ML20073R683
| ML20073R683 | |
| Person / Time | |
|---|---|
| Site: | Perry  |
| Issue date: | 04/27/1983 |
| From: | Edelman M CLEVELAND ELECTRIC ILLUMINATING CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| REF-PT21-83 10CFR-050.55E, 10CFR-50.55E, RDC-68(83), NUDOCS 8305040486 | |
| Download: ML20073R683 (2) | |
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- 55 PUBLICSOUARE Serving The Best Location in the Nation MURRAY R. EDELMAN VICE NIESIDENT NucuAR April 27, 1983 Mr. James G. Keppler Regional Administrator, Region III Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, Illinois 60137 RE:
Perry Nuclear Power Plant Docket Nos. 50-440; 50-441 Deficiency in the Class IE Low Voltage Switchgear RDC [68(83)]
Dear Mr. Keppler:
This letter serves as the Interim Report pursuant to 10CFR50.55(e) concerning the Class 1E Low Voltage Switchgear furnished by Brown Boveri Electric (BBE).
This condition was first reported to Mr. P. R. Pelke of your of fice on March 29, 1983, by Mr. E. Riley of The Cleveland Electric Illuminating Company (CEI).
On December 22, 1982, Brown Boveri notified the Nuclear Regulatory Commission, under 10CFR21, of a deficiency in the Low Voltage Switchgear.
This report contains a description of the deficiency and corrective action to be taken.
Description of the Deficiency Brown Boveri Electric supplied forty (40) Class 1E Low Voltage Switchgear enclosures to the Perry Nuclear Power Plant (PNPP), Units 1 & 2.
On March 16, 1983, BBE QA representive and PNPP site personnel conducted an on-site inspec-tion of the Low Voltage Switchgear to verify that spot welds and equivalent are welds were in accordance with drawing and manufacturing procedures.
One (1) enclosure was found to be missing spot welds and equivalent arc welds in the rear section connecting the rear vertical corner channel with the rear horizontal channel.
It has been determined by the vendor that the nonconforming condition was caused by manufacturing equipment limitations.
8305040486 830427 bh PDR ADOCK 05000440 S
PDR MAY 2 083
j Nr. Jcmes G. Kspplsr April 27, 1983 f
Corrective Action Because of the nonconforming condition on cubicle EF2005, the seismic integrity of the cubicle is questionnable. Further evaluation would be required to justify this deficiency as nensignificant.
Rather than perform this evaluation, BBE has elected to submit PNPP a welding fix for this cubicle.
PNPP will perform the welding fix with instruction furnished by BBE and qualified proce-dures. We are presently planning to submit our final report on this subject by November 30, 1983.
Please call me if there are additional questions.
Sincerely, h
Murray R. Edelman Vice President Nuclear Group MRE:pab cc:
Mr. M. L. Gildner NRC Site Office Director Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Vashington, D.C.
20555 U.S. Nuclear Regulatory Commission c/o Document Management Branch Washington, D.C.
20555 Records Center, SEE-IN Institute of Nuclear Power Operations 1100 Circle 75 Parkway, Suite 1500 Atlanta, Georgia 30339
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