ML17209A476

Submits Suppl to Util 801118 Response to NRC 801010 Ltr Re Loss of Power,Clarifying Reg Guide 1.108 Testing Criteria & Incorporation Into Facility Procedures

ML17209A476
Person / Time
Site:	Saint Lucie
Issue date:	12/16/1980
From:	Robert E. Uhrig FLORIDA POWER & LIGHT CO.
To:	Eisenhut D Office of Nuclear Reactor Regulation
References
L-80-407, NUDOCS 8012240179
Download: ML17209A476 (7)

Text

REGULATORY IN(NATION DISTRIBUTION SYSTI(RIBS)

ACCESSION NBR: 8012240179 DOC DATE: 80/12/16

~ NOTARIZED:, YES DOCKET FACIL:50"335 St ~ Lucie Plant~ Unit 1R Florida Power L Light Co. 05000335 AU TH. NAME AUTHUR AF F ILI A TION UHRI G R. E.

R Florida Power 8 Light Co.

REC IP ~ NAME RECIPIENT AFFILIATION EISENHUTiD.G. Division of Licensing S UBJECT: Submits suppl to,. util 801118 response to NRC 801010 tr* re 1 loss of power~clarifying Reg Guide 1.108 testing criteria 8 their incor poration into facility procedures, DISTRIBUTION CODE: A015S COPIES RECEIVED:LTR TITLE: Onsite Emergency Power Systems ENCL ~ SIZEo NOTES:

RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL CTION: CLARK g R, 04 7 7 NTERNAL: AEOD 1 1 GEN ISSUES BR13 1 1 IR,C SYS BR 09 1 1 IEE 06 2 2 MPA 18 1 1 NRC PDR 02 1 1 OELD 17 1 1 OP EX EVAL BR11 1 1

~S BR 12 1 1 PONER SYS BR 14 1 EG F 01 1 1 XTERNAL: ACRS 16 16 16 LPDR 03 1 1 NSIC 05 1 1

~~~ 30 198y TOTAL NUMBER Of COPIES REQUIRED: LTTR 37 ENCL 37

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~h FLORIDA POWER 5 LIGHT COMPANY MN December 16, 1980 L-80-407 P 8 Office of Nuclear Reactor Regulation Attention: Mr. Darrell G. Eisenhut, Director Division of Licensing U. S. Nuclear Regulatory Commission Washington, D. C. 20555

Dear Mr. Eisenhut:

Re: St. Lucie Unit 1 Docket No. 50-335 Loss of AC Power In response to your letter of October 10, 1980 issued pursuant to 10 CFR 50.54 (f) regarding loss of AC Power, FPL submitted a 1'etter on November 18, 1980 (L-80-384).

To avoid misinterpretation with regards to our letter, FPL wishes to clarify the previously made statements on Page 5 of 6 regarding RG 1. 108 testing criteria and their incorporation into St. Lucie Unit 1 procedures.

The enclosed page should be substituted for that page of the subject FPL letter.

Very truly yours,

+ Vice President Robert E. Uhrig Advanced Systems & Technology REU/DME/ah Enclosure 80iasCO /Pg PEOPLE... SERVING PEOPLF

PSL 1 DOCKET NO. 50-335 LOSS OF AC POMER Page 5 of 6 The steam turbine driven auxiliary feedwater pump operated with steam from the steam generators is capable of local manual control. Upon.

loss of ac power remote automatic and remote manual control from the control room is lost. However, the turbine's throttle valve is provided with a hand wheel for manual operation. The steam generator inventory may be brought back to its normal level and maintained. It should be noted that the operation of the auxiliary feedwater system independent oi ac 'power is presently being investigated in relation to other NRC guidance along with the  %<11 Lessons Learned AFM system modifications.

Regarding the need for periodic testing of diesel generators per Regulatory Guide 1.108 Florida Power and Light Company has had several discussions with the NRC staff concerning the application of Regulatory Guide 1.108 testing requirements to the St. Lucie Unit 1 emergency diesel generator sets.

Based on these discussions and correspondence with our diesel generator set manufacturer, FPL has committed to a period testing program that is responsive to the intent of Regulatory Guide 1.108. This commitment was contained in a letter from FPL to the NRC (R.E. Vhrig to V. Stello, letter No. L-78-289) on September 5, 1978. Certain modifications to R. G. 1.108 testing criteria that were necessitated by our particular diesel generator set design were also described and explained in that letter along with the detailed technical specifications that will be incorporated into the St. Lucie Unit 1 procedures4upon approval~of the proposed technical specification changes. FPL is committed to

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STATE OP FLORIDA )

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A. D. Schmidt , being first duly sworn, deposes and, says:

That he is Vice President ~

of Florida Power 6 Light Company, the 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 A. D. Schmidt Subscribed and sworn to before me..this

)4'ay o NOTARY PUBLXC in and for the County of Dade, State of Florida at Large Notary Public, State of Fionda Expires October 30, t983 My Commis@on '

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