ML19340C810

Forwards Previously Submitted 790808 Response to IE Bulletin 79-14.Seismic Analysis Applies to Actual Piping Configuration as Part of Facility Const Program

ML19340C810
Person / Time
Site:	Zimmer
Issue date:	12/09/1980
From:	Flynn J CINCINNATI GAS & ELECTRIC CO.
To:	Peltier I Office of Nuclear Reactor Regulation
References
IEB-79-14, NUDOCS 8012170502
Download: ML19340C810 (1)

Text

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TIIE CINCINNATI G AS & ELECTitIC CO.\ll".\ N Y l

Docket No. 50-358 December 9, 1980 Mr. I. A. Peltier Project Manager U.S. Nuclear Regulatory Commission Phillips Building 7920 Norfolk Avenue

• Bethesda, Maryland 20014 RE: WM. H. ZIMMER NUCLEAR POWER STATION -

UNIT 1 - RESPONSE TO IE BULLETIN 79-14 Gentlemen:

Attached for the use of NRR Staff is one copy of the CG&E response to IE Bulletin 79-14. This material was previously submitted to the NRC's Region III Office of Ine 9ction and Enforcement on August 8, 1979.

Very truly yours, THE CINCINNATI GAS & ELECTRIC COMPANY By JAMES D. FLYNN, Manager

_. Licensing and Environmental Affairs JDF: dew Enclosure l cc: H. C. Brinkmann D. J. Frederick G. M. Pemberton W. W. Schwiers 037 W. D. Waymire 3 i.-

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RE: 'II . H. ZI'01ER NUCLEAR POWER STATION - UNIT 1 i n t.e - ,

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IE_BL1LETIN_79-1'-f DOCKET 50-358

'#. O . 57300, JOB E-5590 In response to IE Bulletin 79-14, dated July 2, 1979, we submit the ,

l following:

Fo r WM. H . ZDDtER NUCLEAR POWER STATION - UNIT 1, all Seismic Category I systems are being verified that the seismic analysis applies to the actu tl piping configuration as a part of the Zimmer Construction Program. Field inspections are performed on each system to verify pipe support design and location, embed- ,

ments, attachments, and valve location and orientation. The architect-engineer, l Sargent & Lundy, also verifies actual valve and valve operator weights by the use of certified vendor data.

The field inspection data, in the form of marked-up drawings, are for- I warded to Sargent & Lundy to assess the validity of the original system analysis.

This work is performed on a sub-system basis and is illustrated by " Attachment A", Status of Piping Analysis, which shows the sequence for piping calculations, review, and reanalysis, if required. Sargent & Lundy submits sub-system packages to the field office for their review and comment to cover the as-built conditions for piping and pipe supports. " Attachment B", letter SLC-12875, is a typical trans- l mittal of a subsystem package.

i The field review and inspection of seismic pipe supports is governed by  ;

Construction Inspection Procedure MC-5, " Final Inspection of Pipo Supports".-

Attachment C. CGLE QA is responsible for audit and implementation of Procedure ,

MC-5. Installed supports which deviate from design drawings are reworked or I

modified to com 1" 4~ b a Design Document Change <t Internal DU?LICATE DOCUMENT g analysis are governed by Piping Anal-ysis, Hanger and Entire document previously at D. For illustrative pur entered into system under: rnal trans-mittals which de uction Pro-cedure for a tyr ANO 79 ((hh[4-No. of pages: df