ML20236E950

Summary of 870825 Meeting W/Util & S&W in Cherry Hill,Nj Re Staff Technical Review of Amend 61 of Util FSAR Re Changes to Piping Design Criteria.Attendee List Encl

ML20236E950
Person / Time
Site:	Comanche Peak
Issue date:	10/02/1987
From:	Terao D NRC OFFICE OF SPECIAL PROJECTS
To:	NRC OFFICE OF SPECIAL PROJECTS
Shared Package
ML20236E952	List: ML20236E950 ML20236E957
References
NUDOCS 8710300078
Download: ML20236E950 (5)

Text

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of" n NUCLEAR REGULATORY COMMISSION W ASHINGTON, D. C. 20555

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\ ..... pf October 2, 1987 Docket Nos. 50-445 and 50-446 i APPLICANT: Texas Utilities Electric Company (TV Electric)

FACILITY: Comanche Peak Steam Electric Station, Units 1 and 2

SUMMARY

OF MEETING ON AUGUST 25, 1987 - CPSES FSAR CHANGES PIPING DESIGN On August 25, 1987 the NRC staff and its consultants met with representatives of TV Electric (Applicant) and their contractors at the offices of Stone & Webster Engineering Corporation (SWEC) in Cherry Hill, New Jersey. The meeting notice and a list of meeting attendees are provided as Enclosures 1 and 2, respectively.

The purpose of the meeting was to discuss the staff technical review of Amendment 61 of the Comanche Peak Steam Electric Station (CPSES) Final Safety Analysis Report (FSAR) related to changes to the piping design criteria. The changes to the piping design criteria previously used by Gibbs & Hill, Inc.

reflected the alternative analytical methods used by SWEC in its piping requali-fication effort and were initially discussed in a meeting held in the NRC (Bethesda) offices on August 28, 1986.

The staff reviewed the technical acceptability of the FSAR changes and the use of specific ASME Code Cases and later Code provisions as permitted in paragraph NA-1140(f) of the ASME Boiler & Pressure Vessel Code,Section III. The staff review of the use of ASME Code Cases and later Code provisions focused primarily on the technical justifications provided in the applicant's report entitled,

" Documentation of ASME III NA-1140 Review for Piping and Supports," Revision 1, dated August 10, 1987 (Enclosure 3). This report documented the applicant's review performed in order to ensure that the use of design criteria in CPPP-7*

is in conformance with NA-1140(f) of the Code and, in particular, that all related Code requirements are met. The Code of Record for CPSES piping is the ASME Boiler and Pressure Vessel Code Section III, 1974 Edition, including Sunrner 1974 Addenda Subsections NC/ND. The Code of Record for CPSES pipe supports is the 1974 Edition including Winter 1974 Addenda Subsection NF.

The representatives from SWEC presented an overview of the piping design criteria changes which is provided in Enclosure 4 to this memorandum.

As a result of discussions with the applicant, the staff identified several unresolved items where additional information and further staff review is required as discussed below.

• CPPP-7, " Design Criteria for Pipe Stress and Pipe Supports," Revision 3, dated February 23, 1987.

8710300078 871002 PDR ADOCK 05000445 A PDR

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- 1. Flexibility and Stress Intensification Factors (1983 Edition-Winter 1984 Addenda Subparagraph "NC/ND-3673.2(b)")

The SWEC piping stress analysis used the later Code provision for stress intensification factors (SIF) for branch connections, butt welds, and socket welds. An independent review by S. E. Moore was documented in a paper entitled, "ASME Code Stress Intensification Factors for Comanche Peak Steam Electric Station Units 1 and 2." The staff has not yet completed its review of the S. E. Moore paper. Upon completion of that review, the staff will discuss the acceptability of the paper in a safety evaluation.

2. Overall Review of Related Code Requirements The staff will continue its review of related requirements affected by later Code provisions.

Upon completion of review in this area, the staff will proviae its conclusions in a safety evaluation.

3. In_tervening Elements in Relation to Jurisdictional Boundaries (1980 Edition Paragraph NF-1133)

This Code provision allowed non-support items in the component support load path when designed to other standards. The staff required additional information about where this Code provision was applied and how the Owner ensured that the intervening elements are adequately designed.

4. Minimum Required Hydrostatic Test Pressure (1974 Edition-Winter 1975 Addenoa Paragraph NC-6221)

The Winter 1975 Addendum revised the minimum post-installation hydro-static test pressure from 1.5 times to 1.25 times the design pressure.

The staff questioned how and where this later Code provision would be implemented.

5. Design Requirements for Welds on Linear Supports (1980 Edition-Winter 1982 Addenda Paragraph NF-3324.5)

The staff raised a question concerning design requirements for welds on plate-and-shell supports. SWEC stated that plate-and-shell supports'are not used in pipe support design. The staff will follow-up this item as part of its implementation review.

6. Lamellar Tearing (1977 Edition-Winter 1978 Addenda Paragraph XVII-2211, Paragraph NF-3321.1, Paragraph NF-3226) 1 I

This Code provision had been revised to reduce the potential for Lamellar tearing. The applicant controls the potential for lamellar tearing ,

through ultrasonic examinations in susceptible welds. The staff requested i three (3) examples of moment limiting components where UT had been per-formed and d M UT results.

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7. Building Settlement Loads on Piping The FSAR Table 3.98-1B was revised to delete " single non-repeated anchor

. movements due to building settlement." The staff requested technical justification. for deleting this loading condition.

