ML19345C231
| ML19345C231 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 11/17/1980 |
| From: | Schwencer A Office of Nuclear Reactor Regulation |
| To: | Parris H TENNESSEE VALLEY AUTHORITY |
| References | |
| NUDOCS 8012040187 | |
| Download: ML19345C231 (2) | |
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i Mr. H. G. Parris MService 7
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Tennessee Valley Authority 500A Chestnut Street Tower II bcc: NSICS
- 5 Chattanooga, Tennessee 37401 TERAM 5
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Dear Mr. Parris:
SUBJECT:
PRESSURE CCNTAI!NENT II:TEGRATED LEAK RATE TEST Your letter of June 23, 1980 requested that the Sequoyah Nuclear Plant-(SNP),
Unit 2 not be required to perfem a preoperational reduced pressure contain-ment integrated leak rate test (CILRT). Since Appendix J to 10 CFR Part 50 cemits the option of perfcming either reduced pressure or peak pressure CIL'Ts, it is not necessary to perfom a preoperational reduced pressure CILRT.
Ycur sr0posal to perfom enly a peak pressure CILRT is acceptable and in accordance with appendix J.
You further requested that SNP, Unit 2 be allowed to perform the full pressure preccerational CILRT before ice is !caded into the ice condenser. This approach is acceptable since the absence of ice will not affect the validity of the C T LO.T.
It should be noted, however, that any modification or alteration -'ade to the pric'ary containment boundary after the completion of the' preoperational CILRT will require, in accordance with Appendix J to 10 CFR Part 50, an addi-tional Type A, B, or C test, as appropriate for the area affected by the modification.
Sincerely.
Original signed by A. Schwencer, Chief Licensing Branch flo. 2 Division of Licensing cc: See next page 801204057
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NicFORM 314 (9-76) NRCM 0240 DU.S. GOV ERNMENT P AINTING OFFICE 1979 289 369
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Mr. H. G. Parris Manager of Power i
Tennessee Valley Authcrity 500A Chestnut Street Tower II Chattanooga, Tennessee 37401 cc: Herbert S. Sanger, Jr., Esq.
General Counsel Tennessee Valley Authority 400 Commerce Avenue E 118 33 Knoxville, Tennessee 37902 Mr. H. N. Culver Tennessee Valley Authority 400 Commerce Avenue, 249A HBB Knoxville-, Tennessee 37902 Mr. Bob Faas Westinghouse Electric Corporation P. 0. Box 355 Pittsburgh, Pennsylvania 15230 Mr. Mark Bur:ynski Tennessee Valley a thority u
100 Chestnut Street Tower II.
Chattanooga, Tennessee 37a01 Mr. J. F. Cox Ter.nessee Valley Authority
' 200 Commerce Avenue, W10Cl31C Knoxville, Tennessee 37902 Resident Insoector/Sequoyah NPS c/o U.S. Nuclear Regulatory Commission P. O. Box 699 Hixson, Tennessee 37343
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A 27 800623 009 400 Chestnut Street Tower Il S.s June 23, 1980
- A MW Director of Nuclear Reactor Regulation Attention: Mr. A. Schwencer, Chief Light Water Raactors Branch No. 2 Division of Licensing U.S. Nuclear Regulatory Conanission Washington, DC 20555
Dear Mr. Schwencer:
In the Matter of the Application of
)
Docket No.50-32S Tenn.essee Valley Authority
)
TVA requests that Sequoyah Nuclear Plant (SNP) unit 2 be exempted from performing tse preoperational reduced pressure containment integrated leak rate test (CIRT) as required by Appendix J to 10 C71 Part 50.
A reduced pressure test was performed at SNP unit 1, and the results could not be correlated with the full pressure CII2.T.
This lack of correlation was attributed to the low pressures involved in testing an ice condenser containment. Furthernere, the SNP unit 1 technical specifications do not permit periodic CIU T at the reduced pressure.
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We fully expect the SNP ur.t 2 technical specifications to have a ad-41ar restriction. Thei4 fore, there is no need to establish a leakage correlation between ene full pressure and reduced pressure tests.
For ene reascas stated above, TVA requests an exe=ption frem the require-seats to perform a reduced pressure CILRT.
TVA also requests that SNP unit 2 be exempted from perfor=ing the CIMT afcar ice loading. By scheduling ice loading after the CILIT, TVA vill have additional construction scheduling flexibility and good potential for saving time and money. The actual ice loading operation will not alter the as-tested cont m eent pressure boundary. Further-nore, TVA does not expect the results of the pre-ice load CILRT to change significantly with the introduction of the ice mass. For chase reasons, TVA requests an exemption from the requirenants of Appendix J to 10 CFR Part 50 to perform the CICT for SNP unit 2 before ice loading.
