ML17298A443

Requests Addl Quantitative Analysis to Support 821230 Conclusions Re Failure of E-NNN-D11 Panel.Transient Scenarios Bounded by FSAR Chapter 15 Analyses.Notification of Planned Submittal Date Requested

ML17298A443
Person / Time
Site:	Palo Verde
Issue date:	06/17/1983
From:	Knighton G Office of Nuclear Reactor Regulation
To:	Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
References
NUDOCS 8307070427
Download: ML17298A443 (6)

Text

gUN 1 V 1983 DISTRIBU~g

<Document control 50-528/528/530-<

LPDR NSIC NRC PDR PRC System Docket Nos.:

50-528, 50-529 and 50-530 Mr. E.

E.

Van Brunt, Jr.

Vice President - Nuclear Projects Arizona Public Service Company Post Office Box 21666 Phoenix. Arizona 85036 LB¹3 Reading JLee EALicitra

Jordan, IE Taylor, IE

Attorney, OELD ACRS (16)

Subject:

Request for Additional Information - ('ialo Verde, Units 1, 2 and 3

By letter dated December 30, 1983. you provided information concerning multiple control system failures due to common power sources, common sensor or common instrument tap failures.

Hith once'xtception, these transient scenarios are bounded by the Chapter 15 analyses included in the Palo Verde FSAR.

For the exception, 5.e., faulure of the E-NNN-Dll panel, you state that although this scenario is not bounded by the loss-of-feedwater event analyzed in Chapter 15 (since the event did not include consideration of letdown isolation), the rate of RCS inventory addition is small and will not appreciably affect the peak RCS pressure or"; fuel performance aspects of this event.

In addition, you state that sufficient time exists for the operator to take action to prevent the pressurizer from filling.

He request that you provide a more quantitative analysis to support your 1conclusions relating to the failure of the E-NNN-Dll panel.

Please advise us as to when you plan to respond to this request.

If you have any questions regarding this request, you should contact Nanny Licitra, the Licensing P, oject Manager.

Sincerely,

., 1 siGT1ea~V n~1 P3.T1E GEorge >t ~

f.

8307070427 830hi7 PDR ADOCK 05000528 PDR cc:

See next page George tl. Knighton. Chief Licensing Branch No' Division of Licensing OFFICE/

SURNAMEtj'ATE P

DL:LB¹3 ERLic'i'4'r"aTy't 6/j~7j'8Y'""""

~

Q 0 ~ LO ~ 0[0)0

~ ~

keg on

~ ~ ~ ~ ~

(ye gogoooeoetoo NRG FORM 318 (10-80) NRCM 0240 OFFICIAL RECORD COPY USGPO: 1SS1~5.960

t

.r I%

I

Mr. E.

E.

Van Brunt, Jr.

Vice President - Nuclear Projects Arizona Public Service Company P. 0.

Box 21666 Phoenix, Arizona 85036 CC:

Arthur C. Gehr, Esq.

Snell 8 Wilmer 3100 Valley Center Phoenix, Arizona 85073 Charles S. Pierson Assistant Attorney General 200 State Capitol 1700 West Washington Phoenix, Arizona 85007 Charles R. Kocher, Esq.-, Assistant Counsel James A. Boeletto, Esq.

Souther'n California Edison Company P. 0.

Box 800

Rosemead, California 91770 Vs.'Margaret Walker Deputy l3irector of. Energy Programs Economic Planning and Development Office 1700 West Washington Phoenix, Arizona 85007 Mr. Rand L. Greenfield Assistant Attorney General Bataan Memorial Building Santa Fe, New Mexico 87503 Regional Adminstrator-Region V

U. S. Nuclear Regulatory Commission-1450 Maria Lane Suite 210

'alnut Creek, California 94596 Kenneth Berlin, Esq.

Winston

& Strawn Suite 500 2550 M Street, N.

W.

Washington, D.

C.

20037 Lynne Bernabei Government Accountability Project of the Institute for Policy Studies 1901 Que Street, N.

W.

Washington, D.

C.

20009 Resident Inspector Palo Verde/NPS U. S. Nuclear Regulatory Commission P.

0.

Box 21324 Phoenix, Arizona 85001 Ms. Patri'cia Lee Hourihan 6413 S. 26th Street Phoenix-. Arizona 85040

l~

ENCLOSUAE 1

WATERFORD, UNIT 3 E~au) ment Tyys Solenoid Valve 2

Fan NotDr 3.

Splices 4.

Cable, 600V Power and Control 6,

Limit Switch 6.

Transiwi tter (Pr essure/

Floe)

Henvfacturer-ASC0 Joy/Rel iance Okonite

.Okonite Namco Rosenount Nadei No.

HT2068323F HV2068323F'P8331A2E NP83'l664E, HP832041 T-95 Insl. Tape No.

3S Junc..Tape EPR Insul ation EA170 Ser ies ll53AA6 1'l53DA6 Doeenentation Package 3.2H3

. 4.1M3 16.283 6.1N 9.1'W3 S. 1M3 8.

Penetration 9.

H2 Ana'fyzer 10.

Se1ccioe Switch Conax Comsip-Delphi Inc.

General Electric 7.

Floe Indicating Switch ITT Barton 681-1 7320-10001 K-III CR294$ US20SE

36. >~a3 15.183 13,183 55.3N3

N N'

IP.