ML060690160
| ML060690160 | |
| Person / Time | |
|---|---|
| Site: | Wolf Creek, Callaway  |
| Issue date: | 08/10/1984 |
| From: | Joseph Holonich, O'Connor P Division of Engineering |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| FOIA/PA-2006-0095 NUDOCS 8408210034 | |
| Download: ML060690160 (8) | |
Text
b U-1t.w- -j I Docket Nos., and FACILITY: APPLICANTi STN 5048 STH 50-483 Wolf Cre Callaway Kansas G UNITED 11TATES NUCLEAR REGULATORY COMMISSION WASHINGToE, 0. c. 205 AUG eok G~norhtfna~
Statinn-!, I , .t -I I I I I Plant, Unit 1I as and Electric Company , , jt. i ) iX LICENSEE:
Union Electric CompanY.
SUBJECT:
MINUTES OF AUGUST 10, 1984 MEETING SAFE SHUTDOWN ANALYtIS I; , i .1 i: TO01DSCUSS T11E SHUPPS On August 10, 1984 members of the staffimet with representatives from Union Electric Company, Kansas Gas and Electric Company, SNUPPS, and Bechtel to discuss the utilities' safe shutdown analysis.
Enclosure I Is a list of attendees.
I The meeting opened with a review of the events which lead to the August 10, 1984 meeting. During an NRC inspection of fire protoction at the Wolf Creek Station, the staff identified alconcern about the ability of the operators to obtain safe shutdownvfrom'outs1de the controllroom.
In particular, Isolation from the controltroxn did not appearladequate.
In response to this concern, the'utilities noted tthat tho isolation cagabilities of' the SHUPPS design were reviewed and approved by'tho NRC'staff.
ihis approval was documented In Supplement No. 3 to both lthe Wolf Croek and Callaway Safety Evaluation Reports. As a result ofthf:ol'nspectlon", thestaff'determined that the supplements were In error'and that the utilities wouldineed to take corrective actions, Bepause of this, the utilities requested a meeting.lext, the utilities discussedltheir safe shutdown anilysis'and the fact that there were certain actions which needed to be taken beforo tho auxiliary shutdcwn panel could be isolated fromi,tho control room. Of particular concern to tho staff was the problem of not being able to achieve isolation from the control room If a tire had caused ,ahot short In tho safe shutdown circuitry.
The NRC position Is that transfer switches should Isolate the needed safe shutdown equipment regardless of the situation In the control room.FA09g&?R1g40I
,: 2/5
'k ol ' ..i ;: , ;IWG 10 184 1,-2-The utilities rebutted that this was a different set of the safe shutdown analysis was reviewed and a different which had been previously approved by the staff.criteria against which scenario from that As a result of the above discussion It was apparent that there had been a miscomiunication between the staff nnd the utilities; however, this did not prtclude the need to meet the applicable isolation requirements.
These requirements are detailed In Enclosure
- 2. Because SNUPPS did not meet these criteria, the staff concluded that the supplements would need to be revised.The meeting ended with the utilities noting that this would Impact the Callaway full power ascension schedule and the Wolf Creek fuel load schedule.
Therefore, a formal request for on appeal would bo forwarded.
Joseph I. l ionich, Project Manager Licensing Brhnch No. I Division of Licensing
Enclosures:
As stated Pau W. O'Connor, Project Manager Licensing Branch No. I Division of Licensing rr B hto (84 8/p)/84ho~
cc: See next page CONI RENCrs: J h T hh:os 8(P/84 PO Connor 84 '/84 ,j
.10 1O9B4 2 The utilities rebutted that this was a different set of criteria the safe shutdown analysis was reviewed and a different scenario which had been previously approved by the staff.against which from that As a result of the above discussion It was apparent that there had been a miscommunication between the staff and the utilities; however, this did not preclude the need to meet the appl1cable isolation requirements.
These requirements are detailed in Enclosure
- 2. Because SNUPPS did not meet these criteria, the staff concluded that the supplements would need to be revised.The meeting ended with the utilities noting that this would impact the Callaway full power ascension schedule and the Wolf Croek fuel load schedule.
