ML20216E956

Forwards SE Authorizing Licensee ,As Suppl by 970702 Request for Relief RR-V-11 from Certain Requirements of ASME Code IST of Plant S/Rvs

ML20216E956
Person / Time
Site:	Hatch
Issue date:	09/05/1997
From:	Berkow H NRC (Affiliation Not Assigned)
To:	Sumner H SOUTHERN NUCLEAR OPERATING CO.
Shared Package
ML20216E960	List: ML20216E956 ML20216E967
References
TAC-M99485, TAC-M99486, NUDOCS 9709110115
Download: ML20216E956 (4)

Text

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2 NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 30666 0001

...../ September 5, 1997 Mr. H. L. Sumner, Jr.

Vice President - Nuclear Hatch Project Southem Nuclear Operating Company, Inc.

Post Office Box 1295 c Birmingham, Alabama 35201-1295

SUBJECT:

REQUEST FOR RELIEF RELATED TO REQUEST RR V 11 REGARDING INSERVICE TESTING OF SAFETY / RELIEF VALVES - EDWIN 1. HATCH NUCLEAR PLANT, UNITS 1 AND 2 (TAC NOS. M99485 AND M99486)

Dear Mr. Sumner-By letter dated January 7,1997, as t,upplemented by letter dated July 2,1997, you submitted a Request for Relief RR-V-11 from certain requirements of the American Society of Mechanical Engineers (ASME) Code inservice testing of plant safety / relief valves (S/RVs).

Specifically, relief is requested from the testing requirements of Appendix 1, paragraph I 3.4.1(d), of ASME Code-1995, which requires stroke testing of the S/RV main stages after being ma3ntained or refurbished in place, removed for maintenance or testing, or both, and reinstalled. As an ahmative to the testing required by ASME OM Code-1995, you propose to exercise the S/RVs before reactor steam is generated.

The staff has completed its review and evaluation of the information provided in your submittals as detailed in the enclosed Safety Evaluation. The staff concludes that the ASME Code requirement to perform in situ stroke testing of the S/RVs may contribute to undesirable S/RV leakage and could result in spurious actuation of the valves during power operation /

and/or failure to reseat, increase use of residual heat removal for suppression pool cooling, decrease generating capacity, and increase radiation hazard. The proposed attemative testing method would provide periodic verification of all of the individual S/RV components,

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which are currently being tested except that some tests are to be performed a instead of in situ with reactor steam.

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l Mr. H. L. Sumner, Jr. - September 5,1997 I

Based on the information provided, your attemative to ASME OM Code-1995 requirements is authorized pursuant to 10 CFR 50.55a(a)(3)(ii). The staff has determined that compliance with the applicable Code requirements would result in hardship or unusual difficulty without a compensating increase in the level of quality and safety.

Sincerely, ORIGINAL SIGNED BY:

Herbert N. Berkow, Director Project Directorate 11-2 Division of Reactor Projects - 1/11 Office of Nuclear Reactor Regulation Docket Nos. 50-321 and 50-366

Enclosure:

Safety Evaluation

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cc w/enet: See next page Distribution:

- Docket Fiie LBerry PUBLIC NLe PD 11-2 Rdg. THarris (e-mail TLH3 - SE)

BBoger OGC JZwolinski - GHill (4)

HBerkow MTschiltz, EDO JJohnson, Rll PSkinner, Ril GHammer To receive a copy of this document, indicate in the box: "C" = Copy without attachmentlenclosure "E" =

Crpy with attachment / enclosure "N" = No copy OFFICE PM:PDil-2 g -l LA:PDil"2h 3

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NAME NLe:cn T(fu t, Berry ) N g//,g/,,,,,, ,, HEJerkoNl /

DATE {, / fj/97 h/$/97 \ f Q /97 G y /97 / /97 / /97 JOCUMENT NAME: G:\HATCHTSRV.RR OFFICIAL RECORD COPY

Mr. H. L. Sumner, Jr. Based on the information provided, your attemative to ASME OM Code-1995 requirements is authorized pursuant to 10 CFR 50.55a(a)(3)(ii). The staff has determined that compliance with the applicable Code requirements would result in hardship or unusual difficulty without a compensating increase in the level of quality and safety.

Sincerely, i

H rt>ert N. Berkow, Director Project Directorate 11-2 Division of Reactor Projects - 1/il Office of Nuclear Reactor Regulation Docket Nos. 50-321 and 50-366

Enclosure:

Safety Evaluation cc w/enci: See next page i

i .

Edwin 1. Hatch Nuclear Plant cc:

Mr. Emeat L. Blake, Jr. Charles A. Patrizia, Esquire Shaw, Pittman, Potts Paul, Hastings, Janofsky & Walker and Trowbridge 10th Floor 2300 N Street, NW. 1299 Pennsylvania Avenue Washington, DC 20037 Washington, DC 20004 9500 Mr. D. M. Crowe Chairman Manager, Licensing Appling County Commissioners Southem Nuclear Operating County Courthouse Company, Inc. Baxley, Georgia 31513 P. O. Box 1295 Birmingham, Alabama 35201-1295- Mr. W. G. Harriston,111 President and Chief Executive Resident inspector ONicer U.S. Nuclear Regulatory Commission Southem Nuclear Operating 11030 Hatch Parkway North Company, Inc.

Baxley, Georgia 31513 P. O. Box 1295 Birmingham, Alabama 35201-1295 Regional Administrator, Region ll U.G. Nuclear Regulatory Commission Mr. J. D. Woodard Atlanta Federal Center Executive Vice President 61 Forsyth Street, SW, Suite 23T85 Southem Nuclear Operating Atlanta, Georgia 30303 Company, Inc.

P. O. Box 1295 Mr. Charles H. Badger. Birmingham, Alabama 35201-1295 Office of Planning and Budget Room 610 Mr. P. W. Wells 270 Washington Street, SW. . General Manager, Edwin 1. Hatch

. Atlanta, Georgia 30334- Nuclear Plant i Southem Nuclear Operating

- Harold Rehels, Director -Company, Inc.

Department of Natural Resources -

P. O. Box 439 i

- 205 Butler Street, SE., Suite 1252 Baxley,' Georgia 31513

. Atlanta, Georgia 30334 Mr. R. D. Barker Steven M.- Jackson - Program Manager Senior Engineer - Power Supply Fossil & Nuclear Operations Municipal Electric Authority - Oglethorpe Power Corporation of Georgia 2100 East Exchange Place

-1470 Riveredge Parkway, NW P. O. Box 1349 Atlanta, Georgia 30328-4681 Tucker, Georgia 30085-1349 Heinz Mueller (5)

Environmental Review Coordinator -

345 Courtland Street, NE Atlanta, Georgia 30365

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