ML17313A678

Summary of 981006 Meeting with Util in Rockville,Md to Discuss SG Replacement & Power Uprate Plans for Plant Unit 2.List of Meeting Attendees & Util Meeting Slides Encl

ML17313A678
Person / Time
Site:	Palo Verde
Issue date:	11/02/1998
From:	Fields M NRC (Affiliation Not Assigned)
To:	NRC (Affiliation Not Assigned)
References
NUDOCS 9811170043
Download: ML17313A678 (39)

Text

f<ovember 2, 1998 LICENSEE:

Arizona Public Service Company FACILITY:

Palo Verde Nuclear Generating Station, Unit No. 2

SUMMARY

'OFMEETING HELD ON OCTOBER 6, 1998, TO DISCUSS THE.

STEAM GENERATOR REPLACEMENT AND POWER UPRATE PLANS FOR PALO VERDE UNIT2 On October 6, 1998, the NRC and the Palo Verde licensee, Arizona Public Service (APS), met in Rockville, Maryland to discuss the steam generator replacement and power uprate plans for Palo Verde Unit 2. This meeting updated the information provided during the April 8, 1998, meeting on these issues.

APS informed the staff that the power uprate scoping study showed acceptable results, and provided additional details on the design, transportation and installation issues for the new steam generators.

Attachment 1 is the list of attendees for this meeting and is a copy of the slides used by the licensee in their presentation.

It was agreed at the conclusion of the meeting that the staff and APS willmaintain communications as developments arise on these issues.

The next meeting between the staff and APS is scheduled for March 1999.

Original Signed By Mel B. Fields, Project Manager Project Directorate IV-2 Division of Reactor Projects III/IV Office of Nuclear Reactor Regulation Docket No. STN 50-529 Attachments:

1. List of Meeting Attendees

2. APS Meeting Slides DOCUMENT NAME: PV106.MTS II:l I d

Docket Files M. Fields PUBLIC P.Gwynn, RIV PDIV-2 R/F P. Harrell, RIV F. Miragiia (FJM)

S. Collins (SJC1)

B. Boger (RPZ)

E. Adensam (EGA1)

W. Bateman (WHB)

E. Peyton (ESP)

T. Martin (SLM3)

NRC Meeting Attendees D. Lange (DLJ)

OFC NAME DATE PDIV-2/gM M

i I s 10/X7/98 PDIV-2/LA

~ey SP 10kB&/98 OFFICIAL RECORD COPY 98iii70043 'P8ii02 PDR ADDCK 05000529 P

PDR

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I cc w/encls:

Mr. Steve Olea Arizona Corporation Commission 1200 W. Washington Street Phoenix, Arizona 85007 Douglas Kent Porter Senior Counsel Southern California Edison Company Law Department, Generation Resources P.O. Box 800

Rosemead, California 91770 Senior Resident Inspector USNRC P. O. Box40 Buckeye, Arizona 85326 Regional Administrator, Region IV U. S. Nuclear Regulatory Commission Harris Tower 8 Pavillion 611 Ryan Plaza Drive, Suite 400 Arlington, Texas 76011-8064 Chairman, Board of Supervisors ATTN: Chairman 301 W. Jefferson, 10th Floor Phoenix, Arizona 85003 Mr. Aubrey V. Godwin, Director Arizona Radiation Regulatory Agency 4814 South 40 Street Phoenix, Arizona 85040 Mr. David Summers Public Service Company of New Mexico 414 Silver SW, ¹1206 Albuquerque, New Mexico 87102 Mr. Robert D. Bledsoe Southern California Edison Company 1'4300 Mesa Road, Drop D41-SONGS San Clemente, California 92672 Mr. Robert Henry Salt River Project 6504 East Thomas Road Scottsdale, Arizona 85251 Terry Bassham, Esq.

