ML20040G587
| ML20040G587 | |
| Person / Time | |
|---|---|
| Site: | Bellefonte  |
| Issue date: | 01/29/1982 |
| 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 8202160275 | |
| Download: ML20040G587 (2) | |
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x TENNESSEE # ALLEY AUTHORITY
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- cu TTANOOGA. TENNESSEE 37401 400 Chestnut Street Tower II g3 4 S *.J n ary 29, 1982 BLRD-50-438/82-07 BLRD-50-439/82-07 x $d ?,
SY Mr. James P. O'Reilly, Director C
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Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Region II - Suite 3100 i ?1932;_
101 Marietta Street Atlanta, Georgia 30303 t.
Dear Mr. O'Reilly:
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g lu i j s J BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 - ATTACHMENT OF PIPE SUPPORTS TO 6-INCH STRIP PLATES - BLRD-50-438/82-07, BLRD-50-439/82 FIRST INTERIM REPORT The subject deficiency was initially reported to NRC-0IE Inspector R. V. Crlenjak on December 31, 1981 in accordance with 10 CFR 50.55(e) as NCR BLN BLP 8133 Enclosed is our first interim report. We expect to submit our next report by April 21, 1982.
If you have any questions concerning this matter, please get in touch with R. H. Shell at FTS 858-2688.
Very truly yours, TENNESSEE VALLEY AUTHORITY L. M. Mills, Manager Nuclear Regulation and Safety Enclosure cc:
Mr. Richard C. DeYoung, Director (Enclosure)
Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, DC 20555 OFFICI AL COPVh b A7 8202160275 820129 PDR ADOCK 05000438 An Equal Opportunity Employer f
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ENCLOSURE BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 ATTACHMENT OF PIPE SUPPORTS TO 6-INCH STRIP PLATES BLRD-50-438/82-07, BLRD-50-439/82-07 10 CFR 50.55(e)
FIRST INTERIM REPORT Description of Deficiency Six-inch-wide embedded strip plates with a single row of 3/4-inch-diumeter Nelson studs were provided in the Reactor Building for the attachment of instrumentation and conduit supports. However, because design drawings did not restrict their use, some ITT Grinnell pipe supports and TVA typical seismic pipe supports were installed attached to the strip plates. Because of the physical configuration of the embedments, the potential for exceraive stress and deflection exists.
Interim Progress TVA is performing a walkdown in the Reactor Building to determine which supports are attached to the subject plates. Once this has been completed, TVA will determine the ability of the embedments to resist the applied loads within the allowable deflection requirements.
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