ML19253C875

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Changes Util Re Installation of Voltage Regulators by Removing 24-h Requirement for Plant Trip
ML19253C875
Person / Time
Site: Yankee Rowe
Issue date: 12/06/1979
From: Moody D
YANKEE ATOMIC ELECTRIC CO.
To: Ziemann D
Office of Nuclear Reactor Regulation
References
WYR-79-149, NUDOCS 7912120299
Download: ML19253C875 (1)


Text

Telephone 617 366-90!I m

710-300-0739 YANKEE ATOMIC ELECTRIC COMPANY n.2.2.1 WYR 79-l'49

,Y $. 3 20 Turnpike Road Westborough, Massachusetts 01581 NKYE December 6, 1979 United States Nuclear Regulatory Commission Washington, DC 20555 Attention:

Mr. Dennis L. Ziemann, Chief Division of Operating Reactors

References:

(1) License No. DPR-3 (Docket No. 50-29)

(2) YAEC Letter to USNRC dated December 3,1979

Dear Sir:

Reference (2) provided additional information relative to the installation of voltage regulators to our 2400 volt system.

In that letter, we informed you of the need to shut down the plant for approximately two weeks, and requested that implementation of the codification coincide with our mid-January (1980) shutdown to implement certain equipment modifications as required by NUREG-0578. Additionally, we qu'liiL f this request by further committing to implement the modification if the plant t -ipped for 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> or more between now and mid-January. This letter changes the latter by removing the 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> requirement.

Should a plant trip be experienced betveen now and mid-January (1980), the riant will cool dows and remain off the line until the modification effort is e mpleted.

We trust that you will find this chant,e satisfactory.

In recent discussions with you staff we have debatest the need to change our December 3, 1979 letter.

Our position remnins that the above change is unwarranted and without a justified basis. A letter will follow to fully state this position.

Should you have any questions or require any additional information, please contact us.

Vety truly yours, YAhKEE ATOMIC ELEC. TIC COMPANY D. E. Moody Manager of Operations JAK/nj 4} )

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