The applicant is in the process of responding to the above unresolved staff

. questions. The staff will conduct a follow-up public meeting with the applicant to discuss.their responses. The resolutions to these items will be addressed in a future audit report or safety evaluation.

l Original signed by  :)

l David Terao Comanche Peak Project Division )

Office of Special Projects

Enclosures:

1. Meeting Notice

2. List of Meeting Attendees

3. Report entitled " Documentation of ASME III NA-1140 Review for Piping and Supports,"

Revision 1, dated August 10, 1987 ~

4. Meeting Agenda dated August 25, 1987 cc: See next page bec: .D. Landers, TES R. Hookway, TES '

G. Moy, TES Distribution:

'Upttet: File 4 NRC PDR LPDR OSP Reading File ]

CPPD Reading File l J. Keppler/J. Axelrad t

C. Grimes P. McKee J. Lyons R. Warnick D. Kelly A. Vietti-Cook M. Malloy

.CPPD-LA

'0GC-Bethesda F.'Miraglia E. Jordan J. Partlow

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NAME :DTerao:cb :AVietti-C k :HM lloy :JLyoq  :  :

...... : __ ............:._____ ....___:..____________:_____.________:_.. _________ :...____...... j DATE :9/2787 :9/Jg/87 :9/>887 :9/f8/87  :  :

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n W. G. Counsil Comanche Peak Steam Electric Station Texas Utilities Electric Company Units 1 and 2 cc:

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 & V.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 l 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 Carde, 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 New York, New York 10001 David R. Pigott, Esq.

Orrick, Herrington & Sutcliffe 4 600 Montgomery Street )

Mr. R. S. Howard San Francisco, California 94111

. Westinghouse Electric Corporation P. O. Box 355 Anthony Z. Roisman, Esq. 1 Pittsburgh, Pennsylvania 15230 Suite 600 l 1401 New York Avenue, NW Renea Hicks, Esq. Washington, D.C. 20005 Assistant Attorney General Environmental Protection Division Robert Jablon P. O. Box 12548, Capitol Station Bonnie S. Blair Austin, Texas 78711 Spiegel & McDiarmid l 1350 New York Avenue, NW 1 Mrs. Juanita Ellis, Piv.sident Washington, D.C. 20005-4798 Citizens Association for Sound Energy 1426 , South Polk George A. Parker, Chairman Dallt,'s , Texas 75224 Public Utility Committee J Senior Citizens Alliance Of

, Ms. Nancy H. Williams Tarrant County, Inc.

• CYGhA Energy Services 6048 Wonder Drive 21'l N. California Blvd., Suite 390 Fort Worth, Texas 76133 f Wal,' nut Creek, CA94596

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,, W.'G Counsil Comanche Peak Electric- Station '{

Texas Utilities Electric Company Units 1 and 2  ;

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Joseph F. Fulbright l Fulbright & Jaworski 1301 McKinney Street Houston, Texas 77010 i

Mr. Donald R. Woodlan Texas Utilities Electric Company Skyway Tower 400 North Olive Street, L.B. 81 i Dallas . Texas 75201 Mr. Jack Redding l c/o Bethesda Licensing j Texas Utilities Electric Company  ;

I 3 Metro. Center, Suite 610 )

Bethesda, Maryland 20814 William A. Burchette, Esq.

Counsel for Tex-La Electric Cooperative i of Texas {

Heron, Burchette, Ruckert & Rothwell l Suite 700 l 1025 Thomas Jefferson Street, NW ,

j Washington, D.C. 20007 James M. McGaughy GDS Associates, Inc.

Suite 450 2525 Cumberland Parkway Atlanta, Georgia 30339 Administrative Judge Peter Bloch U.S. Nuclear Regulatory Commission Washington, D.C. 20555 Elizabeth B. Johnson Administrative Judge Oak Ridge National Laboratory P. 0. Box X, Building 3500  :

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 1

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ENCLOSURE 1

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UNITED STATES

! n NUCLEAR REGULATORY COMMISSION

$ W ASHINGTON, D. C. 20555 h

/ August 17, 1987

%, . . . . . f Docket Nos.: 50-445/446 MEMORANDUM FOR: Christopher I. Grimes, Director Comanche Peak Project Division Office of Special Projects THRU: Hans E. Schierling, Assistant O' rector for Projects j i ComanchePeakProjectDivisionj9 Office of Special Projects FROM: Annette Vietti-Cook, Project Manager Comanche Peak Project Division Office of Special Projects

SUBJECT:

FORTHCOMING MEETING WITH TV ELECTRIC AND STONE & WEBSTER Date & Tine: Tuesday, August 25, 1987 9:00 a.m.

Location: Stone & Webster Engineering Corporation Cherry Hill Operations Center 3 Executive Campus Cherry Hill, New Jersey

Purpose:

To discuss the design criteria in support of Final Safety Analysis Report Amendment 61 changes for large bore piping

Participants:

NRC Applicant E Terao J. Finneran, et al.

Consultants (Teledyne) xm f r. C e K ')

Annette Vietti-Cook, Project Manager Comanche Peak Project Division Office of Special Projects j i

Hembers of the public planning to attend should contact:

A. Vietti-Cook or M. Malloy (301)492-4555 (301)492-7624 cc: See next page ze ,

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- ENCLOSURE 2-CPSES FSAR CHANGES RELATED TO PIPING' DESIGN CRITERIA MEETING ON AUGUST 25, 1987  ;

List of Attendees 4 TV Electric B. 5. Dacko S. W. Harrison J. W. Muffet D. M. Rencher SWEC D . Ali j D. M. Bonner 1 L. L. Dietrich j E. Evans M. I. Gilman D. M. Hernon R. Klause E. F. Lewis J. H. MacKinnon F. Ogden E. J. Siskin W. Wang ..

Tenera

-E. A. Was TES(NRCConsultant)

C Hookway ,

i D. F. Landers G. Moy-  ;

NRC {

E Terao 1

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