ML20099C742
| ML20099C742 | |
| Person / Time | |
|---|---|
| Site: | Clinton  |
| Issue date: | 11/14/1984 |
| From: | Victor H ILLINOIS POWER CO. |
| To: | Parkinson G BECHTEL GROUP, INC. |
| References | |
| F-0994, F-994, NUDOCS 8411200047 | |
| Download: ML20099C742 (6) | |
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lAllikOl8 POWER COMPANYI
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( , C'i cumics Pcaen sTAricN. P.o. scx s7s. cusicN. WNcl$ 61N71 November _:14s.1984:
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Mr. Gordon L._ Parkinson.-
.Bechtel-Power Corporation. ~
. Fifty Beale Street. .
. San Francisco, CA 94119
Dear Mr. Parkinson:
' Enclosed is S&N s response to Observation Report Number-8, Rev. 1.
This' response has been reviewed-by; Illinois' Power.
. Sincerely yours' ,
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'N. R. Victor h S'f Manager, -
Nuclear Station. Engineering-DW/1m -
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'- -Date s !!ovenhor 5,1984 Project No'.- 4536-51,;-53:
m zIllinois-Power' Company rClinton PoweraStation.
Unit 1 .
FIndependent. Design Review. '
- observation"and Resolution Reports.
'Mr. J. D. Geier -
Assistant to Vice President Illinois Powar Company
.500 South 27th Street
- Decatur,'2111nois 62525 .-
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Dear Mr. Geier:
Enclosed is a copy of- the below listed Resolution Re4 orts with tho -
proposed resolution (Items 5 and 6). completed.by Sargent & Lundy: -
Resolution Report Number 8, Revision 1
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We for are also enclosing a copy of the corresponding Observation. Reports completeness.
Please review our proposed resolution and, if you concur, sign Item 7 of the Resolution Report and forward the report to the independent reviewer.
to Sargent tAlso, ' undy please for our return records. a copy of the signed Resolution Report Yours very truly,
'T O d.n' p.A R. C. Heider RCHand Project Manager Attachment - all recipients D. P. Hall E. L. Branch H. R. Victor B. A. Erler F. A. 'Spangenberg (originals) W. G. Schwartz L. E. Ackmann/W. A. Chittenden L. R. Stensland W. G. liegener H. S. Taylor E. V. Abraham R. A. Witt R. X.JFrench R. B. Johnson
- J. M. McLaughlin M. J. Shewski
.H. M. Sroka D. K. Schopfer 9
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- OBSERVATION REPCRT
+ - - File No. . OS File Revision No.- 0 !
Date 5eot. 25. m 4 1
.1. Level I classification of Observadon:-
Not significant to safety
" Recommendation for resolution" T Additional information required *See 5, Committee
_Significant to safety, send to Level 2 ,
- 2.~ Structure (s). systes(s), or compor.ent(s) involved:.
125 y de distribution' system, safety related control center undervoltage
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relay and ground detection circuits
- 3. Description of Observation: .
- Circuits to' the tuo non-safety related (flSR). components' (undervoltage relay -
and
'($R) ground detector recording voltmeter)'of the.125 y de safety rela
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device (fuse) ectuated by fault current. There is a discrepancy with FSAR .
Section 8.1.6.1.14 unich specifies that circuit breakers actuated by fault current are used as isolation davices only when two devices are.in series on the same circuit. , j
.b 4 Significance of Observation:
The 125 y de pc+rer systen is a Support systen for. the Class 1E ac power systms. Since the ceaeponents tre NSR, internal fault in the components
- during 03E could degrade the 53 tus. , ,
- 5. Rectmendation for resolution (optional):-
$41, should provids an explanation of why the discrepancy occurred, and an assessment of its safety significance. St.t. should justify the adequacy of '
the circuit design to meet the design ccanitment.
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CLINT0kPOWERSTATION f ~ Job 15478-003 +
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RESOLUT10N REPORT 3 cr + "
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File'No.- '
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File-Revision No.' 1 ~
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~ Date November 5.1984 Internal Review Committee 1; Resolution by Leve1~ li
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- 2. iClassification of Observation:: '
"a. Not valid,(see continuation sheet)
- b. Not significant to safety ss >
. c...
T Additional information required '
- d. Significanttosafety; s f
- :3. ' Program resolution is:-
- s. - Closed iten' '
.b. T Action to be taken by Reviewee r/G
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- 4. Review Comittee signatures: d' . .A1 -
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- 5. Reviewee proposed resolution:
- a. Description of proposed resolution:
(See Continuation Sheet)
- b. Basis of proposed resolution:
' (See Continuation Sheet)
- 6. Revieweeresponsereportsignedpy Date t.ngineer ; --
WY Manager .
_ Date '/
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- 7. Illinois Power Co. a view: .
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RdOWTIW REPORT'. .
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- Sa. Descrtiption of Proposed Resolution: '
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Sargent's Lundy has reviewed the application;and has determined-that a." discrepancy" does not exist. The separation of the non-Class lE components-from the Class lE-DC nower= source isa' achieved by -the application of one fuse each in the positive >
anu negative legs of tne ungrounded :DC' circult:as shown on. , -
. Saroent & Lundy Drawing I:03-lDC00, Sheet ' 6.
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Clinton Power Station -, 9 IndependentDesigqRhview-
- Standard Distribution List Director of Nuclear Reactor Regulation Richard'J. Goddard. Esq.
Actes? E E~ h 7Chsef*""'" m N J Office of the Legal Director (Licinking Brf.nch' No'." 2 ""*N"""h U. S. Nuclear Regulatory Commission
- Division of Licensing ,
Washington, D.C. 20555
. U. S. Nuclear Regulatory Commission Washington, D.C. 20555 Don Etchison Director,' Illinois Dep'artment of James G._Keppler Nuclear Safety-
-Regional Administrator 1035 Cuter Park Drive Region III .
Springfield, Illinois 62704 U. S. Nuclear Regulatory Commission . ,
Allen Samelson ,Esq.
799 Roosevelt' Road Glen Ellyn Illinois 60137 Assistant Attorney General
' Environmental Control Division
' Byron S'.esel Southern Region -
Clinton Licensing' Project Manager. '500 South Second Street Mail' Code 416 .
Springfield, Illinois 62706 U. S. Nuclear Regulatory Commission Washington, D.C. 20555 Jean Foy .
Spokesperson, Prairie Alliance Fred Christianson 511 W.' Nevada
- Mail Code V-690 Urbana. Illinois 61801 NRC Resident Office Clinton Power Station Richard Hubbard R.R. #3, Box 228 MHB Technical Associates Clinton, Illinois 61727
- 1723 Hamilton Avenue <
Suite K James L. Milhoan ,
San Jose, California 95125 Section Chief. Licensing Section Quality Assurance Branch Gordon L. Parkinson Office of Inspection and Enforcement Bechtel Power Corporation Mail Stop EWS - 305A Fifty Beal Street U. S. Nuclear Regulatory Commission P. O. Box 3965
- Washington, D.C. 20555 San Francisco, California 94119 Richard C. Knop Roger Heider Section Chief Sargent & Lundy Engineers Projects Section 1-C 55 East Monroe Street U. S. Nuclear Regulatory Commission Chicago, Illinois 60603 799 Roosevelt Road Glen Ellyn, Illinois 60137 I
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