ENS Event | |
|---|---|
06:00 Dec 20, 2012 | |
| Title | Part 21 Report - Belden Wire Used On Environmentally Qualified Form-Wound Motors Not Fully Qualified |
| Event Description | Potential Condition: Tennessee Valley Authority (TVA) Power Service Shops (PSS) installed Belden EPDM lead wire in the rewind of Environmentally Qualified (EQ) safety-related motors utilizing EPRI Technical Report (TR) 1003481 and TR 1001036. EPRI informed PSS that the Belden EPDM lead wire had not been fully qualified in accordance with EPRI TR 1001036.
Thirteen (13) motors are affected. Ten (10) Browns Ferry motors, one (1) Watts Bar Unit 2 motor, one (1) Progress Energy [Crystal River] and one (1) Florida Power & Light (FPL) [St. Lucie Plant] . All the customers have been notified of a potential Part 21 condition. Recommendation: Immediate Actions: 1.) Review PSS data to determine affected motors. 2.) Establish an Equivalency Evaluation (EE) for Belden EPDM lead wire for EPRI TR 1003481/1001036 utilizing a TVA qualified winding system that included Belden EPDM lead wire (Wyle Test Report 18070-1). 3.) Review Progress Energy and FPL EQ profiles. 4.) Perform a root cause investigation to determine how this issue occurred. Evaluation/Action Taken: 1.) Action 1 complete. 13 motors affected and all customers notified. 2.) Action 2 - EE developed and currently being reviewed by affected TVA EQ engineers for approval. 3.) Action 3 - FPL indicated that the FPL motor in question had undergone a recent rewind that replaced the lead. Progress Energy provided the EQ profile on 12/20/12 indicating a significant delta between the Wyle Test Report 18070-1 in Radiation (Normal), Radiation (Accident) and accident temperature (Max). Based on this information, the PSS determination was made that defect in a basic component existed and NRC notification was required in accordance with 10 CFR Part 21, section 21.21(d)(1) and section 21.21(d)(3)(i). TVA PSS will provide a follow-up written notification within 30 days pursuant to Part 21.21(d)(3)(ii). Point of Contact- Mark E. Cook, (256) 314-7595 |
| Where | |
|---|---|
| Power Service Shops Muscle Shoals, Alabama (NRC Region 1) | |
| Organization: | Tennessee Valley Authority |
| Reporting | |
| 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect | |
| Time - Person (Reporting Time:+34.72 h1.447 days <br />0.207 weeks <br />0.0476 months <br />) | |
| Opened: | Mark Cook 16:43 Dec 21, 2012 |
| NRC Officer: | Howie Crouch |
| Last Updated: | Dec 21, 2012 |
| 48622 - NRC Website | |
Power Service Shops with 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect | |
WEEKMONTHYEARENS 486222012-12-20T06:00:00020 December 2012 06:00:00
[Table view]10 CFR 21.21(d)(3)(i), Failure to Comply or Defect Part 21 Report - Belden Wire Used on Environmentally Qualified Form-Wound Motors Not Fully Qualified 2012-12-20T06:00:00 | |