ML20062C659

Requests Addl Info on Fse Switchover from Injection to Recirculation Mode,Isolation of Reactor Protec Sys from non- Safety Sys,Esf Sys Logic & Design,Specific Drawings of Elec Sys, & Complete Plant Elec Drawing Indices

ML20062C659
Person / Time
Site:	La Crosse File:Dairyland Power Cooperative icon.png
Issue date:	10/26/1978
From:	Ziemann D Office of Nuclear Reactor Regulation
To:	Madgett J DAIRYLAND POWER COOPERATIVE
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 7811100162
Download: ML20062C659 (3)

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S UNITED STATES y"

NUCLEAR REGULATORY COMMISSION

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.8 October 26, 1978 w

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Occket No. 50-409

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DairylanTPower Cooperative ATTN:

Mr. John P. Madgett General Manager 2615 East Avenue, South La Crosse, Wisconsin 54601 Gentlemen:

We have received drawings in response to our June 26, 1978 letter, which will be used in our review of several SEP topics.

The schematic diagrams for control of all automatic and manual electrical load transfers between redundant safety buses, complete plant electrical drawing indices, drawings showing battery and charger alams and indication, one-line diagrams for 480 voit buses, and schematic diagrams for all AC and DC MOVs were not included in the drawing set submitted for the La Crosse Boiling Water Reac to r.

We request that you submit copies of these drawings in accordance with the instructions in our June 26, 1978 letter.

Based on our initial review related to SEP Topics VI-7.B., VII-1.A. and VII-2., we request that you provide the infomation requested in the enclosure or detailed references to previously docketed infomation that is still current.

We would appreciate receiving this infomation as soon as possible.

Sincerely, y

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Dennis L. Ziemann,N.:.> +

' Chief Operating Reactor's Branch =2 Division of Operating Reactors

Enclosure:

Request for Additional Infomation cc w/ enclosure:

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See next page

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Dairyland Power Cooperative October 26, 1978 cc w/ enclosure:

Fritz Schubert, Esquire Staff Attorney Dairyland Power Cooperative 2615 East Avenue, South La Crosse, Wisconsin 54601

0. S. Heistand, Jr., Esquire Morgan, Lewis & Bockius 1800 M Street, N. W.

Washington, D. C.

20036 Mr. R. E. Shimshak La Crosse Boiling Water Reactor Dairyland Power Cooperative P. O. Box 135 Genoa, Wisconsin 54632 La Crosse Public Library 800 Main Street La Crosse, Wisconsin 54601 Coulee Region Energy Coalition ATTN: George R. Nygaard P. O. Box 1583 La Crosse, Wisconsin 54601 i

K M C Inc.

ATTN: Mr. Jack McEwen 1747 Pennsylvania Avenue, N.W.

Suite 1050 Washington, D. C.

20006 9

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ENCLOSURE REQUEST FOR ADDITIONAL INFORMATION Please submit the following information:

1.

Topic VI-7.B TAutomatic ECCS Realignnent)ESF Switchover Fron Injection to Recirculatio O

Schenatics for the automatic controllers used (if any) to perform the changeover.

2.

Topic VII-1.A Systems, including Qualification of Isolation DevicesIsolation of R 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 Systen inputs.

3.

Topic VII-2 Enoineered Safety Features (EST) Systen Logic and Desicn A list of the diesel generator loads which are to be supplied under various conditions, inclucing:

A.

Hornal operation, including normal shutdown B.

LOCA C.

Other energency situations Details of autonatic load sequencing systen or equipment (if any).

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