ML20112F703
| ML20112F703 | |
| Person / Time | |
|---|---|
| Site: | Bellefonte  |
| Issue date: | 12/17/1984 |
| From: | Hufham J TENNESSEE VALLEY AUTHORITY |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| REF-PT21-85-054-000 PT21-85-054-000, PT21-85-54, NUDOCS 8501160002 | |
| Download: ML20112F703 (2) | |
Text
TENNESSEE VALLEY AUTHORITY N
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DOhg pg, g39h 3 2 U.S. Nuclear Regulatory Commission Region II Attn:
Mr. James P. O'Reilly, Regional Administrator 101 Marietta Street, NW, Suite 2900 Atlanta, Oecrgia 30323
Dear Mr. O'Reilly:
BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 - SEISMIC QUALIFICATION OF B&W EQUIPMENT IN TVA PANELS - NCR BLN BLP 8011 - ELEVENTH INTERIM REPORT The subject deficiency was initially reported to NRC-0IE Inspector R. W. Wright on November 24, 1980 in accordance with 10 CFR 50.55(e).
This was followed by our interim reports dated December 23,1980 and April 23 and October 28, 1981, February 18, May 18, July 16, and September 24, 1982, February 7 and September 7,1983, and June 28, 1984.
Enclosed is our eleventh interim report. We expect to submit our next report by July 8,1985.
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
-lW g(J. W. Hufham, Manager Licensing and Regulations Enclosure oo (Enclosure):
Mr. Richard C. DeYoung, Director Office of Inspection and Enforcement U.S. Nuolear Regulatory Commission Washington, D.C.
20555 Mr. H. B. Barkley 205 Plant Project Services P.O. Box 10935 Lynchburg, Virginia 24506-0935 Records Center Institute of Nuclear Power Operations 1100 Cirolo 7.5 Parkway, Suite 1500 Atlanta, oeorgia 30339 8501160002 84jgjy WFTPM;; r;rgy DR ADOCK 05000430 g
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An Equal Opportumty Employer
ENCLOSURE BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 SEISMIC QUALIFICATION OF B&W EQUIPMENT IN TVA PANELS NCR BLN BLP 8011 10 CFR 50.55(e)
ELEVENTH "!TERIM REPORT Description of Deficiency A number of Babcock and Wilcox (B&W) supplied instrumenta are intended for installation in TVA's free standing, open, local instrument panels.
Because of imprecise specifications in a TVA procurement document, the instrumentation supplied by B&W has not been seismically qualified to a response spectra which is compatible with the response spectra for TVA local instrument panels.
The respont ibility for thu deficiency is TVA's.
A list of the instruments in question follows:
Type of Device Vendor Vendor ID No.
Differential pressure transmitter Bailey Meter Co.
Type N1BQ86221 Differential pressure transmitter Bailey Meter Co.
Type N2BQ74221 Differential pressure transmitter Bailey Meter Co.
Typer N2BQ76221 Differential pressure transmitter Bailey Meter Co.
Type N2BQ85221 Differential pressure transmitter Bailey Meter Co.
Type N2BQ86221 Prosaure transmitter Bailey Meter Co.
Type N2KS69221 Indicator meter Bailey Meter Co.
ES-342 Operator station Bailey Meter Co.
TT-10
_ Interim Progress Those instruments no longer on the lists supplied in our previous mports have been moved to a location such that each instrument's maponse spectra is now compatible with the response spectra for the local instrument panel.
The equipment on this list was seismically tested to the higher "g" values of the correct response spectra in order to show that the equipment is qualified and could be used "as is." The seismic testing was performed by B&W subvendor, Farwell and Hendricks (FH). B&W has provided FH's seismic test results to TVA for myiew. The results indicate that all equipment is qualified except the N2BQ74221 and N2BQ86221 transmitters, and the TT-10 operator station. B&W has requested TVA's course of action for these three devices, ans e are currently evaluating this mquest. It appears that a retest of the transmitters will mault in seismic qualification, since failure of the originally tested transmitters can be attributed to water damage incurred while the transmitters were installed at the site. The TT-10 failure, however, appears to be a functional failum and it is not clear that a retest will be of any benefit. We will discuss this further with B&W. TVA will provide additional information in our next report.
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