ML20084F859

Provides Info Re Actions Taken to Correct Violation 3.C.A Identified in Concerning IE Insp Repts 50-454/82-05 & 50-455/82-06.Sidewall Pressures Not Exceeded During Cable Pulling

ML20084F859
Person / Time
Site:	Byron
Issue date:	03/15/1984
From:	Tramm T COMMONWEALTH EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
8145N, NUDOCS 8405040338
Download: ML20084F859 (2)

Text

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• C' ;Commonwealth Edison

[ ) one First NabonIf Plaza Chicigo, Ilhnois

( C ~ ] Address Reply to: Post Othee Box 767 y/ Chicago, lihnois 60690 g March 15, 1984. g yyYp\ g ,3 y  ;

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Mr. James G. Keppler g[ pj *? '\. y Regional Administrator y gr 1 U.S. Nuclear Regulatory Commission p/

N 799 Roosevelt Road Glen Ellyn, IL 60137

Subject:

Byron Generating Station Units and 2 IE Inspection Report 50-454/82- 5 and 50-455/82-06 References (a): June 24, 1982 letter from C. E. Norelius to Cordell Reed.

(b): July 30, 1982 letter from W. L. Stiede to J. G. Keppler.

(c): September 22, 1982 letter from C. E. Norelius to Cordell Reed.

(d): November 5, 1982 letter from W. L. Stiede to J. G. Keppler.

(e): February 24, 1983 letter from W. L. Stiede to J. G. Keppler.

Dear Mr. Keppler:

Tnis is to provide information regarding actions taken to correct violation 3.C.A identified in reference (a). As indicated in reference (d), appropriate methods have been established to assure that allowable sidewall pressures are not exceeded during cable pulling operations. In reviewing previously pulled cables, we found that several cables were pulled with tensions exceeding the recently established conservative limits. The manufacturer's analysis of those several cables has now been completed.

As a result of our discussions with the cable manufacturer (Okonite), they submitted revised cable pulling criteria which were based on pull testing conducted in their laboratory. Using the revised criteria, the remaining questionable pull reports were reanalyzed. This analysis identified several cable installations which could not be verified acceptable based on the cable manufacturer's general pull criteria. The details of each such cable installation were forwarded to l

L UAR 161994 8405040338 840315 DR ADOCK 05000 Q .

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J. G. Keppler March 15, 1984 l

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the cable manufacturer with a request that the manufacturer perform a specific analysis to determine acceptability of each cable pull. Based on the cable manufacturer's review, all of these suspect cable pulls were found to be acceptable. .

i The cable pull reports, analysis, calculations and other supporting documentation used in responding to these inspection reports 4 are available for NRC review.

Please address further questions regarding this matter to this Very truly yours, I

I i Ah- -

T. R. Tramm l

Nuclear Licensing Administrator 4

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