ML18019A301

Advises That Calibr of Accelerometers Will Be Performed Using Tool Which Verifies Channel Alarms Upon Impact within Specified Distance,Per Reg Guide 1.33.Actions Acceptable to Resolve SER Open Item 30

ML18019A301
Person / Time
Site:	Harris
Issue date:	08/05/1985
From:	Zimmerman S CAROLINA POWER & LIGHT CO.
To:	Harold Denton Office of Nuclear Reactor Regulation
References
RTR-REGGD-01.133, RTR-REGGD-1.133 NLS-85-238, NUDOCS 8508080461
Download: ML18019A301 (6)

Text

Carolina Po~aer 3 t.:th)>"onoon~AUG 0 5)S85 Mr.Harold R.Denton, Director Office of Nuclear Reactor Regulation United States Nuclear Regulatory Commission Washington, DC 20555 SHEARON HARRIS NUCLEAR POWER PLANT UNIT NO.1-DOCKET NO.50-000 LOOSE PARTS MONITORING SYSTEM CALIBRATION SERIAL: NLS-85-238

Dear Mr.Denton:

By letter dated October 28, 1983, Carolina Power R Light Company (CPRL)submitted a detailed description of the Metal Impact Monitoring System (MIMS)used at the Shearon Harris Nuclear Power Plant.The NRC reviewed this submittal and found it to be an acceptable response to the Draft Safety Evaluation Report Open Item No.30, as documented on page 0-30 of the Safety Evaluation Report.In the October 28, 1983 submittal,Section II.A, Items 2 and 3, CPRL described the methods to be used to calibrate the accelerometers and conduct system tests.The calibration described in that submittal involved removing the accelerometers from their installed locations, mounting the accelerometers on a vibration calibrator and observing the output of the accelerometer.

The system test consisted of impacting the reactor vessel or steam generator in the vicinity of the accelerometer and observing the response of the system.In lieu of these tests, CPRL will perform testing and calibration using a tool , that provides a calibrated impact (e.g., 0.5 ft.-lbs.).

The tool will be used to verify that each channel alarms upon an impact within a specified distance (e.g., 0.5 ft.-lbs.at a distance of 3 ft.).Such a test conforms with the recommendations of Regulatory Guide 1.133 Position C.a.(3)and provides a means to calibrate the accelerometers without removal of the monitors.We find that this change is acceptable because it provides the same level of assurance that the MIMS is operating properly and it provides a test which is in conformance with the recommendations of Regulatory Guide 1.133.If you have any questions, please contact me.Yours very truly,, 3HE/ccc (1672GAS)S..Zim erman M ger Nuclear Licensing Section Cct Mr.B.C.Buckley (NRC)Mr.G.F.Maxwell (NRC-SHNPP)

Dr.3.Nelson Grace (NRC-RII)Mr.G.A.Schwenk (NRC-CPB)Mr.Travis Payne (KUDZU)Mr.Daniel F.Read (CHANGE/ELP)

Wake County Public Library 8508080+gf 850805@DR*DOCg 0500040 E Mr.Wells Eddleman Mr.3ohn D.Runkle Dr.Richard D.Wilson Mr.G.O.Bright (ASLB)Dr.3.H.Carpenter (ASLB)Mr.3.L.Kelley (ASLB)411 Fayetteville Street~P.O.Box 1551~Saic>r~'t,"

REGULATO INFORMATION DISTRIBUTION STEM (RIDS)AGCOECS ION NBR N 8508080461 OOC~DATK'5/08/05 NOTARIZED:

NO DOCKET FACIL:50 400 Shear on Harris Nuclear Power Plantr Unit it Carolina 05000400'AUTrt,NAME AUTHOR Af FILIATION ZIHMKRMANr S,R, Car ol ina Power 8 Light Co~REC IP~NAME:,REC IP IEN T AF F IL I ATION OENTON<H~RQ Office of Nuclear Reactor Regulationr Dir'ector'UBJECT:

Advises that calibr of accelerometers will be per'formed using tool which verifies channel alarms upon impact within specified distancerper Reg Guide 1~33'ctions'cceptablei to resolve SER Open f.tern 30+DISTRIBUTION CODE'!800 1 0'OPIES RECEIVED t LTR ENCL SIZE~-'o,./TITLKi Licensing.Submittal:

