ML20153B449

Forwards Request for Addl Info Re Proposed Mods to TS for Plant to Increase Present 1% Tolerance on Safety Mode Lift Setpoint for SRVs to 3%

ML20153B449
Person / Time
Site:	Perry
Issue date:	09/16/1998
From:	Pickett D NRC (Affiliation Not Assigned)
To:	Myers L CENTERIOR ENERGY
References
TAC-MA2290, NUDOCS 9809230125
Download: ML20153B449 (5)

Text

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September 16, 1998 Mr. Lew W. Myers l

Vice President - Nuclear, Perry Centerior Service Company P.O. Box 97, A200 Perry, OH 44081

SUBJECT:

REQUEST FOR ADDITIONAL INFORMATION REGARDING PROPOSED MODIFICATIONS OF THE SAFETY SETPOINT REQUIREMENTS FOR THE SAFETY RELIEF VALVES - PERRY NUCLEAR POWER PLANT, UNIT NO.1 '

(TAC NO. MA2290)

Dear Mr. Myers:

l Your htter of July 13,1998 (PY-CEl/NRR-2298L), proposed modifications to the technical i specit.ations for the Perry Nuclear Power Plant, Unit No.1, to increase the present 11%

tolerance on the safety mode lift setpoint for the safety / relief valves (SRVs) to i3E The staff has initiated its review and has determined that the enclosed request for additional information will be necessary to complete its review, f If you should have any questions regarding this request, please contact me at (301) 415-1364.

Sincerely, origim1 signed by:  !

Douglas V. Pickett, Senior Project Manager Project Directorate 111-3 Division of Reactor Projects - lil/IV Office of Nuclear Reactor Regulation

Enclosure:

As stated Docket NJ. 50-440 cc: see next page DISTRIBUTION.

PUBLIC PDill-3 R/F BBoger EGA1 . RBellamy GGrant, R3 DTerao, EMEB DOCUMENT NAME: G:\ PERRY \MA2290.RAI Ta receive a copy of this document, indicate in the box: "C" = Copv without enclosures "E" = Copy with enclosures "N" = No copy 0FFICE PM:PQIlh3 c- LA:PDIII-3 6 SL:EMEB NAME DPick'e'tl EBarnhillff/f DTerao* ,

DATE 09/t4/98- 09/If/98 09/02/98 09/ /98 09/ /98

• See Memo from DTerao to R Bellamy dated 9/2/98 0FFICIAL RECORD COPY 9809230125 990916 I

,  !:" = " r4  : NRC RLE CENTER BGPV

. i Septaber 16, 1998 i Mr. Lew W. Myers Vice President - Nuclear, Perry Centerior Service Company P.O. Box 97, A200 '

l Perry, OH 44081 j

SUBJECT:

REQUEST FOR ADDITIONAL INFORMATION REGARDING PROPOSED MODIFICATIONS OF THE SAFETY SETPOINT REQUIREMENTS FOR THE SAFETY F3 LIEF VALVES - PERRY NUCLEAR POWER PLANT, UNIT NO.1 (TAC NO. M.2290) l

Dear Mr. Myers:

Your letter of July 13,1998 (PY-CEl/NRR-2298L), proposed modifications to the technical specifications for the Perry Nuclear Power Plant, Unit No.1, to increase the present *1%

tolerance on the safety mode lift setpoint for the safety / relief valves (SRVs) to *3%. The staif has initiated its review and has determined that the enclosed request for additionalinformation will be necessary to complete its review, if you should have any questions regarding this request, please contact me at (301) 415-1364.

Sincerely, original signed by:

Douglas V. Pickett, Senior Project Manager Project Directorate ill-3 Division of Reactor Projects - Ill/IV Office of Nuclear Reactor Regulation

Enclosure:

As stated Docket No. 50-440 cc: see next page DISTRIBUTION:

PUBLIC PDill-3 R/F BBoger EGA1 RBellamy GGrant, R3 DTorao, EMEB DOCUMENT NAME: G:\ PERRY \MA2290.RAI Ta receive a copy of this document,indcate in the box: 'C" = Copy without enclosures *E" = Copy with enclosures "N" = No copy 0FFICE PM:PDIII .3 t- LA:PDIII-3 6 SL:EMEB NAME DPicKEtt EBarnhill fff DTerao*

DATE 09/t4/98 09//f/98 09/02/98 09/ /98 09/ /98

• See Memo from DTerao to R Bellamy dated 9/2/98 0FFICIAL RECORD COPY

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.i g NUCLEAR REGULATORY COMMISSION o WASHINGTON, D.C. 20666 4 001

September 16, 1998 l

l Mr. Lew W. Myers l Vice President - Muclear, Perry Centerior Service Company P.O. Bc.: 97, A200 Perry, OH 44081