General Counsel El Paso Electric Company 123 W. Mills El Paso, Texas 79901 Mr. John Schumann Los Angeles Department of Water & Power Southern California Public Power Authority P.O. Box 51111, Room 1255-C Los Angeles, California 90051 Mr. James M. Levine Senior Vice President, Nuclear Arizona Public Service Company Post Office Box 53999 Phoenix, Arizona 85072-3999 Ms. Angela K. Krainik, Manager Nuclear Licensing Arizona Public Service Company P.O. Box 52034 Phoenix, Arizona 85072-2034 Mr. John C. Horne, Vice President Power Supply Palo Verde Services 2025 N. Third Street, Suite 220 Phoenix, Arizona 85004

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ATTACHMENT1 R

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LC V

L V

TI S

P Mel Fields Christopher Jackson Dick Wessman Eric Weiss Arnold Lee Paul Clifford Mohammad Karbassian

. Carl Churchman Kevin Neese Herb Fontecilla Richard A. Bernier William N. Gardner Richard W. Bradshaw

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ATTACHMENT 2 Palo Ver e team enerator e

acement n

ower rate ro ect Presentation To The Nuclear Regulatory Commission October 6, 1998

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Palo Verde Steam Generator Replacement and Power Uprate Project ar urc man ro ect irector

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ee in ec ives

~ Update of activities since April meeting i Provide status of fabrication activities I

i Review results of scoping study o Discuss transportation study i Provide status of installation plans i Provide summary of RSG schedule

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r ecent ctivities

< Finalized RSG design

~ Completed power uprate scoping study

~ Performed transportation study

~ Reviewing installation plans

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tatus o a rication i Finalized RSG design i Conducted pre-fabrication readiness meeting

~ Fabrication to begin in October 1998

< APS metallurgist and QA engineer at factory

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na ses

~ Scoping study evaluated limiting DBEs Main steam line break Loss of condenser vacuum Feedwater line break Steam generator tube rupture Sheared shaft/seized rotor CEA ejection

~ Preliminary evaluation: sensitivity studies indicate that sufficient margin remains

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t er na ses i Evaluations performed Containment subcompartments Mass 8 energy release for postulated worst case LOCA and MSLB Containment P/T for worst case LOCA and MSLB Containment combustible gas control system Equipment qualification P/T profile Radiological consequences

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t er na ses o Evaluations performed cont.

RCS decay heat Ultimate heat sink performance Main turbine and balance of plant Natural circulation cooldown

~ Preliminary evaluation: sensitivity studies indicate that sufficient margin remains

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o e

~CENTS will be the primary tool for Chapter 15 non-LOCA transient analysis at PVNGS iTopical reports W

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October 1991, June 1993

~ Safety Evaluation Report - March 17, 1994 iPrevious applications 0

tube plugging and replacement SGs

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otentia ec nica eci ication an es

< Definition of Rated Thermal Power i SG Level for RGS loop operability

> Primary to secondary leakage

~ New LCO for SG level operating band

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otentia ec nica eci ication an es o Peak containment pressure i Operating range for cold leg temperature at 100% power

~ Add CENTS to list of COLR analytical methods

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otentia ant o

i ications ower rate

< Helper cooling tower

< High pressure turbine nozzles

~ Main transformer cooling

~ Spray pond temperature indicator i Feedwater heaters i Heater drain tank level control valve i HPSI flow orifices

otentia ant o

i ications team enerator e lacement o Main steam piping at top of steam generator o New downcomer blowdown line

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rans ortation C

i Detailed transport study completed i Recommended route is through Puerto Penasco, Mexico

< Transportation contractor is Fagioli, SpA

< Issues

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nsta ation i Installation plan Confirmed "one piece through the hatch" installation strategy Outage duration - 75 days

> Work authorization Submittal to owners in late 1998/early 1999

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ro ect i estones

< Fabrication milestones next six months Tubesheet cladding and drilling Stub barrel fabrication Lower shell fabrication Tube vendor evaluation and selection i Submittal milestones June 2000 December 2000

~ Palo Verde/NRC meeting - March 1999

P' I

essons carne

~ Inspection reports i NRC generic documents

~ NEI reports

~ Other utilitysubmittals and SERs

< Plant visits during SG replacements

~ Meetings with other utilities