 75201
. Government Accountability Project Midwest Office Mr. Robert E. Ballard, Jr.
104 East Wisconsin Avenue Director of Projects Appleton, Wisconsin 54911 Gibbs and Hill,'inc.
11 Penn Plaza
~i New York, New York 10001 David R. Pigott, Esq.
Orrick, Herrington &'Sutcliffe 600 Montgomery Street Mr. R. S. Howard San Francisco, California 94111 Westinghouse Electric Corporation P. O. Box 355 Anthony Z. Roisman, Esq.
Pittsburgh, Pennsylvania 15230 Suite 600 1401 New York Avenue, NW Renea Hicks, Esq.
Washington, D.C. 20005 Assista'nt Attorney General j Environmental Protection Division Robert Jablon P. O. Box 12548, Capitol Station Bonnie S. Blair Austin, Texas 78711 Spiegel & McDiarmid 1350 New York Avenue, NW Mrs. Juanita Ellis, President Washington, D.C. 20005-4798 Citizens Association' for Sound Energy 1426 South Polk George A. Parker, Chairman Dallas, Texas 75224 Public Utility Committee Senior Citizens Alliance Of Ms. Nancy H. Williams Tarrant County, Inc.
CYGNA Energy Services 6048 Wonder Drive 2121 N. California Blvd., Suite 390 Fort Worth, Texas 76133 Walnut Creek, CA 94596
1 L.-
l i.'G. Counsil
. Comanche Peak Electric: Station:
. Texas Utilities Electric CompanyL Units 1 and 2 l
cc:~
-Joseph F Fulbright Fulbright & Jaworski 1301 McKinney Street
. Houston, Texas 77010 L
Mr.L onald R. Woodlan-.
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D Texas Utilities Electric' Company Skyway Tower
' 400 North Olive Street, L.B. 81 j
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. Dallas, Texas' 75201 I
Mr. Jack Redding c/o Bethesda Licensing
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' Texas. Utilities Electric Company i
3 Metro Center, Suite 610-Bethesda, Maryland 20814 i
j William A. Burchette,.Esq.'
Counsel for Tex-La Electric Cooperative 1
of Texas fHeron, Burchette, Ruckert & Rothwell l
Suite.700 j
1025 Thomas Jefferson Street, NW-l Washington, D.C.
20007 James M. McGaughy
-l GDS Associates, Inc.
4 Suite 450 l
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-2525 Cumberland Parkway Atlanta, Georgia 30339 Administrative Judge Peter Bloch U.S. Nuclear Regulatory Commission
. Washington, D.C.
20555 Elizabeth B.. Johnson Administrative Judge l
Oak Ridge National Laboratory P. O. Box X, Building 3500 i
Oak Ridge, Tennessee 37830 Dr. Kenneth A. McCollom 1107 West Knapp Stillwater, Oklahoma 74075 Dr. Walter H. Jordan Administrative Judge 881 West Outer Drive Oak Ridge, Tennessee 37830
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i List of Attendees-I 9
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