ML17037B908

Letter Regarding Mark II Containments - Request for Additional Information and Enclosed Topical Report: NEDM-20988, Revision 2 Test Plan - December, 1976

ML17037B908
Person / Time
Site:	Nine Mile Point
Issue date:	02/23/1978
From:	Stolz J Office of Nuclear Reactor Regulation
To:	Sherwood G General Electric Co
References
NEDM-20988
Download: ML17037B908 (24)

Text

FEB 33 D",stribution:

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NRC PDR 1 . R. DeYoung I. Peltier J. Knight bcc:

cal PDR (8) D. Vassallo E. Hylton R. Tedesco J. Buchanan, NSIC ocket File (8) F. Williams R. Mattson 'H. Denton T. Abernathy, TIC LWR-1 File J. Stolz D. Ross V. Moore ACRS-(16)

R. Boyd R. Vollmer General Electric Company M. Ernst ATTfi: Dr. G. G. Sherwood, Manager W. Gammill Safety and Security ELD 175 Curtner Avenue San Jose, California 95114

SUBJECT:

MARK II CONTAINNENTS - REQUEST FOR ADDITIONAL INFORMATION Gentlemen:

As a result of our on going review of your report, NEDft-20988, "Caorso Relief Valve Loads Tests - Test Plan," we have the following comments and significant areas of conoern.

1. Effects of leaking SRV on quencher loads has been identified as an area of concern. The Qaorso test plan, however, has not addressed this concern. It is our position that tests on leaking SRV should be conducted and that a test matrix addressing this concern should be provided for our review.

2. The test matrix shows that the parameters of interest will be repeated only once. We believe that this is not sufficient to demonstrate the repeatability of test data. We, thevefore, suggest that additional tests be conducted to demonstrate repeatability.

Et should be noted that our review to date has not considered fluid/

structure interattion effects.

Enclosed is a request for additional information. We believe you were advised of this needed information in July 1977.

Sincerely, OdghmI Signing aloha P. Qah John F. Stolz, Chief Light Hater Reactors Branch No. 1 Division of Project fianagement

Enclosure:

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FEB 23 1978 Niagra Mohawk Power Corporation ATTN: fir. Jerald K. Rhode Vice President Engineering 300 Erie Boulavard West Syracuse New York 13202 Eugene B. Thomas, Ji .

LeBoeuf, Lamb, Leiby II MacRae 1757 N Street, N. W.

Washington, D. C. 20036 Anthony Z. Roisman, Esq.

Roisman, Kessler 8 Cashdan 1'025 15th Street, N. W.

Washington, D. C. 20036 Mr. Richard Goldsmith Syracuse University College of Law E. I. White Hall Campus Syracuse, Nevi York 13210 '

~ K, DeBoer, Director Technological Development Programs New York State Energy Office Swan Street Building Core 1 - 2nd Floor Empire State Plaza Albany, New York 12223

0 A 1

FEB 23 1978 Washington Public Power Supply System ATTN: Hr. Kneil 0. Strand Managing Director 3000 George Washington Way Richland Washington 99352 Joseph B. Knotts, Jr., Esq.

Oebevoise & Liberman 700. Shor'cham Building 806 Fifteenth Street, N. W.

Washington, D. C. 20005 Richard Q. Quigley, Esq.

Washington Public Power Supply System P. 0. Box 968 Richland, Washington 99352

Pennsylvania Power and Light Company ATTN: Hr. Norman W. Curtis Vice President - Engineering and Construction 2 North Ninth Street Allentown, Pennsylvania 18101 Hr. Earle H. Head Project Manager Pennsylvania Power & Light Company 2 North Ninth Street Al'lentown, Pennsylvania 18101 Gerald Charnoff, Esq.

Shaw, Pi ttman, Potts, Trowbridge

& Madden 1800 H Street, N. W.

Washington, D.'. 20036 Hr. William E. Barberich Licensing Engineer Pennsylvania Power & Light Company 2 North Ninth Street Allentown, Pennsylvania 18101 Mr. Robert J. Shovlin, Project, Manager'usquehanna Pennsylvania Power & Light Company 2 North Ninth Street Allentown, Pennsylvania .18101 Hubert Barnes, Esq.

