ML20067D506
| ML20067D506 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 11/22/1982 |
| From: | Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| To: | Sternberg D NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| 10CFR-050.55E, 10CFR-50.55E, ANPP-22369-GHD, DER-82-62, NUDOCS 8212130320 | |
| Download: ML20067D506 (3) | |
Text
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J Arizona Public Service Company
%/ g'.g Po. SOX 21666. PHOENIX. ARIZONA 85016 j
Ollt: gg N6/0jjpOF November 22, 1982 ANPP-22369-Gild /BSK U. S. Nuclear Regulatory Commission Region V W~
Creekside Oaks Office Park 1450 !! aria Lane - Suite 210 Walnut Creek, California Attention: !!r. D. M. Sternberg, Chief Reactor Projects Branch 1
Subject:
Interim Report - DER 82-62 A 50.55(e) Potential Reportable Deficiency Relating to ESFAS D. C. Power Supply Ground Detectors Supplied By CE Failed Pre-Operational Tests File: 82-019-026 D.4.33.2
Reference:
Telephone Conversation between J. Eckhardt and G. Duckworth on October 21, 1982
Dear Sir:
The NRC was notified of a potential reportabic deficiency in the referenced telephone conversation. At that time, it was estimated that a determination of reportability would be made within thirty (30) days.
2 Due to the extensive investigation and evaluation required, an Interim Report is attached. It is now expected that this information will be finalized by February 9, 1983, at which time a complete report will be submitted.
Very truly yours, G
}
b' E' ctw t a ttt m
E. E. Van Brunt, Jr.
APS Vice President Nuclear Projects !!anagement ANPP Project Director EEVBJr/ Gild:db i
Enclosure cc: See Attached Page 2 l
8212130320 821122 I
PDR ADOCK 05000528 L
S PDR
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1 U. S. Nuclear Regulatory Commission November 22, 1982 Attention:
Mr. D. M. Sternberg, Chief ANPP-22369-Gild /BSK Page 2 cc: Richard DeYoung, Director Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission Washington, D. C. 20555 T. G. Woods, Jr.
J. A. Roedel D. B. Fasnacht G. C. Andognini A. C. Rogers B. S. Kaplan W. E. Ide J. Vorces J. A. Brand A. C. Gehr W. J. Stubblefield W. G. Bingham R. L. Patterson R. W. Welcher R. M. Grant D. R. llawkinson L. E. Vorderbrueggcu G. A. Flore111 J. R. Bynum Lynne Bernabei, Esq.
Ilarmon & Weiss 1725 "I" Street, NW Washington, D. C. 20006 R. L. Greenfield Assistant Attorney General Bataan Memorial Building Santa Fe, New Mexico 87503
. <3)
P INTERIM REPORT - DER 82-62.
POTENTIAL REPORTABLE DEFICIENCY ARIZONA PUBLIC SERVICE COMPANY (APS)
PVNGS UNITS 1 4
3 1
I I.
POTENTIAL PROBLEM' 1
Rochester Specification Technical Manual requirements for ESFAS Equipment supplied by Combustion Engineering (CE) as part of the NSSS are:
Fix Deadband: Less than 1% of span (20!N)
Repeatability: 10.5%
Each Ground Detector must monitor the ESFAS DC Power Supplies and alarm when resistance to ground is less than 100K ohms.
t j
During performance testing of subject equipment, Tag No. 92GS-02248 failed to meet performance requirements as follows:
f Deadband at 100K ohms was approximately 12K ohms.
Repeatability at 100K ohms was as high as 100% (appeared to worsen with time).
j Relays malfunctioned in three (3) out ot four (4) units.
1 1
II. APPROACil TO AND STATUS OF PROPOSED RESOLUTION Dechtel is currently corresponding with CE to disposition this item.
i III. PROJECTED COMPLETION OF CORRECTIVE ACTION AND SUBRITTAL OF Tile FINAL REPORT Evaluation of this condition and submittal of the Final Report is i
l forecast to be completed by February 9, 1983.
4 1
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