ML20024A486
| ML20024A486 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 06/06/1983 |
| 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-23953-RQT, DER-83-31, NUDOCS 8306170366 | |
| Download: ML20024A486 (3) | |
Text
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RECGVED H%
i Arizona Public Service Company Po. BOX 21666. PHOENIX, ARIZONA 85036 lb h3 June 6, 1983 ANPP-23953-RQT/gg.g, g U. S. Nuclear Regulatory Commission Region V Creekside Oaks Office Park 1450 Maria Lane - Suite 210 Walnut Creek, CA 94596-5368 Attention: Mr. D. M. Sternberg, Chief Reactor Projects Branch 1
Subject:
Interim Report - DER 83-31 A 50.55(e) Potentially Reportable Deficiency Relating to Temperature Rise In Diesel Generator Control Cabinet Could Exceed Design Requirements.
File:
83-019-026; D.4.33.2
Reference:
Telephone Conversation between T. Young and R. Tucker on May 5, 1983.
Dear Sir:
The NRC was notified of a potentially reportable deficiency in the referenced telephone conversation. At that time, it was estimated that a determination of reportability would be made within thirty (30) days.
Due to the extensive investigation and evaluation required, an Interim Report is attached. It is now expected that this information will be finalized by September 6, 1983, at which time a complete report will be submitted.
Very truly yours, CQ,(
ML E. E. Van Brunt, Jr.
APS Vice President, Nuclear Projects Management ANPP Project Director EEVB/RQT:ru Attachment cc:
See Attached Page 2 8306170366 830606 I
PDR ADOCK 05000528 I (
5 PDR E
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U. S. Nuclear Regulatory Commission
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Page Two cc: Richard DeYoung, Director Office of Inspection'and Enforcement U. S. Nuclear Regulatory Commission Washington, D. C. 20555 T. G. Woods, Jr.
G. C. Aadognini J. A. Roedel D. B. Fasnacht A. C. Rogers 4
B. S. Kaplan W. E. Ide J. Vorees J. R. Bynum P. P.'Klute/D._D. Green
'A. C. Gehr W. J. Stubblefield W. G. Bingham R. L. Patterson R. W. Welcher R. M. Grant i
D. R. Hawkinson L. E. Vorderbrueggen G. A. Fiorelli Records Center Institute of Nuclear Power Operations 1100 circle 75 Parkway, Suite 1500 Atlanta, CA 30339 4
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INTERIM REPORT -DER 83-31 POTENTIAL REPORTABLE DEFICIENCY ARIZONA PUBLIC SERVICE COMPANY (APS)
PVNGS UNITS 1, 2, &. 3 I.
Potential Problem During startup testing at full load, a. rapid rise in.tempterature in the Diesel Generator's generator control cabinet (not the' engine
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. control cabinet) was noted. An estimated 120' F was reached. A subsequent test with thermocouples and a recorder in.the cabinet was performed. With a 77* F ambient control room temperature, a temperature of 135' F in the cabinet was attained with the temperature still increasing. At the maximum design ambient temperature of 122* F (reference specification paragraph 4.3.1 and table 4-1), the cabinet temperature could exceed 190* F, which may preclude satisfactory operation of the controls.
II. ' Approach To And Status Of Proposed Resolution Bechtel Engineering is currently corresponding with Cooper Energy.
Services to disposition this condition.
l III. Projected Completion of Corrective Action And Submittal of the Final
, Report i-Evaluation.of this condition and submittal of the Final Report is
-Forecast to be completed by September 6, 1983.
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