ENS 45696

v t e ENS Event
05:00 Jan 6, 2010
Title	Installation of Incorrect Transformer on a Control Board for a Battery Charger
Event Description	On January 6, 2010, Thomas & Betts (TNB) informed United Controls International (UCI) that TNB's sub-contractor (RBB Systems) had installed the incorrect transformer on a sub-component (control board) of a Cyberex battery charger. During a review of the Bill of Material (BOM) and assembly documentation for the control board by TNB, it was discovered that the incorrect transformer was being installed on the board. The control board affected is designed for systems with a 120 VAC primary input voltage. The incorrect transformer installed is designed for systems with a 208 VAC primary input voltage. Subsequent testing and risk assessment performed by TNB's sub-contractor, RBB Systems, found that under nominal input voltage, the control card operated marginally. Under low input voltage, the card could fail to operate properly, which could cause a failure of its parent component, the battery charger. Per TNB, the only sale on record of the Cyberex battery charger is of eight units sold to Philadelphia Electric Company (now part of Exelon-Peach Bottom Nuclear Power Station) in 1993, which are designed for 120 VAC primary input voltage to the control board.

ENS 45696 +/-
Where
Thomas And Betts Tucker, Georgia (NRC Region 1)
Organization:	United Controls International
Reporting

10 CFR 21.21
Time - Person (Reporting Time:+895.47 h37.311 days <br />5.33 weeks <br />1.227 months <br />)
Opened:	Robert B. Hale 12:28 Feb 12, 2010
NRC Officer:	Vince Klco
Last Updated:	Feb 12, 2010
45696 - NRC Website
v • d • e

v t e Emergency Notification System
Thomas And Betts with 10 CFR 21.21, Notification of failure to comply or existence of a defect and its evaluation
WEEKMONTHYEAR2010-01-06T05:00:00 [Table view]
[ENS list for Thomas And Betts]

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