ML18030A313
| ML18030A313 | |
| Person / Time | |
|---|---|
| Site: | Susquehanna  |
| Issue date: | 06/16/1981 |
| From: | Curtis N PENNSYLVANIA POWER & LIGHT CO. |
| To: | Schwencer A Office of Nuclear Reactor Regulation |
| References | |
| RTR-NUREG-0654, RTR-NUREG-654 PLA-849, NUDOCS 8106180407 | |
| Download: ML18030A313 (4) | |
Text
REGULATOR NFORMATION DISTRIBUTION S FM (RIOS)
ACCESSION NBR:8106180407 OOC ~ DATE: 81/06/16 NOTARIZED:
NO DOCKET ¹ FACIL:50 387 Susquehanna Steam Electr ic Stations Unit 1, Pennsyl va 050~38.
50 388 Susquehanna Steam Electr ic Stations Unit 2R Pennsyl va.,5'000 88 AUTH;NAME AUTHOR AFFILIATION CURTISrN ~
WE Pennsylvania Power L Light Co ~
RECIP ~ 4AME RECIPIENT AFFILIATION SCHWENCERPA ~
Licensing Branch 2
SUBJECT:
Submits info re meteorological sysiin response.
to NRC" informal questions, Dual source power suoolies will be'rovided to botn primary 8 backup towers
~ FSAR will oe revised in mid Sept Diagram of orimary tower encl'ISTRIB~JTION COBE:
000'IS COPIES RECE IVES:LTR /
ENCL g SIZE:
TITLE: PSAR/FSAR AMOTS and Related Corr esoondence NOTES!Send ILE 3 copies FSAR R all amends F 1 cy.'BWR LRG PM(L,RIB) 05000387 Send IEE 3 copies FSAR 5 all amends' cy:BWR~LRG PM(CRIB).
05000388 REC IP I ENT IO CODE/NA<E ACTION!
4/D LICENSNG LIC BR ¹2 LA INTERNAL: ACCID EVAL BR26 CHEM ENG BR ii CORE PERF BR 10.
EMERG PREP 22 EMRG PRP LIC 36 FE'4A REP 'OIV 39 HUM FACT ENG 40 IKC SYS BR 16 L IC GUID BR 33 MATL ENG BR 17 MPA OELD POrr'ER SYS BR 19 QA BR 21 REAC SYS BR 23 SIT ANAL BR 24 COPIES LTTR ENCL 1
0 1
0 1
1 1
1 1
1 1
0 3
1 1
1 1
1 1
1 1
1 1
0 0
1 1
1 1
1 1
1 1
RECIPIENT IO CODE/NAME LIC BR ¹2 BC STARKgR ~
04 AUX SYS BR 27 CONT SYS BR 09 EFF TR SYS BR12 EMRG PRP OEV 35 EQUIP QUAL BR13 GEOSCIENCES 28 HYD/GFO BR 30 I8E 06 LIC QUAL BR 32 MECH ENG BR 18 NRC PDR 02 OP LIC BR
. 34 PROC/TST,REV 20 A4 S
BR22 Q~~F- - -
01 STRUCT ENG BR25 COPIES LTTR ENCL 1
0 1
1 1
1 1
1 1
1 1
3.
3 2
2 2
2 3
1 1
1 1
1 1
1-1 1
1 1
1 1
1 1
16 16 1
1 LPDR 03 1
1 TOTAL NU ABER OF COPIES REQUIRED LTTR EiVCL
TV/O NORTH NINTH STREET, *I.I.ENTOV/N, PA. 18101 PHONEs (215) 770-515 I tloi1MAttVA CURTIS Vice President-Engineenng 4 Constn.ction-PIucleat 770.5341 June 16, 1981 Mr. A. Schwencer, Chief Licensing Branch No.
2 Division of Licensing U.S. Nuclear Regulatory Commission Washington, D.C.
20555 SUSQUEHANNA STEAM Electric STATION UPGRADED METEROLOGICAL SYSTEM ER100450 FILE 841-2 PLA-849 Docket Nos.
50-387
~q, 3 )JP<
388
- f. ~(/r )if) 6 JU;; 1 7'1981 Q'i.s. ttttct~ <t' C0avat SSI0H
'~/,
Dear Mr. Schwencer:
The following information is in response to the Staff's informal questions regarging the meterological system.
l.
Based on the requirements of NUREG-0654 Appendix 2 and proposed Revision 1 to Regulatory Guide 1.23, the attached diagram outlines the upgraded meterological system using the existing meterological tower.
Except for the addition of a tipping-bucket rain gauge, all the instrumentation on the primary tower will be as described in the FSAR.
In addition,.a backup 10 meter pole will be provided (the location is being evaluated) with sufficient instrumentation to measure wind speed, wind direction and sigma Q.
These parameters will be available in the control room on strip charts and the TSC and EOF through'he plant process computer.
2.
Dual source power supplies will be provided to both the primary and backup towers.
A two-hour uninterruptible power supply will be provided for the primary tower.
3.
The emergency off-site dose projection for airborne release. from Susquehanna will utilize a gaussian dose projection model.
This Class A model will include fixed terrain correction factors as determined by our meterologist, and four stability classes.
4.
Remote interrogation capability for meterological data and dose projection results will be provided via the Emergency
Response
Computer System which will be functional by July, 1984.
Prior to that time, this data will be available for verbal transmittal to NRC.
goO~
5
/
8'3O6)8 G
Mr. A. Schwencer June 17, 1981 Page two The FSAR will be revised in mid-September to include the fuctional description of the upgraded meterological system.
The Emergency Plan will be revised at the same time to describe the radiological dose projection methods to be used at Susquehanna during emergencies.
truly your s, N.W.
Vice Curtis President-Engineering and Construction-Nuclear cc:
R.M. Stark
Upgraded Meteorological System Primary Tower 60M MS, WD, MV, Td, Td Instrument Ke IOM WS, LiD, WV, T, D
MS Wind Speed WD Wind Direction WV Mind Variability T
Ambient Temperature Td Temperature Difference D
. Dewpoint P
Precipitation Parameters Transmitter Translator Digitizer Power Supply Normal dual source supply, fed through an auto-transfer switch.
The supply to the auto-transfer switch is from the start-up buses.
Backup UPS (instrumentation only) hfet Tower Building MAG Tape Recorder Receiver Plant Process Computer KOF Strip Charts Control Room
.