ML17298B679
| ML17298B679 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 12/18/1984 |
| From: | Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| To: | Knighton G Office of Nuclear Reactor Regulation |
| References | |
| ANPP-31501-WFQ, NUDOCS 8412200198 | |
| Download: ML17298B679 (6) | |
Text
REGULATORY
'FORMATION DISTRIBUTION SY M (RIDS)
ACCEg'SIOL. NBR: 6012200196 DOC ~ DATE: 64/1'2/18 NOTARIZED:'ES FACIL:gTN 50-528 Palo Verde Nuclear. Stationi Unit ii Arizona Pub'li STN"50-529 Palo Verde Nuclear Station~
Unit 2~ Arizona Publi STN-50-530 Palo Verde Nuclear Stationi Unit 3~ Arizona Publi AUTH'AME AUTHOR AFFILIATION VANBRUNT<E.E, Arizona Public Service Co, RECIP ~ NAME RECIPIENT AFFILIATION KINGHTON~G+14, Licensing Branch 3
SUBJECT:
Confirms commitment to add Class IE overvoltage protection isolation relays to non Class IE Control Circuitry Valves CHE-POY 239B 4
CHE"PDY 240B in all units, DISTRIBUTION CODE:
B001D COPIES RECEIVED:LTR ENCL SIZE:
TITLE: Licensing Submittal':
PSAR/FSAR Amdts 8, Related Correspondence NOTES:Standardized plant ~
Standardized plant.
Standardized plant.
DOCKET 05000528 05000529 05000530 05000528 05000529 05000530 RECIPIENT ID CODE/NAME NRR/OL/ADL NRR LB3 LA INTERNAL: ACRS Pl ELO/HDS3 IE/OEPER/EPB 36 IE/OQAS IP/QAB21 NRR/OE/AEAB NRR/DE/EHEB NRR/OE/GB 28
, NRR/OE/MTEB 17 NRR/OE/SGEB 25 NRR/OHFS/LQB 32 NRR/OL/SSPB NRR/DS I/ASB NRR/DSI/CSB 09 NRR/OS I /METB 12 NRR AB 22 00
/l'lIB EXTERNAL: BNL(AMDTS ONLY)
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1 RECIPIENT ID CODE/NAME NRR LB3 BC LICITRAgE 01 ADM/LFMB IE FILE IE/DEPER/IRB 35 NRR ROEgM ~ L NRR/DE/CEB 11 NRR/DE/EQB 13 NRR/DE/MEB 18 NRR/DE/SAB 20 NRR/DHFS/HFEBQO NRR/DHFS/PSRB NRR/DSI/AEB 26 NRR/DSI/CPB 10 NRR/DSI/ICSB 16 NRR/DSI/PSB 19 NRR/DS I/RSB 23 RGN5 OMB/OSS (AMOTS)
LPDR 03 NSIC 05 PNL GRUELgR
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Arizona Public Service Company Director of Nuclear Reactor Regulation Mr. George W. Knighton, Chief Licensing Branch No. 3 Division of Licensing U.S. Nuclear Regulatory Commission Washington, D.C.
'0555 December 18, 1984 ANPP-31501 WFQ/TFQ
Subject:
Palo Verde Nuclear Generating Station (PVNGS)
Units 1, 2, and 3
Docket Nos.
STN 50-528/529/530 Auxiliary Pressurizer Spray Modification File:
84-056-026'.1.01.10
Reference:
Letter from E. E.
Van Brunt, Jr.,
APS, to G.
W. Knighton,
- NRC, dated December 7,
1984 (ANPP-31382);
Subject:
Auxiliary Pressurizer Spray Modification
Dear Mr. Knighton:
'I As confirmation of recent discussions with your staff regarding the referenced
- letter, APS commits to add Class IE overvoltage protection isolation relays to the non IE Control Circuitry for valves CHE-PDY-239B and CHE-PDY-240B.
This plant modification will be complete prior to restart following the first refueling 'outage of PVNGS Unit 1, prior to exceeding 5% power for PVNGS Unit 2,
and prior to fuel load for PVNGS Unit 3.
The delay to first refueling for PVNGS Unit 1 and 5X power for PVNGS Unit 2 is justified as there are several methods to deenergize valves CHE-PDY-239B and 240B thus assuring auxiliary pressurizer spray capability even with multiple failures of the non class IE system.
- Further, the air supply to the isolation valves can be terminated by using the class IE instrument air containment isolation valve IAA-UV-2.
Thus there is adequate assurance of safety to warrant the delay in implementation.
If you have any questions on this matter, please contact Mr. William Quinn of my staff.
Very truly yours, 84i2200i98 841218 P(
PDR ADOCK 05000528 FBR) e.~.v" E, E.
Van Brunt, Jr APS Vice President Nuclear Production ANPP Project Director EEVB/TFQ/mb cc:
E. A. Licitra A. C. Gehr R.
P.
Zimmerman
A 0
December 18, 1984 ANPP-31501 STATE OF ARIZONA
)
) ss.
COUNTY OF MARICOPA)
I, Edwin E.
Van Brunt, Jr.,
represent that I am Vice President, Nuclear Production of Arizona Public Service
- Company, that the foregoing document has been signed by me. on behalf of Arizona Public Service Company with full authority to do so, that I have read such document and know its
- contents, and that to the best of my knowledge and belief, the statements made therein are true.
r.
4U Edwin E.
Van Brunt, Jr.
Sworn ro before ne rbis~Fdey of 1984.
Notary Publ c j
My Commission'Expires:
My Commission cfires April 8,
$ 987
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