ML17299B093
| ML17299B093 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 03/12/1986 |
| From: | Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| To: | Knighton G Office of Nuclear Reactor Regulation |
| References | |
| ANPP-35506-EEVB, NUDOCS 8603180103 | |
| Download: ML17299B093 (6) | |
Text
DOCKET 05000528 0500052'7 05000530
SUBJECT:
Discusses discrepancy di scovered in FSAR 5 SER testing requirements For turbine bypass.
sos. SER should be revised to reFlect 18-month testing frequency> as stated in FSAR Section
- 10. 4. 4. 3. B. JustiFication
{'-or rev to SER provided.
DISTRIBUTION CODE:
AOOID COPIES RECEIVED: LTR 1
ENCL SIZE:
TITLE:
QR Submi tta1:
General Distr i but i on REGULATOR FORMATION DISTRIBUTION S EM <RIDS)
ACCESS IOM;NBR: 8603180103 DOC. DATE: 86/03/12 NOTARIZED:
NO FACIL:STN-50-528 Palo Verde Nuclear Stationi Unit ii Arizona Publi STN-,50-529 Palo Verde Nuclear Stationi Unit 2E Arizona Publi STN-50-530 Palo Verde Nuclear Stationi Unit 3I Arizona Publi AUTH. NAME AUTHOR AFFILIATION VAN BRUNTI E. E.
Arizona Nuclear Power ProJect (formerly Arizona Public Serv RECIP. NAME RECIPIENT AFFILIATION KNIGHTQN> G. W.
PWR ProJect Directorate 7
NOTES: Standardi zed p lant.
Standardi zed plant.
Standardi zed p lant.
05000528 05000529 05000530 RECIPIENT ID CODE/NAME PWR-B ADTS PWR-B EB PWR-B FOB P WR-B PEI CSB COPIES LTTR ENCL RECIPIENT ID CODE/NAME PWR-B PD7 PD 01 PWR-B PEICSB LICITRAzE PWR-B RSB COPIES LTTR ENCL 2
1 INTERNAL: ACRS ELD/HDS3 NRR/ORAS RGN5 EXTERNAL: 24X LPDR NSIC 0V 03 05 6
1 1
ADM/LFMB
/TSCB REG ILE 04 EGCcG BRUSKEI 8 NRC PDR 02 TOTAL NUMBER OF COPIES REQUIRED:
LTTR 30 ENCL 2%
h 4
4 I
4 4th I
4 I
g l
A 4
k 4
V
Arizona Nuclear Power Project P.o. BOX 52034
~
PHOENIX. ARIZONA85072-2034 N
I March 12, 1986 ANPP-35506/EEVB/LJM/98.05 Director of Nuclear Reactor Regulation Attention:
Mr. George W. Knighton, Project Director PWR Project Directorate ¹7 Division of Pressurized Water Reactor Licensing B
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 (License NPF-41)
STN 50-529 (License NPF-46)
STN 50-530 Turbine Bypass System Testing File: 86-056-026
Dear Mr. Knighton:
When reviewing the PVNGS FSAR and the 11/81 PVNGS SER for the testing requirements of the turbine bypass system, it was discovered that a discrepancy existed between them.
ANPP believes the SER reflects an incorrect testing frequency which requires revision.
The original PVNGS FSAR had not delineated a testing frequency for the turbine bypass system.
NRC question 430.55 requested that a testing frequency be included in the FSAR.
ANPP responded by amending FSAR Section
- 10. 4.4. 3. B to reflect turbine bypass system testing on a frequency of 18 months.
The subsequent NRC review, published in the 11/81
- SER, stated that the turbine. bypass system would be tested on a
3 month frequency.
The turbine bypass system is being tested on an 18 month frequency.
It is requested that the SER be revised to reflect PVNGS'ommitment of the 18 month frequency.
The following information provides the basis for testing the turbine bypass system on an 18 month frequency rather than a
3 month frequency:
1.
The turbine bypass system is not a safety related system and does not impact the safe shutdown of the plant.
2.
The turbine bypass valves are not required to be tested in accordance with Section XI of the ASME Boiler and Pressure Vessel Code pursuant to Technical Specification 4.0.5.
3.
ANPP does not want to initiate unnecessary transients while the plant is base loaded.
4 ~
ANPP has not committed to testing the turbine bypass system on a
3 month frequency.
Bb03180X03 8b03IH PDR ADGCK 05000528, PDR
Nr.'eorge W. Knighton Turbine Bypass System Testing ANPP-35506 Page 2
If you have any questions, please contact Nr.
W.
F. (}uinn of my staff.
II[
Very truly'ur no~
E.
Van Brunt, Jr.
Executive Vice President Project Director EEVB/LJM/nv cc:
R.
P.
Zimmerman E ~
A. Licitra A.
C. Gehr
fl lg