PSAR/FSAR Amdts.8 elated Gorr espondence-NOTES;RECIPIENT IO CODE/NAME NRR/OL/ADL NRR L83 LA INTERNAL: ACRS 41 ELO/HOS1 IE/OEPER/KPB 36 NRR ROKpM,L NRR/DE/CKB il NRR/OK/EQB 13 NRR/DE/MKB 18 NRR/OK/SAB 24 NRR/OHFS/HFEB40 NRR/OHFS/PSRB NRR/OS I/AEB 26 NRR/OS I/CPB 10, NRR/DSI/ICSB 16 NRR/DSI/PSB 19 NRR/DSI/RSB 23.RGN2 EXTERNAL;24X OMB/OSS (AMOTS)NRC PDR'2 PNL GRUELgR COPIES LTTR KNC 1 1 6.1 1 1 1 2 1 1 1 1 1 1 1 1 1 3 1 1 1 1 1 1 1 1 RECIPIENT ID CODE/NAME NRR L83 BC BUCKLKYrB 01 IE/DQAVT/QA821 NRR/DE/AEAB NRR/DF/EHEB NRR/OK/GB 28 NRR/OE/MTEB 17 NRR/DE/SGEB 25 NRR/OHFS/LQB 32 NRR/DL/SSPB NRR/OS I/ASB NRR/DS I/CSB 09 NRR/OSI/METB 12 NRR/DS I/RAB 22 REG FILE 04 RM/DDAMI/MI 8 BNL(AMOTS ONLY)LPDR 03'JS I C 05 COPIES LTTR EN 1 1 l.l.0'2 1-1~TOTAL NURSER OF COPIES REQUIRED: LTTR 58 ENCL I REGULAT INFORMATION DISTRIBUTION STEM (RIDS)A C GE3 S I ON N 8 R~8 5 0 8 0 8 0 4 6 1 0 0 C~D A T E 8 5/0 8/0 5 N 0 T A R'I Z E 0 I<0 FACIL!50 400 Shearon Harris Nuclear Power Plantr Unit,]~Carol:ina'AUTH;NAME AUTHOR AFF IL'I ATION ZIMMERMANi8,R, Car ol ina Power" 5 Light Co~RECIP,NAME)

RECIPIENT AFFILIATION DENTONrHiRe Office of Nuclear Reactor Regulatianr Director

SUBJECT:

Advises that" calibr of,accelerometers will be performed using tool which verifies channel alarms upon.impact.withip specified distancegper Reg Guide]e33 Actions'cceptable'o resolve SER Open Item 30, DOCKET 05000400 DISTRIBUTION CODE!80010 COPIES RECEIVED:LTR ENCL SIZf e: 'ITLEi Licensing Submittal:.PSAR/FSAR Amdts 8 elated Cor r espondence'OTES; REC IP IENT=IO CODE/NAME~

NRR/OL/AOL NRR L83 LA COPIES LTTR ENC 1 1 RECIPIENT ID CODE/NAME NRR L83-BC BUCKLEYrB 01 COPIES'TTR'N 1 INTERNAL!ACRS 41 ELD/HDS]IE/OEPER/EPB NRR ROErM~L NRR/DE/CEB 11 NRR/DE/EQB 13 NRR/OE/MEB 18 NRR/OE/SAB 24 NRR/DHFS/HFE840.

NRR/OHFS/PSRB NRR/OS I'/AEB.26 NRR/DS I/CPB 10, NRR/OSI/ICSB 16 NRR/OS I/PSB 19 NRR/DSI/RSB 23 RGN2 EXTERNAL)24X DMB/OSS (AMDTS)NRC PDR 02, PNL.GRUELtR 6 1 1 1 1 2 1 1-1 1 1.1 1 1 1 3 ADM/LFMB IE FILE IE/DQAVT/QABR]>>

