ML17348A415

Provides Info Re Plant Implementation of 10CFR50.44 & NUREG- 0737,Item II.E.4.1 Re Hydrogen Recombiners,Per 900518 Meeting & Insp Repts 50-250/90-13 & 50-251/90-13.Agreement Re Use of External Recombiners Will Be Reactivated

ML17348A415
Person / Time
Site:	Turkey Point
Issue date:	07/16/1990
From:	Harris K FLORIDA POWER & LIGHT CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
RTR-NUREG-0737, RTR-NUREG-737, TASK-2.E.4.1, TASK-TM L-90-263, NUDOCS 9007240055
Download: ML17348A415 (6)

Text

ACCELERATED DISTRIBUTION DEMONSTRATION SYSTEM REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)

SSION NBR:9007240055 DOC.DATE: 90/07/16 NOTARIZED: NO DOCKET II CIL:50-250 Turkey Point Plant, Unit 3, Florida Power and Light C 05000250 50-251 Turkey Point Plant, Unit 4, Florida Power and Light C 05000251 AUTH. NAME AUTHOR AFFILIATION HARRIS,K.M. Florida Power & Light Co.

RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)

SUBJECT:

Responds to commitment for hydrogen recombiners,per Insp Repts 50-250/90-13 & 50-251/90-13.

DISTRIBUTION CODE: IEOID COPIES RECEIVED:LTR ENCL SIZE:

TITLE: General (50 Dkt) -Insp Rept/Notice of Vio ation Response NOTES RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL PD2-2 PD 1 EDISON,G INTERNAL: AEOD, AEOD/DEIIB AEOD/TPAD DEDRO NRR MORISSEAU,D NRR SHANKMAN,S NRR/DLPQ/LPEB10 NRR/DOEA DIR 11 NRR/DREP/PEPB9D NRR/DRIS/DIR NRR/DST/DIR SE2 NRR/PMAS/I LRB12 NUDOCS-ABSTRACT OE OGC/HDS2 G FILE 02 RGN2 FILE 01 EXTERNAL: LPDR NRC PDR NSIC NOTE TO ALL "RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE WASTE! CONTACT THE DOCUMENT CONTROL DESK, ROOM Pl-37 (EXT. 20079) TO ELIMINATEYOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEED!

AL NUMBER OF COPIES REQUIRED: LTTR 22 ENCL

P.O. Box14000, Juno Beach, FL 33408.0420 JUL 16 1990 L-90-263 10 CFR 50.44 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D. C. 20555 Gentlemen:

Re: Turkey Point Units 3 and 4 Docket No. 50-250 and 50-251 Response to NRC Inspection Report Number 50-250/251-90-13 Regarding Licensees Commitment For Hydrogen Recombiners On May 18, 1990, Florida;*Power and Light, during a meeting with the NRC concerning NRC Inspection 50-250/251-90-13, agreed to provide the NRC with information concerning Turkey Point,'s implementation of 10 CFR 50.44 "Standards For Combustible Gas Control System in Light-Water-cooled power reactors," and NUREG 0737r item II.E.4.1, "Dedicated Hydrogen Penetrations". This commitment was included as unresolved item 250, 251/90-13-01 of NRC Inspection Report 50-250/251 13 dated June 15, 1990.

NUREG 0737, Item II.E.4.1, requires licensees to provide containment penetration systems for external recombiner or purge systems that are dedicated to that service only and that meet the redundancy,,and single failure requirements of General.

Design Criteria 54 and 56 of Appendix A to 10 CFR 50. The penetrations must be sized to satisfy the flow requirements of the recombiner or purge system. Turkey Point Units 3 and 4 have redundant purge connections which are independent of the large containment penetrations. By letter L-80-16, dated January 11, 1980, FPL compared this design. to the design criteria specified in NUREG 0578, item 215.a (TMI Item II.E.4.1). At that time, Turkey Point did not employ hydrogen recombiners.

On April 17, 1980, Schweaner (NRC) to Uhrig (FPL), the NRC provided its safety evaluation (SE) accepting Turkey Point

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plant's actions taken to satisfy the TMI lessons learned category "A" items. As stated in the NRC SE, FPL agreed to

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90072400. 900716 F'DR tJ ADOCK 05000250 PDC an FPL Group company

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re-evaluate the flow requirements of the hydrogen purge system for a, post-accident situation. Per Inspection reports 50-250/251-81-10, dated June 18, 1981, the NRC closed TMI item II.E.4.1 (NUREG 0578, item 2.1.5.a) for Turkey Point Units 3 and 4, as well as the open item from the NRC's April 7, 1980 SE, based on the design of the Turkey Point Post-Accident Containment Vent System.

On December 2, 1981, 10 CFR 50.44 was amended to require plants that do not have recombiners to have the capability to install external recombiners.'ollowing review of the amended rule, Turkey Point elected to install piping and electrical service for the installation of an external hydrogen recombiner in accordance with 10 CFR 50.44. As stated in the NRC Inspection Report 50-250/251-90-13, Turkey Point developed an off-normal procedure providing instructions on how to obtain a hydrogen recombiner if the need arises.

Previously, Turkey Point had obtained an agreement with other utilities for the use of an external recombiner. Turkey Point is now actively evaluating a reactivation of this agreement and a possible similar agreement with a different utility group. When this agreement is completed, the hydrogen recombiner will be brought on site to verify system operability.

Should you have any questions on this information, please contact us.

Very truly yours, arz'is Vic President Tur y Point Plant Nuclear KNH/DPS/ds cc: Stewart D. Ebneter, Regional Administrator, Region II, USNRC Senior Resident Inspector, USNRC, Turkey Point Nuclear Plant

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