ML20097H839
| ML20097H839 | |
| Person / Time | |
|---|---|
| Site: | Wolf Creek  |
| Issue date: | 09/05/1984 |
| From: | Koester G KANSAS GAS & ELECTRIC CO. |
| To: | Hunter D NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| KMLNRC-84-159, NUDOCS 8409210011 | |
| Download: ML20097H839 (1) | |
Text
KANSAS GAS AND ELECTRIC COMPANY
[
THE ELECTAC COMPANY otrum t norstra V8CE ##EEDEsef. sevCLE AS September 5, 1984 5
Mr. D.R. Hunter, Chief Reactor Project Branch 2 pf h5 (? '] }
U.S. Nuclear Regulatory Commission Region IV l j[P - -- -
__ _,l 611 Ryan Plaza Drive, Suite 1000 i
h@ l Qg Arlington, Texas 76011 KMLNRC 84-159 Re: Docket No. STN 50-482 Subj: Final 10CFR50.55(e) Report - In-core Thermocouple Adaptor Cable Connectors
Dear Mr. Hunter:
This letter provides the final report submitted pursuant to 10CFR50.55(e) concerning in-core thermocouple adaptor cable connectors at Wolf Creek Generating Station (WCGS). This matter was initially reported by Mr. H.K.
Chernoff of Kansas Gas and Electric Company (KG&E) to Mr. Lawrence Martin of the Nuclear Regulatory Commission, Region IV, on August 6,1984.
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Subsequent to component testing, more than half of the class lE thermo-couple connectors for the in-core thermocouple adaptor cables were found to have cracked or broken insulation inserts. These connectors were manufactured by CKB Industries, Inc. (Part No. 211140 - male, and Part No. 211141 - female). Although the exact cause cannot be determined, mishandling in the field has been identified as the probable cause of the connector damage observed. As a result of the number of damaged con-nectors discovered, KG&E has elected to replace all of the in-core thermo-couple adaptor cable connectors with new connectors manufactured by CKB Industries, Inc. (Part Numbers 211145 and 211146). These connectors incorpcrate a key and keyway design feature to minimize the possibility of connector damage as a result of mishandling.
The existing in-core thermocouple adaptor cable connectors will be replaced prior to fuel load. Please contact me or Mr. Otto Maynard of my staff if you have any questions concerning this subject.
8409210011 840905 Yours very truly, PDR ADOCK 05000482 GLK:bb
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