ML19295C028
| ML19295C028 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 11/28/1975 |
| From: | Oconnor P Office of Nuclear Reactor Regulation |
| To: | Ziemann D Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8010150735 | |
| Download: ML19295C028 (4) | |
Text
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NOV 2s B75 m.
Dennis L. Ziemann, Chief, Operating Reactors Branch #2, RL DOCKET NO. S0-10 LICENSEE: CO:NONWEALTH EDISON COMPA!N (CECO)
FACILITY: DRESDEN NUCLEAR PONER STATION, UNIT 1 SITARY OF MEETING HELD ON NOVEMBER 12,197S TO DISCUSS CONFOR'WiCE h'ITI!
TiiE CRITERIA 0F IEEE-279 On November 12, 1975 representatives of Ceco net with the staff to discuss the extent that the Dresden 1 design differs from the criteria and recoxnendations of IEEE-279.
A list of attendees is enclosed.
Significant points discussed are sunnarized below:
1.
Dresden 1 Design Features Not in Conformance With IEEE-279 CECO's representatives presented a natrix which identified the itens of :nonconformance with the 21 criteria of IEEE-279 for each of the Presden 1 najor subsystems.
2.
Desinn Inprovements Proposed by CECO to Increase Dresden 1 Confernance With IEEE-279 CECO representatives described actions to be taken relative to installation of a fire detection and suppression system in the Dresden 1 cable tunnni and the planned upgrading of instrumentation inside the containment that cannot be docunented as being qualified to operate under Design Ensis Accident environmental conditions.
3.
.Tustification for Variance from the Criteria of IEEE-279 Ceco representatives prcVided bases for their position that a complete electrical retrofitting of Dresden Unit 1 is impractical and unjustified.
the bases included:
a.
Operating lfistory
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b.
?bsence of connon damage inode such as high energy lines or rotat ng co'tip tent in areas such as the cable tunnel where adequate sepa-ration has not been provided.
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The staff provided clarification to the licensee in several areas relatir.g to our methods of analyzing single failures and requested that CECO submit the information, that they provided orally at this meeting, as soon as possible on the Dresden 1 Docket. The following infor: ration was specifically requested:
a.
A natrix identifying the items of nonconformance with the 21 criteria of IEEE-279 for each of the Dresden 1 najor sub-systems.
b.
A detailed description of the actions planned by CECO to provide increased confomance with IEEE-279 in the above aress of nonfonfomance.
c.
JustificaGon, including cost-benefit analyses, where relied on, for items of nonconformance not being corrected.
P. h' O!Connor Operating Reactors Dranch P2 Division of Reactor Licensing
Enclosure:
List of Attendees c'
cc:
Commonwealth Edison Company ATfN:
Mr. R. L. Bolger Assistant Vice President Post Office Box 767 Chicago, Illinois 60690
'pdrConnor[go RL:0RB #2 RLORB #2 i
DLZiemann
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form MC.318 (Rev. 9 53) AICM 0240 W u. s. novaaNM ENT PRINTING OFMCE31974 526186 l
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CCMMONWEALTH EDISON 'FEETING NOVEMBER 12, 1975 LIST OF ATTENDEES Commonwealth Edison E. Budzichowsk G. Abre11 H. K. Stolt J. E. Hausman Fluor Pioneer, Inc.
L. J. Charmoli D. E. Hanson NRC Staff P. W. O'Connor R. F. Warnick D. W. Hayes V. D. Thomas D. L. Ziemann T. A. Ippolito f
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s DISTRIBWION FOR MEETING StM1ARY Docket
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Sh~ao NRC PDR D. Ross Local PDR
--T. Novak ORB #2 Reading
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Ippolito NRR Reading B. Grimes B. Rus ch'e M. Spangler E. G. Cas e R. Ballard D. Eisenhut J. Kastner R. S. Boyd W. Gammill K. R. Goller R. Heineman T. J. Carter R. F. Fraley, ACRS (16)
R. C. DeYoung S. Varga V. A. Moore Proj ect Manager -
D. J. Skovholt EP Proj ect Manager R._ P. Denis e. _
Attorney, OELD D. R. Muller OIGE (3)
D. Vassallo R. Diggs W. Butler NRC Participants 0.~.Parr T. B. Abernathy, MIE J. Stolz K. Kniel A. Schwencer P. Collins R. Vollmer R. Houston R. Purple G. Lear
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R. Reid
'R. Clark T. Speis G. Knighton I.
G. Dicker B. Youngblood W. Regan R. Tedesco R. Maccary V. Stello H. Denton J. Collins G. Lainas V. Benaroya J. Knight S. Pawlicki
.