ML20199H582

Forwards SE Re Ampacity Derating Issues Due to Application of Thermo-Lag Fire Barrier Matl at Plant

ML20199H582
Person / Time
Site:	Davis Besse
Issue date:	01/20/1999
From:	Hansen A NRC (Affiliation Not Assigned)
To:	Jeffery Wood CENTERIOR ENERGY
Shared Package
ML20199H588	List: ML20199H582 ML20199H593
References
TAC-M82809, NUDOCS 9901250245
Download: ML20199H582 (4)

Text

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January 20, 1999 I Mr. John K. Wood Vice President - Nuclear, Davis-Besse FirstEnergy Nuclear Operating Company Davis-Besse Nuclear Power Station 5501 North State Route 2 Oak Harbor, OH 43449-9760

SUBJECT:

SAFETY EVALUATION ADDRESSING THERMO-LAG RELATED AMPACITY DERATING ISSUES FOR DAVIS-BESSE NUCLEAR POWER STATION, UNIT NO. 1 (TAC NO. M82809)

Dear Mr. Wood:

By letter dated November 5, 1996, you submitted your response to the NRC request for additional information dated October 9, 1996, related to ampacity derating issues due to application of Thermo-Lag fire barrier material at the Davis-Besse Nuclear Power Station. Your response was supplemented by an evaluation dated September 10, 1997.

The U.S. Nuclear Regulatory Commission (NRC) staff has completed its review of your submittal. The results of the review are documented in the enclosed safety evaluation.

On the basis of its review, the staff has concluded that the ampacity derating analysis results are acceptable and there are no significant safety hazards associated with the application of ampacity derating methodology at Davis-Besse. You should retain all documentation related to the resolution of the ampacity issue for future NRC audits or inspections.

If you have any questions regarding this matter, please contact me.

Sincerely, Original signed by: [

Allen G. Hansen, Project Manager Project Directorate III-2 '/

Division of Reactor Projects III/IV Docket No. 50-346 O

Enclosure:

Safety Evaluation cc w/ encl: See next page DISTRIBUTION:

Docket File PUBLIC THarris (TLH3)

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• SRichards S &

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OFFICIAL RECORD COPY 17::;41

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r January 20, 1999 Mr. John K. Wood Vice President - Nuclear, Davis-Besse FirstEnergy Nuclear Operating Company Davis-Besse Nuclear Power Station 5501 North State Route 2 Oak Harbor, OH 43449-9760

SUBJECT:

SAFETY EVALUATION ADDRESSING THERM 0-LAG RELATED AMPACITY DERATING ISSUES FOR DAVIS-BESSE NUCLEAR POWER STATION, UNIT NO. 1 (TAC NO. M82809)

Dear Mr. Wood:

By letter dated November 5, 1996, you submitted your response to the NRC request for additional information dated October 9,1996, related to ampacity derating issues due to application of Thermo-Lag fire barrier material at the Davis-Besse Nuclear Power Station. Your response was supplemented by an evaluation dated September 10, 1997.

The U.S. Nuclear Regulatory Commission (NRC) staff has completed its review of your submittal. The results of the review are documented in the enclosed:

safety evaluation. -

( On the basis of its review, the staff has concluded that the ampacity derating L analysis results are acceptable and there are no significant safety hazards associated with the application of ampacity derating methodology at Davis-Besse. You should retain all documentation related to the resolution of the ampacity issue for future NRC audits or inspections.

If you have any questions regarding this matter, please contact me.

