ML20117K081

Replaces 960516 Response to Concerns Re Proposed Changes for Diesel Starting Air Sys Surveillance Testing

ML20117K081
Person / Time
Site:	Mcguire, Catawba, McGuire
Issue date:	08/29/1996
From:	Tuckman M DUKE POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20117K084	List: ML20117K081 ML20117K101
References
TAC-M94276, TAC-M94277, TAC-M94278, TAC-M94279, NUDOCS 9609110123
Download: ML20117K081 (6)

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Duke PbwerCcapany M S Tlaw P.O Box 1006 Senior VicePresident Charlotte,NC282012006 Nuclear Genemtion (704)3822200 Office 1 (701)3824360 Fax DUKEPOWER l August 29, 1996 )

i U.S. Nuclear Regulatory Commission i

Attention: Document Control Desk  !

Washington, DC 20555 I

Subject:

McGuire Nuclear Station, Units 1 and 2 Docket Nos. 50-369 and 50-370 l Catawba Nuclear Station, Units 1 and 2  !

Docket Nos. 50-413 and 50-414 Supplement to Proposed Technical Specification i 3/4.8 Change Submittal Dated 12/14/95 Reference TAC NOS. M94276, M94277, M94278, M94279

Dear Sir:

By letter dated 12/14/95, Duke Power Submitted the subject' l proposed technical specification change. j By letter dated 4/10/96, the NRC requested additional l information (RAI) regarding: 1/ power factor used during '

full-load rejection test, 2/ power factor used during 24-hour endurance test, 3/ verification of auto-connected loads not exceeding the 2-hour rating, and 4/ diesel generator manufacturer.

On 4/17/96, the NRC discussed concerns regarding the proposed changes for the diesel starting air system surveillance testing.

By letter dated 5/16/96, Duke Power provided response to the 4/10/96 RAI and the 4/17/96 concerns.

On 5/29/96, the NRC discussed concerns regarding the proposed changes for the diesel fuel oil surveillance testing.

On 6/20/96, the NRC discussed further concerns regarding the proposed changes for the diesel starting air system surveillance testing.

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I U.S. Nuclear Regulatory Commission August 29, 1996 page 2 l This supplement replaces our 5/16/96 response (not the original 12/14/95 submittal) entirely so that our response to the concerns regarding the proposed changes for the diesel starting air system surveillance testing can be clearly provided. As such, Attachment 1 documents our revised (changes are marked by side bars) response to the 4/10/96 RAI. Our 5/16/96 response regarding the diesel starting air concerns is superseded by the discussion in the following paragraph.

Duke Power hereby withdraws the proposed changes regarding using at least one air tank with no compressors for starting the diesel and lowering the maximum tank pressure from 220 psig to 210 psig. This withdrawal is desired considering

. Duke's schedule for converting to the Improved Standard Technical Specifications (ISTS). In ISTS, the appropriate maximum and minimum tank pressures will be evaluated and incorporated.

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3 Duke Power hereby also withdraws all proposed changes regarding the diesel fuel oil surveillance testing. The proposed changes involved relocating the details of diesel fuel oil testing requirements to a new section in the administrative controls of technical specifications similar to a section in ISTS. This withdrawal is desired considering  :

Duke's schedule for converting to the ISTS.

Attachment 2 includes the revised (changes are marked by side i bars) marked-up Technical Specification pages and )

justification as a result of all concerns mentioned above.

Attachment 3 includes the final unit specific Technical Specification pages.

Please contact P.T. vu at (704) 382-2276 if questions arise concerning this supplement.

Very truly yours, f*(- h. Lwcs Svear--

M.S. Tuckman PTV/s Attachments

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U.S. Nuclear Regulatory Commission August 20 s 1996 page 3 xc: (w/af,tachment s)

Mr. S.D. Ebneter Administrator, Region II U.S. Nuclear Regulatory Commission 101 Marietta St., NW, Suite 2900 Atlanta, GA. 30323 Mr. V. Nerses Senior Project Manager Office of U.S. Nuclear Reactor Regulation One White Flint North Washington, D.C. 20555 Mr. Peter Tam Senior Project Manager Office of U.S. Nuclear Reactor Regulation One White Flint North Washington, D.C. 20555 Mr. Scott Shaeffer NRC Senior Resident Inspector McGuire Nuclear Station Mr. R.J. Freudenberger NRC Senior Resident Inspector Catawba Nuclear Station Mr. Dayne Brown, Director Division of Radiation Protection P.O. Box 27687 Raleigh, N.C. 27611-7687 Mr. Max Batavia, Chief Bureau of Radiological Health 2600 Bull Street Columbia, S.C. 29201 i

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U.S. Nuclear Regulatory Commission August 29, 1996 page 4 bxc: (w. attachments)

T.C. McMeekin (MG01VP)

W.R. McCollum (CN01VP)

J.E. Snyder (MG01RC)

P.R. Newton (PB05A)

G.A. Copp (EC05N)

M.S. Kitlan (CN01RC)

L.J. Rudy (CN01RC)

R.A. Kayler (CNO3SE)

J.E. Burchfield (ONO3RC)

R.M. Roberts (MG01SE)

R.A. Johansen (MG010P)

W.W. Gallman (ECII-07)

C.L. Hathcock (MG03A2)

J.M. Washam (MG01RC)

ELL (EC050)

MNS RGC Tech. Spec. Subject File CNS Master File CN 801.01 Catawba Owners:

NCMPA-1 NCEMC PMPA SREC

U.S. Nuclear Regulatory Commission Attachment 1 August 29, 1996 Page 1 RESPONSE TO THE 4/10/96 RAI

1. What power factor will be used for the McGuire full-load rejection test? l The full-load rejection test is performed tied to the utility grid at unity power factor. The McGuire diesel generators are performing as designed but cannot meet the 4784 volt limit at 0.9 power factor. We are evaluating this test as part of our move to the Improved Standard Technical Specifications (ISTS) next year. The result will be appropriately incorporated into ISTS. For now, we would like to withdraw our initial proposed change to surveillance 4.8.1.1.2.e.3, leaving the full-load rejection load at 4000 kW, instead of 2 3600 kW and s 4000 kW as initially proposed.

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2. What power factor will be used during the McGuire 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> endurance test?

This test is performed at 0.8 power factor which is consistent with NUREG-1431. We will adopt the s 0.9 power factor when converting to ISTS.

3. For McGuire and Catawba, deletion of the requirement to verify auto-connected loads to each diesel generator do not exceed the 2-hour rating. How is the requirement satisfied (i.e., calculation or testing)? Is there a plant document that requires updating this test or calculation as bus loading changes?

Loads cannot be added to the 4160 V emergency bus without going through the modification process. This is controlled by the Modification Manual and EDM 101 (Engineering Calculations / Analyses). Calculations MCC-1381.05-00-0187 (McGuire) or CNC-1381.05-00-0147 (Catawba) would have to be reviewed before load could be added and updated accordingly.

4. Proposed McGuire insert pertaining to " manufacturer's recommendations".

McGuire agrees with the staff suggested wording of the proposed insert and would like to change the submittal to the following: "Since the McGuire emergency diesel generator manufacturer (Nordberg) is no longer in business, McGuire engineering is the designer of record.

Therefore, in the absence of manufacturer recommendations, McGuire engineering will determine what is the appropriate actions required for the nuclear class diesel service

U.S. Nuclear Regulatory Commission Attachment 1 August 29, 1996 Page 2 taking into account McGuire diesel generator maintenance and operating history and industry experience where applicable."

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