ML17298B699
| ML17298B699 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 12/21/1984 |
| From: | Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| To: | Knighton G Office of Nuclear Reactor Regulation |
| References | |
| ANPP-31549-EEVB, NUDOCS 8412260262 | |
| Download: ML17298B699 (8) | |
Text
REGULATORY FORMATION DISTRIBUTION SY M (RIDS)
I ACCESSION NBR; 8412260262'OC, DATE! 84/1?/?
j, NOTARIZED:
YES DOCKET FACIL:STN-50-528 Palo Verde Nuclear Stationi Unit ii Arizona Publi 05000528 STN 50~529 Palo Verde Nuclear Stationi Unit 2i Arizona Publi 05000529 STN-50-530 Palo Verde Nuclear Stationi Unit 3i Ar izona Publi
,05000530 AUTH'AME AUTHOR AFFILIATION VAN BRUNTiE,E.
Arizona Public Service Co ~
RECIP ~ NAME RECIPIENT AFFILIATION KNIGHTON G
IP ~
Licensing Branch 3
SUBJECT:
Forwards analysis of change to design of main pressurizer spray line that deleted internal from Check Valve RC V 244i per request.Mod does not impact auxiliary pressurize'r spray capability,H/o encl.
DISTRIBUTION CODE:
B001D COPIES RECEIVED:LTR ENCL SIZE:
TITLE: Licensing Submittal:
PSAR/FSAR Amdts 8, Related Correspondence'.
NOTES:Standardized plant.
Standardized
- plant, Standardized plant.
05000528 05000529 05000530 REC IP IENT ID CODE/NAME, NRR/DL/ADL NRR LB3 LA INTERNAL: ACRS 41 ELD/HDS3 IE/DEPER/EPB 36 NRR ROEgM ~ L NRR/DE/CEB 11 NRR/DE/EQB 13 NRR/DE/MEB 18 NRR/DE/SAB 24 NRR/DHFS/HFEB40 NRR/DHFS/PSRB NRR/DSI/AEB 26 NRR/DSI/CPB 10 NRR/DSI/ICSB 16 NRR/DSI/PSB 19 NRR/DSI/RSB 23 RGN5 EXTERNAL: BNL(AMDTS ONLY)
FEMA"REP DIV 39 NRC PDR 02'TIS COPIES LTTR ENCL 6
1 1
1 1
2 1
1 1
1 1
1 1
1 1
3 1
1 1
1 RECIPIENT ID CODE/NAME NRR LB3 BC LICITRAiE 01 ADM/LFMB IE FILE IE/DQASIP/QAB21 NRR/DE/AEAB NRR/DE/EHEB NRR/DE/GB 28 NRR/DE/MTEB 17 NRR/DE/SGEB
?5 NRR/DHFS/LQB 32.
NRR/DL/SSPB NRR/DS I/ASB NRR/DSI/CSB 09 NRR/DS I/METB 12 I/RAB
?2 EG 04 RM i
/MIB DMB/DSS (AMDTS)
LPDR 03 NSIC 05 PNL GRUELiR COPIES LTTR ENCL 1
1 1
1 1
1 1
1 0
TOTAL NUMBER OF COPIES REQUIRED:
LTTR 53 ENCL
F'l o
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ft t
I
Arizona Public Service Company ANPP-31549-EEVB/WFQ December 21, 1984 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.
20555
Subject:
Palo Verde Nuclear Generating Station (PVNGS)
Units 1, 2, and 3
Docket Nos.
STN 50-528/529/530 Auxiliary Pressurizer Spray System (APSS)
File:
84-056-026'.1.01.10
References:
(A)
(B)
(C)
Letter to G.
W. Knighton, NRC, from E. E.
Van Brunt, Jr.,
APS, dated December 14, 1984 (ANPP-31481);
Subject:
RCS Main Pressurizer Spray Modification.
Letter to G.
W. Knighton, NRC, from E. E.
Van Brunt, Jr.,
APS, dated August 7, 1984 (ANPP-30141);
Subject:
PVNGS Test Program.
Letter to G.
W. Knighton, NRC, from E.
E.
Van Brunt, Jr.,
APS, dated September 27, 1984 (ANPP-30678);
Subject:
Natural Circulation Test Procedure.
Dear Mr. Knighton:
Reference (A) identified a change to the design of the main pressurizer spray line that deleted the internals from check valve RC-V-244.
As indicated in Reference (A), analysis indicates that this modification does not impact auxiliary pressurizer spray capability.
Accordingly, PVNGS meet the requirements of 10 CFR 50 and 10 CFR 100 as well as BTP RSB 5-1 (which includes 10 CFR 50, Appendix-A, GDC 19 and 34).
As requested by your staff, the analysis is enclosed for your information.
Reference (A) also stated that a test of depressurization capability would be performed during post core hot functional testing.
Based upon discussions with your staff, it is essential that this demonstration testing be performed under a variety of conditions that would model the expected performance range.
As the most important feature of this testing is natural circulation conditions, it would be more appropriate to perform this testing after there is sufficient decay heat to induce natural circulation.
Therefore, the natural circulation testing described in References (B) and (C) will be modified to specify that the main spray valves will be positioned fully opened to demonstrate adequate depressurization capability of the APSS.
This testing currently includes the broad range of parameter variations (pressure, temperature, voiding, letdown) that your staff feels should be included in the confirmatory testing to verify the enclosed analysis.
APS will submit the revised procedure which incorporates the open main spray valve to you by January 31, 1985.
84i2260262 84i22i PDR ADOCK 05000528 A
'I ~
~ Mr. G.
W. Knighton Auxi3,iary Pressurizer Spray System (APSS)
'NPP-31549 Page 2
As noted in Reference (A), your staff is welcomed to witness this testing.
Test results will be submitted to you upon completion of the testing.
If you have any questions, please contact Mr. William Quinn of my staff.
Very truly yours, 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
STATE OF ARIZONA
)
) ss.
COUNTY OF 'HARICOPA)
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.
Edwin E.
Van Brunt, Jr.
SUUora to before me this~Aday o
s 1984.
Notary Public Hy Commission Expires:
My CommIssion Expires Aprjl 6, gory
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