ML17285B176

Application for Amend to License NPF-21,revising Tech Spec 3.8.2.1 to Reflect Plan to Add Addl Load to Battery During Spring 1990 Refueling Outage

ML17285B176
Person / Time
Site:	Columbia
Issue date:	04/05/1990
From:	Sorensen G WASHINGTON PUBLIC POWER SUPPLY SYSTEM
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML17285B177	List: ML17285B176 ML17285B178
References
GO2-90-070, GO2-90-70, NUDOCS 9004200232
Download: ML17285B176 (7)

Text

ACCELERATED DISTjGBVTION DEMONSTFWTION SYSTEM

~ ro REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)

ACCESSION NBR:9004200232 DOC.DATE: 90/04/05 NOTARIZED: YES DOCKET FACIL:50-397 WPPSS Nuclear Project, Unit 2, Washington Public Powe 05000397 AUTH. NAME AUTHOR AFFILIATION SORENSEN,G.C. Washington Public Power Supply System RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)

SUBJECT:

Application for amend to License NPF-21,amending Tech Spec TITLE:

NOTES OR 3.8.2.1 DC sources.

DISTRIBUTION CODE: AOOID COPIES RECEIVED:LTR Submittal: General Distribution l lENCL SIZE: + I RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL PD5 LA. 1 1 PD5 PD 1 1 SAMWORTH,R 5 5 INTERNAL: ACRS 6 6 NRR/DET/ECMB 9H 1 1 NRR/DOEA/OTSB11 1 1 NRR/DST SE2 1 1 NRR/DST/SELB SD 1 1 NRR/DST/SICB 7E 1 1 NRR/DST/SRXB SE OC LEMB EG FI 01 1

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1 0

1 NUDOCS-ABSTRACT OGC/HDS2 RES/DSIR/EIB 1,0 1

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.EXTERNAL: LPDR 1 . 1 NRC PDR 1 1 NSIC 1 1 NOTE TO ALL "RIDS" +CIPIENTS:

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PLEASE HELP US TO REDUCE WASTE) CONTACT THE.DOCUMENT CONTROL DESK, ROOM Pl-37 (EXT. 20079) TO ELIMINATEYOUR NAME FROM DISIRIBUTION LISIS FOR DOCUMENTS YOU DON'T NEEDl TOTAL NUMBER OF COPIES REQUIRED: LTTR 27 ENCL 25

h WASHINGTON PUBLIC POWER SUPPLY SYSTEM P.O. Box 968 ~ 3000 George Washington Way ~ Richland, Washington 99352 April 5, 1990 G02-90-070 Docket No. 50-397 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D.C. 20555 Gentlemen:

Subject:

NUCLEAR PLANT NO. 2, OPERATING LICENSE NPF-21 REQUEST FOR AMENDMENT TO TECHNICAL SPECIFICATION 3.8.2.1 DC SOURCES% BATTERY LOAD PROFILE-REVISED

Reference:

Letter, G02-90-036, GC Sorensen (SS) to NRC, same subject, dated March 2, 1990 In accordance with the Code of Federal Regulations, Title 10, Parts 50.90 and

2. 101, the Supply System hereby submits a request for amendment to the WNP-2 Technical Specifications. Specifically, the Supply System is requesting that the battery load. profile for the Bl-HPCS battery in Surveillance Requirement 4.8.2. l.d.2 be revised as attached to reflect the plan to add an additional load to this battery during our spring 1990 refueling outage.

An a-c driven soak back pump for the High Pressure Core Spray (HPCS) diesel is to be installed in parallel with the existing d-c driven pump. The a-c pump will be: used during normal operation and the existing pump will be available as a backup. The soak back pump continuously circulates warm lube oil through the turbocharger bearings to minimize wear on engine starts. It also removes heat from the turbocharger following engine shutdown. The reason for the addition of the a-c driven pump is that the present d-c driven pumps were not designed for continuous operation and have, therefore, been a continuing maintenance problem.

With this change, the d-c motor represents a load to the battery that will be applied at the time of loss of a-c power. Previously the pump was included in the load profile as a continuous 4.4 amp load. The d-c pump motor in-rush current is 19.6 amps which results in a 15.2 amp addition to the load profile for 0-13 seconds (the continuous 4.4 amp load is subtracted from the 19.6 in-rush load).

