ML20083G691
| ML20083G691 | |
| Person / Time | |
|---|---|
| Site: | Bellefonte  |
| Issue date: | 12/23/1983 |
| From: | Mills L TENNESSEE VALLEY AUTHORITY |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| 10CFR-050.55E, 10CFR-50.55E, NUDOCS 8401040312 | |
| Download: ML20083G691 (2) | |
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.e TENNESSEE VALLEY AUTHORITY
' CHATTANOOGA. TENNESSEE 374ot 400 Chestnut Street Tower II December 23,1983 D OfC 29 4g.
BLRD-50-438/83-40 BLRD-50-439/83-34 U.S. Nuclear Regulatory Commission Region II Attn:
Mr. James P. O'Reilly, Regional Administrator 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30303
Dear Mr. O'Reilly:
BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 - FIELD CABLES NOT TERMINATED IN PENETRATIONS PROPERLY - BLRD-50-438/83-40, BLPD-50-439/83 SECOND INTERIM REPORT The subject deficiency was initially reported to NPC-4f2 Inspector Linda Watson on June 14, 1983 in accordance with 10 Crd 50,55(e) as NCRs 2383, 2384, 2385, and 2395. This was followed by our interici report submitted on July 14, 1983 Enclosed is our second interin faports We expect to submit our next report by August 1, 1984.
If you have any questions, please get in touch with R. H. Shell at FTS 858-2688.
Very truly yours, TENNESSEE VALLEY AUTHORITY h
t L. M. Mills, Manager Nuclear Licensing Enclosure cc:
Mr. Richard C. DeYo'ing, Director (Enclosure)
Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, D.C.
20555 Records Center (Enclosure)
Institute of Nuclear Power Operations 1100 Circle 75 Parkway, Suite 1500 Atlanta, Georgia 30339 YO h
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1983-TVA SOTH ANNIVERSARY g {\\
An Equal Opportunity Employer
eo ENCLOSURE BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 1
FIELD CABLES NOT TERMINATED IN PENETRATIONS PROPERLY BLRD-50-438/80-40, BLRD-50-439/83-34 NCRs 2383, 2384, 2385, AND 2395 10 CFR 50.55(e)
SECOND INTERIM REPORT Description of Deficiency NCRs 2383, 2384, and 2385 identify that in several electrical cable penetration terminations the correct application of Raychem tubing, end caps, or cable breakouts was not adhered to per TVA drawings.
This has resulted in incorrect lengths of Raychem tubing on cable splices, insufficient distance between Raychem 2-and 3-point cable breakouts, and no end caps on spare conductors. NCR 2395 was issued to identify the generic implication of the three previously mentioned NCRs and a possible generic deficiency in the electrical quality control (EQC) training and inspection program. The apparent cause of these deficiencies is a lack of proper interpretation of TVA drawings by TVA Construction (CONST) craft and EQC inspectors.
Interim Progress NCR 2383 - TVA hat determined that the subject applications of Raychem tubing identified by this NCR are adequate, and the disposition of the deficiency is to "use-as-is."
TVA electrical standard drawing SD-E12.5.6 is being revised to provide clarification of the minimum acceptable seal length for Raychem tubing, after shrinking. Training in the proper installation procedures for Raychem heat shrinkable sleeves and shims, for all affected EQC, craft, and engineering personnel, has been accomplished.
NCRs 2384 and 2385 - TVA is in the process of issuing a work release to reinspect and rework as necessary all of the in-line cable terminations, requiring Raychem breakout tubing, which were previously installed per the TVA SFA0216-NI series drawings. This action will also be taken for the application of heat shrinkable end caps on spare conductors of reactor building electrical penetration modules. All l
affected craft and EQC personnel have received training on electrical l
penetration termination procedures.
NCR 2395 - All EQC personnel have been retrained to the requirements of BNP-QCP-3.4 R6, " Electrical cables and jumpers installation l
(pulling) and preparation (terminating)," and to the requirements of j
the TVA 5RA0216-NI series drawings. Also, all EQC personnel have been l
trained to the requirements of 10 CFR 50 Appendix B, with an emphasis on the role of the quslity organization in construction activity.
l When activity in the area of penetration terminations, which is not being conducted at this time, is resumed for a sufficient length of time, the following actions will also be taken:
1.
A documented audit program will be implemented for random surveillance of penetration terminations, until such time that a trend of acceptable installations can be documented.
2.
Actions will be taken to ensure that EQC inspectors receive adequate field training, under the supervision of a gnalified inspector, in the area of penetration terminations.
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