ML20070F707
| ML20070F707 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 12/07/1982 |
| 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-22460-GH1, ANPP-22460-GHD, DER-82-44, NUDOCS 8212210225 | |
| Download: ML20070F707 (4) | |
Text
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Dockst Nos.. 50-528/529/530
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2 50.55(o) Report Arizona Public Service Company Po box 21666. PHOENIX, ARIZONA 85036 December 7, 1982 ANPP-22460-GHD/BSK U. S. Nuclear Regulatory Commission Region 7 Creekside Oaks Office Park 1450 Maria Lane - Suite 210 Walnut Creek, California 94596-5368 Attention:
Mr. D. M. Sternberg, Chief Reactor Projects Branch 1
Subject:
Final Report - DER 82-44 A 50.55(c) Reportable Condition Relating to Gould-Brown Boveri Load Centers Have Improperly Crimped AMP Termination Lugs File: 82-019-026 D.4.33.2
Reference:
(A) Telephone Conversation between G. Hernandez and G. Duckworth on August 13, 1982 (B) ANPP-21798, dated September 9, 1982 (Interim Report)
Dear Sir:
Attached, is our final written report of the reportable deficiency, under the requirements of 10CFR50.55(e).
Very truly yours,
\\o n
CLQ ON h E. E. Van Brunt, Jr.
APS Vice President Nuclear Projects Management ANPP Project Director EEVBJr/ Gild:db Enclosure g s,%0'3Y cc: See Attached Page 2 g c, Q\\ %d 8212210225 821207 S'3 DRADOCK05000g
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U. S. Nuclear Regulatory Commission December 7, 1982 Attention:
Mr. D. M. Sternberg, Chief ANPP-22460-GHD/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.
l J. A. Roedel D. B. Fasnacht G. C. Andognini J. R. Bynum A. C. Rogers B. S. Kaplan W. E. Ide J. Vorces J. A. Brand A. C. Gehr V. J. Stubblefield W. G. Bingham R. L. Patterson R. W. Welcher i
R. M. Grant i
D. R. Hawkinson L. E. Vorderbrueggen G. A. Florelli 3
P. P. Klute Lynne Bernabei, Esq.
Harmon & Weiss 1725 "I" Street, NW Washington, D. C. 20006 j
R. L. Greenfield Assistant Attorney General i
Bataan Memorial Building l
Santa Fe, New Mexico 87503 i
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FINAL REPORT - DER 82-44 DEFICIENCY EVALUATION 50.55(e) l 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), also referred to as Gould-Brown Boveri or Gould-I.T.E. in previous Interim Report, several conductors were found partially pulled from the crimped area of AMP-type termination lug connectors.
BBEL provided criteria for corrective action for determining acceptable termination crimps in 480V load centers (PVNGS Specification 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 VIRE I.D.
3E-PGA-L31B2 7
EA3 3E-PGA-L31B2 12 EA8 3E-PGA-L31E4 7
ELll 3E-PGA-L33B3 7
EA31 3E-PGA-L33C3 5
EA23 3E-PGA L33C3 4
EA28 I
3E-PGB L32B4 2
PHTB1 3E-PGB-L32D4 7
EA31 3E-PGB-L34C3 5
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.
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III. CORRECTIVE ACTION All vendor terminations utilizing ANP crimp-type lugs in load centers (Units 1, 2 and 3) supplied by.BBEL under specification 13-EM-017 shall be inspected for compliance to BBEL's visual criteria:
"The conductor shall be flush 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 A!!P connector installed in accordance with Bechtel's termination practices established in construction specification 13-EM-306 (including proper usage and traceability 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 reportability under 10CFR50.55(e), PVNGS Project considers this deficiency to be Reportable by the Supplier under the requirements of 10CFR Part 21. This Deficiency Evaluation Report (82-44) addresses the reporting requirements specified under 10CFR 21.21(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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