9004200232 tol ADOCK P5000397 90040'DR PDC

Page Two

. REQUEST FOR AMEND TO TS 3.8.2.1 DC SOURCES, BATTERY LOAD PROFILE A battery load calculation has been performed confirming that the battery can accommodate this increased load and meet the operability considerations of the Surveillance Requirements in Section 4.8.2. 1 of the WNP-2 Technical Specifica-tions. However, the battery load profile specified in surveillance 4.8.2. I.d.2 for the Bl-HPCS battery must be changed such that the surveillance will continue to verify operability of the battery for the increased 0-13 second load.

The Supply System has reviewed the revision per 10CFR 50.92 and provides the following in support of a finding for no significant hazards consideration. This change does not:

1) Involve a significant increase in the probability or consequences of an accident previously evaluated because calculations have been performed demonstrating that the battery can accommodate the increased load and meet all requirements for operability. Hence, the operation of the battery under normal and upset conditions is not degraded and this change does not impact the probability or consequences of an accident previously evaluated.

2) Create the possibility of a new or different kind of accident from any previously evaluated because the battery is not being changed, nor are any changes being made, to the way it is,being'utilized or asked to perform.

The additional load being added:has been evaluated, by calculation, as not resulting in any changes to the battery capability and confirmed the battery as still capable of fulfilling the licensing bases requirements.

Hence no new or different kind of accident is credible due to this change.

3) Involve a significant reduction in a margin of safety because as discussed above calculations have been performed to confirm that the battery will remain operable and meet the Surveillance Requirements of Technical Specification 4.8.2. 1. Hence, the battery will continue to fulfill its safety requirements. In meeting the requirements of the Technical Specification Surveillance Requirements in Section 4.8.2. 1 the required margin of safety is assured.

As discussed above, the Supply System considers that this change does not involve a significant- hazards consideration. Further, the change has no potential for significant change in the types or significant increase in the amount of any effluents that may be released offsite, nor does it involve a significant increase in individual or cumulative occupational radiation exposure. According-ly, the proposed change meets the eligibility criteria for categorical exclusion set forth in lOCFR 51.22(c)(9) and therefore, per lOCFR 51.22(b), an environmen-tal assessment of the change is not required.

It should be noted that the reference requested a change to the load profiles for the other batteries included in this technical specification section. The attached marked-up copy of the Technical Specifications indicates what was previously requested by the reference and what is requested by this submittal.

Page Three RE(UEST FOR AHEND TO TS 3.8e2e I DC SOURCES, t

BATTERY LOAD PROFILE In the refer ence we explained that the technical specification change request of that reference was required to support battery load profile testing to be conducted in the spring refueling outage (now scheduled to begin April 20). It would be desireable to have this change for the Bl-HPCS battery load profile also included in your reply prior to the outage. However this is not absolutely necessary as we can install and then tag out the a-c pump until the amendment is provided. Therefore we request that this second submittal not result in a delay in responding to the reference that would extend into the outage.

This amendment request has been reviewed and approved by the WNP-2 Plant Operating Committee (POC) and the Supply System Corporate Nuclear Safety Review Board (CNSRB). In accordance with lOCFR 50.91, the State of Washington has been provided a copy of this letter.

Very truly yours, G. C. Sorensen, Hanager Regulatory Programs AGH/bk cc: JB Hartin -'RC RV NS Reynolds - BCP&R RB Samworth - NRC DL Williams - BPA/399 NRC'Site Inspector - 901A C Eschels - EFSEC,

Request for Amend. to TS 3.8. 2 e 1 DC STATE OF WASHINGTON )

Subject:

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COUNTY OF BENTON )

I, A. G. HOSLER, being duly sworn, subscribe to and say that I am the Manager, WNP-2 Licensing, 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 pal 5 1990 A. G. HO L R, anager WNP-2 Licensing On this day personally appeared before me A. G. HOSLER to me known to be the

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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 ,1990.

o y u scsnand or te State of Washington Residing at

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