Pennsylvania Power & Light Company 901 Hamilton Street Allentown, Pennsylvania 18101 Edward H. Nagel, Esquire General Counsel and Secretary Pennsylvania Power & Light Company 2 North Ninth Street Allentown, Pennsylvania 18101

FEB 23 $ 978 t

Commonwealth Edison Company ATTN:, Nr. Byron Lee, Jr.

Vice President P. 0. Box 767 Chicago, Illinois 60690 Richard E. Powell, Esq.

Isham,.Lincoln 8 Beale One First National Plaza 2400 Chicago, Illinois 60670

Northern Indi ana Publ i c Ser vi ce Company FE8 23 1978 ATTN: Mr. H. P. Lyle, Vice President Electric Production 5 Engineering 5265 Holman Ave.

'ammond, Indiana 46325 Meredith Hemphill, Jr. Esq.

Assistant General Counsel Bethlehem Steel Corporation Martin Tower Bethlehem, Pennsylvania 18016 William H. Eichhorn, Esq.

Eichhorn, /1orrow 8 Eichhorn 5243 Hohman Avenue Hammond, Indiana 46320 a

Edward W. Osann, Jr., Esq.

Wolfe, Hubbard, -Leydid, Voit & Osann, Ltd.

Suite 4600 One IBM Plaza Chicago, Illinois 60611 Marvin N, Berm, Esq.

Special Assistant Attorney General 134 North LaSalle Street Suite 2222 Chicago, Illinois 60602 Robert J. Vollen, Esq.

109 North Dearborn Street Chicago, Illinois 60602

FEB 23 1978

'The Cin'cinnati Gas & Electric Company David B. Fankhauser, PhD ATTN: Mr. Farl A. Borgmann 3569 Nine Mile Road Vice President - Engineering Cincinnati, Ohio 45230 P. 0. Box 960 Cincinnati, Ohio 45201 Thomas A. Luebbers, Esq.

Cincinnati City Solicitor Mr. William J. Moran Room 214 - City Hall General Counsel Cincinnati, Ohio 45202 The Cincinnati Gas & Electric Co.

P. 0. Box 960 Troy B. Conner, Esq..

Cincinnati, Ohio 45201 Conner, Moore & Cober 1747 Pennsylvania Ave. N. W.

Mr. William G. Porter, Jr. Washington, D. C. 20006 Porter, Stanley, Arthur, & Platt 37- West Broad Street Columbus, Ohio 43215

. Mr. Robert fli 11en, Chairman of the Board & Chief Executive Officer The Dayton Power & Light Company PE 0. Box 1034 Dayton, Ohio '5401 fir. J. Robert Newlin, Counsel The Dayton Power & Light Company P. 0. Box 1034 Dayton, Ohio 45401 Mr. Stephen Schumacher Miani Valley Power Project P. 0. Box 252 Dayton,. Ohio 45401 Ms. Augusta Price 601 Stanley 'Avenue Cincinnati, Ohio 45226 Mr. James D. Flynn Manager, Licensing & Environmental Affairs The Cincinnati Gas & Electric Company P. 0. Box 960 Cincinnati, Ohio 45201 Mr. J. P. Fenstermaker Senior Vice President - Operations Columbus & -Southern Ohio Electric Co.

215 North Front Street Columbus, Ohio 43215

FEB 23 1978 Philadelphi Electric Company Eugene J. Bradley ATTN; Mr. Fdward G. Bauer, Jr. Philadelphia Electric Company Vice President and General Associate General Counsel Counsel 2301 Market Street 2301 Market Street Philadelphia, Pennsylvania 19101 Philadelphia, Pensylva'nia 19101 Troy B. Conner, Jr. Ewq.

Conner, Moore & Corber 1747'Pennsylvania Avenue, N. W.

Washington, D.. C. 20006 W. William Anderson, Esq.

Deputy Attorney General Room 512, Main Capitol Building Harrisburg, Pennsylvania 17120 Frank R. Clokey, Esq.

