ML20069L375
| ML20069L375 | |
| Person / Time | |
|---|---|
| Site: | Wolf Creek  |
| Issue date: | 04/22/1983 |
| From: | Koester G KANSAS GAS & ELECTRIC CO. |
| To: | Seidle W NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| References | |
| 10CFR-050.55E, 10CFR-50.55E, KMLNRC-83-047, KMLNRC-83-47, NUDOCS 8304280182 | |
| Download: ML20069L375 (2) | |
Text
KANSAS GAS AND ELECTRIC COMPANY THE ELECTFhC COMPANY
@ L E Pe *e L MOESTEn veC E Pet SrOt as? - 8evCLE AR April 22, 1983 Mr. W.C. Seidle, Chief Reactor Projects Branch 2
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U.S. Ndclear Regulatory Commission i
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Region IV
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611 Ryan Plaza Drive, Suite 1000
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Arlington, Texas 76011 l
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I KMLNRC 83-047 j
Re:
Docket No. STN 50-482 G-N Subj: Withdrawal of Potential 10CFR50.55(e) - Stitch 3
Welding on Electrical Raceways and Conduits
Dear Mr. Seidle:
On March 25, 1983, Mr. Zarl Creel of Kansas Gas and Electric Company (KG&E) provided an initial report of a potential 10CFR50.55(e) matter to Mr. William Johnscn of the Nuclear Regu3atory Commission, Region IV, concerning intermittent fillet (s titch) welding on electrical raceways and conduite. As a result of subsequent evaluations, KG&E has determined that this matter is not reportable pursuant to 10CFR50.55(e).
The concern in question was that some stitch welds did not meet the requirements of AWS A2.4, paragraph 4.6.1, in that welds were not located at the ends of the dimensioned length. The welding in q?iestion was to be performed under applicable AWS requirements. The design drawings specified weld lengths and intervals but, because the field conditions typically determine the exact length of the member to be welded, the specified interval did not always resuit in a weld at both ends. AWS requires that the last stitch weld be extended to the end of the member being welded when this condition exists. Craftsmen completed the welds in accordance with specified weld lengths and intervals, but did not per-form the extra welding which would have been required to meet AWS A2.4 requirements.
Nonconformance Report ISN9130EW was issued for this procedural discrepancy and sent to the Architect / Engineer (A/E) for evaluation. The A/E deter-mined that lack of weld material at the dimensioned ends did not, constitute a safety concern because the design calculations were based on minimum total weld lengths on intermittent welds and did not take credit for any additional welding that may be required to meet AWS A2.4, paragraph 4.6.1.
8304280182 PDR ADOCK 05000482 S
PDR 201 N. Merket - Wichita, Kansas - Mail Address: RO. Box 208 i W1ctute, Kansas 67201 - Telephone: Area Code (316) 261-6451
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Mr. W.C. Seidle KMLNRC 83-047 April 22, 1983 As a result of the above information, KG&E withdraws the subject potential 10CFR50.55(e). Please contact me or Mr. Otto Maynard of my staff if you have any further questions concerning this subject.
Yours very truly, ll4ff/I Glenn L. Koester Vice President - Nuclear GLK:bb cc: HRoberds/WSSchum