Therefore, a formal request for an appeal would be forwarded.
c4w ='1Oc5V Joseph 3. Holonich, Project Manager Licensing Branch No. I Division of Licensing
Enclosures:
As stated 4 °/ A/Paul W. O'Connor, Project Manager Licensing Branch No. 1 Division of Licensing cc: See next page
- iI SNUPPS I , I ..I Mr. D. F. Schnell Vice President
-Nuclear Union Electric Company P. 0. dox 149 St. Louis, Missouri 63166 Mr. Glen L. Koester Vice President
-Nuclear Kansas Gas and Electric Company 201 North Market Street P. O. Box 208 I Wichita, Kansas 67201 cc: Gerald Charnoff, Esq.Thomas A. Baxter, Esq.Shaw, Pittman, Potts & Trowbridge 1800 M Street, N. W.Washington, D. C. 20036 Mayor Howard Steffen Chamois, Missouri 65024 Jay Silberg, Esquire Shaw, Pittman, Potts & Trowbridge 1800 M Street, N. W.Washington, D. C. 20036 Kansas City Power & Light Company AT7H: Mr. D. T. McPhee Vice President
-Production 1330 Baltimore Avenue Kansas City, Missouri 64141 Mr. Nicholas A. Petrick Executive Director, SNUPPS 5 Choke Cherry Road Rockville, Maryland 20850 Mr. J, E. Birk Assistant to the General Counsel Union Electric Company St. Louis, Missouri 63166 Mr. Howard Bundy Resident Inspector/Wolf Creek NPS c/o U. S. NRC P. 0. Box 311 Burlington, Kansas 66839 Mr. Michael C. Keener State Corporation Commission State of Kansas Fourth Floor, State Office Buliding Topeka, Kansas 6612 Mr. John toiisler U. S. Nuclear Regulatory Commitsion Resident Inspectors Office RR *1 Steadman, Missouri 65077 Terri Sculley, Director Special Projects Division Kansas Corporation Commission State Office Building, 4th Floir Topeka, Kansas 66612 Mr. Donald W, Capone Manager -Nuclear Engineering Union Electric Company P. 0. Box 149 St. Louis, Missouri 63166 Ms. Mary Ellen Salava Route 1, Box 56 Burlington, Kansas 66839 Eric A. Fisen, Esq.Birch, Horton, Bittner & Moore 1140 Connecticut Avenue, N. w.Washington, D. C. 20036 Ms. Wanda Christy 515 N. 1st Street Burlington, Kansas 66839 Ms. Majorle Reilly Energy Chairman of the League of Womn Voters of University City, MO 7065 Pershing Avenue University City, Missouri 63130 Mr. Fred Lukay Presiding Judge, Montgomery County Rural Route Rhinoland, Missouri 65069 Professor William H. Miller Missouri Kansas Section, American Nuclear Society Department of Nuclear En9ineering 1026 Enginoerlng Building University of Mlssouri Columbia, Missou-l 662l1
- L : 0 t ; : I ' ' ~ '.; ,: : SNUPPSS-2-cc: Robert G. Wright Associate Judge, Eastern District County Court Callaway County, Missouri Route I1 Fulton, Missouri Lewis C. Green, Esq.Green, Hennings & Henry Attorney for Joint Intervenors 314 H. Broadway, Suite 1830 St. Louis, Missouri 63102 Mr. Earl Brown School District Superintendent P. 0. Box 9 Kingdom City, Missouri 65262 Mr. Donald Bollinger, Member Missoruians for Safe Energy 6267 Delmar Boulevard University City, Missouri 63130 Mr. Samuel J. Birk R. R. #1, Box 243 Morrlion, Missouri 65061 Mr. Harold Lottman Presiding Judge, Dasconade Countly Route I Owensville, Missouri 65066 John H. Simpson, Esq.Attorney for Intervenors 4350 Johnson Drive, Suite 120 Shawnee Mission, Kansas 66205 Mr. James G. Keppler U. S. Nuclear Regulatory Commission Region III 799 Roosevelt Road Glen Ellyn, Illinois 60137 Mr. John T. Collins U. S. Nuclear Regulatory Commission Reglon IV 611 Ryan Plaza, Suite 1000 Arlington, Texas 76011 Mr. Joe Mulholland Manager of Power Supply & Engineering Kansas Electric Power Cooperative, Inc.P. 0. Box 4877 Gage Center Station Topeka, Kansas 66604 C. Edward Peterson, Esq.Legal Division Kansas Corporation Comnission Fourth Floor State Office Buildin;Topeka, Kansas 66612 Brian P. Cassidy, Regional Counsel Fccral Emergency Management Agency Region I J, W. McCormack POCH Boston, Massachusetts 02109 A. Scott Cauger, Esq.Assistant General Counsel Missouri Public Service P. 0. Box 360 Jefferson City, Missouri for tho Conn.65101 Mr. John G. Reed Route I1 Kingdom City, Missouri 65262 Mr. Dan t. Bolef, President Kay Droy, Representative Board of Directors Coalition for the Environment St. Louis Region 6267 DOlmar Boulevard University City, Missouri 63130
