ML19322B994

Forwards Info Addl to Cycle 5 Reload Rept BAW-1493, Submitted 780626.Also Forwards Proposed Tech Spec Changes

ML19322B994
Person / Time
Site:	Oconee
Issue date:	08/21/1978
From:	Parker W DUKE POWER CO.
To:	Harold Denton Office of Nuclear Reactor Regulation
Shared Package
ML19322B995	List: ML19322B994 ML19322B996
References
NUDOCS 7912200710
Download: ML19322B994 (5)

Text

o *j ^ . g REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)

DISTRIBUTION FOR INCOMING MATERIAL 50-269 REC: DENTON H R ORG: PARKER W O DOCDATE: 08/21/78 NRC NRC DATE RCVD: 08/24/78 OOCTYPE: LETTER NOTARIZED: YES COPIES RECEIVED

SUBJECT:

LTR 3 ENCL 40

"?URNISHING SUPPLEMENTAL INFO TO APPLICANT"S 06/26/76 SUBMITTAL OF SUBJECT rACILITY"S CYCLE 5 RELOAD REPT (DAW-1493) AND PROPOSED TECH SPEC CPANGES FOR OPERATION OF CYCLE 5. . NOTARIZED OG/21/7G. W/ATT REV 1. BAW-1493, "OCONEE UNIT 1, CYCLE 5 RELOAD.R2PT' Sw ,Js .

PLANT NAME:OCONEE - UNIT REVIEWER INITI AL: XJM DISTRIBUTOR INITIAL:

• • • • • • • • • • • • • • • • • DISTRIBUTION OF THIS MATERIAL IS AS FOLLOWS ******************

NOTES:

1. M. CUNNINGHAM - ALL AMENDMENTS TO FSAR AND CHANGES TO TECH SPECS ,

l GENERAL DISTRIBUTION FOR AFTER ISSUANCE OF OPERATING LICENSE. j (DISTRIBUTION CODE AOO1) ,

l FOR ACTION: CR CHIEF ORBM4 CC**W/7 ENCL  ;

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HANAUER**W/ ENCL CORE PERFORMANCE BR**W/ ENCL  !

AD FOR SYS & PROJ**W/ ENCL ENGINEERING BR**W/ ENCL REACTOR SAFETY DR**W/ ENCL PLANT SYSTEMS BR**W/ ENCL EEB**W/ ENCL EFFLUENT TREAT SYS**W/ ENCL J. MCGOUGH**W/ ENCL EXTERNAL: LPDR'S WALHALLA. SC**W/ ENCL l TERA **W/ ENCL NSIC**W/ ENCL l ACRS CAT B**W/16 ENCL l

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DUKE Powza COMPANY

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Powra Bulunxo 422 SocTu Cucacu SrazzT. CHARI.OTTE N. C. 28242 d

w.w e. o. manca.o. August 21, 1976 VeC F PettiQtu? TCL Como%g: AeC4 704 5tCap D eO OvCT 40 N 373-408)

Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Washington, D. C. 20555 Attention: Mr. R. Reid, Chief Operating Reactors Branch #4

Reference:

Oconee Unit 1 Docket No. 50-269

Dear Sir:

My letter of June 26, 1978 submitted the Oconee 1 Cycle 5 reload report (BAW-1493) and proposed Technical Specification changes for operation of Cycle 5. This letter supplements the information provided in my initial submittal.

An analysis of the core thermal-hydraulics of Cycle 5 with'out orifice rod assemblies (0RA's) installed has been conducted and is described in BAW-1493, Revision 1, "Oconee Unit 1, Cycle 5, Reload Report" (Attachment 1). This analysis justifies the operation of Cycle 5 without ORA's in the core, and it is proposed to delete the ORA's from the Cycle 5 core.

Technical Specifications previously proposed for Oconee 1, Cycle 5 have been reviewed, and it has been confirmed that they continue to be valid for the core configuration without the orifice rod assemblies. The existing RC pump monitor trip for loss-of-one pump, however, is not necessary becuase the revised thermal-hydraulic analysis for the flux-flow trip setpoint is performed using the two-pump coastdown with appropriate margin for the rod bow penalty (Section 6 of BAW-1493, Revision 1) . Therefore, it is proposed to eliminate the RC pump monitor trip for loss-of-one-pump for Oconee 1 Cycle 5.

Attachment 2 contains the additional pages proposed to be revised with this license amendment.

On June 8, 1978, Duke Power Company filed a request for exemption from 10CFR 50, 550.46 for Oconee Unit 3 based on a staff request. It continues to be our position that the Oconee ECCS is currently acceptable and wholly in conformance with 10CFR 50, 550.46. Improvements to the ECCS prior to the startup of Unit i 7S2 4 grp,1]{ B"Omi 3'W1'~7 P. .I S_ f_

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- Mr. Harold R. Denton, Director ._

- August 21, 1978 Page Two following the forthcoming refueling are neither necessary nor feasi'4. t. However, in response to a_ staff request and pursuant to 10CFR 50, 550.12, it is hereby requested that an exemption be granted to the provisions of 10CTR 50,150.46 and that Oconee Unit 1 be licensed to operate at full rated core thermal power (2568 MWe).

The information contained in this letter is considered to supplement my submittal of June 26, 1978, and the exemption request has been determined not to require a license fee. Therefore, no additional license fees are provided.

Ve- truly yours, d...~ d. L_' ,*

'~ William O. Parker, Jr.

RLG:ses Attach =ent 2

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August 21, 1978 P:ge Thres

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'4ILLIX4 0. PARKER, JR. , being duly sworn, states that he is Vice President of Duke Power Company; that he is authorized on the part of said Company to sign and file with the Nuclear Regulatory Commission this request that an exemption be granted to the provisions of 10CFR 50, 550.46 and that Oconee Unit 1 be licensed to operate at full rated core thermal power (2568 .Y4 )t .

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'41111am O. Parker, Jr. , Vfce President Subscribed and sworn to before =e this 21st day of August, 1978.

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Vivian B. Robbins

(?!otarial Seal) .

}tf Cocmission Expires:

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Attachment 1 BAW-1493, Revision 1 Oconee 1, Cycle 5 Reload Report

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