ML060690180
| ML060690180 | |
| Person / Time | |
|---|---|
| Site: | Wolf Creek, Callaway  |
| Issue date: | 08/31/1984 |
| From: | Joseph Holonich, O'Connor P Office of Nuclear Reactor Regulation |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| FOIA/PA-2006-0095 NUDOCS 8409140046 | |
| Download: ML060690180 (13) | |
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6*7657U'1 UNITED STATES NUCLEAR REGULATORY COMMISSION WA IHJNOTON, O. C. 20551
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Docket Nfos.:
STN 50-482 and
'TN 50-483 FACILITIES:
IIi APPLICANT:
LICENSEE:
Wolf Creek Generating Station Callaway Plant Unit 1 Kansas Gas and Electric Company Union Electric Company
?kINUTES OF AUGUST 22, 1984 MEETING WITH ELECTRIC AND UNION ELECTRIC COMPANY i
SUBJECT:
KANSAS GAS AND On August 22, 1984 members of the NRC staff met with representatives of Union Electric Company, Kansas Gas Electric Company, SNUPPS, and Bechtel Corporation to discuss the applicant's proposed modification to their safe shutdown analysis related to a control room fire. Enclosure 1 is a list of attendees.
The modified response scenario for the control room. This response differs from previously scenarios by not relying on the removal of power to the installation of 7 additional isolation switches 7 other existing isolation switches.
fire is summarized in proposed response all AC buses and involves and the modification of The detailed steps In the new SNUPPS scenario keyed to the action phases of Enclosurej2 are identified in Enclosure 3, To assist in discussing the submittal and to clarify the rationale used, SNUPPS submitted Enclosure 4 wh ch identifies SNUPPS understanding of the HRC staff requirements related to this safe shutdown review. Enclosure 4 was modified during the meeting by the applicants to reflect additional clarification provided by the staff.
At the conclusion.of the meeting the applicants agreed to docket a final proposal to the stiff by Aujust 24, 1984 to resolvo the problems identified with the safe shutdown analysis by the stff. The submittal will identify a schedule for Installation or modification of hardware changes and If possible an estimate of the length of time risquired for making the installation.
On August 23, 1984 Messrs. N. Fioravante, J. Wilson, and W. LWFave of the Auxiliary Systems Branch provided the applicants with the following additional clarification of the staff positions discussed during the August 22 ieeting.
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S Credit can be taken only for a anual scram before leaving the I-
.I control room The staff considers the following SNUPPS systems to be "direct" MSlVs MSIV bypass Primary PORVs Reactor vessel head vent Excess letdown
° Associated Circuit - Spurious signal failures must meet the following conditions:
- 1. No automatic function from the circuits in the fire area -- in conjunction with one worst case spurious signal;
- 2. Any one spurious signal and;
- 3. Spurious operation of all motor-operated valves in-series for high-low pressure interfaces.
Joseph J. Holonich, Project Manager Licensing Branch No. 1 Division of Licensing Paul W. O'Connor, Project Manager Licensing Branch No. 1 Division of Licensing
Enclosure:
As stated cc: See next page CONCURRENCES:
DL:LBI1 p
C PO'Connor:es 8/p/84 Do c
JWr~nIch 8 l/84 I ood
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? ° Credit can be taken only for
'manual scram before leaving the control room The staff considers the follosving SNUPPS systems to be "direct" MSIVs MSIV bypass Primary PORVs Reactor vessel head vent Excess letdown Associated Circuit - Spurious signal failures must meet the following conditions:
- 1. No automatic function from tho circuits In the fire area -- in conjunction with one worst case spurious signal;
- 2. Any one spurious signal and;
- 3. Spurious operation of all motcr-operated valves In-series for high-low pressure interfaces.
Joseph J. Holonich, Project Manager, Paul W. O'Connor, Project Manager Licensing Branch No. 1 Licensing Branch No. 1 Division of Licensing Division of Licensing
Enclosure:
As stated cc: See next page
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SNUPPS
- Mr. D. F. Schnell Mr. Glen L. Koi Vice President - Nuclear Vice President Union Electric Company Kansas Gas and P. 0. Box 149 201 North Marki St. Louis, Missouri 63166 P. 0. Box 208 Wichita, Kansa!
ester
- Nuclear Electric Company et Street s 67201 cc: Gerald Charnoff, Esq.
Thomas A. Baxter, Esq.
Shaw, Pittman, Potts & Trowbridge 1800 M Street, N. W.
Washington, 0. C. 20036 ransas City Power & Light Company ATTlI:
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 Cretek NPS cio U. S. 11RC P. 0. Box 311 Burlington, Kansas 66839 Mr. Michael C. Keener State Corporation Conmmiss1in State of Kansas Fourth Floor, State Office Building Topeka, Kansas 6612 Mr. John tHeisler U. S. Nuclear Regulatory Commission Resident Inspectors Office RR $1 Steedman, Missouri 65077 Terri Sculley, Director Special ProJects Division Kansas Corporation Comni sslon State Office Building, 4th Floor Topeka, Kansas 66612 Mayor Howard Steffen Chamois, Missouri 65024 Jay Silberg, Esquire Shaw, Pittman, Potts A Trowbridge 1800 M Street, N. W.
