ML17285A677

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Advises That Util Review & Approval of Application for Amend to License NPF-21 Re Overcurrent Protective Relay Devices Accomplished.Fuse Size Changed from 100 to 90 Ampere to Provide Addl Margin in Containment Penetration Protection
ML17285A677
Person / Time
Site: Columbia Energy Northwest icon.png
Issue date: 08/14/1989
From: Bouchey G
WASHINGTON PUBLIC POWER SUPPLY SYSTEM
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML17285A675 List:
References
GO2-89-137, TAC-74196, NUDOCS 8908180334
Download: ML17285A677 (3)


Text

WASHINGTON PUBLIC POWER SUPPLY SYSTEM P.O. Box 968 ~ 3000 George Washington Way ~ Richland, Washington 99352 August 14, 1989 G02-89-137 Docket No. 50-397 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Mail Station Pl-137 Washington, D.C. 20555 Gentlemen:

Subject:

NUCLEAR PLANT NO. 2 LICENSE NO. NPF-21, RE/VEST FOR AMENDMENT TO TECHNICAL SPECIFICATION TABLE 3.8.4.2"1 PRIMARY CONTAINMENT PENETRATION CONDUCTOR OVERCURRENT PROTECTIVE RELAY DEVICES CONFIRMATION OF CNSRB APPROVAL

Reference:

Letter, G02-89-136, GD Bouchey to NRC, same subject, dated August 13, 1989 In the reference we stated that Supply System Corporate Nuclear Safety Review Board (CNSRB) review and approval of the subject Technical Specification change request would be confirmed by August 14, 1989.

This letter is to inform you that this CNSRB review and approval has been accom-plished.

The reference stated that a 100 Ampere fuse would be used to replace MCC BB-A.

After additional Engineering review, the fuse size has been changed from 100 to 90 Ampere. This is to provide additional margin in the protection of the containment penetration. The 90 Ampere fuse will still provide the required coordination with the downstream MCC feeder fuses and has been verified to be sufficiently large to carry all the required loads on the MCC.

Very truly yours, G. D. Bouchey, Di ctor Licensing 8 Assurance AGH/bk cc: J. B. Martin - NRC RV N. S. Reynolds - BCPSR R. B. Samworth - NRC D. L. Williams - BPA/399 C. Eschels - EFSEC NRC Site Inspector - 901A 8908180334 8908i4 PDR ADOCK 05000397 P PDC

STATE OF WASHINGTON)

Subject:

REt)UEST FOR AMENDMENT TO

) TECHNICAL SPECIFICATION TABLE COUNTY OF BENTON ) 3.8.4.2-1 PRIMARY CONTAINMENT PENETRATION CONDUCTOR OVERCURRENT PROTECTIVE RELAY DEVICES CONFIRMATION OF CNSRB APPROVAL I, G ~ D. Bouchey, being duly sworn, subscribe to and say that I am the Director, Licensing 8 Assurance, for the WASHINGTON PUBLIC POWER SUPPLY SYSTEM, the applicant herein; that I have full authority to execute this oath; that I have reviewed the foregoing; and that to the best of my knowledge, information, and belief the statements made in it are true.

DATE 1989 Licensing 8 Assurance On this day personally appeared before me G. D. Bouchey, to me known to be the individual who executed the foregoing instrument, and acknowledged that he signed the same as his free act and deed for the uses and purposes herein mentioned.

GIVEN under my hand and seal this ~+ day of 1989.

Notary Pu ic in and or the STATE OF WASHINGTON Residing at My commission expires 7 91

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