ML20203L960

Application for Amend to License NPF-5,changing Tech Specs to Update Dummy Load Profiles for Testing of Emergency Battery Loading Conditions for Postulated Accident Conditions.Description of Changes Encl.Fee Paid

ML20203L960
Person / Time
Site:	Hatch
Issue date:	08/19/1986
From:	Beckham J GEORGIA POWER CO.
To:	Muller D Office of Nuclear Reactor Regulation
Shared Package
ML20203L964	List: ML20203L960 ML20203L966
References
0674C, 674C, SL-1066C, TAC-62744, NUDOCS 8609020101
Download: ML20203L960 (5)

Text

Gec g a P0ner Companj 333 Pedmor! Avenue

= Atlad Georg a 30308 Telephon., 404 526-7TO Mung Address Po:J O'bce i30x 4645 Manti Geo g a 3030J Georgia Power

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J. T. Beckhara, Jr.

Vice PreMert and General Manag."r N"*eG'"a*" SL-1066c 0674L August 19, 1986 Director of Nuclear Reactor Regulation Attention: Mr. D. Muller, Project Director BWR Project Directorate No. 2 Division of Boiling Water Reactor Licensing U. S. Nuclear Regulatory Commission Washington, D. C. 20555 NRC DOCKET 50-366 OPERATING LICENSE NPF-5 EDWIN I. HATCH NUCLEAR PLANT UNIT 2 REQUEST TO REVISE TECHNICAL SPECIFICATIONS BATTERY LOAD TESTING PROFILES Gentlemen:

In accordance with the provisions of 10 CFR 50.90, as required by 10 CFR 50.59(c)(1), Georgia Power Company (GPC) hereby proposes changes to the Technical Specifications, Appendix A to- Operating License NPF-5 for Plant Hatch Unit 2.

The proposed change would update the dummy load profiles for station battery testing provided in Technical Specification 4.8.2.3.2.d.2. The dummy load profiles, which represent emergency battery loading conditions for postulated accident conditions, have changed due to plant modifications.

The Plant Review Board and the Safety Review Board Subcommittee have reviewed the proposed changes.

We request NRC approval of this change within 120 days of the submittal date in order to allow incorporation into plant procedures and use of the revised load profiles for battery surveillances during the 1987 Unit 2 refueling cutage.

Enclosure 1 provides detailed descriptions of the proposed changes and the bases for the changes.

Enclosure 2 details the basis for our determination that the proposed changes do not involve a significant hazards consideration.

8609020101 860819 PDR ADOCK 05000366 P PDR

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GeorgiaPower A -

Attention: Mr. D. Muller, Project Director BWR Project Directorate No. 2 Director of Nuclear Reactor Regulation August 19, 1986 Page Two Enclosure 3 provides page change instructions for incorporating the proposed changes into the Technical Specifications.

The proposed changed Technical Specifications pages follow Enclosure 3.

Payment of the filing fee in the amount of one hundred and fif ty dollars is enclosed.

In order to allow time for procedure revision and orderly incorporation in'to copies of the Technical Specifications, we request that the proposed amendment, once approved by the NRC, be issued with an effective date to be no later than 60 days from the issuance of the amendment..

Pursuant to the requirements of 10 CFR 50.91, a copy of this letter and all applicable enclosures will be sent to Mr. J. L. Ledbetter of the Environmental Protection Division of the Georgia Department of Natural Resources.

Mr. J . T. Beckham, Jr. states that he is Vice President of Georgia Power Company and is authorized to execute this oath on behalf of Georgia Power Company, and that to the best of his knowledge and belief, the facts set forth in the letter and enclosures are true.

GEORGIA POWER COMPANY By: hcd /b3~

[/ d. T. Beckham,Xlr.

Sworn to and subscribed before me this 19th day of August 1986.

