05000316/LER-1950-316, Advises That Event Described in LER 50-316/86-25 Determined Not Reportable,Per Vendor Info & Engineering Evaluation. Raychron Replacement Timers Seismically Qualified for Use in Exide Battery Chargers.Ler Number Will Not Be Rei

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Advises That Event Described in LER 50-316/86-25 Determined Not Reportable,Per Vendor Info & Engineering Evaluation. Raychron Replacement Timers Seismically Qualified for Use in Exide Battery Chargers.Ler Number Will Not Be Reissued
ML20215F807
Person / Time
Site: Cook American Electric Power icon.png
Issue date: 12/16/1986
From: Will Smith
INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:
NRC OFFICE OF ADMINISTRATION (ADM)
References
NUDOCS 8612240071
Download: ML20215F807 (2)


LER-2050-316, Advises That Event Described in LER 50-316/86-25 Determined Not Reportable,Per Vendor Info & Engineering Evaluation. Raychron Replacement Timers Seismically Qualified for Use in Exide Battery Chargers.Ler Number Will Not Be Reissued
Event date:
Report date:
3162050316R00 - NRC Website

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IMOMMA & MICHIGAN ELECTRIC COMPANY Donald C. Cot

  • Nuclear Plant P.O. Box 458, Bridgman, Mchigan 49106 December 16, 1986 United States Nuclear Regulatory Commission Document Control Desk Washington, D.C. 20555 Operating License DPR-74 Docket No. 50-316 Document Control Manager:

Based on testing information provided by the vendor and an engineering evaluation of these results, the event described in LER 50-316/86-25 was determined to be not reportable and the LER is being withdrawn. The technical review concluded that Raychron (Bristol Saybrook Company) replacement timers are seismically qualified for use in the Exide battery chargers.

AEPSC Corporate Electrical Engineering has reviewed the seismic test reports provided by the battery charger vendor, Exide Elec-tronics. Exide tested an Exide Model UPC 260-3-300 battery charger with a Raychron (catalog number D91A2172H12060-H) equalize timer installed. The results of these testo have been analyzed and found acceptable for the Donald C. Cook Nuclear Plant.

Based upon the evaluation, it is concluded that the Seismic Qualification of the timers is not a concern. Therefore, the LER which was submitted as a precautionary measure,due to the lack of available documentation,was unnecessary and is therefore being withdrawn.

LER 50-316/86-17 is being retracted, the LER number will not be reissued. Please update your records accordingly.

Sincerely,

$m .

Plant Manager

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Document Control Manager December 16, 1986 Page 2 cc: John E. Dolan J.G. Keppler

-M. P. Alexich R. F. Kroeger A. A. Blind H. B. Brugger R. W. Jurgensen NRC Resident Inspector R. C. Callen, MPSC G. Charnoff, ESQ.

D. Hahn INPO PNSRC Dottie Sherman, ANI Library File