ML20235V061
| ML20235V061 | |
| Person / Time | |
|---|---|
| Site: | Davis Besse  |
| Issue date: | 02/24/1989 |
| From: | Shelton D TOLEDO EDISON CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| 1-863, IEB-88-010, IEB-88-10, TAC-71286, NUDOCS 8903100022 | |
| Download: ML20235V061 (3) | |
Text
-_
1 TOLEDO
%mm EDISON m_ -,.,
DONALD C. SHELTON va m m. m a m Id *1 "" F3" Docket Number 50-346 License Number NPF-3 Serial Number 1-863 February 24, 1989 l
United States Nuc1 car Regulatory Commission Document Control Desk Vashington, D. C.
20555
Subject:
Response to NRC Bulletin Number 88-10, Nonconforming Molded-Case Circuit Breakers and request for Relief from Certain Actions Required (TAC Number 71286)
Centlement Nuclear Regulatory Commission (NRC) Bulletin Number 88-10, Item 1, requires licensees to identify all molded-case circuit breakers (CBs) purchased prior to August 1, 1988, that are being maintained as stored spares for safety-related (Class IE) applications and verify the traceability of the CBs.
Item 3 requires licensees to test the CBs that are not traceable to the CB manufacturer.
Toledo Edison (TE) has identified 84 molded-case CBs that vere being maintained as stored spares for use in Class IE equipment and determined 78 vere purchased directly from the Circuit Breaker Manufacturer (CBM).
Toledo Edison has not been able to verify traceability of the remaining six CBs, which are presently on hold pending outcome of this request. These CBs were purchased from Bailey Metering Company in 1976 as spare parts to the Bailey Metering Company equipment used in the Reactor Protection System. The original manufacturer of four of these breakers was Airpax Electronic. The remaining two vere manufactured by Heinmann Electric Company. The model numbers are as follovs:
- 1) Airpax Electronic Model UPL 11-2688-6
- 2) Airpax Electronic Model UPL 3-2688-24
- 3) Heinmann Electric Catalog Number 70-399-2 Bailey was able to determine that, at the time of the TE purchase order for the six breakers, it was purchasing parts directly from Airpax Electronic and Heinmann Electric Company. However, due to the time that has transpired since s903100022 890224
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DR ADOCK 0500 6
THE TOLEDO EDISON COMPANY EDISON PLAZA 300 MADISON AVENUE TOLEDO OHIO 43652 l
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' Docket Numb:r 50-346 l
License Number NPF-3 i
Serial Number 1-863 Page 2 TE's purchase (1976), Bailey can not provide documentation linking the Toledo Edison Purchase Order to either company. The Bailey part numbers for these six breakers are now obsolete.
Toledo Edison hereby requests relief from the Item 3 testing requirements of the Bulletin for these six breakers based on the following:
- 1) The six spare breakers vere purchased during the same time period as the originally installed breakers.
o
- 2) None of the originally installed breakers have failed in 13 years of operation.
- 3) As stated in the bulletin, the concerns do not apply to electrical equipment (safety-related and commercial grade) originally installed in plants.
- 4) The six spares were purchased from the same reputable vendor (Bailey Metering Company).
- 5) These six breakers can not be easily replaced.
- 6) The initial cost of the six spare breakers was in the tens of do}1ars.
hardl" vorth the time and effort for any company to refurbish them.
Toledo Edison believes that the above information provides the basis for concluding, with reasonable assurance, that the six spare CBs vill parform their intended safety function. Toledo Edison considers this a final response contingent upon approval of the requested exemption.
If you have any questions concerning this matter, please contact Mr. R. V.
Schrauder, Nuclear Licensing Manager, at (419) 249-2366.
Very trul yours, W
EBS/dlm cc:
P. M. Byron, DB-1 NRC Resident Inspector A. B. Davis, Regional Administrator, NRC Region III T. V. Vambach, DB-1 NRC Senior Project Manager I
1 I
< a 7.,,,1
' Dock 3t Nurbar 50-346
- '~ ' LicInsa Nulb:r NPF-3
. Serial Number 1-863 Enclosure Page 1 i
i
. Response to NRC Bulletin No. 88-10 For ej.
Davis-Besse Nuclear Power Station Unit No. 1 This letter is submitted in cciformance with Atomic Energy Act of 1954 Section 182a, in response to NRC Bulletin 88-10 (Log no. 1-1962) " Nonconforming-in Molded-Case Circuit Breakers".
By:
j D. C. Shelton, Vice President, Nuclear Svorn and subscribed before me this 24th day of February, 1989.
$1blLL.
, Gil Notary Public, State of Ohio LAURlE A. HINKLE Nobry Public, State of Ohio ky Commission Expires May 15,1991
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