Very truly yours, TENNESSEE VALLEY AUTHORITY L. M. Mills, Manager Nuclear Regulation and Safety DLL:MJB.ATK cc: ARMS, 6l.0 CST 2-C H. N. Culver, 249A HBB-K J. R. Calhoun, 1750 CST 2-C G. F. Dilworth, W10C126 C-K i
i W. T. Cottle, Sequoyah-NRC H. S. Sanger, Jr., E11333 C-K A. W. Crevasse, 401 UBB-C F. A. S:c:epanski, 417 UBB-C
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NUCLEAR REGULATORY COMMISSION 33&ij MSH WGTON, D. C. 20555 k Db.[f a
1 NOV 17 :e80 Cocket Nos. 50-327 t
and 0-328 Mr. H. G. Parris Manager of Power Tennessee Valley Authority 5C0A Chestnut Street Tower II Chattanooga, Tennessee 37401 Cear Mr. Parris:
SUBJECT:
PRESSURE CONTAINMENT INTEGRATED LEAX RATE TEST Your letter of June 23, 1980 requested that the Sequoyah Nuclear Plant (SNP),
'Jnit 2 not be recuired to perform a oreuperational reduced pressure contain-ment integrated leak rate test (CILRT). Since Appendix J to 10 CFR Part 50
- ermits the option of :erforming either reduced pressure or peak pressure CILRTs, it is not necessary to perform a preccerational reduced cressure CILRT.
Your procosal to perform only a peak pressure CILRT is acceptable and in accordance with Apcendix J.
You further requested that SNP, Unit 2 be allowed to perfom the full pressure I
preoperational CILRT before ice is loaded into the ice condenser. This approach is acceptable since the absence of ice will not affect the validity of the C!LRT.
It should be noted, however, that any modification or alteration made io the primary containment boundary after the completion of the preoperational LILRT will require,-in accordance with Apoendix J to 10 CFR Part 50, an addi-tional Type A, B, or C test, as appropriate for the area affected by the modificaticn.
Sincerely, n
A. Schwencer, Chief Licensing Branch f:o. 2 Division of Licensing cc:
See next page 4
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a Mr. H. G. Parris Manager of Power Tennessee Valley Authority 500A Chestnut Street Tower II Chattanooga,' Tennessee 37401 cc: Herbert S. Sanger, Jr., Esq.
General Counsel Tennessee Valley Authority 400 Commerce Avenue E llB 33 '
Knoxville, Tennessee 37902
~
Mr. H. N. Culver Tennessee Valley Authority 1
200 Commerce Avenue, 249A HBB Knoxville, Tennessee 37902 Mr. Sob Faas Westinghouse Electric Corporation i
P. O. Box 355 Pittsburgh, Pennsylvania 15230 4
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.l Mr.. Mark Bur:ynski Tennessee Valley Authority 100 Chestnu Street Tower :
Cha:tanooga. Tennessee 37201 4
Mr. J. F. Cox Tennessee Valley Authority 400 Commerce Aver.ue, W10Cl31C Knoxville, Tennessee 37902 Resident Inspector /Secuoyah NPS c/o U.S. Nuclear Regulatory Commission P. O. Box 699 Hixson,' Tennessee 37343 1
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June 23, 1980 Director of Nuclear Reactor Regulation Attention: Mr. A. Schwencer, Chief Light Water Reactors Branch No. 2 Division of Licensing U.S. Nuclear Regulatory Commission Washington, DC 20555
Dear Mr. Schwencer:
1 In the Matter of the Application of
)
Docket No.50-32S Tennessee Valley Authorit/
)
l IVA requests that Sequoyah Nuclear Plant (SIG) unit 2 be exempted from performin;; tue preoperational reduced pressure containment integrated i
leak race test (CIL2T) as required by Appendix J to 10 C71 Part 30.
A reduced pressure test was performed at SNP unit 1, and the results could not be correlated with the full pressure CIL27. This lack of correlation was attributed to the low pressures involved in testing an ice condenser containment. Fur;hermore, the SIG unit 1 cechnical specifications do not permit periodic CILIT at the reduced pressure.
]'
l We fully expact the SNP unit 2 technical specifications to have a i s1=11ar restriction. Therefore, there is no need to establish a leak. age correlation between the full pressure and reduced pressure tests.
For ene reasons stated above, TVA requests an exe=ption from the require-nents to perform a reduced pressure CILIT.
TVA also requests that SNP unit 2 be exempted from performing the CILRT afcar ice loading. By scheduling ice loading afcar the CILIT, T7A will have additional construction scheduling flexibility and good potential for saving time and money. The actual ice loading operation will not alter the as-i;ested containment pressure boundary. Further-nore, TVA does not expect the results of the pre-ice load CILRT to change significantly vich the in.roduction of the ice mass. For these reasons TVA requests an exemption from the requirements of Appendix J to 10 CFR Parr 50 to perform the CILIT for SNP unic 2 before ice loading.
Very truly yours, TENNESSEE VALLEY AUTHORITY L. M. Mills, Manager Nuclear Regulation and Safscy
- )LL:MJ3: ATK
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cc: ARMS, 640 CST 2-C H. N. Culver, 249A HBB-K J. R. Calhoun, 1750 CST 2-C G. F. Dilworth, W10C126 C-K W. T. Cottle, Sequoyah-NRC H. S. Sanger, Jr., E11333 C-K A. W. Crevasse, 401 UBir C
- 7. A. Szczepanski, 417 U33-C f0
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