ML19262A687

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Responds to NRC 791115 Request Re Confirmatory Piping Analysis for Facility.Forwards Info for RHR Pipe Line.Time History Responses for Relative Anchor Motion & OBE Response Spectra Will Be Forwarded.W/O Encl
ML19262A687
Person / Time
Site: LaSalle  Constellation icon.png
Issue date: 12/05/1979
From: Delgeorge L
COMMONWEALTH EDISON CO.
To: Parr O
Office of Nuclear Reactor Regulation
References
NUDOCS 7912100313
Download: ML19262A687 (2)


Text

  • ': Commonwealth Edison one First National Plaza Chicago. Illinois Address Reply to: Post Office Box 767 Chicago. Illiriois 60690 December 5, 1979 Mr. Olan D. Parr, Chief Light Water Reactors - Branch 3 Division of Project Management U.S. Nuclear Regulatory Commission Washington, D.C. 20555

Subject:

Request for Information Concerning Confirmatory Piping Analysis for LaSalle County Station Units 1 and 2 NRC Docket Nos. 50-373 and 50-374 Reference (a) : O. D. Parr letter to D. L. Peoples dated November 15, 1979

Dear Mr. Parr:

Enclosed for your use is an initial submittal of information in response to the request contained in Reference (a). This package includes the following information for the residual heat removal (RHR) pipe line, 1RH40BA shown in FSAR Figure 3.6-12.

1. RHR Piping Design Specification DS-RH-01-LS
2. Piping Design Table 90lLS
3. (OBE + SRVsym) Response Spectra for Structures
4. LPCI Injection Line Thermal Transient Data
5. Analytical and Physical Data Sheets (10)
6. As-Built Record Data Two additional pieces of information are still in preparation and are expected to be transmitted shortly.
1. Time History Responses for Relative Anchor Motion
2. OBE Response Spectra for Reactor Pressure Vessel, at Pedestal Elevation This information package will allow for the evaluation of the UPSET (OBE + SRV load case discussed in the Mark II Lead Plant Acceptance chkke)ria.

1522 105 300/

S 79121003/3

' Commonwealth Edison Mr. Olan D. Parr: December 5, 1979 One (1) copy of these materials are being submitted to Mr. A. Bournia of your Staff as well as Mr. R. Nanstad of the Oak Ridge National Laboratory. If you have any questions in this regard, please direct them to this office.

Very truly yours, b/ ( .r!

7,. .

.1

.. t: .W L. O. DelGeorge Nuclear Licensing Administrator LOD:mae enclosure cc: A. Bournia (NRC)

R. Nanstad (ORNL) 1522 i06