ML17299B092

Forwards Request for Addl Info Re RCS Pressurizer Vent Flow Path.Info Requested by 860321

ML17299B092
Person / Time
Site:	Palo Verde
Issue date:	03/11/1986
From:	Licitra E Office of Nuclear Reactor Regulation
To:	Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
References
NUDOCS 8603180040
Download: ML17299B092 (8)

Text

Docket Nos.:

50-528, 50-529 and 50-529 MAR 11 1Ã6 Mr. E.

E.

Van Brunt, Jr.

Executive Vice President Arizona Nuclear Power Project Post Office Box 52034 Phoenix, Arizona 85072-2034

SUBJECT:

REQUEST FOR ADDITIONAL INFORMATION -

PALO VERDE RCS

'PRESSURIZER VENT FLOW PATH Confirming telephone discussions with members of your staff, we ask that you provide the additional information identified in the enclosed request by

'arch 21, 1986.

If you have any questions regarding this letter, please contact me.

Sincerely, Ortgtna1 slgMlilg:

iEk lit:itr8 A. Licitra, Project Manager PWR Project Directorate No.

7 Division of PWR Licensing-8

Enclosure:

As stated cc:

See next page Distribution:

Docket File50=528/529/530>

NRC PDR E. A. Licitra Local PDR ACRS (l0)

PBD-7 Reading F. Miraglia OELD E. Jordan B. Grimes J. Partly J. Lee PBD-7 jg

-7 EALicitka/e ighton 3/II/86 3/il /86 031 1 eb03leoOCK 0500pOR OOOO 8bo 05@8 poR AD P

I I'

I h

~

hl I4 j

IA II

~

~

y" g"

)'i Ih q, t 1

h

~ 'i,h

~

~

~

hh hl

ee 0L 0

e

+~

~O

++*++

~

~

UNITEDSTATES

. ', NUCLEAR REGULATORYCOMMISSION WASHINGTON, D. C. 20555 NR L1 tlN Docket Nos.:, 50-528, 50-529 and 50-529 Mr. E. E.,Van'.Brunt, Jr.,

Executive Vice President Arizona Nucleai"Power Project Post Office Box 52034 Phoenix, Arizona 85072-2034

SUBJECT:

REQUEST FOR ADDITIONAL INFORMATION - PALO VERDE RCS PRESSURIZER VENT FLOW PATH Confirming telephone discussions with members of your staff, we ask that you provide the additional information identified in the enclosed request by.

ri March 21, 1986. If you have any questions regarding this letter, please contact me Sincerely,

Enclosure:

As stated E. A. Licitra, Project Manager PWR Project Directorate No.

7 Division of PWR Licensing-B cc:

See next page

1

Mr. E. E. Van Brunt, Jr.

At fzona Nuclear Power Pro)ect Palo Verde CC.

A~thur'. Gehr, Esq.

Snell 8 Milmer 3100 Valley Center Phoenix, Arfzona 85073 Hr.. James H. Flenner, Chief Counsel Arizona Corporation Cnnmfssfon 1200 Mest Mashington Phoenix, Arizona 85007 Charles R. Kocher, Esq. Assistant Councfl James A. Boeletto, Esq.

Southern California Edison Company P.

D. Box 800

Rosemead, Cal ifornfa 91770 Mr. Mark Ginsberg Energy Director Office. of Economic Planning and development 1700 West Washinqton - 5th Floor Phoenix, Arizona 85007 Mr. Mayne Shirley Assistant Attorney General Bataan Memorial Building Santa Fe, New Mexico 87503 Hr. Rov Ziamerman U.S.. Nuclear Regulatory Commission P. 0. Box 239 Arlfngton, Arizona 85322 Ms. Patricia Lee Hourihan 6413 S. ?6th Street Phoenix,'Arizona 85040 Regional Administrator, Reoion V

U. S. Nuclear Regulatnry Coomission 1450 Maria Lane Suite 210 Malnut Creek, California 94596 Kenneth Berlin, Esq.

Minston 5 Strawn Suite 500 2550 M Street, NM Washington, DC 20037 Ms. Lynne Rernabei Government Accountability Prospect of the Institute for Policy Studies 1901 Due Street, NW Washington, OC 20009 Ms. Jill Morrison 522 E. Colgate Tempi, Arizona 85238 Hr. Charles

8. Brinkman, Manager

'ashington Nuclear Operations Combustion Engineering, Inc.

7910 Woodmont Avenue Suite 1310

Bethesda, Maryland 20814 Hr.

Ron Rayner P. 0.

Box 1509

Goodyear, AZ 85338

0

~

~

r ENCLOSURE Palo Verde Units I, 2 and 3

Re uest For Additional Information Your new steam generator tube rupture (SGTR) analysis assumes the operation of the RCS vent system pressurizer flow path rather than the formally assumed auxiliary pressurizer spray system (APSS).

This new reliance on the RCS vent system:should be accompanied with a verification of the system's capability to perform its function as assumed.

Accordingly, please provide the following information:

a.

The results of tests or other plant data that demonstrate the capability of the RCS vent system to perform its function as assumed e.g., to depressurize the RCS at the rates assumed in the SGTR accident analysis.

The tests should have been conducted and the data obtained at plant conditions that either bound or are consistent with those assumed in the latest SGTR accident analyses.

b.

If such tests have not been done, or if the appropriate data is not available, either propose a schedule for obtaining this data or justify not doing so.

~ 5 f