Special Assistant Attorney General Room 218, Towne House Apartments P. 0. Box 2063 Harrisburg, Pensylvania 17105 Honorable Lawrence Coughlin House of .Representatives Congress of the United States Washington, D. C. 20515 Roger B. Reynolds, Jr., Esq.

324 Swede Street Norristown, Pennsylvania 19401 Willard C. Hetzel, Esq.

312 main Street East Greenville, Pennsylvania 18041 Lawrence Sager, Esq.

Sager 8 Sager'ssociates 45 Hi gh Street Pottstown, Pennsylvania 19464 Joseph A. Smyth Assistant County Solicitor County of Montgomery Courthouse

'Norristown, Pennsylvania 19404

FEB 23 1978 Long Island Lighting Company ATTN:- Mr. And> ew W. Wofford Vice President 175 East Old Country Road Hicksvi lie, New York 11801 Edward H. Barrett, Esq.

General Counsel Long Island Lighting Company 250 Old Country Road Mineola, New York 11501 Edward J. Walsh. Esq.

General Attorney Long Island Lighting Company 250 Old Country Road Mineola, New York 11501 Hr. Thomas Burke Project Manager Shoreham Nuclear Power Station P. 0. Box 618 Wading River, New York 11792 Director, Technical Development Programs State of New York Energy Office ~

lf Agency Building 2 Empire State Plazq Albany, New York 12223 Haward L. Blau Blau and Cohn, P. C.

380 North Broadway jericho, Nevi York 11753 Irving Like, 'Esq.

Reilly, Like.and Schnieder 200, West Main Street Babylon, New York 11702 HUB Technical Associates 366 California Avenue Suite 6 Palo Alto, California 94306

FEB 23 1978 Request for Additional Information General Electric Company Topical Report: NEON-20988, Revision 2 Test Plan - December, 1976

1. Effects of a leaking SRV on quencher loads has been identified as an area of concern. The Caorso I test plan, however, does not address this concern. It is our position that tests on a leaking SRV should be conducted. Therefore, a test plan considering a leaking SRV should be provided 'for our review.

2. The Caorso test matrix indicates that most of the parameters of interest will be repeated only once. Tests perfor'med either for ramshead (squad City and Nonticello) or for quencher (NEDE-11314-08) exhibited a great degree of data scatter. Th'erefore, we believe that the current Caorso test matrix is insufficient to determine the repeatabi lity of the test data. Me recommend additional tests be conducted for first actuation of a SRV and subsequent actuations of the same SRV to demonstrate r epeatability. The number of tests should result in test data with

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statistical'significance.

3. Based on our evaluation of previous SRV test data, we find that the SRV discharge time and duration between first actuation and subsequent actuation influence the quencher load due to subsequent actuation.

Therefore, provide the value and the basis for the selection of the times for the Caorso tests.

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~F8 83 1978

4. Page 4-6 states that a complete understanding of the subsequent actuation effect requires data on pool temperature in the vicinity of the quencher, pipe temperature and pressure following valve closure, flow rate of air through the vacuum breaker and dynamics of back flow of water. We agree that the air temperature history inside the pipe could be important. However, insufficient information has been given in the test plan regarding the measurement of air temperature in the pipe. Clarify. what measurements or calculations wi 11 be made to 'monitor this. temperature.

5. The sensor failure rate was found to be quite high in the Monticello Plant test program. Sensors of the .same manufacturer model used in the Monticello will also be used in the Caorso.. In light of this experience, we .believe that redundant instrumentation is needed in critical areas. For instance, redundant sensors should be provided in the following locations:

a. The vicinity of quencher A and the place by which combined loads from multiple SRV's actuation will be determined.

'b. SRV line between elevation 51.612 and 45.770. In addition, level probes should be added between Ll and L12.

J FFR 28 1978 4 ~

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6. Submerged structure loads have been identified as a primary'esijn load for the Mark II containment. Me believe that the ana1ytical program indicated in the Mark II owner group meeting which was held on February 16 and 17, 1977, is insufficient to support the design loads for submerged structure without experimental data.

Therefore, we recommend that additional pressure sensors should be installed on support columns and downcomers to measure the drag load during SRY operation.

7. Provide the locations for pressure sensor's Nos . 19, 23, 35, 36 and 37.

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