ML18003B301

Provides Addl Info Supporting Nuclear Design Fq of 2.28 for Facility.Justification for Reduction of Generic Value to 2.28 Primarily Accomplished by Reduction in Max Allowable Fxy (Unrodded) to 1.53 & by Improved Axial Power Shapes

ML18003B301
Person / Time
Site:	Harris
Issue date:	06/03/1986
From:	Zimmerman S CAROLINA POWER & LIGHT CO.
To:	Harold Denton Office of Nuclear Reactor Regulation
References
NLS-86-212, NUDOCS 8606100369
Download: ML18003B301 (4)

Text

RE('Y INFORNATION DISTRIB SYSTEN (RIDS)

ACCESSION NBR: 8606100369 DOC. DATE: 86/06/03 NOTARIZED:

NQ DOCKET 0

~

FACIL:50-400 Shearon Harris Nuclear Power Planti Unit i. Carolina 05000400

'U NAME AUTHOR AFFILIATION ZINNERMAN>S. R.

Carolina Power 5 Light Co.

RECIP. NANE RECIPIENT AFFILIATION DENTQNi H. R.

Office of Nuclear Reactor Regulationi Director (post 851125

SUBJECT:

Provides addi info supporting Nuclear Design FG of 2. 28 +or facility.Justification for reduction of generic value to

2. 28 primarily ace omp 1 ished by reduction in max al 1 owab le Fxg (unrodded) to i. 53 0 bg improved axial power shapes.

DISTRIBUTION CODE:

B001D COPIES RECEIVED: LTR ENCL SIZE:

TITLE: Licensing Submittal:

PSAR/FSAR Amdts St Related Correspondence NOTES:Application for permit renewal filed.

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CNK Carolina Power 8 Light Company SERIAL: NLS-86-212 Mr. Harold R. Denton, Directot Office of Nuclear Reactor Regulation United States Nuclear Regulatory Commission Washington, DC 20555 SHEARON HARRIS NUCLEAR POWER PLANT UNIT NO.

1 DOCKET NO.50-000 LOCA REANALYSIS (BART CODE)

Dear Mr. Denton:

At the request of a member of your staff, Carolina Power R Light Company provides additional information supporting a Nuclear Design F~ of 2,28 for the Shearon Harris Nuclear Power Plant (SHNPP). 3ustification for the reduction in the Nuclear Design F~

from the generic value of 2.32 (WCAP 8385) to 2.28 was primarily accomplished by a reduction in the maximum allowable Fx (unrodded) from 1.55 to 1.53.

In addition, the reduction was accomplished by improvel axial power shapes (F(Z)) due to the SHNPP specific core loading and improved load following package.

The original SHNPP specific FAC (Final Acceptance Criteria) analysis limiting F~

occurred at 3,000 MWD/MTVwith +3, -12 target bands.

Extending the more restPictive

+ 5 target bands to 6,000 MWD/MTUreduced the F value at 3,000 MWD/MTU(due to less severe F(Z)) to the point at which BOL (BeginnRg of Life) ((50 MWD/MTU)became the new limiting condition.

The subsequent limiting BOL Nuclear Design F~ (2.275) is less than the proposed 2.28 value.

If you have any questions, please contact Mr. Gregg A. Sinders at (919) 836-8168.

Yours very truly, SRZ/GAS/mf (3960GAS)

S.

Zim er man anager Nuclear Licensing Section CC:

Mr. B. C. Buckley (NRC)

Mr. G. F. Maxwell (NRC-SHNPP)

Dr. 3. Nelson Grace (NRC-RII)

Mr. Travis Payne (KUDZU)

Mr. Daniel F. Read (CHANGE/ELP)

Wake County Public Library Mr. Wells Eddleman Mr. M. Dunenfeld (NRC)

Mr. 3ohn D. Runkle Dr. Richard D. Wilson Mr. G. O. Bright (ASLB)

Dr. 3. H. Carpenter (ASLB)

Mr. 3. L. Kelley (ASLB)

Mr. T. S. Moore (ASLAB)

Dr. R. L. Gotchy (ASLAB)

Mr. H. A. Wilber (ASLAB) 8606100369 860603 PDR ADOCK 05000400

'DR 411 Fayettevilte Street o P. O. Box 1551 o Raleigh. N. C. 27602 QQf)

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