ML20210B861

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Application for Amend to License DPR-45,modifying Tech Spec Sections 4.2.3 & 2.6,to Describe Replacement & Mod to Noninterruptible Bus 1C.Fee Paid
ML20210B861
Person / Time
Site: La Crosse File:Dairyland Power Cooperative icon.png
Issue date: 02/04/1986
From: Taylor J
DAIRYLAND POWER COOPERATIVE
To: Zwolinski J
Office of Nuclear Reactor Regulation
Shared Package
ML20210B867 List:
References
LAC-11395, NUDOCS 8602100117
Download: ML20210B861 (3)


Text

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D DA/RYLAND h [k COOPERAT/VE

  • P.O. BOX 817
  • 2615 EAST AV SOUTH
  • LA CROSSE. WISCONSIN 54601 (608) 788 4000 February 4, 1986 In reply, please refer to LAC-Il395 DOCKET NO. 50-409 Mr. John A. Zwolinski, Director BWR Project Directorate #1 Division of BWR Licensing U.S. Nuclear Regulatory Commission Washington, DC 20555

SUBJECT:

DAIRYLAND POWER COOPERATIVE LA CROSSE BOILING WATER REACTOR (LACBWR)

PROVISIONAL OPERATING LICENSE DPR-45 APPLICATION FOR AMENDMENT TO LICENSE

REFERENCES:

(1) 10 CFR 50, Section 50.90.

(2) 10 CFR 170.12.

Gentlemen:

Dairyland Power Cooperative requests the substitution of the attached proposed Technical Specifications for the existing specifications. Therefore, in accordance with the provisions of Reference 1, an application to amend Provisional Operating License No. DPR-45 for the La Crosse Boiling Water Reactor is hereby filed with three (3) signed original applications, together with thirty-seven (37) copies. DPC requests the implementation date of this Technical Specification Amendment be effective upon completion of the installation of the Non-Interruptible Power System.

Currently, the operating requirements for the LACBWR electrical power systems are contained in Section 4.2.3. The design of the electrical power system is described in Section 2.6. This proposed change would modify Section 4.2.3'and Section 2.6, which would describe the replacement and modification to the lC Non-Interruptible Bus.

The analysis of no significant hazards determination by 10 CFR 50.92 is attached as Enclosure 1.

Attached as Enclosure 2 are the existing and proposed changes to the LACBWR Technical Specifications.

Attached as Enclosure 3 is a brief history of the original instrumentation and control 120 VAC bus and the modifications to date. The proposed change explains the benefits of the addition of a larger inverter and static transfer switch.

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0602100117 B60204 PDR ADOCK 05000409:

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Mrs J:hn A Zwolin2ki, Dirsctor February 4, 1986 BWR Project Directorate il LAC-11395

~

Since all of the items it. this license amendment. result-in "no" answers

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to the three questions in 10 CFR 50.92, a no'significant hazards determination is justified on this _ licensee amendment in the opinion of the licensee.

The license amendment has been reviewed by the appropriate review

~ committees.

A check for $150 accompanies this letter to cover the required application fee per Reference 2.

If there are any questions, please' contact us.

Sincerely, DAIRYLAND P0hER COOPERATIVE James W. Taylor General Manager JWT:RMB:sks Enc 1'osures cc: J.G._Keppler, Region-III NRC Resident Inspector

' John Stang,- LACBWR Project Manager Mr. Clarence Riederer, Chief Engineer Wisconsin Public Service Commission P. O. Box 7854

. Madison, WI '53707 STATE OF WISCONSIN )

)

COUNTY OF LA CROSSE-)

Personally came before me this day of j'~ , 1986,

.the above named, James Taylor, to me known to be the person who executed the-foregoing instrument and acknowledged the same.

. /O Notary Public, a Crosse County Wisconsin

~

My commission expires February 21, 1988.

~

WPl.4.7

Enclosure #1 Proposed Revisions See attached Existing and Proposed Sheets:

Page 13 - Delete "which supplied power to reactor water level channel 3 through Static Inverter IC."

Page 13a -Delete "The Generator Plant 125 volt DC Bus shall normally supply power to a Generator Plant 125 volt DC distribution panel which supplies power to reactor water level channel 3 through Static Inverter IC".

Add - The Generator Plant 125 Volt DC Bus shall normally supply power to a Generator Plant 125 Volt DC distribution panel.which supplies power to essential reactor instrumentation and control circuits connected to 120 Volt AC Non-Interruptible Bus IC.

Add - The static switch of the Static Inverter IC shall be capable of supplying power from Static Inverter IC or its reserve 120 Volt AC power source. In case of Static Inverter IC trouble, the static switch shall automatically transfer from the output of Static Inverter IC to the reserve transformer which is supplied from Turbine Building Motor Control Center IA.

Page 32m - Delete - 4.2.3.2.1 f which reads "120-Volt A.C. I KVA Static Inverter from Generator Plant 125-Volt D.C. Bus."

Add - 120-Volt A.C. Non-Interruptible Bus IC.

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