- I <# 2 ,., S l I' ' i!. ; ! , .; "" , ENCLOSURE 1 ,I s *I.. .LIST OF ATTENDEES NRC Joe Holonfch R. Ebfrly R. Ferguson M. Murphy Jerry Wilson B. J. Youngblood Rich Stark William T. LeFave Marty Virgillo Charlp Ramsey Gordon Edison rom Wambach Nick Fioravante SHUPPS M. H. Fletcher KGAE 0. L. Maynard G. P. Rathbun Hels Hoadley UE Al Passwater Bechtel Patrick Ward Mohsen Tantawf John S. Prebula Asif Hasson Bruce Kenner H. 1. Thomas Anthony Coppola
--___ __ ENCLOSURE 2 Operability of the hot shutdown systems including the ability to overcome a fire or fire suppressant induced maloperation of hot shutdown equipment and the plant's power distribution system, must exist without repairs. Manual operation of valves, switches and circuit breakers is allowed to operate equipment and isolate systems and is not considered repairs. The removal of fuses for isolation is not permitted.
All manual operations mutt be achieveable prior to the fire or fire suppressant Induced maloperations reaching an Unrecoverable plant condition.
Modifications, e.g., wiring changes, are allowed to systems and/or components not used for hot shutdown, but whose fire or fire suppressant induced maloperation may indirectly affect hot shutdown, i.e., pulling fuses to close PORV that spuriously opened or to prevent spurious opening. These repairs must be achieveable prior to the maloperations causing an unrecoverable plant condition.
At the time the fire starts In the control room the capabilit must exist for hot shutdown outside the control room that is independent of control room circuits.
If it can be shown that each piece of equipment necessary for hot shutdown can be isolated from the control room without repairs regardless of control room damage, then'this is acceptable.
Procedures must exist to perform the isolation.
During the time it takes to perform such isolation an un-recoverable plant condition must not be reached, e.g., the plant must be capable of reaching stable hot shutdown condition prior to core damage.With regards to control room evacuation, the only operation that is allowed prior to leaving the control room is a reactor scram. All other actions required for hot shutdown must be accomplished from outside the control room.Procedures may call for other operations within the control room but also point out the alternative procedure from outside the control room.Credit Is given for coordinated cIrucit protection features (breaker coordination/
fuse coordination) with regards to associated circuits of concern. Associated circuits of concern are defined as those cables (safety related, non-safety related, Class IE and non-Class I{) that: 1. Have a physical separation less than that required by Section 111.G.2 of Appendix RI and;2. Have one of the following:
- a. a common power source with the shutdown equipment (redundant or alternative) and the power source is not electrically protected from the circuitiof concern by coordinated hreakers, fuses, or similar devices or b. a connection to circuits of equipment whose spurious operation would adversely affect the shutdown capability (e.g., RHR/RCS isolation valves, ADS valves, PORVi, steam generator atmospheric dump valves, instrumentation, steam bypass, etc.) or c. a common enclosure (e.g.,, raceway panel, junction) with the shutdown cables (redundant and al:ornativyle
- and,
.2.:(1) are not electrically protected by circuit breakers, fuses or similar devices, or (2) will allow propagation of the fire into the common enclosure.