SUBJECT:

REQUEST FOR ADDITIONAL INFORMATION REGARDING PROPOSED MODIFICATIONS OF THE SAFETY SETPOINT REQUIREMENTS FOR THE SAFETY RELIEF VALVES - PERRY NUCLEAR POWER PLANT, UNIT NO.1 (TAC NO. MA2290)

Dear Mr. Myers:

Your letter of July 13,1998 (PY-CEl/NRR-2298L), proposed modifications to the technical specifications for the Perry Nuclear Power Plant, Unit No.1, to increase the present *1%

tolerance on the safety mode lift setpoint for the safety / relief valves (SRVs) to i3%. The staff has initiated its review and has determined that the enclosed request for additional information will be necessary to complete its review.

If you should have any questions regarding this request, please contact me at (301) 415-1364.

Sincerely, V 9A%

Douglas V. Pickett, Senior Project Manager Project Directorate Ill-3 Division of Reactor Projects -lil/IV Office of Nuclear Reactor Regulaticn

Enclosure:

As stated Docket No. 50-440 cc: see next page

. 2 e

C L. Myers Perry Nuclear Power Plant, Units 1 and 2 Centerior Service Company cc: '

Mary E. O'Reilly James R. Williams  !

FirstEnergy - A290 Chief of Staff 10 Center Road Ohio Emergency Management Agency l Perry, OH 44081 2855 West Dublin Granville Road )

Columbus, OH 43235-7150 1 Resident inspector's Office l

U.S. Nuclear Regulatory Commission Mayor, Village of Perry  !

P.O. Ben 331 4203 Harper Street l Perry, OH 44081 Porry, (}H 44081-0331 Regional Administrator, Region lil Radiological Health Program U.S. Nuclear Regulatory Commission Ohio Department of Health 801 Warrenville Road P.O. Box 118 Lisle, IL 60532-4531 Columbus, OH 43266-0118 Sue Hictt Ohio Environmental Protection OCRE Interim Representative Agency 8275 Munson DER i-Compliance Unit Mentor, OH 44060 ATTP: Mr. Zack A. Clayton P.O. Llox 104b Henry L. Hegrat Colun bus, OH 43266-0149 .

Regulatory Affairs Manager  !

Cleveland Electric illuminating Co. Chairman Perry Nuclear Power Plant Perry Township Board of Trustees P.O. Box 97, A210 3750 Center Road, Box 65 Perry, OH 44081 Perry, OH 44081 l

FiatEnergy Corporation State of Ohio Michael Beiting Public Utilities Commission Associate General Counsel East Broad Street

-76 S. Main Columbus, OH 43266-0573 Akron, OH 44308 William R. Kanda, Jr., Plant Manager Mayor, Villag" -' North Perry Cleveland Electric liluminating Co.

l North Perry N ge Hall Perry Nuclear Power Plant '

4778 Lockwood Road P.O. Box 97, SB306 North Perry Villa *1e, OH 44081 Perry, OH 44081 i

Donna Owens, Director l Ohio Department of Commerce L Division of industrial Compliance j- Bureau of Operations & Maintenance l l 6606 Tussing Road 4

P O. Box 4009

. Reynoldsburg, OH 43068-9009 t

. L k

REQUEST FOR ADDITIONAL INFORMATION SAFETY / RELIEF VALVE SETPOINT TOLERANCE PERRY NUCLEAR POWER PLANT. UNIT NO.1 DOCKET NO. 50-440 l

1. Uncertainties of analysis parameters should be accounted for in the safety analyses used to justify new limits in the plant Technical Specifications (TSs). Provide a discussion of the Safety /Re!ief Valve (SRV) setpoint testing instrument accuracy and how this source of uncertainty is accounted for in the licensee's safety analysis associated with the proposed TS SRV setpoint tolerance.

2. Provide verification that the functional capability of all safety-related motor-operated valves has been evaluated for the larger differential pressure loads resulting from the increased SRV setpoint tolerance in accordance with the Generic Letters 89-10 and 96- ,

I 05 programs. In addition, provide verification that the functional capability of all safety-related air-operated and hydraulically-operated valves has not been adversely affected i by the increased SRV tolerance. l

3. The NRC Safety Evaluation for topical report NEDC-31753P, dated March 8,1993, stated that in order to increase the SRV setpoint tolerance from 11% to 13%, half of the SRVs should be tested every 18 months and all SRVs should be tested within 40 months. The licensee's letter dated July 13,1998, proposes to continue testing the SRVs less frequently in accordance with the plant inservice testing program. Pro ide the basis for testing the SRVs less frequently than that approved for the above topical report while increasing the SRV setpoint tolerance to i3%, or revise the proposed TS accordingly.

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