ML17255A761

Forwards Re Ginna Nuclear Power Station Containment Vessel Tendons Load Cell Evaluation. Rept Demonstrates That Seasonal Variations in Atmospheric Temp Will Cause Fluctuation in Tendon Force Levels

ML17255A761
Person / Time
Site:	Ginna
Issue date:	04/10/1984
From:	Kober R ROCHESTER GAS & ELECTRIC CORP.
To:	Crutchfield D Office of Nuclear Reactor Regulation
Shared Package
ML17255A762	List: ML17255A761 ML17255A763
References
NUDOCS 8404160161
Download: ML17255A761 (4)

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REGULATOR

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ACCESSION NBR;8400160161

.DOC ~ DATE'4/00/10 NOTARIZED:

NO DOCKET FACIL'!50 244 Robert Emmet Ginna Nuclear Plantr gni;t ii Rochester G

05000244 AUTH BYNAME>>

AUTHOR AFFILIATION KOBERiR,N, Rochester Gas L Electric Corp, RECIP~NAME RECIPIENT AFFILIATION CRUTCHFIELDrD, Operating Reactors

.Branch 5

SVBJECT; Forwards "RE Ginna Nuclear Power Station Containment Vessel Tendoni Load:Cell Evaluation.".

-Rept demonstrates that seasonal.var)ations in atmospheric temp wi'll cause fluctuation in tendon force levels<

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r/ fIIIICI/IIIAI I/Iir"'I/Zuszs>Z 8E:::-'OCHESTER GAS AND ELECTRIC CORPORATION o 89 EAST AVENUE, ROCHESTER, N,Y. 14649-ppp1 ROGER W. KOBER VICE PRESIDENT ELECTRIC & STEAM PRODUCTION TCLCPNONC ARCA COOC TIS 546.2700 April 10, 1984 Director of Nuclear Regulation Attention:

Mr. Dennis M. Crutchfield, Chief Operating Reactors Branch No.

5 U.S. Nuclear Regulatory Commission Washington, D.C.

20555

Subject:

Containment Vessel Tendon Evaluation Program R. E. Ginna Nuclear Power Plant Docket No. 50-244

Dear Mr. Crutchfield:

In response to Staff Comment No.

10 contained in your letter dated March 8, 1983 we are submitting the attached GAI Report No.

2521 entitled "Containment Vessel

Tendons, Load Cell Evaluation."

The report demonstrates that seasonal variations in atmospheric temperatures will cause fluctuations in tendon force levels.

It was determined that tendon force is inversely proportional to temperature<

The approximate change in tendon force is 2 kips for each 10 F increase or decrease in the average monthly outside ambient temperature.

This submittal completes our response to open items in the above referenced letter.

V y truly yours, R

er W. Kober Attachments 8404160161 840410 PDR ADOCK 05000244;,

PDR

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