ML20040B039
| ML20040B039 | |
| Person / Time | |
|---|---|
| Site: | Byron  |
| Issue date: | 12/28/1981 |
| From: | Kiper K Office of Nuclear Reactor Regulation |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8201250029 | |
| Download: ML20040B039 (6) | |
Text
4 DEC 2 8 1981 bocket nos.:
STh Su-454 and LTh 60-455 nPPL iLid.T : Lumonwealth Loison Lompany FallLITY:
Dyron $tation buBJ LLT:
$UniinaY OF Asb hu.11ab A meeting was held December 1,1961 at the Byron Station near byron, Illinois with representatives from Lormonwealth Edison Loupany and Sargent b Lundy to ciscuss concerns raised by the Ituxiliary Systetas oranch during their review of the byron /braidwood FSAR. A list of attendees is given is Enclosure 1.
The following is an update of tne Abu open items baseu on our ciscussions during the raceting:
1.
J.5.2 Tornado ttissiles - based on tne applicant's dratt response to y 010.s3 and our observations at the site, be consider that adequate tornado missile protection is provideo for the nain steaa safety and reliet valve stacks and the spent fuel from failure of the fuel building freight door.
Ho. sever, we are not satisfied with the applicant's response concerning protection or the essential service water cooling tower fans, fan motors anc exposed piping or the dier.el generator exhaust stacks. The applicant agreed to reevaluate the protection for tnis equipment in response to our position that posi tive protection be provideo. The applicant also agreed to verify that the aain stean safety valve house ventilation exhaust is tornado missile protected. This will reuain an open itea pending satisfactory resol u ti on.
z.
3.6.1 ripe dreak outside Containuent - The applicant indicated that the l
analysis or protection of essential equip:itent outside containment from the et fects of high and uoderste energy pipe breaks in not coinplete.
l lherefore, conplete responses to y 010.40 anc Q 010.41 can not be provided for souetime. This c'll remain an open item pending
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satisfactory resolution.
3.
9.1.4 Fuel handling - The applicant agreco to revise the response to i
y ulu.4J to inuicate that the consequences of dropping of the fuel l
builcing crane load block will be includea in tne response to HURLL-0612 "Lontrol of Heavy Loads".
The applicant also agreed to provide a table of light loods inCludinb their kinetic energies When dropped f ron over the open reactnr vessel or spent fuel pool. This is now a conf 1rmatory 1 tem.
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9.2.2 Component Cooling Water - The applicant coaaitted to provide a sdfety grace inoiCation of 1035 of Coli.ponent Cooling water flow to the reactor coolant pumps. This item is now a confirmatory item.
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9.3.1 Compressed Air - (not included in ueeting notice) - The applicant comitted to accress coupliance of the instrument air system with ANSI ML 11.1 Standard anu icentity a pertootc sampling for instrument air yudl i ty.
This is a confirmatory item.
6.
9.3.3 Equipment end Floor trainage - The applicant is perforaing an evaluation of tne internal flood protection design for all safety related equipraent and will provice the results in the future. The' applicant also Cod.61tted to provide drawings indicating thdt check valves are provided in drain lines for redundant essential equipnent rooms. The internal flooding review will include the effects of rupture of all nonseismic Category I piping in safety related equiprent areas. This will remain an open iten pending satisfactory resolution.
7.
9.4.1 Control, loom HVAC - The applicont indicated that the P&ID symbols l
of fire compers actual identify - a cultiple dauper in the duct such i
that a single failure does not stop air flow to essential areas. Thus, tnis item is resolved.
8.
9.4.6 River 5creen house hYAC - The applicant comitted to include procedural steps unich will require that the essential service water riokeup pupps be started on loss of offsite pcwer when the outside air teraperature reaches 40 degrees F.
This item is technically resolved and will be closed upon formal docurwntation.
9.
10.3.1 liain Steam - The applicant indicated that the main steam power operateo relief valves (ataospheric dupp valves) will be modified to include a hydraulic operator with a fully Class Il power supply i
copoule or Deing operated frow the control rocu in any loss of offsite t
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power. This iteu is technically resolved and will be closed upon i
formal docueentation.
t 10.
10.4.5 Circulating Water hystea - The applicant will reevaluate the i
potential tlooding consequences resulting frou a circulating water l
system failure. This analysis will include the water level reached in the building assuming the total volurne of the cooling tower bcsin is displaced and will evaluate potential pathways for water flow i
to safety related equipment areas. This iten will remain open pending t
a satisfactory response.
t 11.
10.4.7 Main Feedwater and Londensate - The applicant couaitted to perform f
a waterhdfAler test in accoroanCe with the guidance of idlREG/CH-1606.
This item is technically resolved and will be closed upon formal i
documento tion.
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DEC 2 31981 12.
