ML20096D756
| ML20096D756 | |
| Person / Time | |
|---|---|
| Site: | Limerick  |
| Issue date: | 08/17/1984 |
| From: | Kemper J PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | Schwencer A Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8409060284 | |
| Download: ML20096D756 (3) | |
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PHILADELPHIA ELECTRIC COMPANY 2301 MARKET STREET P.O. BOX 8699 PHILADELPHIA. PA.19101 n,
(215)841-4502
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AUS i 71984 Mr. Al Schwencer,. Chief Docket Nos:
50-357 Licensing Branch No. 2 50-353
, Division of Licensing U. S. Nuclear Regulatory Conmission Washington, D.C. 20555
Subject:
Limerick Generating Station, Units 1 and 2 Meteorological and Effluent Treatment Branch Wide Range Accident Monitor Calibration Factors
Reference:
PECO and NRC Conference Call 8/15/84.,'
File:
GOVT 1-1 (NRC)
Dear Mr. Schwencer:
As discussed' with the Meteorological and Effluent Treatrnent.
Branch reviewer In the reference conference call please find attached the additional infonnation requested concerning the High Range Noble Gas Effluent Monitor Calibration Factors.
Sincerely, Wih &
NW i
RJS/gra/08168403 cc: See" Attached Service List
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-LIE RICK GENERATING STATION Nk.m-,
IWIDE RANGE: ACCIDENT MONITOR: CALIBRATION FK, MS fsik
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~.TheWiqWRangeAccidentPtnitordetectorcalibrationfactorswere mj y%/
< evaluate'diddhg the L:oss-of-Coolant Accident. source term presented in M
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%SI:.ce the. isotopic mixture of the source term changes as a i AN :
. l function,of- 0Ime following-shutdown, the detector response also
- changes.. ' Over the. time period lfrom reactor shutdown to four days after
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shutdowngthe?chilbration factor changes by a factor of four. From four days' to 30 days, the calibration factor. Is constant..
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rder to' maintain the system accuracles within a factor of two in'accidr' dance with Regulatory Guide 1 97,.Rev. 2, the calibration J
Lfactor ean'bd changed at appropriate intervals following reactor f
shutdown. The xalibration factor is calculated on thc basis of either
%k the expected.:Isdtopic mix (FSAR) or Isotopic mix determined from a
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.On the basis of the FSAA source. term it will be appropriate to y", ichange'the calibration' factor at approximately'3 hours3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br />,'7_ hours,
=12; hours, 24~ hours) 2 da/s, and 4' day's following reactor' shutdown.
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. cc: Judge Lawrence Brenner (w/ enclosure)
F-Judge Peter A.-Morris (w/ enclosure)
Judge Richard F. Cole (w/ enclosure)
[
Troy B. Conner, Jr., Esq.
(w/ enclosure)
Ann P. Hodgdon,1Esq.-
(w/ enclosure)
.Mr.: Frank R. Romano (w/ enclosure)
Mr. Robert L. Anthony (w/ enclosure)
- Maureen Mulligan-(w/ enclosure)
Charles.W. Elliott, Esq.-
(w/ enclosure)
Zori G. Ferkin, Esq.
(w/ enclosure)
Mr. _ '1homas Gerusky
-(w/ enclosure)
Director, Penna.-Emergency (w/ enclosure)
Management Agency Angus Inve, Esq.
(w/ enclosure)
' David Wersan, Esq.
(w/ enclosure)
- Robert'J.'Sugarman, Esq.
(w/ enclosure)
Martha W. Bush, Esq.
(w/ enclosure)
- Spence W. Perry, Esq.
(w/ enclosure)
. Jay M. Gutierrez, Esq.
(w/ enclosure)
- Atomic Safety & Licensing Appeal Board (w/ enclosure)
Atomic Safety & Licensing Board Panel (w/ enclosure)
Docket & Service Section (w/ enclosure - 3 copies))
James Wiggins (w/ enclosure)
Timothy R._S.-Campbell (w/ enclosure) e
- i e
1
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