ML17305A535
| ML17305A535 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 02/05/1990 |
| From: | Conway W ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| 161-02850-WFC-A, NUDOCS 9002220726 | |
| Download: ML17305A535 (6) | |
Text
At CELEBRATED D
BUTION DE MONSATION SYSTEM REGULA Y. INFORMATION DISTRIBUTI~YSTEM (RIDS)
ACCESSION NBR:9002220726 DOC.DATE: 90/02/05 NOTARIZED:
NO DOCKET FACIL:STN-50-528 Palo Verde Nuclear Station, Unit 1, Arizona Publi 05000528 STN-50-529 Palo Verde Nuclear Station, Unit 2, Arizona Publi 05000529 STN-50-530 Palo Verde Nuclear Station, Unit 3, Arizona Publi 05000530 AUTH.NAME AUTHOR AFFILIATION CONWAYgW.F.
Arizona Public Service Co. (formerly Arizona Nuclear Power RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)
SUBJECT:
Forwards info on surveillance of grout seals S spare conduit threaded plugs in fire-rated assemblies.
DISTRIBUTION CODE:
A006D COPIES RECEIVED:LTR ENCL SIZE:
TITLE: OR/Licensing Submittal: Fire Protection NOTES:
Standardized plant.
Standardized plant.
8 05000528 05000529 /
05000530 RECIPIENT ID CODE/NAME PD5 LA PETERSONiS.
INTERNAL: ACRS NRR/DET/ECMB 9H NRR/DST/SPLB8D1 OC/LFMB EG F E
01 EXTERNAL: LPDR NSIC NOTES:
COPIES LTTR E 1
1 1
1 1
1 RECIPIENT ID CODE/NAME PD5 PD NRR WERMEIL,J NRR/DST 8E2 NUDOCS-ABSTRACT OGC/HDS1 NRC PDR COPIES LTTR E 5
CL R
I NOTE K) ALL "RIES" RECIPIENTS:
PIZASE HEXiP US 'IO REDOCE HASTE.'XNI'ACZ THE DOCUMEÃZ CDRZROL DESK, BOCA Pl-37 (EXT. 20079)
IO KXZHZNL'm KKR HME HKH DISX%GHOTXCN LISTS MR DOCUMEHIS YOU DCN~T NEEDt h
D D
S TOTAL NUMBER OF COPIES REQUIRED:
LTTR 23 ENCL
I~ l r
I tt
Arizona Public Service Company P.O. BOX 53999
~
PHOENIX. ARIZONA85072-3999 WILLIAMF. CONWAY EXECUTIVEVICEPRESIDENT NUCLEAR 161-02850-WFC/ACR February 5, 1990 Docket Nos.
50-528/529/530 Document Control Desk U.
S. Nuclear Regulatory Commission Mail Station Pl-37 Washington, D.
C.
20555
Dear Sirs:
Subject:
Palo Verde Nuclear Generating Station (PVNGS)
Units 1, 2,
and 3
Surveillance of Grout Seals and Spare Conduit Threaded Plugs Fire-Rated Assemblies File:
89-056-026 This letter forwards inEormation on the Surveillance of grout seals and spare conduit threaded plugs contained in fire rated assemblies as discussed with Dennis Kubicki on October 6,
1989 and October 19, 1989.
We are clariEying, the fire-rated assembly and penetration sealing program to assure long-term compliance with surveillance testing and configuration control.
We intend to perform the inspection of penetrations sealed by grout as a part of the fire barrier inspection.
The surveillance of the exposed surfaces of each fire-rated assembly, including penetrations sealed by grout, will be conducted on an 18-month frequency in accordance with the fire protection program described in the PVNGS UFSAR. If a grout seal is associated with a conduit pe'netration, any required internal conduit seals will be surveilled as a penc ration type (i.e., 10'ample basis).
We base our approach with the use of grout to the similarity of grout seal characteristics to concrete masonry.
APS intends to surveil spare conduit sleeves which are sealed with threaded plugs as a part of the Eire barrier assembly inspection.
Sufficient detail will be included in the surveillance procedure to assure 100% of the spare conduits will be surveilled.
We base this approach on the fact that threaded conduit plugs do not degrade from environmental affects or are subject to mechanical damage as other sealing devices such as silicone foam.
Any missing or degraded plugs would be recognized in the fire barrier assembly inspection.
ooos28 PDR IEIDOCK 0500 8
<h 1i
Document Control Desk U.
S'. Nuclear Regulatory Commission Page 2
161-02850-WFC/ACR February 5, 1990 Please contact A. Carter Rogers of,my staff at (602) 371-4041 for any questions you may have.
Sincerely, WFC/ACR/)le cc:
T. L. Chan D. H.
Coe J.
B. Martin S.
R. Peterson
~ ~