ML20205Q221
| ML20205Q221 | |
| Person / Time | |
|---|---|
| Site: | Byron, Braidwood, 05000000 |
| Issue date: | 11/04/1988 |
| From: | Sands S Office of Nuclear Reactor Regulation |
| To: | Bliss H COMMONWEALTH EDISON CO. |
| References | |
| TAC-56199, TAC-63239, TAC-64018, TAC-64045, NUDOCS 8811090159 | |
| Download: ML20205Q221 (5) | |
Text
-
y a,
g.
- ' t
.n November 4, 1988 1
Docket Nos. 50-454, 50 455 and 50-456, 50-457 Mr. Henry E. Bliss.
Nuclear Licensing Manager Connonwealth Edison Company Post Office Box 767 Chicago, Illinois 60690
SUBJECT:
BYRON STATION UNITS 1 AND 2 AND BRAIDWOOD STATION UNITS 1 AND 2, NATURAL CIRCULATION C00LD0WN (TAC N05. 56199,63239,64018,64045) i
Dear Mr. 011ss:
'The NRC staff has reviewed the results of the natural circulation cooldown tests and boron mixing capability performed at Diablo Canyon and the comparison of these results with the Byron /Braidwood design. The NRC staff has completed I
its evaluation of Byron /Braidwood and h:s detennined that the technical requirements of RSB 5-1 have been satisfied as they apply to Class 2 plants, I
f Therefore, Byron /Braidwood have satisfied the consnitment set forth in the
)
Byron /Braidwood FSAR, Amendment 48, dated July 1987 to either demonstrate compatibility with the Diablo Canyon prototype test results, or perfonn a natural circulation coolJown test if the test results could not be shown to be representative. The NRC staff has detennined that the Byron /Braidwood analysis for this event is representative of the prototype test run at Diablo Canyon and is acceptable. The Safety Evaluation is enclosed.
Sincerely, 5
Stephen P. Sands, Project Manager Project Directorate 1112 Division of Reactor Projects - III, IV, V and Special Projects
Enclosure:
as stated cc: see next page DISTRIBUTION E ket fu e; NRC & Local FDRs PDIII.2 r/f GHolahan MVirgilio DMuller 0GC EJordan BGrimes ACRS (10 SSands Plant file (0\\
- See previous concurrence N
OFC :PDIII-2*
- PDIII-2*
- PDIII-2*
NAME :SSands:km
- lluther
- DMuller DATE :11/03/88
- 1 /03/88
- 11/03/88 0FFiclAL RECORD COPY DOCUMENT NAME:
SS 11/3 M2 BLIS$
es11090159 881104 PDR ADOCK 03000454 P
e Docket Nos.
50-45 50-455 and 50-4 6, 50-457 Mr. Henry E. Bliss Nuclear Licensing M ager Commonwealth Edison pany Post Office Box 767 Chicago, Illinois 606
SUBJECT:
BYo0N STATION U ITS 1 AND 2 AND BRAIDWOOD STATION UNITS 1 AND 2, NA URAL CIRCULAT N C00LDOWN (TAC NOS.
56199,63239,64018,64045)
Dear Mr. Bliss:
The NRC staff has reviewed the esults of the natural circulation cooldown tests and boron mixing capabili performed at Diablo Canyon and the comparison of these results with the Byron / aidwood design. The NRC staff has completed its evaluation of Byron /Braidwood nd has determined that the technical requirements of RSB 5-1 have been tisfied as they apply to Class 2 plants.
Therefore, Byron /Braidwood have sat pfied the conynitment set forth in the Byron /Braidwood FSAR, Amendment 48, deted July 1987 to either demonstrate compatibility with the Diablo Canyon htotype test results, or perform a natural circulation cooldown test if tD test n:sults could not be shown to be representative. The NRC staff has dete inea th6t the Byron /Braidwood analysis for this event is representative of the ototype test run at Diablo Canyon and is acceptable. Tha Safety Evaluation b
.i;cd. t44</4 (*. lW
- V4
)w Sin rely, Stephen Sands, Project Manager Project D ectorate III.2 Division o Reactor Projects - III, IV, V and pecial Projects
Enclosure:
as stated DISTRIBUTION Docket file NRC & Local PDRs PDIII.2 r/f GHolahan MVirgilio DMuller 0GC EJordan BGrirres ACRS (10 SSands Plant file SRXB WC :PA
- FDIII-2
- PDIII
- ,g
.:.....M.....:.....-2
..... : M
- LLuth
- DF
- Nh NAME :
s m 4
.....:............:............:............:......M....:............:............:...........
- 11/ 7 /88
- h/
DATE :11/ 05/88__ _ :11/e3 /E8 OFFICIAL RECORD COPY DOT,UMENT AME:
55 11/3 M2 BLI53
- g.
Mr. Henry E. Bliss Byron Station
.. g Consonwealth Edison Company Units 1 and 2 cc:
Mr. William Kortier Regional Administrator. Region III Atomic Power Distribution U. S. Nuclear Regulatory Westinghouse Electric Corporation Cosnission Post Office Box 355 799 Roosevelt Road. Bld. d4 Pittsburgh, Pennsylvania 15230 Glen Ellyn. Illicots 6 137 Michael Miller. Esq.
