ML20010A333

Interim Deficiency Rept Re Rockbestos Coaxial Cable Problem, Initially Reported 810626.Addl Tests Being Performed by Rockbestos.Next Rept Expected by 811120

ML20010A333
Person / Time
Site:	Fermi
Issue date:	07/26/1981
From:	Wells D DETROIT EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
10CFR-050.55E, 10CFR-50.55E, EF2-54127, NUDOCS 8108110321
Download: ML20010A333 (2)

Text

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Donald A. Wells M magm QuaW Assmance (p [!

mg om wasi 9'k Edison E!E!* f d d., 4:.b $

N T,UG 10198W $2 2 v.s.eax uAa,, p, July 26, 1981 EF2-54127 4 f Nf-N4 to Mr. James G. Keppler, Direc'wr Region III U.S. Nuclear Regulatory C& mission 799 Roosevelt Road Glen Ellyn, Illinois 60137

Subject:

Interim Report of 10CFR50.55(e) Item on Rockbestos Coaxial Cable '

Problem (#45)

Dear Mr. Keppler:

On June 26, 1981, Detroit i'disor i Mr. H.A. Walker, Supervisor-Construction Quality Assurance, telephond Mr. J. Smith of NRC Region III, to report on a problem with Rockbestos Coaxial Cable at the Fermi 2 site.

l Detroit Edison had received notification frcm the Rockbestos Cmpru:y that scme of their RSS type coaxial cable had failed while undergoing testing '

at a user's facility. This type cable is used at the Fermi 2 site, however, the specific cable that failed (RSS-6-104) is not used at the Fermi site.

The problem appears to involve all their 100 series type cable. Fermi had not received any of the RSS-6-104 cable, but the coaxial cable received frcm Rockbestos was 100 series cable. Rockbestos 100 series cable installed in the primary containment has been located.

Detroit Edison is awaiting the results of additional tests being performed by Rockoestos. After these results are received an evaluation.will be made to determine if additional action is requimd.

Another report on this item, either interim or final, is scheduled to be sent to you on or before November 20, 1981. If you have questions concerning this matter, please contact Mr. H.A. Walker, Supervisor-Construction Quality Assur-ance.

Very truly yours, W

DAW / HAW /cp )

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r Mr. James G. Keppler, Director July 26,.1981 l Page 'IWo EF2-54127 cc: Mr. Victor Stello, Jr., Directo'r Office of Inspection and Enforcement Division of Reactor Inspection Programs U.S. Nuclear Regulatory Comnission Washington, D.C. 20555 i-Mr. Bruce Little, Resident Inspector U.S. Nuclear Regulatory Ccmnission Resident Inspectors Office -

l 6450 North Dixie Highway Newport, Michigan 48166 I

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