10.4.9 noxiliary i~eedwater -
as The applicant will provide auditional infon..ation to Justify a 7 day LLO with one auxiliary teeowater punp inoperable. The applicant agreed to include the startup feeuwoter pump in tech. Spec.
surveillance require wnts. This itea reuains open pending resolu-tion or our position for a 72 hour8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> LCO.
b) This applicant will review the potential consequences of air binding tne /fW pumps when transfering suction supply from the condensate storage tank to essential service water. This item remains open.
c) Tne applicant nas n',t cocaitted to provide a third /Eiri pump capable of operatio n in a loss of offsite power. This iten rauains open.
d) The applicant couaitted to tech. spec. an AF',1 pump oil supply equivalent to delivering the 200,000 gallons of condensate needed to shutdown. A backup oil supply can be provided from the standby oiesel generator oil storage tanks. This item is resolved.
e) ine applicant comitted to run a 46 hour5.324074e-4 days <br />0.0128 hours <br />7.60582e-5 weeks <br />1.7503e-5 months <br /> endurance test on all SEW punps including the startup puup. This item is tecnnically resolved and will ne closed upon formal docunentation.
f)
The applicent couaitted to provide an indepenaent verification of proper uh systeu valve position tollowing test and mainentanc.e.
The neans of accouplishing this was still undecideo. This is a confirmatory item.
In acuition to the above, we oiscusseo the iou preliuinary review of the uyron sdfe shutdown due to fire analysis. The applicant indicated that for certain fires, when a loss or of f site power is assumed and shutdown is accotaplisheo via natural circulation, the prioary coolant thot leg and cold leg) resistance temperature detectors (RTDs) can not acequately indicate TH and TC d5 II " I" the loops is too slow, and tne well detector is too great a netal nass. The l
Westinghouse owners group is aware of this proDie:a and is looking into it.
The staff will pursue this iten as well.
I Oririnc.1 signed by:
Kumuth L. *<iper Kennetn L. Kiper, Project fianager Licensing branch t;o. 1 l
Division of Licensing A,
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- OFFICIAL rtECORD COfY usam mi-m m snc com m oo-am uncu ouo
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Mr. Louis 0. DelCeorge Director of Nuclear Licensing Commonwealth Edison Company Post Office Box 767 Chicago, Illinois 60690 ccs:
Mr. William Kortier U. S. Nuclear Regulatory Commission Atomic Power Distribution Resident Inspectors Office
'.'estinghouse Electric Corporation 4448 German Church Road P. O. Box 355 Byron, Illinois 61010 Pittsburgh, Pennsylvania 15230 Ms. Diane Chavez Paul M. Murphy, Esq.
602 Oak Street, Apt. #4 Isham, Lincoln & Beale Rockford, Illinois 61108 One First National Plaza 42nd Floor Chitago, Illinois 60603 Mrs. Phillip U. Johnson 1907 Stra tford tane Rockford, Illinois 61107 Ms. Bridget Little Rorem Appleseed Coordinator 117 North Linden Street Essex, Illinois 60935 Dr. Bruce von Zelle n Department of Biological Sciences Northern Illinois University DeKalb, Illinois 61107 Mr. Edward R. Crass Nuclear Safeguards and Licensing Division Sargent X Lundy Engineers 55 East Monroe Street Chicago, Illinois 60603 Nuclear Reguletory Commission Pegion III Of fice of :nspection end Enforcement j
799 Roosevelt Road Glen Ellyn, Illinois 60137 Myron Cherry. Esq.
Cherry, Flynn and Kanter l
1 IBM Plaza, Suite 4501
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hjCag3, Illinnis 6C611 i
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ENCLOSURE 1 ASB Meeting December 1, 198)
NRC Staff J. Wermiel A. Singh R. Jaross ( Argonne National Lab)
C. Scheibelhut (Argonne National Lab)
Coneanwealth Edison Company K. Ainger R. Ward Sargent & Lundy K. Green S. Boeing T. Hottle Power Consultants, Inc.
J. LaVallee o
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MEETING SUMf4RY DISTR _IBUTION
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JDkketFile?ii.
G. Lear (U
J/;t/ dn.. -
"W NRC PDR' '
W. Johnston-
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Local PDR S. Pawlick' g 41 f/
TIC /NSIC/ Tera DEC 2 g 1981 V. Benaroya L " '-
y' Z. Rosztoczy 'b M
LB#1 Reading W. Haass
_ly\\ d H. Denton/E. Case D. Muller R. Ballard D. Eisenhut/M. Jambor W. Regan-R. Mattson
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B. J. Youngblood P. Check A. Schwencer F. Congel F. Miraglia
- 0. Parr 1
J. Miller F. Rosa G. Lainas W. Butler j
R. Vollmer W. Kreger I
. J. P. Knight R. Houston R. Bosnak F. Schauer L. Rubenstein j
R. E. Jackson T. Speis Project Manager K. Kiper/S. Chesnut M. Srinivasan
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Attorney, OELD J. Stolz M. Rushbrook S, Hanauer 0IE(3)
W. Gammill l
ACRS (16)
T. Murley E. Adensam F. Schroeder D. Skovholt
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M. Ernst NRC
Participants:
R. Baer C. Berlinger J. Wermiel K. Kniel A. Singh G. Knig'. ton R. Jaross (ANL)
A. Thadani C. Scheibelhut (ANL)
D. Tondi J, Kramer D, Vassallo P, Collins D. Ziemann I
bec: Applicant S Service List e
4 1.
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