ML17304A743
| ML17304A743 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 11/09/1988 |
| From: | Karner D ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| Shared Package | |
| ML17304A744 | List: |
| References | |
| 161-01476-DBK-A, 161-1476-DBK-A, NUDOCS 8811220237 | |
| Download: ML17304A743 (8) | |
Text
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REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)
ACCESSION.NBR:8811220237 DOC.DATE: 88/11/09 NOTARIZED: NO DOCKET 5.
FACIL:STh~50-528 Palo Verde Nuclear Station, Unit 1, Arizona Publi 05000528 AUTH.NAME AUTHOR AFFILIATION KARNER,D.B.
Arizona Nuclear Power Project (formerly Arizona Public Serv RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)
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SUBJECT:
Forwards engineering analysis of equipment functionality w/> "
essential chiller sys imoperable
& summary of analysis.
I DISTRIBUTION CODE:
AOOID COPIES RECEIVED:LTR l
ENCL r
SIZE: 2+++~
P TITLE: OR Submittal:
General Distribution NOTES:Standardized plant.
05000528 8 RECIPIENT ID CODE/NAME PD5 LA CHAN,T INTERNAL: ACRS NRR/DEST/ADS 7E NRR/DEST/ESB 8D NRR/DEST/RSB 8E NRR/PMAS/ILRB12 OGC/HDS 1 RES/DSIR/EIB EXTERNAL: LPDR NSIC NOTES:
COPIES LTTR ENCL 1
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1 RECIPIENT ID CODE/NAME PD5 PD DAVIS,M ARM/DAF/LFMB NRR/DEST/CEB 8H NRR/DEST/MTB 9H NRR/DOEA/TSB 11 NUDOCS-ABSTRACT, RE Ol NRC PDR COPIES LTTR ENCL 2
4' 17Y-1 1+'OrE TO ALL <<RIDS<<RECIPIENTS.
PLEASE HELP US TO REMKZ WASTETH CXÃI'ACT THE DOCUMEKZ CONTROL DESK ROOM Pl-37 (EXT. 20079)
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Arizona Nuclear Power Project P.O. 8OX 52034
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PHOENIX, ARIZONA85072-2034 DONALD8, KARNER EXECUTIVE VICE PRESIDENT 161-01476-DBK/ACR November 9, 1988 Docket No.
STN 50-528 Document Control Desk U.
S. Nuclear Regulatory Commission Mail Station Pl-137 Washington, D.C.
20555
Dear Sirs:
Subject:
Palo Verde Nuclear Generating Station (PVNGS)
Unit 1, Analysis of Essential Chilled Water System LER 88-017-01 File'8-020-404'8-056-026 In accordance with your request to forward the subject analyses, please find the following documents:
1.
Engineering Analysis of Equipment Functionality with Essential Chiller System Inoperable:
a.
Summary b.
Mechanical Evaluation Volumes I 6c II c.
Electrical Evaluation d.,
Instrumentation
& Controls Evaluation e.
Reliability Analysis Evaluation 2.
Summary Analysis for Dose to Technician In addition, you have requested that, we specifically address the potential radiation exposure
.to a maintenance person dispatched to determine the reason the chilled water system was not functioning and the heat stress on personnel during the time from the initiation of the event until repair was completed.
A conservative estimate of the whole body and thyroid dose to a maintenance technician respectively are 20 REM and 106 REM.
A summary copy of the analysis is attached.
A review of the heat stress to the maintenance technician and the control room operators was also performed.
Since the chiller trouble shooting is 88il22023 05000528 PDR ADOCK PDC P
0
U.S.
NRC Document Control Desk Page 2
161-01476-DBK/ACR November 9, 1988 done in the below grade portion of the control building, and since this area contains a relatively low heat load, it is expected that the temperature will not significantly rise above the maximum design temperature of 104F.
Our review of this event.indicates that temperatures in the.control room will not exceed 110F in the time period that the control room operators must take corrective action, nor will the temperature in the chiller room exceed 110F during the time period that.the chiller technicians must perform corrective action.
Studies (e.g.,
NUMARC 87-00) suggest that long term occupancy in higher temperature environments does not prevent performance of tasks of various difficulties.
Such studies have been the basis of;guidance in the heating and ventilating industry handbooks (e.g.,
ASHVE [1950) and ASHRAE
[1985].
ASHRAE, in particular, correlates temperature, humidity, and pressure and concludes that light work at 110F and relative humidities up to 50% would not be intolerable.
Therefore, it is not expected that operator actions would be impacted significantly by the projected temperature and humidity conditions.
If you have questions about the analysis, please contact Gautam Sen (602) 371-4322.
DBK/ACR/rw Attachments cc:
J.
B. Martin M. J. Davis Jr.
(w/attachments by overnight mail)
T. J. Polich A. C. Gehr INPO Records Center G.
W. Knighton
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February 17, 1989 J
- DISTRIBUTION
'ocket File;.'DR LPDR PD 5 JLee DOCKET NO(S).
8TH 50-528
?Ir. Donald B. Karner Bxecutive Vice President Arizona Nuclear Power Project Post Office Box 52034 Phoenix, Arizona 85072-2034
SUBJECT:
ARIZONA PUBLIC SERVICE COMPAHY~ ET AL PALO VERDE HUCLEAR GENERATING STATIOH UHITql Notice of Receipt of Application., dated Draft/Final Environmental'tatement, dated Notice of Availability of Draft/final Environmental Statement, dated Safety Evaluation Report, or Supplement No.
dated Environmental Assessment and Finding of No Significant Impact, dated Q Notice of Consideration of Issuance of Facility Operating License or Amendment to Facility Operating License, dated QQ Hi-Weekly Notice; Applications and Amendments to Operating Licenses Involving No Significant Hazards Considerations, dated 2/8/89
[see page(s) ]
62l4 Exemption, dated Construction Permit No.
CPPR-
, Amendment No.
dated Facility Operating License No.,
Amendment No.
Order Extending Construction Completion Date, dated Monthly Operating Report for transmitted by letter dated
+ Annual/Semi-Annual Report-dated transmitted by letter dated The following documents concerning our review of the subject facility are transmitted for your information.
Enclosures:
As stated Office of Nuclear Reactor Regulation CC:
See next page FFICEI SVRNAIIE)
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NRC FORM 318 IIOIBOINRCM 0240 OFFICIAL RECORD COPY
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