ML18043A254

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Requests Addl Info Re ESF Switchover from Injection to Recirculation Mode,Isolation of Reactor Safety Protec Sys from non-safety Sys & Engr Safety Features,(Esf) Sys Logic & Design
ML18043A254
Person / Time
Site: Big Rock Point, Palisades  File:Consumers Energy icon.png
Issue date: 10/26/1978
From: Ziemann D
Office of Nuclear Reactor Regulation
To: Bixel D
CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
References
TASK-06-07.B, TASK-07-01.A, TASK-07-02, TASK-6-7.B, TASK-7-1.A, TASK-7-2, TASK-RR NUDOCS 7811130047
Download: ML18043A254 (4)


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-Docket Nos._. 50-15 5 C_S0-25[)

Consumers Power Company ATTN:

Mr. David Bixel

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~;&,~rnUTION:

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Loc*a1 PDR ORB #2 Readinq VStello BG rimes

- DLZi emann SJNowi cki RDSilver HSmith OELD

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DEisenhut Nuclear Licensing Administrator 212 He st n; chi :ian /\\venue-TERA JRBuchanan ACRS (16)

DMcDonald

. Jackson, Michigan 49201 FAshe Gentlemen:

Rased on our initial review related to SEP_Jopics VI-7.Pi., VII-1.A. and VII-2., we request that you provide the -information-requested in the encl osun"? or detailed references to previously docketed information that is still current.

We would appreciate rece-iving this information as soon as possible.

Enclosure:

. Request for J\\dditiona1 Information cc w/enc1osure:

See next page Sincerely, Dennis L. Ziemann, thief Operating Reactors Branch #2 Division of Operating Reactors :

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Consumers Power Company

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M.' I. Miller, Esquire Isham, Lincoln & Beale Suite 4200 One First National Plaza Chicago, Illinois 60670 Judd L~ Bacon, Esquire Consumers Power Compa~y 212 West Michigan Avenue Jackson, Michigan 49201

  • Paul A. Perry, Secretary Consumers Power Company 212 West Michigan Avenue J~ckson, Michigan 49201 Myron M. Cherry, Esquire

. Suite 4501 One IBM Plaza Chicago, Illinois 50611 Kalamazoo Public Library 315 South Rose Street Kalamazoo, Michigan 49006 KM C Inc.

ATTN:

Mr. Jack McEwen 1747 Pennsylvania A~enue, N.

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Suite l 050 Wlshington, D. C.

20006 Hunton*& Williams George C. Freeman, Jr., Esquire P. 0. Box 1535 Rictillond, Virginia 23212 Peter W. Steketee, Esquire 505 Peoples Building Grand Rapids, Michigan *49503 Charlevoix Public Library 107 Clinton Street Charlevoix, Michigan 49720

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ENCLOSURE REQUEST FOR ADDITIONAL INFORMATION Please submit the following infonnation:

1.

To ic VI-7.B ESF Switchover From Injection to Recirculation Mode Automatic ECCS Reali nment

  • Schematics for the automatic controllers used (if any) to perfonn the changeover.
2.

Topic VII-1.A. Isolation of Reactor Protection System From Non-Safety Systems, Including Qualification of Isolation Devices Drawings and schematics which show:

A.

How the Reactor Protection System gets its input signals.

B.

How the other system inputs are isolated from the Reactor Protection System inputs.

3. Topic VII-2 Engineered Safety Features (ESF) System Logic and Design A list of the diesel generator loads which are to be supplied under various conditions, including:

A.

Normal operation, including nonnal shutdown B.

LOCA C.

Other emergency situations Details of automatic load sequencing system or equipment (if any).

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.Mr~ Jack E. Gilleland_

Assistant Manager of Pov1er 830 Power Building U. S. T. V. A.

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Chat:tenooga, Ten*nessee

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Dear Mr. Gilleland:

. OCT 2 4 1978

  • Reference is made w the telephone discussion between Mr. Victor Stephenson;'

Power Security Officer,_ and Mr.~ Charles _E.

Gaski.n~. the review team l_eade~,:

on October 18; _1978. : }le wouldJike-to perform cf vital area analysis-of the.

Brown 1 s.Ferry Muclem.; Pi ant during. the week of Noven1ber 12, 19-78. -Mr-. Ed\\~ard

  • _Claiborne and Mr *. John Rand from the Los Alamos Scientific laboratory, Los Alamos, New Mexico, are assisting_the-uuclear. Regulatory Commission in the 10 CFR 73.55 security plan revie't1s.

They will be at your site to obtain infonnution needed in our. review of the vital areas of _the Brown's Ferry Plant *. Your cooperation in admitting Mr. Claiborne* and Mr. Rand to the Brown's Ferry site and in ass.isting them by providing the necessary input_

- i nfor-mation (knowledge ab le personnel, drawings, etc.) for our analysis wi 11 greatly facilitate our review.

Upon.comple~ion of th~ analysis we will -be:.

pleased to_ discuss the results *1:1i th TVA.

Thank you* for your assistance.

.--JH-SfRlBU°'.iON~

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Sincerely, Originaf signed by.

. Rn"'"':t '-'. Cfr.rl( * -

Robert A.

Clark~ Chief Reactor Safeguards Licensing Branch Division of Operating Reactors

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