ML20212F352

Supplemental Application for Amend to Licenses NPF-68 & NPF-81,proposing Change to SR 3.8.1.13 to Include Upper Limit for DG Loading for 2 H Portion of SR

ML20212F352
Person / Time
Site:	Vogtle
Issue date:	09/22/1999
From:	Woodward J SOUTHERN NUCLEAR OPERATING CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20212F357	List: ML20212F352 ML20212F489
References
LCV-1329-A, NUDOCS 9909280132
Download: ML20212F352 (2)

Text

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J. D.Woodard Southern Nuclear

, Executive Vice President Operating Company. Inc.

40 invemess Center Parkway Post Office Box 1295 Birmingham Alabama 35201 Tel 205 992.5086 l SOUTHERNk L COMPANY Energy to Serve Your World' LCV-1329-A  !

September 22, 1999 Docket Nos. 50-424  :

50-425 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D. C. 20555 i Ladies and Gentlemen:

VOGTLE ELECTRIC GENERATING PLANT REQUEST TO REVISE TECIINICAL SPECIFICATIONS DIESEL GENERATOR LOADING REQUIREMENTS SURVEILLANCE REQUIREMENTS 3.8.1.3 AND 3.8.1.13 i

By lettcr dated May 18,1999, (LCV-1329) Southem Nuclear Operating Company (SNC) ,

proposed to revise the Vogtle Electric Generating Plant (VEGP) Unit I and Unit 2 Technical Specifications (TS). The proposed change would revise Surveillance Requirements (SRs) 3.8.1.3 and 3.8.1.13 to reduce the loading requirements for the diesel generators (DGs). On Attgust 24,1999, SNC discussed the proposed change with the NRC staff reviewer over the telephone. The reviewer requested that we revise our proposed change to SR 3.8.1.13 to include an upper limit for the DG loading for the 2-hour portion of the SR. SNC agreed to reinstate the original 7700 kW upper limit. Therefore, part a. of SR 3.8.1.13 would be revised to state, "For 2 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> loaded 2 6900 kW and s 7700 kW and operating as close as practicable to 3390 kVAR; and". A revised marked-up page and a clean typed page are enclosed reflecting this change. Only the affected pages from our May 18,1999, submittal are provided with this letter. The remaining pages from our May 18,1999, submittal are not affected.

In addition, for the record, our May 18,1999 submittal stated that the maximum expected DG loading for VEGP was determined to be 6471 kW and 3391 kVAR, or 7306 kVA at 0.886 power factor. The calculations that determined this value have been revised and the current maximum expected DG loading, which occurs during a loss of offsite power, is 6447 kW and 3249 kVAR, or 7219 kVA at a 0.893 power factor. Our proposed change remains conservative with respect to the revised expected DG loading.

j Our May 18,1999 submittal included an evaluation pursuant to 10 CFR 50.92 that concluded

! that the proposed changes did not involve a significant haza d consideration. This revision to l our submittal does not alter that conclusion, l

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, U. S. Nuclear Regulatory Commission

, LCV-1329-A Page 2 i'

Mr. J. D. Woodard states that he is an Executive Vice President of Southern Nuclear Operating Company and is authorized to execute this oath on behalf of Southern Nuclear Operating Company and that, to the best of his knowledge and belief, the facts set forth in this letter are true.

SOUTHERN NUCLEAR OPERATING COMPANY By: \ J. . WoodaW 4

N Suvrn pandsubscribed before me th&2Ndayof ?Yn, mfo ,1999.

NAA . fed Notarylfblic 7l My ommission expires: V'l#l"O %

JDW/NJS

Enclosure:

Revised marked-up and clean-typed TS pages xc: Southern Nuclear Operatmg Company Mr. J. T. Gasser Mr. M. Sheibani SNC Document Management U. S. Nuclear Regulatory Commission Mr. L A. Reyes, Regional Administrator Mr. R. R. Assa, Project Manager, NRR Mr. John Zeiler, Senior Resident Inspector, Vogtle l