ML20080S994

Summary & Evaluation Rept of Rl Cloud & Assoc Rept, Diablo Canyon Unit 1 Idvp - Verification of Design Analysis Hosgri Spectra

ML20080S994
Person / Time
Site:	Diablo Canyon
Issue date:	09/01/1983
From:	BROOKHAVEN NATIONAL LABORATORY
To:
Shared Package
ML20080S984	List: ML20080S989 ML20080S991 ML20080S994 ML20080S998 ML20080T003 ML20080T005 ML20080T009 ML20080T013 ML20080T016
References
FOIA-83-483 NUDOCS 8310180617
Download: ML20080S994 (3)

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SUMMARY

AND EVALUATION REPORT Report Ti.tl e: Diablo Canyon Unit I Independent Design Verification Program Veri ficatic.a of Design Analysis Hosgri Spectra Report No. ITR-10, Rev.10 Report Date: 12/6/82 Autho r: Robert L. Cloud Associates ~

Edward Deni son Project Manager 8310180617 830901

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1.0 INTRODUCTION

This is a review of ITR #10, Rev. O, "Diablo Canyon Unit I Independent Design Verification Program - Verification of Design Analysis H0SGRI SPECTRA".

The review is based upon raterial contained in the report itself. Di scussions were not held with IDVP staff nor were any of the data contained in the ITR-10 references veri fied.

2.0

SUMMARY

The objective of the ITR is to review the extent to which the HOSGRI spectra were properly applied in design applications. The design bases spectra are contained in DCM C-17, Rev. 3. RLCA compared the design bases spectra as of November 1981 with t_ hose contained in the latest URS/Blume building reports. The spectra contained in DCM C-17 were found to be in agreement with the URS/Blume spectra with three exceptions for which E01's were issued: These are:

0 Auxiliary building NS spectra O Intake structure 8 Auxiliary building torsional canbination method RLCA next verified that all locations in the plant had specified design spectra. In this review they found seven locations for which spectra were not s peci fi ed . These are li sted on page 7 of the ITR. E01's were issued for these.

Spectra used as input for particular design problems were compared with criteria spectra by RLCA. This comparison was performed by: locating support points for piping and/or equipment; determining the criteria spectra for that point from DCM C-17; and conparing that spectra with the spectra actually used in the design. Eleven samples were chosen for equipment verification and ten piping samples were selected. Eighteen E01's were identified for the equip-ment sample and four E01's were found for the piping samples.

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' 3. 0 EVALUATION

~ The review conducted by RLCA _was complete and would be expected to iden-tify any errors which exist 1,n the use of appropriate response spectra for equipment and piping design. It would be helpful to the reviewers of the report if the three spectra (Blume . docketed H0SGRI, and those used in desigr.)

. referred to in the report would be more specifically identified, preferably in graphic and, if possible, digitized format.

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