ML20205N629

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Requests Approval to Use Code Case N-318-2, Procedure for Evaluation of Design of Rectangular Cross Section.... Use of Code Case Will Reduce Hardware Mods Resulting from Stress Reconciliation Program.Approval Requested by 860516
ML20205N629
Person / Time
Site: Beaver Valley
Issue date: 04/29/1986
From: Carey J
DUQUESNE LIGHT CO.
To: Tam P
Office of Nuclear Reactor Regulation
References
2NRC-6-042, 2NRC-6-42, NUDOCS 8605020218
Download: ML20205N629 (1)


Text

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  • 8h'$ a s"uit. 2io '*j'p*]12, 19 6 United States Nucicar Regulatory Connission Washington, DC 20555 ATTENTION: Mr. Peter Tam, Project Manager Division of PWR Licensing - A Office of Nuclear Reactor Regulation

SUBJECT:

Beaver Valley Power Staticn - Unit No. 2 Docket No. 50-412 Use of ASME III Code Case N-318-2 Gentlemen:

Duquesne Light Company (DLC) requests NRC approval to use Code Case N-318-2 (" Procedure for Evaluation of the Design of Rectangular Cross Section Attachments on Class 2 or 3 Piping,Section III, Division I") for Beaver Valley Power Station - Unit No. 2 (BVPS-2). The use of this code case is expected to reduce the amount of hardware modifications resulting from the BVPS-2 stress reconciliation program.

The latest revision (Revision 23) of Regulatory Guide 1.84 lists Code Case N-318-1 as acceptable for use. Based on recent informal discussions with the NRC, it is DLC's understanding that Code Case N-318-2 will be incorporated into Revision 24 of Regulatory Guide 1.84.

The appropriate revisions to the BVPS-2 FSAR, the related specifications, and the BVPS-2 ASME Code Baseline Document will be made upon your approval, which is requested by May 16, 1986.

DUQUESNE LIGHT COMPANY By J. J. Carey 8605020218 860429 PDR Vice President A

ADOCK 05000412 PDR CC: Mr. L. Prividy, Resident Inspector g0 Mr. W. Troskoski, Resident Inspector ,

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