ML17300A564
| ML17300A564 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 10/03/1986 |
| From: | Haynes J ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| To: | Martin J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| ANPP-38553-JGH, NUDOCS 8610100446 | |
| Download: ML17300A564 (10) | |
Text
REQULAT INFORNATION DISTR IBUTIO BTEt'i (R IDB)
ACCESSION NBR: Bb1010044b DOC. DATE: Bb/10/03 NOTARIZED:
NO DOCKET 5 FACIL:STN-50-529 Palo Vev de Nuclear Station>
Unit 2>
Av i zona Publi 05000529 AUTH. NANE AUTHOR AFFILIATION HAYNES> J. Q.
Av i zona Nucleav Power Pv object
( formev lg Av i zona Public Serv REC IP. NAI'1E RECIPIENT AFFILIATION HARTIN>J. B.
Region 5> Office of Div ectov
SUBJECT:
Fov'wav'ds mav ked-up pages re change to FBAR Chaptev 14 5 CEBBAR FBAR Chaptev
- 14. Change provides for altev'nate tes+
method for unit load v egection test> allowing test of fas+
bus tv'ansfev simultaneously w/unit load regection.
DISTRIBUTION CODE:
A001D COPIES RECEIVED: LTR ENCL SIZE:
TITLE:
OR Submittal:
Qeneval Distribution NOTES: Standav'd.ized plant. N. Davis> NRR: 1Cg.
05000529 RECIPIENT ID CODE/NANE PNR-8 EB PNR-8 FOB PNR-8 PD7 PD 01 PNR-8 PEICSB COPIES LTTR ENCL 1
5 5
1 RECIP IENT ID CODE/NANE PNR-8 PEI CBB PNR-8 PD7 LA LICITRA>E PNR-8 RSB COPIES LTTR ENCL 2
2 0
1 1
INTERNAL: ACRS ELD/HDB3 NRR/GRAB RQN5 09 b
b 1
00'
- DN/LFNB T/TBCB REQ FIL 04 1
0 1
1 1
EXTERNAL: EQM BRUSKE> B
'RC PDR 02 NOTES 1
1 1
1 LPDR NSIC 03 05 TOTAL NUi1BER OF COPIES REQUIRED:
LTTR 30 ENCL 2b
H(
UH ~
I h
UI Uvf d
-.1 4
I I
UA 4
II H.r E
~ '
he (h
I 4
v l rw)
>)
4 1'.')4 I
hrh) h I
~) )U (HI 1 ~
1 e
'I
~
Hi h
Arizona Nuclear Power Project P.O. SOX 52034
~
PHOENIX, ARIZONA85072-2034 October 3, 1986 ANPP-38553-JGH/JKO/98.05 Mr. John B. Martin, Regional Administrator Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Region V
1450 Maria Lane, Suite 210 Walnut Creek, CA 94596-5368
Subject:
Palo Verde Nuclear Generating Station (PVNGS)
Unit 2 Docket No. STN-50-529 (License NPF-51)
Change to the Initial Test Program File:
86-C-056-026 86-C-005-419.05
Dear Mr. Martin:
In accordance with License NPF-51 Condition 2.C.(5),
ANPP is submitting a
change to Chapter 14 of the Final Safety Analysis Report (FSAR) and an exception to CESSAR FSAR Chapter 14.
Attached are the marked up FSAR pages of the change.
This change provides for an alternate test method for the Unit Load Rejection Test as described in CESSAR.
Using this alternate test method allows us to test the Fast Bus Transfer at the same time.
For Unit 1, the load rejection was initiated in such a way as to allow maximum credible overspeed condition.
The circuitry provided to arrest the turbine speed performed as designed.
Units 2
and 3
have identical circuitry and that circuitry has been functionally tested.
It will perform in the same manner as Unit 1.
- However, using the alternative test method for Units 2 and 3 allows us to gather more useful information concerning the Fast Bus Transfer.
After completion of a Safety Review and Evaluation, according to 10CFR50.59, ANPP has determined that this change does not introduce an unreviewed safety question.
The Unit Load Rejection test with the alternate test method still meets the test objective and the same acceptance criteria still applies.
No equipment important to safety will be affected.
The margin of safety as discussed in the Technical Specifications will not be reduced since this startmp test is not discussed as a basis.
OOO46 ssaoos 8 PDR ADOCK o P
11
Mr. John B. Martin Change to the Initial Test Program ANPP-38553 Page 2
If you have any further questions concerning this
- matter, please contact Mr. W. F. Quinn of my staff.
Very truly yours, J.
G. Haynes Vice President Nuclear Production JGH/JKO/dim Attachment cc:
- 0. M. DeMichele E. E.
Van Brunt, Jr.
E. A. Licitra A. C. Gehr R. P.
Zimmerman Director of Inspection and Enforcement
1' V
1.9.2.4.
,UNIT LOAD REJECTION TEST (CESSAR 14.2.12.5.7)
CESSAR Section 14.2.12.5.7, Test Method, states that "a breaker(s) is tripped so as to subject the turbine to the maximum credible overspeed condition."
For Units 2
and 3,
PVNGS takes exception to that part of the test method.
Instead of the method described in 3.1 of that test description, the method used will be to trip the breaker(s) in order to initiate the load rejection.
The alternate test method still meets the objective of the test and the acceptance criteria still applies.
This alternate method allows PVNGS to test the Fast Bus Transfer during the Unit Load Rejection Test.
Since all three units have the same circuitry to arrest turbine acceleration, and Units 2 and 3 have circuitry that has been functionally tested, performing the Unit Load Rejection test with the same method for all three units is not necessary.
PVNGS will gather more useful information by taking this exception to CESSAR for Units 2 and 3.
, ~ l C'
PVNGS FSAR SPECIFIC INFORMATION TO BE INCLUDED IN FSAR list of prerequisites which must be completed and verified prior to the start of a particular test.
The use of prerequi-sites in test procedures ensures that the safety of the plant is not dependent on the performance of untested systems.
Phase I test procedures are scheduled to be approved and available for review by the NRC inspectors at least 60 days prior to their scheduled performance date.
Phase II through IV Startup Test Program administrative control procedures, the majority of the individual test procedures and the following milestone controlling procedure documents:
Fuel Loading, Post Core HFT, Initial Criticality, Low Power Physics Test and Power Ascension, are scheduled to be approved and available for review at least 60 days prior to fuel load.
The remaining individual test procedures will be scheduled for approval and available for review by the NRC inspectors at least 60 days prior to their intended performance date.
13 14.2.12 INDIVIDUALTEST DESCRIPTIONS Individual test descriptions are listed in table 14.2-1 and are presented in appendix 14B.
~~I, l.2 I.
FSAR sections 1.9.2.4.9 and 1.9.2.4.14-1.9.2.4.17~describe deviations to testing described in CESSAR Section 14.2.12.
15 April 1986 14.2-31 Amendment 15
)>3
~
~
~
~
V