ML18023A031

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Responds to 830427 Ltr Re Proposed Mods to Automatic Depressurization Sys Logic (TMI Item II.K.3.18) Per SER Confirmatory Item 25.Util Will Implement BWR Owners Group Option for Removal of High Drywell Pressure Trip
ML18023A031
Person / Time
Site: Perry  FirstEnergy icon.png
Issue date: 07/01/1983
From: Edelman M
CLEVELAND ELECTRIC ILLUMINATING CO.
To: Youngblood B
Office of Nuclear Reactor Regulation
References
TASK-2.K.3.18, TASK-TM PY-CEI-NRR-0058, PY-CEI-NRR-58, NUDOCS 8307060298
Download: ML18023A031 (6)


Text

REGULATO INFORMATION DISTRIBUTION STEM (RIDS)

~ DATE! 83/07/01 NOTARIZED:. NO AQCE'SS ION NBR: 8307060298 DOC DO FACIL:50-440 Per ry Nuclear Power tPlantE Unit -ii Cleveland Electr ic 50<<441 Perry Nuclear Power 'PlantE Unit 2i Cleveland Electr ic 05000441 AUTH'AME AUTHOR AFFILIATION EDELMANEM~ R, Cl eve and Electric I 1 l uminating 1Co.

1 RECIP,NAME RECIPIENT AFFILIATION YOUNGBLOOD~B.J Licensing Branch 1

SUBJECT:

Responds to 830427 ltr ne proposed mods to automatic depressurization sys logic ('TMI Item II.'K>>3,18) per SER Confirmatory Item 25<Util will impl.ement BAR Owners Group option for removal of high drywell ipressure trip, DISTRIBUTION CODE: BOOIS COPIES RECEIVED:LTR . 1 ENCL .g SIZE .

Related Correspondence TITLE: 'Licensing 'Submittal:;PSAR/FSAR Amdts 8 NOTES:

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THE CLEVELAND ELECTIRIIC l!LLUMIÃATIINGCOMII'AHV P.o. BOX 5000 - CLEVELAND. OHIO 44101 - TELEPHONE (216) 622-9600 - ILLUMINATINGBLDG. 55 PUBLICSQUARE Serving The Best Location in the Nation MURRAY R. EDELMAN VICE PRESIDENT NUCLEAR 3uly 1, 1983 PY-CEI/NRR-0058 L Mr. B. 3. Youngblood, Chief Licensing Branch No. 1 Division of Licensing U. S. Nuclear Regulatory Commission Washington, D. C. 20555 Perry Nuclear Power Plant Docket Nos.50-000; 50-001 Confirmatory Issue No. 25-TMI Action Plan Item II.K.3.18 Automatic De ressurization S stem

Dear Mr. Youngblood:

This letter is provided in response to your letter dated April 27, 1983, in which you requested information on proposed modifications to the Automatic Depress-urization System (ADS) logic for the Perry Nuclear Power Plant (PNPP), Units 1 and 2.

We have evaluated the BWR Owner's Group ADS logic modification options, found to be acceptable by the NRC staff. We have decided to implement the option consisting of the removal of the high drywell pressure trip in conjuction with the addition of a manual switch which inhibits ADS actuation. This modification will be implemented before startup after the first refueling outage.

The manual inhibit switch will be keylocked and located near the existing logic reset switch on the control room panel (H13-P601). The switch will be included into the ADS inoperative and bypass indication system to alarm whenever it is not in the normal position. This will provide continuous surveillance of the switch.

In addition, the use of the manual inhibit switch will be addressed in the Perry specific Plant Emergency Instructions.

8307060298 830701 PDR ADQCK OS000440 yI PDR

3uly, 1983 Mr. B. 3. Youngblood P Y-CEI/NR R-0058L This response addresses the PNPP SER Confirmatory Issue No. 25 and the TMI Action Plan Item II.K.3.18, and will be incorporated into a future FSAR amend-ment.

V/e believe this information should resolve this confirmatory issue in the next supplement to the Safety Evaluation Report.

If we can be of any further assistance, please contact us.

Very truly yours, Murray R. Edelman Vice President Nuclear Group M RE:mlb cc: 3ay Silberg, Esq.

3ohn Stefano Max Gildner