ML19350E793

Advises of Delay in Providing Addl Info Re App R Fire Protection Requirements.Tabulations Could Be Provided at Various Phases of NRC Fire Protection Review.Requests Date That Fire Protection Review Will Be Initiated

ML19350E793
Person / Time
Site:	Perry
Issue date:	06/18/1981
From:	Davidson D CLEVELAND ELECTRIC ILLUMINATING CO.
To:	Tedesco R Office of Nuclear Reactor Regulation
References
NUDOCS 8106230527
Download: ML19350E793 (2)

Text

THE CLEVELAND ELECTRIC ILLUMlN ATING COMPANY P o. Box 5000 e CLEVELAND. ohio 44101 e TELEPHONE (216) 622-9800 e ILLUMINATING BLOG. e 55 PUBLIC SoVARE Serving The Best Location in the Nation Dalwyn R.Davidson t1CE PRESiOENT SfSTEM ENGINEERING AND CONSTRUCTION g ($

June 18, @ Q ,

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2 JUN 2 2198F{- ,l Mr. Robert L. Tedesco Assistant Director for Licensing wh%ss 5 h

Division of Licensing b 57 U. S. Nuclear Regulatory Co=nission a g Washington, D.C. 20555

Dear Mr. Tedesco:

Perry Nuclear Power Plant Docket Nos. 50-440; 50-441 Fire Protection In a letter dated April 3,1981, we indicated that additional information on fire pro-tection would be provided before June 19, 1981. After 11trther assessment of the scope of the response to these Appendbt R requirements, we find that the infor=ation you re-quested cannot be submitted as previously stated. The detailed tabulations required by your March 20, 1981 letter are being compiled and, therefore, we need to know a realistic date for the start of your fire protection review. She infor=awien could be provided as various phases are completed, if necessary, to support you_- needs.

We will contact you to coordinate our submittal consistent with your review schedule.

As a sm of our response to the require =ents on separation of cabling for safe shutdown systems, we offer the following infor=ation.

The Perry Project philoscphy with regard to electrical separation criteria is based on IEEE Standard 384-1974, as modified by Regulatory Guide 1.75.

Class lE cables and equipment for redundant divisions are routed in safety-related raceways which are separated in ace 3rdance with the criteria of this standard. Guidelines for separation between Class lE and non-class lE cir-cuits and equipmest are the same as redundant Class 12. Associated circuits are identified and physically separated as Class lE, as specified in IEEE 384-1974. Electrical cables are type tested in accordance with the require-ments of IEEE Standard 383-1974 and certified to be of fire retardant con-struction.

Finally, the methodology employed in the Perry fire hazards analysis is described in Section 2.0 of the Fire Protection Evaluation Report with

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. Mr.~ Robert L.: Tedesco .-Page 2 June 18,' 1981 additional' discussion on the design bases for a Class lE power system in Table 8.1-2 '.of the FSAR. .

If you have any problems with the revised schedule, please let us know.

Very truly yours, Dal R. Davidson Vice President System Engineering and Construction-DRD: dip.

cc: G. Charnoff D.:Hauser i J. Hughes, NRC Resident Inspector t

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