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~

SERIAL: NLS-85-238 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

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,,

S.. Zim erman M ger Nuclear Licensing Section 3HE/ccc (1672GAS)

Cct Mr. B. C. Buckley (NRC) Mr. Wells Eddleman Mr. G. F. Maxwell (NRC-SHNPP) Mr. 3ohn D. Runkle Dr. 3. Nelson Grace (NRC-RII) Dr. Richard D. Wilson Mr. G. A. Schwenk (NRC-CPB) Mr. G. O. Bright (ASLB)

Mr. Travis Payne (KUDZU) Dr. 3. H. Carpenter (ASLB)

Mr. Daniel F. Read (CHANGE/ELP) Mr. 3. L. Kelley (ASLB)

Wake County Public Library 8508080+gf 850805

@DR *DOCg 0500040 E

411 Fayetteville Street ~ P. O. Box 1551 ~ Saic>r~ 't, "

REGULATO INFORMATION DISTRIBUTION STEM (RIDS)

AGCOECS ION NBR 8508080461 OOC ~ DATK'5/08/05 NOTARIZED: NO DOCKET it N

FACIL:50 400 Shear on Harris Nuclear Power Plantr Unit Carolina 05000400

'AUTrt,NAME AUTHOR Af FILIATION ZIHMKRMANrS,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 COPIES RECIPIENT COPIES IO CODE/NAME LTTR KNC ID CODE/NAME LTTR EN NRR/OL/ADL 1 NRR L83 BC 1 NRR L83 LA 1 BUCKLKYrB 01 1 INTERNAL: ACRS 41 6.

ELO/HOS1 1 l.

IE/OEPER/KPB 36 1 IE/DQAVT/QA821 l.

NRR ROKpM,L NRR/DE/AEAB 0' NRR/DE/CKB NRR/OK/EQB il 13 1

1 2

NRR/DF/EHEB NRR/OK/GB 28 2 NRR/DE/MKB 18 1 NRR/OE/MTEB 17 1-NRR/OK/SAB 24 1 NRR/DE/SGEB 25 1 ~

NRR/OHFS/HFEB40 1 NRR/OHFS/LQB 32 NRR/OHFS/PSRB 1 NRR/DL/SSPB NRR/OS I/AEB 26 1 NRR/OS I/ASB NRR/OS I/CPB 10, 1 NRR/DS I/CSB 09 NRR/DSI/ICSB 16 1 NRR/OSI/METB 12 NRR/DSI/PSB 19 1 NRR/DS I/RAB 22 NRR/DSI/RSB 23. 1 REG FILE 04 RGN2 3 RM/DDAMI/MI8 EXTERNAL; 24X OMB/OSS NRC PDR '2 (AMOTS)

PNL GRUELgR 1

1 1

1 1

1 1

1 BNL(AMOTS ONLY)

LPDR

'JS I C 03 05 TOTAL NURSER OF COPIES REQUIRED: LTTR 58 ENCL I

REGULAT INFORMATION DISTRIBUTION STEM (RIDS)

A C GE3 S I ON N8 R ~ 8 5 0 8 0 8 0 4 6 1 0 0 C ~ D ATE / /

85 08 05 N 0 T A R 'I Z E 0 I< 0 DOCKET FACIL!50 400 Shearon Harris Nuclear Power Plantr Unit, ]~ Carol:ina 05000400

'AUTH;NAME AUTHOR AFF IL'IATION 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, DISTRIBUTION CODE! 80010 COPIES RECEIVED:LTR ENCL SIZf e:

Licensing Submittal: .PSAR/FSAR Amdts 8 elated Cor r espondence'OTES;

'ITLEi REC IP IENT= COPIES RECIPIENT COPIES'TTR'N IO CODE/NAME~ LTTR ENC ID CODE/NAME NRR/OL/AOL 1 NRR L83- BC NRR L83 LA 1 BUCKLEYrB 01 1 INTERNAL! ACRS 41 6 ADM/LFMB ELD/HDS] 1 IE FILE 1-IE/OEPER/EPB 1 IE/DQAVT/QABR]>> 1 ]r NRR ROErM ~ L NRR/DE/AEAB 1 0-'

1 NRR/DE/CEB 11 1 NRR/DE/EHEB 1 NRR/DE/EQB 13 2 NRR/DE/GB 28 2 2 ~

NRR/OE/MEB 18 1 NRR/OE/I'1TEB 17 1 ]>>

NRR/OE/SAB 24 1- NRR/DE/SGEB 25 1 ]

NRR/DHFS/HFE840. 1 NRR/DHFS/LQB 32 NRR/OHFS/PSRB 1 NRR/DL/SSPB 1 NRR/OS I'/AEB. 26 1. NRR/DS I/ASB 1 NRR/DS I/CPB 10, 1 NRR/DS I/CSB 09 1 NRR/OSI/ICSB 16 1 NRR/DSI/METB 12 1 NRR/OS I/PSB NRR/DSI/RSB RGN2 19 23 1

1 3

R G FIL RAB I/MI8 05'-

22 04 1

1 1

EXTERNAL) 24X BNL(AMDTS ONLY) 1 DMB/OSS (AMDTS) LPDR. 1 ~

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03'SIC NRC PDR 02, 1 PNL. GRUELtR TOTAL NUMBER OF COPIES REQUIRED: LTTR 52 ENCL 4

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Carolina Power & Light Company

)985 SERIAL: NLS-85-238 AUG 0 5 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

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, S.. Zim erman M ger Nuclear Licensing Section 3HE/ccc (1672GAS)

CC: Mr. B. C. Buckley (NRC) Mr. Wells Eddleman Mr. G. F. Maxwell (NRC-SHNPP) Mr. 3ohn D. Runkle Dr. 3. Nelson Grace (NRC-RII) Dr. Richard D. Wilson Mr. G. A. Schwenk (NRC-CPB) Mr. G. O. Bright (ASLB)

Mr. Travis Payne (KUDZU) Dr. J. H. Carpenter (ASLB)

Mr. Daniel F. Read (CHANGE/ELP) Mr. 3. L. Kelley (ASLB)

Wake County Public Library 850S0804Si 850805 ggi pDR ADocg, 05000400 PDR itg E

411 Fayettevilte Street o P. O. Box 1551 o Raleigh, N. C. 27602

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