ML20073F300
| ML20073F300 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 04/06/1983 |
| From: | Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| To: | Sternberg D NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| REF-PT21-83 10CFR-050.55E, ANPP-23441-BSK, DER-82-44, NUDOCS 8304150464 | |
| Download: ML20073F300 (4) | |
Text
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Docket No. 50-528/529/530 4
50.55(5)rjlyrt
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P?c Arizona Public Service Company gy p8, (( -
3,7p Po nOx U6M. PHOENIX. arf 2ONA 85036 m
April 6, 1983 OU'!Cll; ANPP-23441-BSK/RQT 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:
Final Report, Revision 1 - DER 82-44 A 50.55(e) Report Relating to Gould-Brown Boveri Load Centers Have Improperly Crimped AMP Termination Lugs File: 83-029-026; D.4.33.2
Reference:
A) Telephone Conversation between C. Hernandez and G. Duckworth on August 13, 1982 B) ANPP-21798 dated September 9, 1982 (Interim Report)
C) ANPP-22460 dated December 7, 1982 (Final Report)
Dear Sir:
Enclosed is revision one of the subject Deficiency Evaluation Report under the requirements of 10CFR50.55(e). This revision provides additional clarification of equipment to be inspected for compliance with crimp requirements.
Very truly ours, 6LLL
%C 4
E. E. Van Brunt, Jr.
APS Vice President, Nuclear Projects ANPP Project Director EEVB/RQT:wp Attachment cc: See Attached Page Two 8304150464 830406 PDR ADOCK 05000528 S
i U. S. Nuclear Regulatory Commission Page Two ANPP-23441-BSK/RQT cc:
Richard DeYoung, Director Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission Washington, D. C. 20555 T. G. Woods, Jr.
G. C. Andognini J. A. Roedel D. B. Fasnacht A. C. Rogers B. S. Kaplan W. E. Ide J. Vorees J. R. Bynum D. D. Green P. P. Klute A. C. Gehr W. J. Stubblefield W. G. Bingham R. L. Patterson R. W. Welcher R. M. Grant D. R. llawkinson L. E. Vorderbrueggen G. A. Fiorelli
i FINAL REPORT, REVISION 1 - DER 82-44 DEFICIENCY EVALUATION 50.55(e)
ARIZONA PUBLIC SERVICE COMPANY (APS)
PVNGS UNITS 1, 2 & 3 I.
Description of Deficiency During QC surveillance of the class IE 480V load centers supplied by Brown Boveri Electric Company (BBEL) several conductors were found partially pulled from the crimped area of AMP type lug connectors.
BBEL provided criteria for corrective action for determining acceptable termination crimps in 480V load centers furnished under PVNGS specifi-cation 13-EM-017. A followup random inspection performed by Bechtel construction in Unit 3 load centers (9 cubicles noted below) revealed that not all lug terminations were in compliance; however, no open circuits were apparent.
In some cases, conductors were less than flush with the crimp connector barrel, and the ends of the wires were not visible under high intensity light and magnification.
L/C CUBICLE TERM. POINT WIRE I.D.
3E-PGA-L31B2 7
EA3 3E-PGA-L31B2 12 EA8 3E-PGA-L31E4 7
EL11 3E-PGA-L33B3 7
EA31 3E-PGA-L33C3 5
EA23 3E-PGA-L33C3 4
EA28 3E-PGB-L32B4 2
PHTB1 3E-PGB-L32D4 7
EA31 3E-PCB-L34C3 6
EA23 3E-PGB-L34C4 1
EK2 3E-PGB-L34C4 2
AH7 3E-PGB-L32D3 2
AB7 II.
ANALYSIS OF SAFETY IMPLICATIONS This condition is evaluated as Reportable. Connections with reduced contact area in termination lug barrels do not adequately assure the degree of electrical continuity required for reliable operations.
If inadequately crimped lugs were left uncorrected, potential open circuits could jeopardize safety related functions of these load centers.
i
i O
FINAL REPORT, REVISION 1 - DER 82-44 Page Two III. CORRECTIVE ACTION All Class IE terminations, and the non-Class IE terminations associated with the non-Class IE Auxiliary Feedwater Pump, which utilize AMP crimp type lugs in load centers (Units 1,2,3) supplied by BBEL under specifi-cation 13-EM-017 shall be inspected for compliance to BBEL's visual
/hh criteria, which provide that the conductor shall be approximately flush with or protrude through the connector barrel up to approximately 1/16 inch. Any connectors which do not meet this requirement shall be removed and have a new AMP connector installed in accordance with Bechtel's termination practices established in construction specifi-cation 13-EM-306 (including proper usage and traceabilty of crimping tools).
This condition will be corrected via the following Design Change Packages:
10E-PG-016 20E-PG-016 30E-PG-016 In addition to reportabilty under 10CFR50.55(e), PVNGS Project considers the deficiency to be Reportable by the supplier under the requirements of 10CFR Part 21.
Deficiency Evaluation Report 82-44 addresses the reporting requirements specified under 10CFR21.21(b) (3) with the exception of sub part (vi) which requires the number and location (customers and/or facilities) of other possibly defective equipment. A copy of this report will be sent to BBEL requesting their review for reporting under 10CFR Part 21, including number and location of all components supplied.
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