Sincerely, Original signed by:

' Allen G. Hansen, Project Manager Project Directorate III-2 Division of Reactor Projects III/IV Office of Nuclear Reactor Regulation Docket No. 50-346

Enclosure:

Safety Evaluation l

! cc w/ encl: See next page DISTRIBUTION:

Docket File PUBLIC THarris (TLH3)

PD33 r/f EGA1 AKugler OGC EELB ACRS GGrant, Region 3 DOCUMENT NAME: G:\PD33\DAVISBES\DBM82809.LTR *No major changes to SE j OFFICE LA:PD32 f E PM:PD32 w l( BC:EELB l PD:PD32 6 NAME EBarnhillW bc AHanserv5L/ JCalvo

• SRichards 54 l DATE l /20/ 99 V ' ,h776 12/3/97 i /k / %

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Q**C,f4}g January 20, 1999 Mr. John K. Wood Vice President - Nuclear, Davis-Besse FirstEnergy Nuclear Operating Company Davis-Besse Nuclear Power Station 5501 North State Route 2 Oak Harbor, OH 43449-9760 l

SUBJECT:

SAFETY EVALUATION ADDRESSING THERM 0-LAG RELATED AMPACITY DERATING ISSUES FOR DAVIS-BESSE NUCLEAR POWER STATION, UNIT NO. 1 (TAC NO. M82809)

Dear Mr. Wood:

By letter dated November 5, 1996, you submitted your response to the NRC request for additional information dated October 9,1996, related to ampacity derating issues due to application of Thermo-Lag fire barrier material at the Davis-Besse Nuclear Power Station. Your response was supplemented by an evaluation dated September 10, 1997.

The U.S. Nuclear Regulatory Commission (NRC) staff has completed its review of your submittal. The results of the review are documented in the enclosed safety evaluation.

On the basis of its review, the staff has concluded that the ampacity derating analysis results are acceptable and there are no significant safety hazards associated with the application of ampacity derating methodology at Davis-Besse. You should retain all documentation related to the resolution of the ampacity issue for future NRC audits or inspections.

If you have any questions regarding this matter, please contact me.

Sincerely, m

Allen G. Hansen, Project Manager Project Directorate III-2 Division of Reactor Projects III/IV Office of Nuclear Reactor Regulation Docket No. 50-346

Enclosure:

Safety Evaluation cc w/ enc 1: See next page I

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Y" John K. Wood Davis-Besse Nuclear Power Station, Unit 1 FirstEnergy Nuclear Operating Company cc:

l Mary E. O'Reilly Robert E. Owen, Chief FirstEnergy Bureau of Radiological Health Davis-Besse Nuclear Power Station Service 5501 North State - Route 2 Ohio Department of Health i Oak Harbor, OH 43449-9760 P.O. Box 118 Columbus, OH 43266-0118 James L. Freels i Manager- Regulatory Affairs j FirstEnergy Nuclear Operating Company James R. Williams, Chief of Staff J Davis-Besse Nuclear Power Station Ohio Emergency Management Agency j 5501 North State - Route 2 2855 West Dublin Granville Road ,

Oak Harbor, OH 43449-9760 Columbus, OH 43235-2206

Jay E. Silberg, Esq. Donna Owens, Director ,

Shaw, Pittman, Potts Ohio Department of Commerce I

, and Trowbridge Division of Industrial Compliance )

2300 N Street, NW. Bureau of Operations & Maintenance Washington, DC 20037 6606 Tussing Road l P.O. Box 4009 ,

• Regional Administrator Reynoldsburg, OH .43068-9009 l U.S. Nuclear Regulatory Commission j 801 Warrenville Road Ohio Environmental Protection Agency 1 Lisle, IL 60523-4351 DERR-Compliance Unit  !

ATTN: Zack A. Clayton l Robert B. Borsum P.O. Box 1049 Babcock & Wilcox Columbus, OH 43266-0149 Nuclear Power Generation Division 1700 Rockville Pike, Suite 525 State of Ohio Rockville, MD 20852 Public Utilities Commission 180 East Broad Street Resident inspector Columbus, OH 43266-0573 U.S. Nuclear Regulatory Commission 5503 North State Route 2 Attomey General Oak Harbor, OH 43449 Department of Attomey 30 East Broad Street James H. Lash, Plant Manager Columbus, OH 43216 FirstEnergy Nuclear Operating Company Davis-Besse Nuclear Power Station President, Board of County 5501 North State Route 2 Commissioners of Ottawa County Oak Harbor, OH 43449-9760 Port Clinton, OH 43252

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