ML20246E706
| ML20246E706 | |
| Person / Time | |
|---|---|
| Site: | Limerick  |
| Issue date: | 08/22/1989 |
| From: | Hunger G PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| IEB-88-010, IEB-88-10, NRCB-88-10, NUDOCS 8908290266 | |
| Download: ML20246E706 (2) | |
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PHILADELPHIA ELECTRIC-COMP NY' g
NUCLEAR GROUP HEADQUARTERS h
955-65 CHESTERBROOK BtVD.'
L WAYNE, PA 19087-5691' pt s) e4o-sooo August 22,-1989-Docket Nos. 50-352 50-353' License Nos. NPF-39 NPF-84 O.S. Nuclear Regulatory Commission Attn: Document' Control Desk j
Washington, DC 20555
SUBJECT:
.. Limerick Generating Station, Units 1 and 2 Response to NRC Bulletin 88-10, " Nonconforming Molded-Case Circuit Breakers" - Additional Information
REFERENCE:
Letter. dated April 3, 1989 from J. W. Gallagher (PECo) to NRC
Dear-Sir:
The subject NRC Bulletin requested the licensees.take actions to provide' reasonable assurance that molded-case circuit breakers (MCCBs), including MCCDs used with motor controllers, purchased'for.use in safety-related applications withcut verifiable traceability to the circuit breaker manufacturer (CBM), are able to
- perform their safety functions.
The-referenced letter provided our response to the reporting requirements'of Bulletin 88-10.
In that response we stated that we had not determined the traceability of 140 MCCBS.
We 1
have since determined the traceability of all but three of these
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MCCBa.
These three MCCBs are described below.
2 1.
CBM-ETA, Supplier - Simmons Precision, 5 AMP, Single pole, Model No. 45-700-5.0-DD l
8908290266 89082s^s2 p' R 9
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I ;\\ Docum: nt - Control Desk August 22,-1989 Page 2
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CBM - Heinnmann, Supplier - Simmons Precision, 2 AMP, single pole, Model'No. AM1-A9-A-2.0-33 I
3.
CBM - Heinnmann, Supplier - Simmons Precision, IN AMP, single pole, Model No. AM1-A3-A-10.0-3.
These three non-traceable MCCBs have not been tested and are being' retained in a " BOLD" status as advised by the Nuclear Management and Resources Council (NUMARC) letter of March-9, 1989.
Should-you have any questions or require Additional
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information,'please do not hesitate to contact us.
Very truly.yours, G. A.
Hunger, Jr.
Director Licensing Section Nuclear Support Division cc:
W.
T. Russell, Administrator, Region I, USNRC L
T. J.. Kenny, USNRC Senior Resident Inspector, LGS s
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