ML19329E448
| ML19329E448 | |
| Person / Time | |
|---|---|
| Site: | Midland |
| Issue date: | 11/16/1977 |
| From: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Howell S CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| References | |
| NUDOCS 8006160252 | |
| Download: ML19329E448 (1) | |
Text
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tENTRAL FILE" NOV 161977 e
Docket No. 50-329 Docket No. 50-330 Consucers Power Cowpany ATTN:
Mr. Stephen M. Howell Vice President 1945 West Parnall Road Jackson, MI 49201 l
l Centlemen:
Enclosed is a supplement (IE Bulletin No.77-05A) to IE Bulletin No. 77-05 which requires action by you with regard to your power I
reactor facility with an operating license or a construction
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permit.
Should you have questions regarding this Bulletin or the actions required of you, please contact this office.
Sincerely, i
t' Jarns C. Keppler Director l
Enclosures:
1.
IE List of Balletina Issued in 1977 THIS DOCUMENT CONTAINS i
ce w/encis:
POOR QUAUTY PAGES Central Files Reproduction Unit NRC 20b j
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Local PDR
-i NSIC TIC Ronald Callen Michigan Public e-ervice Coinmisaion Dr Fayne E. North Myron N. Cherry, Chicago b
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11/16/7' NRC FOR.M 318 (9 76) NRCM 0240 W u. e, sovsawuswr en,wnmo ornces tore - eme-eaa
m November 16, 1977 IE Bu13etin 77-05A ELECTRICAL C0h3ECTOR ASSDiBLIES Descrip'. ion of Circumstances:
This Bulletin is a supplement to IE Bulletin 77-05, issued November 8, 1977, and the two documents should be considered together.
Bulletin 77 -05 described the failure, under test conditions, of a general type of eloctrical connector. The tests were intended to simulate post-IDCA ond'tfons, therefore the action requested in the Bulletin focussed on the qualification of electrical connectors for use inside containment.
Since issuance of Bulletin 77-05, our attention has been called to circumstances which indicate that the scope of the action requested should be expanded and therefore the response to Bu12etin 77-05 should reflect the expanded scopa.
Electrical connectors should be qualified to perform their intended function after having been subjected to accidant conditions if they are contained in a systet whose function is to mitigate that accident.
The location of the connectors that must be qualified is not limited to those inside containment.
Action To Be Taken By Licensees and Permit Eolders:
1.
Actions requested by Bulletin 77-05 should be expanded to include all connectors in safety systems which are required to function to mitigate an accident where the accident itself could adversely affect the ability of the system to perform its safety function.
The examination is not to be limited to only LOCA's nor to areas only within containment.
2.
1tesponses should be provided within 30 or 60 days, as appropriate, of the date of this supplement.
Approved by GAO, B180225 (R0072); clearance expires 7-31-80.
Approval was given under a blanket clearance specifically for identified generic problems.
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TE Bu11etsn 77-05A Novecher '16,1977 LISTING OF IE BULLETINS ISSUED IN 1977 Bulletin Subject Date Issued Issued To No.
77-05 Electrical Connector 11/8/77 All P'3R ?wer Assemblies Reactor Taci11 ties with an Operating License (OL) er Construction Fer1mit (CP) 77-04 Calculational Error 11/4/77 All PWR Fover Affecting the Design Reactor Tacilities Ferformance of a System with an Operating for Contro111og pH of License (OL) or Containe.ent Sum; Water Construction Following a LOCA Permit (CP) 77-03 On-Line Testing of 9/12/77 All W Power the W Solid State Reactor Tacilities Protection System with an Operating License (OL) or Construction Fernit (CP) 77-02 Yotential Tailure 9/12/77 All Holders of Machanism in Cartain Operating Licenses W AR Relays with (OL) or Construc-Relays with Latch tion Fernits (CP)
A t tachants 77-01 Pneumatic Time 4/29/77 All Holders of Delay Set Point Operating Licenses Drift (OL) or Construc-tion Permits (CP)