ML20071G704

Forwards Minutes of 830421 Meeting W/Util & S&W Re Clarification of Addl Items in Independent Design Review

ML20071G704
Person / Time
Site:	Shoreham File:Long Island Lighting Company icon.png
Issue date:	05/06/1983
From:	King J TELEDYNE ENGINEERING SERVICES
To:	Harold Denton Office of Nuclear Reactor Regulation
References
5633-67, NUDOCS 8305240342
Download: ML20071G704 (3)

Text

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- ENGINEERING SERVICES 130 SECONO AVENUE WALTHAM, M ASSACHUSETTS 02254 G17) 890 3350 TWX (710) 324-7508 May 6, 1983 5633-67 Mr. Harold Denton, Director Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission 7920 Norfolk Avenue Bethesda, Maryland 20114

Subject:

Independent Design Review for the Shoreham Nuclear Power Station

Reference:

TES Letter No. 5633-43 to USNRC dated February 11, 1983

Dear Mr. Denton:

In accordance with the procedures defined in the referenced letter, we are forwarding a copy of the minutes of the meeting held on April 21, 1983, between TES, LILC0 and SWEC personnel. The purpose of this meeting was for further clarification of several TES review items classified as Additional Concerns.

If you have any questions or comments, please do not hesitate to contact Mr. Donald F. Landers or the writer.

Very truly yours, TELEDYNE NGINEERI G SERVICES James .

W'/.

'ing Assist Project Manager JFK/lb Attchment cc: D. F. Landers (TES)

J. A. Flaherty (TES)

J. H. Malonson (TES)

TES Document Control 8305240342 830506 0OI DR ADOCK 05000 ENGINEERS AND METALLURGISTS I)1 m -

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'A'TF1 FrVNE ENGINEERING SERVICES Interface Meeting for Discussion of Several TES Review Items, Part of IDR for Shoreham Nuclear Power Station, Held at Teledyne Engineering Services April 21, 1983 - 1:00 PM Attendees LILC0 TES SWEC E. F. Montgomery D. F. Landers R. E. Foley i J. A. Flaherty R. Hankinson J. P. King C. Malovrh L. J. Diluna G. S. Blanchet R. M. Pace L. E. Barron TES Review Item ICR No. 5633-27 (a) LILC0/SWEC have completed a review of stress intensification factors (SIF's) utilized for branch connections, where branch piping is included in the computer model, for all AX piping models.

Some discrepancies in values of SIF's have been found, but no Code allowables have been exceeded.

(b) A detailed discusson was held for clarification of TES' concern with respect to the intensification of the run pipe stresses at branch line connections.

TES Review Item ICR No. 5633-21 l

SWEC personnel presented a description of their interface procedures and means of transmitting reported valve accerlation values from pipe stress analysis to valve qualification review, including the inherent conservatisms present in their analytical methods.

At TES request, SWEC described the method of how valves are tested to determine allowable acceleration values.

LILC0/SWEC is performing a study of all valves, with extended operators, l evaluating the local coordinate values of valve accelerations to the specified allowables. In a few cases a more accurate model of the valve may be utilized in the dynamic piping model.

~ [- W Tri W NE Minutes af April 21, 1983 ENGNEERING SERVICES Page 2 TES Review Item ICR No. 5633-2 Reference Meeting Notes of April 8,1983, Item (5) for ICR No. 5633-2.

In reviewing SWEC procedures for support trunnions attached to pads on pipes, TES had additional questions partaining to the limits of pad vs.

pipe thicknesses and the percentage of pad thickness used in the appropriate analyses. LILC0/SWEC will address these questions as part -

of the formal response.

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