ML20198C270
| ML20198C270 | |
| Person / Time | |
|---|---|
| Site: | Bellefonte  |
| Issue date: | 10/16/1985 |
| From: | Hufham J TENNESSEE VALLEY AUTHORITY |
| To: | Grace J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| NUDOCS 8511120036 | |
| Download: ML20198C270 (2) | |
Text
e a
8 TENNESSEE VALLEY AUTHORITY CH ATTANOOGA. TENNESSEE 37401 400 Chestnut Street Tower II 650CT22 A9: 03 October 16, 1985 BLRD-50-438/85-12 BLRD-50-439/85-12 U.S. Nuclear Regulatory Connaission Region II Attn:
Dr. J. Nelson Grace, Regional Administrator
-101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323
Dear Dr. Grace:
BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 -- FAILURE TO SEPARATE B-TRAIN CABLES FROM THE A-VALVE VAULT ROOM -BLRD-50-438/85-12 AND BLRD-50-439/85 SECOND INTERIN REPORT The subject deficiency was initially reported to NRC-OIE Inspector Al Ignatonis on March 20, 1985 in accordance with 10 CFR 50.55(e) as NCR BLN NEB 8504. This was followed by our first interim report dated.
April 16, 1985. Enclosed is our second interim report. We expect to submit our next report no late.c than six months before fuel load.
If you have any questions, please get in touch with R. H. Shell at FTS 858-2688.
Very truly yours, TENNESSEE VALLEY AUTHORITY
. W. Hufham, Manager Licensing and Risk Protection Enclosure cc (Enclosure):
Mr. James Taylor, Director Office of Inspection and Enforcement U.S. Nuclear Regulatory Connaission Washington, D.C.
20555 t
Records Center Institute of Nuclear Power Operations 1100 circle 75 Parkway, Suite.1500 Atlanta, Georgia 30339 t
8511120036 851016 PDR ADOCK 05000438 S
PDR An Equal Opportunity Employer '
wa7
p-a
- e ENCLOSURE i
BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 FAILURE TO SEPARATE B-TRAIN CABLES FROM THE A-VALVE VAULT RO.0M BLRD-50-438/85-12 AND BLRD-50-439/85-12 NCR BLN NEB 8504 10 CFR 50.55(e)
SECOND INTERIM REPORT Description of Deficiency A TVA internal design review has determined that a large number of train B cables pass through the A valve vault room but are not connected to any equipment within the room. This cable routing is in apparent violation of the requirements of design criteria N4-50-D741 (Physical Separation Outside i
the Primary Containment), Sections 5.1.2.e and 5.1.6.a.
This condition is attributed to design error and oversight of the requirements of design criteria N4-50-D741.
Interim Progress TVA has determined that the corrective action will be to remove and reroute the Class 1E conduits and associated Class 1E cables that are located in but do not terminate in the A valve vault room.
The original design of the routing of conduits for the auxiliary feedwater system was performed in 1977. TVA has since improved the design review process by issuing new procedures and has provided training and is continuing to provide training to improve the QA program, which will prevent recurrence. Therefore, additional action to prevent recurrence is not required.
Design corrective action for this deficiency is now underway which will define necessary construction changes. A final report on thb deficiency will be submitted upon completion but no later than six months before fuel loading.
E
.