ML19256F645
| ML19256F645 | |
| Person / Time | |
|---|---|
| Site: | Yellow Creek  |
| Issue date: | 11/26/1979 |
| From: | TENNESSEE VALLEY AUTHORITY |
| To: | |
| Shared Package | |
| ML19256F644 | List: |
| References | |
| NCR-YC-034, NCR-YC-34, NUDOCS 7912190698 | |
| Download: ML19256F645 (1) | |
Text
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ENCLOSURE YELLOW CREEK NUCLEAR PLANT UNITS 1 AND 2 DEFECTIVE ELECTRICAL CONDUIT NCR YC-034 REV. 1 10 CFR 50.55(e)
FIRST INTERIM REPORT Description of Deficiency Defective intermediate metal conduit, manufactured by Triangle PWC of f
New Brunswick, New Jersey, has been received at the site.
The defects have been identified as damaged threads, burrs, out of round, and flaking of the galvanized coating. This conduit is for use as electrical conduit in both Class lE and non-Class IE applications. A portion of the defective piping is thought to have been embedded.
Interim Progress TVA is inspecting all conduit that has not been embedded, and any found defective will be returned to Triangle PWC.
TVA is working to identify if defective conduit has been embedded and is taking steps to correct the defects should any be found. Triangle PWC is examining their manu-facturing process to identify the reason (s) for the defects.
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