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Notary Public Notwy Rutdic. cycn Cwt,. Geoma

.My commission E,pves Dec.12. I'*b9 RE3/lc Enclosures c: Georgia Power Company U.S. Nuclear Regulatory Commission Mr. s . P. O'Reilly Dr. J. N. Grace, Regional Administrator Mr. H. C. Nix, Jr. Senior Resident Inspector GO-NORMS State of Georgia Mr. J. L. Ledbetter 06/4C p

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a j GeorgiaPower d ENCLOSURE 1 NRC DOCKET 50-366 OPERATING LICENSE NPF-5 EDWIN I. HATCH NUCLEAR PLANT UNIT 2 l REQUEST TO REVISE TECHNICAL SPECIFICATIONS 1

BAIILRY LOAD TESTING PROFILES

. s i

In order to demonstrate operability of the DC power system, Hatch Unit 2

Technical Specifications surveillance requirement 4.8.2.3.2.d requires performance of a test to demonstr

te that the station batteries 2A and 2B '

, are capable of supplying emergency loads for specified time periods. Two

! options are available for performance of this test, as delineated in

specifications 4.8.2.3.2.d.1 and 4.8.2.3.2.d.2. The former requires hookup of the actual emergency loads for 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />. The latter specifies a dununy load profile (current versus time) which may be used to demonstrate battery

(- operability. A machine capable of simulating the actual loads is used for performance of the latter surveillance option.

{

! Specification 4.8.2.3.2.d.1 has been used for performance of the subject surveillance at Plant Hatch Unit 2. Specification 4.8.2.3.2.d.2 has not lj been used because it has not previously been updated to reflect modifications to the plant which affect the load profile provided in the Technical Specifications. The load profile (for each battery) has now be'en ,

! analyzed and updated to reflect the as-built plant. The predominant impact '

j on the load profile is due to the LPCI inverter modification, which changed i

the power supply for the LPCI injection valves from AC to DC.

1 t The updated load profiles for batteries 2A and 2B are hereby provided i

for inclusion in the Technical Specifications. Implementation of this i - change will allow use of either option for performance of battery i surveillance. This will allow for more flexibility in outage planning l activities.

! Implementation of this change does not result in increased probabilities 1 or consequences of analyzed accidents. The proposed load profile correctly i models emergency plant loads and appropriately demonstrates operability of

! the station batteries. Plant operation is unaffected by this change. Thus, no new types of accidents are created. The margin of safety as defined in l

j. the basis for the Technical Specification is not reduced by this change.

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i l 0674C 08/19/86 i

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GeorgiaPower1 ENCLOSURE 2 NRC DOCKET 50-366 OPERATING LICENSE NPF-5 EDWIN I. HATCH NUCLEAR PLANT UNIT 2 REQUEST TO REVISE TECHNICAL SPECIFICATIONS BATTERY LOAD TESTING PROFILES 10 CFR 50.92 EVALUATION Pursuant to 10 CFR 50.92, Georgia Power Company has evaluated the attached proposed amendment for Plant Hatch Unit 2 and has determined that its adoption would not involve a significant hazards consideration. The basis for this determination is as follows:

Proposed Change:

Provide new battery load profiles for performance of surveillance requirement 4.8.2.3.2.d.2. These profiles are updated to reflect modifications to the plant.

Basis This change does not involve a significant increase in the probability or consequences of an accident, because plant operation is not affected by the proposed change. Testing requirements are being updated to reflect modifications to the plant which have resulted in new current / time profiles for emergency loads on the station batteries.

The possibility of a dif ferent kind of accident from any analyzed previously is not created by this change, because no new modes of plant operation are involved.

Margins of safety are not significantly reduced by this change, because the proposed new testing requirements will correctly model emergency loads for the as-built plant.

0674C 08/19/86 m ,,

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GeorgiaPower A ENCLOSURE 3 NRC DOCKET 50-366 OPERATING LICENSE NPF-5 EDWIN I. HATCH NUCLEAR PLANT UNIT 2 REQUEST TO REVISE TECHNICAL SPECIFICATIONS BAIItRY LOAD TESTING PROFlLEi The proposed changes to the Technical Specifications (Appendix A to Operating License NPF-5) would be incorporated as follows:

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0674C 08/19/86 l

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