ML19247B013
| ML19247B013 | |
| Person / Time | |
|---|---|
| Site: | Perry  |
| Issue date: | 07/18/1979 |
| From: | Davidson D, Davidson D CLEVELAND ELECTRIC ILLUMINATING CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| NUDOCS 7908060329 | |
| Download: ML19247B013 (2) | |
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T H E C L E V E L A N D E L E C T P. i C I L L U iil l N AT I N G C 0 il, P ;
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b ILLUMINATING BLOG e PUBUC SOUARE o CLE V E LA N D OHIO 44101 e TELEPHONE G16) (231350 e M A!L A D D R E L',
PO BCs NW Serving The Best L.ocation in the M: an Daiwyn R. Davidson VICE PRESIDENT - ENGINEERING July 18, 1979 Mr. James Keppler Director, Regicn III Cffice (.;f Incpecticn and Enfcrce=ent U.S. Nuclear Regulatcry Ccr.iissica 799 Roosevelt Road Glen Ellyn, 7~4 60137 Re Perry Duclear ?cier ? ant Interin Report en Rockbectos Cable Jacket
Dear Mr. Keppler:
This letter is an interin repcrt as required by 1C JFR 5C.5)(e) en the deficiency ccncerning Rockbestos Cc pany cable. This item was first discussed in a telephcne ccnversaticn between yr. M. R. Edelman cf the Cleveland Electric Illucinating Ccapany and Mr. Jim Kenklin of the ITRC Regicn III, Office cf Inspecticn and Enforcene:lt en June 27, 1979 Description cf Deficiency Rockbestes Co. was centracted by the Cleveland Electric Illucinating Co. to manufacture small pcwer and centrol cable for Perry Nuclear Pcwer Plarf. After receipt of the cable it was dicecvered that the cable's hypalen jacket was eccentrisic and at times fell belcw the 8C% tolerance recired in cur speci-ficaticn through 1FCEA standard S-c8-516.
A sampling of the cable received revealed that approximately 65 cf the reels of cable campled contained cable which did not seet the specificaticn r cuirements. Readings as Icw ac 62% cf jacket thicknecc were recorded. As a result there is ccre ccncern that the cable jacket will not be able to fulfill it: intended function (to ecntain and protect the individual conductors) and that incipient faultc could cccur.
Since it is felt that cuch a fault could adversely affect the safe cperaticn er shutdcwn of the nuclear power plant, extensive evaluaticn er extensive repair will be required to establish the adequacy cf the cable jacket to perferr its intended cafety function. At present, the Rcckbestes Co. is prc-pccing to ecnduct worst case pull test utilicing cable with jacke as lcw as 5C$ of specified thickness. These tests are scheduled to be ecniucted the week of August 13, 1979 k
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1 Mr. James Keppler July 18, 1979 Upen receipt of the worst case test results, an evaluaticn cf the results will be.cenducted. The results of this evaluation vill be described in a final re-pcrt to be forwa*
.d to ycu-office by September 23, 1979 Very truly yours, tY
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Dalwyn'R. Davidscn Vice President-System Engineering
& Ccnstructicn DRD:11 cc: Victor Stello, Director Cffice of Inspection and Enforcement U. S. ?!uclear Regulatory Cc=ission Washington, D. C.
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