ML20198J043

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Update to Amended Interim Part 21 Rept Re Harness/Positive Plate Lug Disconnect on List Ish Round Cell Battery.Requests 7-10 Day Extension to Complete Review
ML20198J043
Person / Time
Site: McGuire  Duke Energy icon.png
Issue date: 07/28/1997
From: Hughes T
BELL GEOPHYSICS
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
REF-PT21-97 NUDOCS 9709230156
Download: ML20198J043 (1)


Text

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'l microelectronics group Lucent Technologies Bell Labs innovations 3000 %vime Dovt Me<4usie.TX 75149 Telephnoc 214 264 2000 July 28,1997 p21 9?- 32 4 Document Contrel Desk U.S. Nuclear Regulatory Cortunission ,

Washington.DC 20$55 Re:

Update ta Lucent Technologies Inc. Amended Interim Report of the Harness / Positive Plate Lug Disconnect in List ISH Round Cell Battery On May 25.1997 Lucent Technologies Inc. (' Lucent") foraarded to the Nuclear Regulatory Commission an Amended Interim Report of Investigation on the Hamess/ Positive Plate Lug Disconnect on the List 1SH Round Cell Battery. That Amended Interim Report stated Lucent's intent to investigate serv' e operating conditions as the probable root cause of failure to comp!).

On May 13,1997, the Round Cell Nuclear Utility Users Council discussed the harness /positise plate lug disconnect on the Lucent List i SH Round Cell Battery. This discussion centered on two comparative calculations. First, seismic testing resuhs for IF. certification were compared to the seismic requirernents of the nuclear utilities. In addition, the specific weld dimensions found in the evaluated cells from the McGuire Nuclear Generating Station were compared to weld dimensions likely to be present in the cells used for IE certification. These comparative calculations resulted in the same conclusion reached subsequently by all of the nuclear utilities. Round Cells with the specific weld dimensions of those evaluated (cells from the McGuire Nuclear Generating Station) meet seistnic requirements for all nuclear utihties and do not present a substantial safety hazard.

The Evaluation Report, which addresses Lucent's investigation in more detail, requires further legal review in accordance with 10 CFR section 2.790 Lucent is hereby requesting a short extension of 710 days in which to complete this teview, Lucent will submit the Evaluation Repoit to the Nuclear Regulatory Commission - Document Control Center no later than Thursday, August 7,1997. If there are any requests for clarification, please contact Gus Donnell at (972) 284 3523.

Sincerely, h44 Thomas A. Hughes Director of Quality Lucent Technolopes Inc. - Dallas Works Post it' Fax Note 7671 0**

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