ML20112J727
| ML20112J727 | |
| Person / Time | |
|---|---|
| Site: | Perry  |
| Issue date: | 03/27/1985 |
| From: | Edelman M CLEVELAND ELECTRIC ILLUMINATING CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| REF-PT21-85-191-000 (RDC-114(84)), PT21-85-191, PT21-85-191-000, NUDOCS 8504050289 | |
| Download: ML20112J727 (2) | |
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b Doi TiiE CLEVELAND ELECTRIC ILLUMIN ATING COMPANY P.O. BOX 5000 - CLEVELAND. OHIO 44101 - TELEPHONE (216) 622-9800 - lLLUMINATING BLDG.
- 55 PUBLICSQUARE Serving The Best Location in the Nation MURRAY R. EDELMAN March 27, 1985 VICE PRESIDENT NUCMAR 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 Power Lead Gland Assemblies Supplied by Conax
[RDC 114(84))
Dear Mr. Keppler:
This letter serves as our final report pursuant to 10CFR50.55(e) concerning power lead gland assemblies furnished by Conax.
Our evaluation of this condition per our Deviation Analysis Report 201 was first reported by Mr.
P. Martin of The Cleveland Electric Illuminating Company to Mr.
J. McCormick-Barger of your office on September 14, 1984.
Previous correspondence on this subject was transmitted October 10, 1984 and February 20, 1985.
Our evaluation has determined that this potential defect is not reportable pursuant to the requirements of 10CFR50.55(e).
Description of Deficiency Conax supplied 821 power lead gland assemblies to the Perry Nuclear Power Plant (PNPP), Units 1 and 2, under procurement specification 793-12.
On August 31, 1984, Conax filed a 10CFR21 report with the Nuclear Regulatory Commission concerning the power lead gland assemblies, Conax part numbers 7D92-11000-01 through 7D92-11000-04, and 7D92-11001-01 through 7D92-11001-05, aupplied to PNPP, and N-11150-01 and N-lll51-01 supplied to Vermont Yankee Nuclear Plant.
The nature of the defect is a potential loss of continuity, as a result of a gradual reduction in the cross-sectional area cf '.he conductors in the internal sealant area of the gland wh:ci could eventually lead to total conductor separation.
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Mr. Jamen G. Kappler March 27, 1985 Further investigation by our Project Organization revealed that 338 power lead gland assemblies were in various stages of installation on Unit 1, with the remainder located in the PNPP warehouse.
Completion of Evaluation Nonconformance Reports TAS 90-and TAS 91 were issued for Unit 1 and Unit 2 respectively, to document.this potential deficiency and track ~ resolution of this problem.
To assess applicability to PNPP, forty-one lead gland assemblies were returned to Conax for their evaluation of the parameters that may cause this potential defect.
The data analysis contained in the Conax Final Engineering Report to PNPP (IPS-1233) indicates that the power lead gland assembly design supplied to The Cleveland Electric Illuminating Company, as determined by thermal type testing in conjunction with design analysis, would exhibit no loss of continuity and is acceptable for use at the previously qualified service environment of 144 degrees Fahrenheit for a 40 year duration.
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Please call if there are any additional questions.
Sincerely N
Murray R. Edelman Vice President Nuclear Group j
MRE: gin cc:
Mr. J. A. Grobe USNRC Site Office, SBB50 i
Mr. D. E. Keating USNRC Site Office, SBB50 Director Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, D.C. 20555 U.S. Nuclear Regulatory Commission c/o Document Management Branch Washington, D.C. 20555 i
Records Center, SEE-IN Institute of Nuclear Power Operations 1100 Circle 75 Parkway, Suite 1500 Atlanta, Georgia 33039 4
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