ML18227B259

Letter Proposed Modifications to Technical Specification Figure 2.1-1, Reactor Core Thermal and Hydraulic Safety Limits, Three Loop Operation

ML18227B259
Person / Time
Site:	Turkey Point
Issue date:	06/22/1978
From:	Robert E. Uhrig Florida Power & Light Co
To:	Stello V Office of Nuclear Reactor Regulation
References
Download: ML18227B259 (10)

Text

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t(W 06/22/78 DATE CVD: 06/28/78 COPIES RECEIVED LTR 3 ENCL 40 04/04/77 PROPOSED MODIFICATION TO THERMAL AND HYDRAULIC SAFETY F DOCTYPE: LETTER NOTARIZED: YES I

SUBJECT:

FORWARDING FIGURES AMENDING APPLICANT"S T

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FLORIDAPOWER & LIGHTCOMPANY June 22, 1978 L-78-217 Office of Nuclear Reactor Regulation Attention:

Mr. Victor Stello, Jr., Director Division of Operating Reactors U.S. Nuclear Regulatory Commission Washington, D.

C.

20555

Dear Mr. Stello:

Re:

Turkey Point Units 3 and 4

Docket Nos.

50-250 and 50-251 Thermal and' drau'1'ic'afet Lilni'ts c -3 W-i fr'g L

C J o.

On April 4,

1977, (L-77-106), Florida Power 6 Light Company sub-mitted proposed modifications to Technical Specification Figure 2.1-1, Reactor Core Thermal and Hydraulic Safety Limits, Three Loop Operation.

The revised figure included the effects of rod bow.

This figure has subsequently been revised as a result of steam generator tube plugging.

The attached figures are submitted as an amendment to our April 4, 1977 submittal.

Figure 2.1-1 is for operation with

< 15 percent steam generator tubes plugged and Figure 2.l-la is for operation with 15 percent and

< 19 percent steam generator tubes plugged.

Both figures include a

rod bow penalty consistent with our April 4, 1977 submittal.

This revision to our proposed amendment to Facility Operating Licenses DPR-31 and DPR-41 has been reviewed by the Turkey Point Plant Nuclear Safety Committee and the Florida Power S Light Company Nuclear Review Board.

They have concluded that this re-vision does not involve an unreviewed safety question.

Very truly yours,,

Rober E. Uhrig Vice President REU:GDW:lc cc:

Mr. Robert Lowenstein, Esquire Mr. James P. 0'Reilly, Region gl ggjt1I('j LI'Ii~~tgI.I((gpg 781800014 PEOPLE... SERVING PEOPLE

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650

'640 2400 psia 630 2250 psia 620 610 2100 psia 600 1900 psia

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580 570 560 Note:

These curves are applicable with-steam generator. tube plugging

<15 percent.

550 540 0

20 40 60 80 100 120:

14'0 Figure 2.,1-1.

RATED POWER (PERCENT)

Reactor Core Thermal and Hydraulic Safety Limits, 3 Loop Operation 5/17/78

0

650 640 2400 psia 630 2250 psia 620,.

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580, 570 560'100 psia 1900 psia Note:

These curves are applicable with steam generator tube plugging

>15% and

<19%.

550 540 0

20 Figure 2..l-la.

40.

60 80 '00 120.

RATED POWER (PERCENT)'eactor Core Thermal and Hydraulic Safety Limits, 3'Loop Operation 5/17/78 140

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STATE OF FLORIDA

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COUNTY OF DADE

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ssa Robert E-Uhrig, being first duly sworn, deposes and says:

That he is a Vice President of Florida Power

& Light Company, the Licensee herein; That he has executed the foregoing document; that the state-ments made in this said document are true and correct to the best of his knowledge, information, and belief, and that he is authorized to execute the document on behalf of said Licensee.

Robert E. Uhrig Subscribed and sworn to before me this

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aaV Or 19 /tt NOTARY PUBLI in and State of Flori a My commission expires t,IILILKU4~

'1, for the County of Dade, 80?4 a UR LID STATS OF FLORIDA N'IY CONIMISSIDN Ll(I'(RFS MARCH 27, 15Qg

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GDNDED THM VAYNARD CDNDINQ AGENCY

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