NRR/DE/AEAB NRR/DE/EHEB NRR/DE/GB 28 NRR/OE/I'1TEB 17 NRR/DE/SGEB 25 NRR/DHFS/LQB 32 NRR/DL/SSPB NRR/DS I/ASB NRR/DS I/CSB 09 NRR/DSI/METB 12 RAB 22 R G FIL 04 I/MI8 BNL(AMDTS ONLY)LPDR.03'SIC 05'-1-1 1 1 2 1 1 1 1 1 1 1 1 1 1 1~1]r 0-'2~]>>]1>>TOTAL NUMBER OF COPIES REQUIRED: LTTR 52 ENCL 4

~I vhS X)gl)X))),I f lAX)'I)X)v X,<<))f)>tv E$xl'll)I III P II',"x x.>).,f>f)IIV t~')C II r<<rr SX'fr)tf'1 t I',, f f-)lite>1 I i)v),ii VV>ggr 8.yt'"v 3>,l v;I)I fli f'0"v)iv<;).+ilv,.;x~j>'Ig X>),)v>ltd X PQP>~tt X'$I'jf>VI,)'>yq)'1>"-I)cv X rex."'s<<f,)x>>'~X f)'>""v f'>>I')3'$" jvt'k~>jf f'l f X I'I 0 tl X"a>0 vgt'I'i I')I f i'~>'tT, X tl~v)R'tv x")%,v)0)tt f rent vj>I I~I, I I>Iii, f>>i.'x'o f g lt,)l x>xt,hv list vvf1 g f,ll o)If g f ,"I, kf T J'l'<>>>1vl f)tt'$~i,, ll)C tl I'tg Kl fbi I l haft.X<<a'x)),1 I tvl)>x Carolina Power&Light Company AUG 0 5)985 Mr.Harold R.Denton, Director Office of Nuclear Reactor Regulation United States Nuclear Regulatory Commission Washington, DC 20555 SHEARON HARRIS NUCLEAR POWER PLANT UNIT NO.1-DOCKET NO.50-000 LOOSE PARTS MONITORING SYSTEM CALIBRATION SERIAL: NLS-85-238

Dear Mr.Denton:

By letter dated October 28, 1983, Carolina Power k Light Company (CPRL)submitted a detailed description of the Metal Impact Monitoring System (MIMS)used at the Shearon Harris Nuclear Power Plant.The NRC reviewed this submittal and found it to be an acceptable response to the Draft Safety Evaluation Report Open Item No.30, as documented on page 0-30 of the Safety Evaluation Report.In the October 28, 1983 submittal,Section II.A, Items 2 and 3, CPRL described the methods to be used to calibrate the accelerometers and conduct system tests.The calibration described in that submittal involved removing the accelerometers from their installed locations, mounting the accelerometers on a vibration calibrator and observing the output of the accelerometer.

The system test consisted of impacting the reactor vessel or steam generator in the vicinity of the accelerometer and observing the response of the system.In lieu of these tests, CPRL will perform testing and calibration using a tool that provides a calibrated impact (e.g., 0.5 ft.-lbs.).

The tool will be used to verify that each channel alarms upon an impact within a specified distance (e.g., 0.5 ft.-lbs.at a distance of 3 ft.).Such a test conforms with the recommendations of Regulatory Guide 1.133 Position C.a.(3)and provides a means to calibrate the accelerometers without removal of the monitors.We find that this change is acceptable because it provides the same level of assurance that the MIMS is operating properly and it provides a test which is in conformance with the recommendations of Regulatory Guide 1.133.If you have any questions, please contact me.Yours very truly, 3HE/ccc (1672GAS)S..Zim erman M ger Nuclear Licensing Section CC: Mr.B.C.Buckley (NRC)Mr.G.F.Maxwell (NRC-SHNPP)

Dr.3.Nelson Grace (NRC-RII)Mr.G.A.Schwenk (NRC-CPB)Mr.Travis Payne (KUDZU)Mr.Daniel F.Read (CHANGE/ELP)

Wake County Public Library 850S0804Si 850805 pDR ADocg, 05000400 E PDR Mr.Wells Eddleman Mr.3ohn D.Runkle Dr.Richard D.Wilson Mr.G.O.Bright (ASLB)Dr.J.H.Carpenter (ASLB)Mr.3.L.Kelley (ASLB)ggi itg 411 Fayettevilte Street o P.O.Box 1551 o Raleigh, N.C.27602

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