Mr. Michael C. Parker, Chief
$1dley and Austin Division of Engineering One First Nations 1 Plaza Illinois Department of Chicago, Illinois 60603 Nuclear Safety 1035 Outer Park Drive Mrs. Phillip B. Johnson 1907 Stratford Lune '
Joseph Gallo. Esq.
Rockford. Illinois 61107 Hopkins and Sutter i
Suite 1250 Ms. Lorraine Creek 1050 Connecticut Avenue. N.W.
Rt. 1. Box 182 Washington D. C.
20036 Manteno Illinois 60950 Douglass Cassel. Esq.
Dr. Bruce von Zellen 109 N. Dearborn Street Departrient of Biological Sciences Suite 1300 Northe n Illinois University Chicago, Illinois 60602 DeKalb. Illinois 61107 Ms. Pat Norrison Mr. Edward R. Crass 5568 Thunduridge Drive Nuclear Safeguards & Licensing Rockford. Illinois 61107 Sargent & Lundy Engineers 55 East honroe Street Attorney Gener. l a
Chicago. Illinois 60603 500 South 2nd Street Springfield Illinois 62701 U. S. Nuclear Regulatory Comission Syron/ Resident Inspectors Offices Chai m n. Ogle County Board 4448 North Gennan Church Road Post Office Box 357 Byron Illinois 61010 Dregon Illinois 61061 ES! Review Coordinator Environmental Protection Agency Region V 230 5. Dearborn Street Chicago, Illinois 60604 Cessenwealth Edison company Syron Station Manager 4450 North German Church Road Syron. Illinois 61010
[ pun
~
'o,,
UNITED STATES
~.
NUCLEAR REGULATORY COMMISSION
[
c t
a WASHINGTON D. C. 20555 November 4,1988 Docket Nos.
50-454, 50-455 and 50-456, 50-457 Mr. Henry E. Bliss Nuclear Licensing Manager Comonwealth Edison Company Post Office Box 767 Chicago, Illinois 60690
SUBJECT:
BYRON STATION UNITS 1 AND 2 AND BRAIDWOOD STATION UNITS 1 AND 2 NATURALCIRCULATIONC00LD0WN(TACN05. 56199,63239,64018,64045)
Dear Mr. Bliss:
The NRC staff has reviewed the results of the natural circulation cooldown tests and boron miking capability perfomed at Diablo Canyon and the comparison of these results with the Byron /Braidwood design. The NRC staff has completed its evaluation of Byron /Braidwood and has detemined that the technical requirements of RSB 5-1 have been satisfied as they apply to Class 2 plants.
Therefore, Byron /Braidwood have satisfied the commitment set forth in the Byron /Braidwood FSAR, Amendment 48, dated July 1987 to either demonstrate compatibility with the Diablo Canyon prototype test results, or perfom a natural circulation cooldown test if the test msults could not be shown to be representative. The NRC staff has detemined that the Byron /Braidwood analysis for this event is representative of the prototype test run at Diablo Canyon and is acceptable. The Safety Evaluation is enclosed.
Sincerely, g
Stephe P. Sands, Project Manager Project Directorate III-2 Division of Reactor Projects - III, IV, y and Special Projects
Enclosure:
as stated t.c :
see next page
\\
m
\\
e Mr. Henry E. Bliss Byron Station
-.i Commonwealth Edison Company Units I and 2 cc:
Mr. William Kortier Regional Administrator, Region III Atomic Power Distribution U. S. Nuclear Regulatory Westinghouse Electric Corporation Comission Post Office Box 355 799 Roosevelt Road, Bldg. d4 Pittsburgh, Pennsylvania 15230 Glen Ellyn Illinois 60137 Michael Miller Esq.
Mr. Michael C. Parker, Chief Sidley and Austin Division of Engineering One First National Plaza Illinois Department of Chicago, Illinois 60603 Nuclear Safety 1035 Outer Park Drive Mrs. Phillip B. Johnson 1907 Stratford Lane Joseph Gallo Esq.
Rockford, Illinois 61107 Hopkins and Sutter Suite 1250 Ms. Lorraine Creek 1050 Connecticut Avenue, N.W.
Rt. 1 Box 182 Washington, D. C.
20036 Mantenc, Illinois 50950 Douglass Cassel Esq.
Dr. Bruce von Zellen 109 N. Dearborn Street Departnent of Biological Sciences Suite 1300 Northern Illinois University Chicago, Illinois 60602 DeKalb, Illinois 61107 Ms. Pat Morrison Mr. Edward R. Crass 5568 Thunduridge Drive Nuclear Safeguards & Licensing Rockford, Illinois 61107 Sargent & Lundy Engineers 55 East honroe Street Attorney Gener. l a
Chicago, Illinois 60603 500 South 2nd Street Springfield, Illinois 62701 U. S. Nuclear Regulatory Comission Byron / Resident Inspectors Offices Chairman, Ogle County Board 4448 North German Church Road Post Offico Box 357 Byron, Illinois 61010 Oregon. Illinois 61061
(
ESI Review Coordinator Environmental Protection Agency i
Region Y 230 S. Dearborn Street Chicago, Illinois 60604 Comonwealth Edison Company hyron Station Manager 4450 horth German Church Road Syron Illinois 61010