ML17299A777
| ML17299A777 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 11/27/1985 |
| From: | Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| To: | Knighton G Office of Nuclear Reactor Regulation |
| References | |
| TASK-2.F.1, TASK-TM ANPP-34123-EEVB, NUDOCS 8512020462 | |
| Download: ML17299A777 (6) | |
Text
II RKGUL'ATORY NFORMATION DISTRIBUTION" SY TEM (RIDS)
ACCESSION NBR:8512020062 DOC ~ DATE: 85/11/27 NOTARIZED:
NO DOCKE'T FACILsSTN 50-529. Palo~ Verde Nuclear Stat) one Unit 2~
Ar ) iona>> Publ i 05000529 AUTHNAME.
AUTHOR AFF'II..IATION VAN BRUNTPE ~ E ~'r ) zona Nucil ear Power Project (formerl y Ar i zona Publ,ic Serv, RECIP'AME RECIPIE4T AFFIL'IATION KNIGHTONE G ~ H ~P'AIR Project Directorate 7
SUBJECT:
For wards just i f f cation for
) nter
) m opera contalinment water., level. instrumentation" Surve'illahce test>> will not be performed due to.. design change.,
DISTRISUTION CDDE:
SDOID COPIES RECEIVED:l.tTR TITLE: Licens i'ng Submittal.:
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c Arizona Nuclear Power Project P.o. BOX 52034
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PHOENIX. ARIZONA85072-2034 November 27, 1985 ANPP 34123 EEVB/JKO Director of Nuclear Reactor Regulation Attention:
Mr. George W. Knighton, Project, Director PWR Project Directorate
- II7, Division of Pressurized Mater Reactor Licensing B UPS. Nuclear Regulatory Commission Washington, D.C.
20555
Subject:
Palo Verde Nuclear Generating Station (PVNGS)
Unit 2 Docket No. STN-50-529 Justification for Interim Operation for Containment Water Level Instrumentation'ile:
85-056-026
Dear Mr. Knighton:
The attachment provides a justification for interim operation for PVNGS Unit 2 until the containment water level instrumentation can be surveillance tested.
A surveillance test will be used instead of a preoperational test to demonstrate the operability.
In the PVNGS TMI Lessons Learned Implementation Report (LLIR), item II.F.1.5, ANPP committed to have the instrumentation for containment water level pre-opera-tionally tested prior to fuel load.
Due to a
design change that affects the surveillance
- test, the test will not be performed prior to fuel load.
We would like to request an exception to the previous commitment until Mode 3.
Mode 3
is when the instrumentation is required per the Technical Specifications.
Attach-ed is a justification for interim operation.
If you have any further questions, please contact Mr. W. F. Quinn of my staff.
Very truly yours, csu-'.'xecutive Vice President Project Director EEVB/JKO/rw Attachment cc: E.
M.
R.
R.
A.
J.
A. Licitra Ley P.
Zimmerman C. Sorenson C. Gehr B. Martin 85i2020462 85ii27
'DR ADOCK 05000529t A
PDR yon/
t
Attachment 1
JUSTIFICATION FOR INTERIM OPERATION
TAG NUMBERS SI-706 ARB SI-707 ARB DESCRIPTION INSTRUMENTATION INDICATING THE CONTAINMENT WATER LEVEL PROJECTED COMPLETION PRIOR TO INITIALMODE 3 ENTRY HISTORY:
A design change affecting the surveillance test for the containment water level instrumentation is not complete and will not be completed prior to fuel load.
A surveillance test will be done instead of a preoper-ational test to demonstrate the operability of the instruments.
Surveillance requirements of the Technical Specification adequately determines operability.
A functional test of the instrumentation has been completed.
This instrumentation was committed to in the PVNGS LLIR II.F.1.5 and is also a Regulatory Guide 1.97 Revision 2 instrument.
JUSTIFICATION FOR INTERIM OPERATION:
These instruments are wide-range instruments used for monitoring the containment water level.
They are required by the Technical Specification by Mode 3. There are narrow-range containment water level instruments that have been pre-operationally tested and can provide indication of rising water level inside containment.
With a new core there is no decay heat prior to initial'ode 3 entry, therefore, this issue has no safety significance.
Other instruments are available to further investigate any accident-type situation that may occur.
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