ML19338G527

Forwards Response to NRC 800815 Ltr Re Violations Noted in IE Insp Repts 50-413/80-16 & 50-414/80-16.Corrective Actions:Ltr Explaining Abbreviation & Defining All Ref Documents Will Be Sent to Design Engineering & Const Depts

ML19338G527
Person / Time
Site:	Catawba
Issue date:	09/09/1980
From:	Parker W DUKE POWER CO.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19338G526	List: ML19338G527
References
NUDOCS 8010310038
Download: ML19338G527 (3)

Text

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i powen 15catmswo 422 Sottu Curucu Sinter, CHAHL r,N.C.26242

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l $ Tease PmODwct 0*u 373-4093 Mr. James P. O'Reilly, Director U. S. Nuc1 car Regulatory Comnission Region II 101 Marietta Street, Suite 3100 Atlanta, Georgia 30303 ,

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Re: RII:GFM 50-413/80-16 1 50-414/80-16 1

Dear Mr. O'Railly:

Please find attached a response to Deficiency No. 413/414/80-16-01 which was identified in the above referenced Inspection Report. Duke Power Company does not consider any information contained in this inspection report to be proprietary.

Ve truly yours, l t'

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u.._ d. cLA 3

! William O. Parker, Jr.

RWO:ses Attachment l

cc: Resident Inspector of NRC l Catawba Nuclear Station 1

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Catawba Nuclear Station USNRC I&E Inspection Report 50-413/80-16 and 50-414/80-16 Response to Violation A of Appendix A Deficiency stated as follows:

As required by Criterion IX of Appendix B to 10CFR50, as implemented by Duke's Topical P.eport, Paragraph 17.1.9, measures shall be established to assure that welding is controlled in accordance with applicable standards.

Contrary to the above, installation Drawing CN-1915-05, Revision 10 displays synbols and letters which are not defined in DPC specifications, design documents, procedures, instructions or in the applicable AUS section for symbols.

Response

In the Catawba PSAR, Section 3.8, reference is made to the AISC fianual of Steel Construction, Seventh Edition, the AISC Specification of the Design, Fabrication, and Erection of Structural Steel Buildings and the AWS Structural Welding Code (AWS Dl.1) for the design, fabrication, and erection of the Nuclear Safety Related structural steel. AWS Dl.1 references the latest edition of AWS A2.4, Symbols for Welding and Nondestructive Testing for the Definition of all Welding Symbols . In addition, the text, AISC Structural Steel Detailing, cross-references the principal parts of the AISC Manual of Steel Construction and various applicable sections of the referenced AISC Specification, and is intended prinarily as a textbook for illustrating current good practice in detailing structural steel. The referenced drawing for Class IE electrical cable tray supports references Specification CNS-ll21.00-1 which in turn references the AISC Manual and AWS Dl.1, for all

field welding.

Further definition of the deficiencies noted on the referenced drawing is given in Section 5a of the Inspection Report, and is as follows:

"During the various interviews, the inspector was given different definitions of what the letters BS and the symbol se stands for, which is s4/' 3/16 \

an undefined symbol and one of the undefined letters used on the aforenoted drawing."

The Edition. letters BS are defined in the text, AISC Structural Steel Detailing, Second ditional referencesAWS Dl.1may andbeA2.4 state that in the tail of the welding symbol ad-stated.

Therefore, Duke concludes that drawing CN-1915-05, Revision 10 does display symbols and letters which are appropriately defined in accordance uith applicable standards. However, to remove the apparent confusion concerning this abbreviation, a clarifying letter will be sent to all Design Engineering and Construction Departments fully explaini.79 the abbreviation and defining all refere nce documents.

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The referenced weld symbol is an incorrect symbol. The correct syr.bol is shown as follows:

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/ (3/16) \

This symbol will be corrected on the referenced drawing. In order to avoid future noncompliances of the same nature, a letter will be sent to all Design Engineering Departments re-emphasizing the use of AWS A2.4 for welding symbols.

The referenced corrective actions will be completed by October 1,1980.

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