ML20205A499
| ML20205A499 | |
| Person / Time | |
|---|---|
| Site: | Bellefonte  |
| Issue date: | 04/15/1985 |
| From: | Hufham J TENNESSEE VALLEY AUTHORITY |
| To: | Grace J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| NUDOCS 8504250530 | |
| Download: ML20205A499 (2) | |
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. TENNESSEE VALLEY AUTHORITY CHATTANOOGA. TENNESSEE 374o1 400 Chestnut Street Tower II
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BLRD-50-438/84-09 BLRD-50-439/84 U.S. Nuclear Regulatory Commission Region II Attn:
Dr.~ J. Nelson Grace, Regional Administrator 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30303
Dear Dr. Grace:
BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 - INSULATION WEIGHTS ASSUMED IN ANALYSES FOR VALVES AND PIPE FITTINGS - BLRD-50-438/84-09, BLRD-50-439/84 SECOND INTERIM REPORT The subject deficiency was initially reported to NRC-0IE Inspector P. E. Fredrickson on January 23, 1984 in accordance with 10 CFR 50.55(e) as NCR BLN CEB 8401. Our first interim report was submitted on February 16, 1984. Enclosed is our second interim report. We expect to submit our next report on or about March 14, 1986.
If you have any questions, please get in touch with R. H. Shell at FTS 858-2688.
Very truly yours, TENNESSEE VALLEY AUTHORITY J. W. Hufham, Manager Licensing and Regulations l.
Enclosure oc:
Mr. James Taylor, Director (Enclosure)
Office of Inspection and Enforcement U.S. Nuclear Regulatory' Commission i
Washington, D.C.
20555 Records Center (Enclosure)
Institute of Nuclear Power Operations 1100 Circle 75 Parkway, Suite 1500 c
Atlanta, Georgia 30339 8504250530 850415 DR ADOCK 0500 8
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y4 An Equal Opportunity Employer
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ENCLOSURE BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 INSULATION WEIGHTS ASSUMED IN ANALYSES FOR VALVES AND PIPE FITTINGS BLRD-50-438/84-09, BLRD-50-439/84-08 NCR BLN CEB 8401 10 CFR 50.55(e)
SECOND INTERIM REPORT Description of Deficiency TVA's Civil Engineering Branch (CEB) Engineering Procedure (EP) 21.12, revision 2, Table 5.4-5, and Bellefonte Engineering Project (BLEP) drawing 3BT0001-00-01 list valve and pipe fitting adjustment factors for insulation weight calculations. The factor is multiplied by the weight per foot of pipe insulation to yield an insulation weight value per valve or fitting. The analysts used these factors and applied the results as a weight per foot in the analyses. This he.s created some unconservative results.
Interim Progress TVA is still evaluating the subject deficiency.
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