ML17303A439
| ML17303A439 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 06/29/1987 |
| From: | Haynes J ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| 161-00324-JGH-J, 161-324-JGH-J, TAC-67076, NUDOCS 8707060379 | |
| Download: ML17303A439 (6) | |
Text
DOCKET 0500052m o5ao053o REGULAi Y XNFQRNATXQM DISTRIBUTXO YSTEN (RIDB)
ACCE.'SSXOM NBR: 8707060379 DQC. DATE: 87/06/2'P NOTARIZED:
NQ FACIL:BTN-50-529 Palo Verde Nuclear Stations Unit 2i Arizona Publi STN-50-530 Palo Verde Nuclear Stations Unit 3i Arizona Publi AUTH. MAgE AUTHOR AFFlLIATZOM HAYNES'. G.
Arizona Nucleav Power ProJect (formerly Arizona Public Berv REC IP. MANE REC IP lENT AFFILZATION Document Contvol Branch (Document Control Desk>
SUBJECT:
Fov wav ds v evised FSAR Page 148-14. stating that test fov.
Class 1E instv ument 'powev will test automatic static tv ansfev switch as opposed to manual tv ansfev switch.
DXSTRIHUTIQN CODE:
A001D CQP IES RECEIVED: LTR
/ ENCL I SIZE:
TXTLE:
QR Submittal:
General Distribution NOTES: Standardized plant. N. Davisi NRR: iCg.
Standardized plant. N. Davisi NRR: 1Cg.
05000529 05000530 RECXPZENT ID CODE/MANE PD5 LA LZC ITRAs E CQP IES LTTR ENCL 0
1 REC ZP IENT ID CODE/MANE PD5 PD DAVIS' COPIES LTTR ENCL 5
5 INTERNAL:
ACRB NRR/DEST/ADE NRR/DOEA/TBB OGC/HDBi REB/DE/EIB EXTERNAL:
6 6
1 1
1 1
0 1
1 1
1 1
1 ARN/DAF/LFNB NRR/DEST/ADB NRR/PN*B/ILRB IL 01 LPDR NBZC 0
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TOTAL NUMBER OF COPZES REQUIRED:
LTTR 27 ENCL 24
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Arizona Nuclear Power Project P.o. BOX 52034
~
PHOENIX, ARIZONA85072-2034 U.S. Nuclear Regulatory Commission ATTN:
Document Control Desk Washington, D.C. 20555 June 29, 1987 161-00324-JGH/JKR
Subject:
Palo Verde Nuclear Generating Station (PVNGS)
Units 2 and 3
Docket Nos.
STN 50-529 (License NPF-51)
STN 50-530 (License NPF-65)
Change to the Initial Test Program File: 87-C-005-419.05.
87-D-005-419.05 87-A-056-026
Dear Sir:
In accordance with License NPF-51 Condition 2.C.5 and License NPF-65 Condition 2.C.4, ANPP is submitting a
change to chapter 14 of the Final Safety Analysis Report (FSAR).
Attached is the marked up FSAR page of the change.
This change was made to state that the test for the Class IE instrument power will test the automatic static transfer switch as opposed to the manual transfer switch for Units 2
and 3.
The automatic static transfer switches replaced the manual 'transfer switches in Units 2
and 3 in order to prevent the temporary loss of power to the vital instrumenta-tion and control system loads due to the time it takes to manually transfer to the alter-nate power source.
The automatic transfer switch is further discussed in FSAR Section 8.3.1.1.6.
After completion of a Safety Review and Evaluation, according to 10 CFR 50.59, ANPP has determined that this change does not introduce an unreviewed safety question.
No credit for the transfer switch is taken in the accident analysis.
The ability to safely operate the plant and transfer to an alternate power source is not adversely affected by this change.
The switch is being tested for proper operation.
The margin of safety will not be affected.
If you have any further questions concerning this matter, please contact Mr.
W. F.
Quinn of my staff.
Very truly yours, 8707060379 870629 PDR ADOCK 05000529 PDR J.
G.
Hay es V3.ce Presa.dent Nuclear Production JGH/JKR/rw Attachment CC:
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M.
E. E.
R.
P.
A. C.
J.
B.
De Michele Van Brunt, Jr.
Zimmerman Gehr Martin (Region V)
~%-',<s 1 (g "yy P~
PVNGS FSAR ZJhd APPENDIX 14B l4B.S CLASS IE INSTRUMENT AC POWER l.0 OBJECTIVE To demonstrate that the four 120V-ac vital buses and associated power supplies are capable of supporting their design loads and can be transferred to the alternate sources.
2.1 Construction activities completed on the system(s) to be tested.
2.2 Permanently installed instrumentation properly calibrated and operable.
2.3 Test instrumentation available and properly calibrated.
2.4 All 125V-dc power systems available to ac inverters for the vital buses.
2.5 Alternate vital bus source available.
3.0 TEST METHOD 3.1 Operability and setpoint(s) shall verified for each alarm and tripping device.
3.2(~)Test manual transfer switch operation. (~<<~ I o<<g)
(b)w<++ avSma4(c 6&4<c-4rAnsmr ~aiMt oper ohioan
~ (bing z, < gg) 3.3 Each bus will be load tested, using both its normal and alternate power supply, by imposing its design connected load.
Amendment, 2
14B-14 September 1980
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