Washington, D. C. 20036 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. Eisen, Esq.
Birch, Horton, BittnL & Moore 1140 Connecticut Avenue, N. W.
Washington, D. C. 20036 Ms. Wanda Christy 515 N. 1st Street Burlington, Kansas 66839 Ms. Majorie Reilly Energy Chairman of the League of Women Voters of University City, MO 7065 Pershing Avenue University City, Missouri 63130 Mr. Fred Lukey Presiding Judge, Montgomery County Rural Route Rhineland, Missouri 65069 Professor William H. Miller Missouri Kansas Section, American Nuclear Society Departnent of Nuclear Engineering 1026 Engineering Building University of Missouri Columbia, Missouri 65211
SNUPPS I
4.1 2 cc: Robert G. Wright Associate Judge, Eastern District County Court Callaway County, Missouri.-
Route Vi Fulton, Missouri Lewis C. Green, Esq.
Green, Hennings & Henry.
Attorney for Joint Intervenor.,
314 N. Broadway, Suite 1830 St. Louis, Missouri 63102 Mr. Earl Brown School District Superintendenti P. 0. Box 9 Kingdom City, Missouri 65262 Mr. Samuel J. Birk R. R. #1, Box 243 Morrison, Missouri 65061 Mr. Harold Lottman Presiding Judge, Dasconade County Route 1 Owensville, Missouri 65066 A. Scott Cauger, Esq.
Assis:ant General Counsel for the Missouri Public Service Cornmi.
P. 0. Box 360 1
Jefferson City, Missouri 651(11 Mr. John G. Reed Route $1 Kingdom City, Missouri 65262 Mr. Dan I. Bolef, President Kay Drey, Representative Board of Directors Coalition for the Environment St. Louis Region 6267 Delmar Boulevard University City, Missouri 63130 Mr. Donald Bollinger, Member i
Missoruians for Safe Energy i
6267 Delmar Boulevard I
University City, Missouri 63130 John H. Simpson, Esq.
Attorney for Intervenors 4350 Johnson Drive, Suite 120 Shawnee Mission, Kansas 66205 Mr. James G. Keppler U. S. Nuclear Regulatory Corm ission - Region III 799 Roosevelt Road Glen Ellyn, Illinois 60137 Mr. John T. Collins U. S. Nuclear Regulatory Commission - Region 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 Commission Fourth Floor Stato Office Building Topeka, Kansas 66612 Brian P. Cassidy, Regional Counsel Federal Emergency Management Agency Region I J. W. McCormack POCH Boston, Massachusetts 02109
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-ENCLOSURE I AUGUST 22, 1984 SNUPPS SAFE SHUTDOWN OUTSIDE CONTROL ROOM MEETING NRC P. W. O'Connor Jerry Wilson Bill LeFave B. J. Youngblood R. L. Ferguson R. Eberly SNUPPS Jim Cermak Frank Schwoere KG&E Gene Rathbun Bechtel John S. Prebula Patrick Ward Chan Patel Asif Hassan Andy Woolard Westinghouse Pat Docherty UE Al Passwater 1___
X
-CONTROL ROOM FI:RE:,: RESPONSE
SUMMARY
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Phase Time Period Major Ac
-- :Postulati Trip Reac Evacuate ctions ed Fire
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0-5 min.
' Trip RCPs
' Close PORVs
' Trip Offsite Power to 41608 Bus and Start DG
' Establish ESW
- Trip-off Major Pumps
' Assume Control from ASP 8
0.10 min.
".Establish Safety - Related Room Cooling
' Isolate RWST C
D 0.20 min.
0.30 min.
' Establish CCW
' Establish Charging
' Close MSIVs E
0-60 min.
' Long Torm Hot Standby F
0-7 Ihr5,
- Very Long Term
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',_UNDERSTANDING OF NRC STAFF REQUIREMENTS I
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be anywhere in control room; no size or mechanism postulated.
ed adverse failures:
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- Must withstand any one spurious signal.
Nieed not postulate two 'smart" hot shorts on one circuit..
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- Adverse failure can occur at any time after reactor trip and evacuation of control room.
' Can take credit only for reactor trip before leaving control room.
- Manual repositioning of valves and other components is permitted, provided actions can be accomplished In time to prevent an unrecoverable plant condition.
' The following SHUPPS systems are considered "Indirect":
MSIVs M Y.SIV bypass
. Primary PORVs
- Reactor vessel head vent
- Excess letdown
- SG blowdown
- DG fuel transfer pump
- Callaway ESW cooling tower