ML20063G878
| ML20063G878 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 07/15/1982 |
| From: | Cavanaugh W ARKANSAS POWER & LIGHT CO. |
| To: | Stolz J Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML20063G882 | List: |
| References | |
| 1CAN078205, 1CAN78205, NUDOCS 8207290235 | |
| Download: ML20063G878 (9) | |
Text
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ARKANSAS POWER & LIGHT COMPANY POST OFFICE BOX 551 UTTLE ROCK, ARKANSAS 72203 (501) 371-4000 July 15, 1982 1CAN078205 Director of Nuclear Reactor Regulation ATTN:
Mr. J. F. Stolz, Chief Operating Reactors Branch #4 Division of Licensing U. S. Nuclear Regulatory Commission Washington, D. C.
20555
SUBJECT:
Arkansas Nuclear One - Unit 1 Docket No. 50-313 License No. DPR-51 Technical Specification Change Requests to Extend Cycle 5 Gentlemen:
Attached are six Technical Specification figure change requests for your review and approval.
These changes will allow the extension Lf Cycle 5 from 435 i 10 Effective Full Power Days (EFPD) to 455 i 10 EFPD and to operate from 400 1 10 EFPD to the end of cycle (E0C) with the Axial Power Shaping Rods (APSR) fully inserted.
These requests also necessitate changes in the Cycle 5 Reload Report which are included herein for your review as " Arkansas Nuclear One, Unit 1 - Cycle 5 Reload Report,"
Revision 2.
The original AN0-1 Cycle 5 Reload Report and attendant Technical Specification changes were submitted by AP&L's letter dated January 30, 1981, and revisions thereto were submitted on February 26, 1981.
The cycle extension is necessary due to the proximity of the ANO-1 and ANO-2 scheduled refueling outages.
The extension will allow ANO-1 to continue operation for an additional 20 EFPD and thus further separate the refueling outages.
Our review and the analyses presented in Revision 2 of the Reload Report indicate that no safety concerns are associated with this change.
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L Operation to the E0C with the APSRs fully inserted is a precautionary measure designed to avoid delays during preparation for refueling.
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Excessive friction due to minor warpage of the APSRs near the end of W/cLEicIs,
their core-resident life could cause difficulties in accomplishing full
[ V 000.00 8207290235 820715 PDR ADOCK 05000313 P
PDR MEMBER MIDDLE SOUTH UTILITIES SYSTEM
J. F. Stolz~~',-
2 July 15,1982 insertion i'n. preparation for fueling.
Although there are no data to suggest that~significant APSR/ Guide Tube friction-is present in ANO Unit 1, operation with the APSRs fully inserted is the appropriate-anticipatory action.
All APSRs are to be replaced at the end of Cycle 5.
Since the APSRs are not safety-or regulating rod groups-related nor do they insert automatically upon a reactor trip, the proposed mode of operation will have no safety related consequences.
In addition, the APSR position limits have.been reanalyzed for the cycle extension period, and the permissible operating region is presented in the enclosed,
'f' revised Technical Specification ~ Figure 3.5.2-40.
Pursuant to the requirements of 10CFR170.22 we have determined these requests to be a Class III amendment.
Accordingly, a check in the amount of $4,000.00 is remitted.
Ve y truly your,.
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William naugh III WC:JC:mb s
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SS COUNTY OF PULASKI
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,1 T-I, William Cavanaugh III, being duly sworn, subscribe to and say that I am Senior Vice President, Ener'gj Supply for Arkans'as Power & Light g
sU Company; that I have full authority to eAecute this oath; that I have read the document numbered ICAN078 SS dnd know the contents thereof; and that to the best of my knowledge, information and belief the statements
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in it are true.
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W Wilfiam ugh III
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g SUBSCRIBED AND SWORN T0 before re', a Notarv Public in'and for the i.
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County and State above named, this (( day of O////
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1982.
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Figure 8 6.
BORIC ACID.t0DITION TANK VOLUME AND CONCENTRATION REQUIREMENTS VS RCS AVERAGE TEMPERATURE (TECH SPEC FIGURE 3.2-1) 8700 PPM OPERATION AB0VE AND 5000 TO THE LEFT OF THE CURVES IS ACCEPTABLE 9500 PPM
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300 400 500 600 s
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RCS Average Temperature, F
Figure 8-10.
.909 POSITION LIM!!S FOR FOUR-?UM? OPERATICN FROM 400 i 10 TC 455 t !0 EFF0 - ANG-1 CYCL 2 5 (TECH SPEC FIGURE 3.5.2-10) 110 100 90 (283,92)
SHUTDOWN MARG RESTRICTED 80 LIMIT REGION (255,80) 70 g
OPERATION IN THIS REGION IS NOT ALLONED 60 g
n 50 (162,50)
(181,50) 44 f
40 E
30 PERMISSIBLE 20 OPERAT1NG GION 10 (92,15)
(0,8.5) 0 i
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0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 Roo index, % WO O
2,0 4,0 60 8,0 100 0
20 40 60 80 100 I
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20 40 60 80 100 GROUP 6 I
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GROUP 5
Figure 8-14.
R00 ?3S: TION LIW!?S FO' THRdE-PUM G? ERAT!GN FRCM 400110 TO 455 i 10 EFPC-AWO-1, C'iCLE 5 (TECH SPEC ~ FIGURE 3.5.2-20) 110 100 90 RESTRICTED REGION 80 (230,77)
(247.6.77)
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70 OPERATION IN SHUTDOWN
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THIS REGION IS MARGIN 60 NOT ALLOWE0 2
LIMIT e
J PERNISSIBLE j
OPERATING 40 (162,38)
REGION 30 20 (0.6.9)
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f f
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0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 Rod index, % WO p
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20 40 60 80 100 GROUP 7 e
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20 40 60 80 100 GROUP 6 I
f I
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I GROUP 5
figure 8-18.
ROU POSIT 10N LINifS FOR IMO-PutP GPERAIl0N FRON 4001 10 TO 4551 10 EFFD-ANO-1, CYC:.2 5 (TECH SPEC FIGURE 3.5.2-2H) 110 100 90 80 E
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J 50 (230,52)
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40 OPERATION IN SHUT 00NN
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THIS REGION MARGIN LIMIT IS NOT ALLOWE0 30 1
(162,26)
PERNISSIBLE 20 OPERATING REGION 10 - (0,5.3)
(92.8.5) 0 e
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0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 Rod Index, % ND 0
20 40 60 80 100 i
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30 4,0 60 8,0 1,00 GROUP 5
Figure B-22.
OPERATIONAL POWER IMBALANCE ENVELOPE FOR OPERATION FROM 400 i 10 TO 455 i 10 EFPD-ANO-1, CYCLE 5 (TECH SPEC FIGURE 3.5.2 30)
-- 110
(-19,102)
'7 (20,102)
- 100
( -21, 92) 90
(-26,80) 80 RESTRICTED REGION PERMISSIBLE OPERATING REGION RESTRICTED 60 REGION 50 T.
=
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20 d'
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l f
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-20
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10 20 30 40 Axial Power l~mualance, ",
O Figure 8-26.
APSR POSITION LIMITS FOR OPERATION FROM 400 t 10 TO 455110 EFPD - ANO-1, CYCLE 5 (TECH SPEC FIGURE 3.5.2-40) 110 100 (20,102) 90 80 ll RESTRICTED 70 "E
REGION E0 60 e
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PERMISSIBLE 40 OPERATING REGION I
30 l
20 10 0
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10 20 30 40 50 60 70 80 90 100 APSR Position, % Withdrawn 6
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