ML19329E298
| ML19329E298 | |
| Person / Time | |
|---|---|
| Site: | Midland |
| Issue date: | 01/06/1978 |
| From: | Howell S CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| IEB-77-05, IEB-77-05A, IEB-77-5, NUDOCS 8006120603 | |
| Download: ML19329E298 (2) | |
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O Consumers Power CoNPGRY Stephen H. Howell vice w dent Generet offices: 1945 West Pernett Road, Jackson, Michigan 49201
- Aree Code 517 788 0453 January 6,1976 Mr James G Keppler, Regional Director Nuclear Regulatory Co.~. ission Region III 799 Roosevelt Rd Glen Ellyn, IL 60137 MIDLAUD PROJECT DOCKET N0 50-329, 50-330 IE BULLETIU T7-05,77-05A FILE: 0505 2 SERIAL: h6k5 IE Bulletin Ho 77-05 as supplemented by IE Bulletin 77-05A requested Consumers Power Company to conduct an investigation to determine the adequacy of all electrical connectors used in safety systens for the Midland Plants Units 1 and 2.
In response to this request, we are providing a complete response to l
IE Bulletin 77-05 and a partial response to IE Sulletin 77-05A covering the Balance of Plant Equipment. A response to IE Eulletin 77-05A for the 3333 equipment will be provided by January 13, 1973.
33SS Equipment Their are no electrical connectors of the type identified in IE Eulletiri 77-05 planned for use in the safety related systens inside containnent.
dalance of Plant Eauiptent Through our investi ation, ve have identified connectors that fall into this C
category for use in instrument circuits in the electrical penetration assen-blies and the engineered safety features actuation system (LSFAS).
The connectors used in the penetration asse=blies are fabricated by the penetration supplier, Bunker Rano Corporation, Amphenol 3A!:S Division.
"he connectors vill be qualified as a part of the penetration assembly through prototype testing which vill =eet the requirements of IEEE Std 317-1972/RG 1.63 dated 10/73. IEEE Std 323-1974/RG 1.69 dated 11/74, and IEEE Std 3hh-1975/
RG 1.100 Revision 1.
The test plan for environmental qualification is des-cribed in the Midland F3AR, Table 3.114, qualification Test 10.
Test results vill be provided by amendment to the l'idland FUAR in March 1973.
The connectors utilized in the ESFAS are of three types: Elco Series 6016, Continental Series 600 and Stanford Applied Engineering Series SEC. These connectors will be qualified for the intended service by the EGFAS supplier, Automation Industries Inc, Vitro Laboratories Division. The qualification d
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will be in accordance with IJ2.t; Std 323-197k/RG 1.69 dated 11/Th and IE Std 3kk-1975/RG 1.100 Revision 1.
The environmental qualification test plan is not presently available but is scheduled to be submitted as amendment to the Midland FSAR in May 1973.
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1 SHH/ine CC: Director, URC Office of Inspection & Inforcer.ent j
Director of duelear Reactor Regulation i
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