ML19319C880

Responds to AEC 730307 Ltr Re Inadvertent Disabling of Components by Circuit Breakers Racking Out for Different Component.Circuit Maintained Through Finger Contacts During Racking Out of Breakers at Facility

ML19319C880
Person / Time
Site:	Crystal River
Issue date:	04/19/1973
From:	Rodgers J FLORIDA POWER CORP.
To:	Schwencer A US ATOMIC ENERGY COMMISSION (AEC)
Shared Package
ML19319C867	List: ML19319C866 ML19319C873 ML19319C880
References
NUDOCS 8003040837
Download: ML19319C880 (1)

Text

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Rorida 3p,11 19, 1973 P. w

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Mr. A. Schwencer Chief, Pressurized Water

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Reactors, Branch No. 4 *

', , Directorate of Licensing ' '

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-/ United States Atomic Energy Commission C,'

Washington, DC 20545 cs,' '

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SUBJECT:

FLORIDA POWER CORPORATION . . . .' -/

,, CRYSTAL RIVER NUCLEAR GENERATING PLANT w/

DOCKET NO. 50-302

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Dear Mr. Schwencer:

In response to your March 7,1973 letter, relating to inadvertent disabling of components by racking out of circuit breakers for a N different component, we give the following information:

All normally closed circuits in our 6.9 kv, 4.16 kv d 480 volt switch gear are arranged so that when the breakes are " racked out", the circuit is maintained through finger contacts. With this ' feature, we do not have the problem as described in your March 7 letter.

As requested, we are providing for your distribution, one signed original and thirty-nine additional copies 02: our response.

Please contact us if you require any discussion or clarification of the above information. -

Very truly yours, J. T. Rodgers Assistant Vice President JTR/ns .

8003040 37 Enclosures ,,-

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COPY SENT REGION- 2654 General Office 3201 TNrry fourtn street Soutn . P.o. Box 14o42. St. Petersburg, Flonda 33733 813--866-5151

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