ML17285A645

Forwards Page 3 of Util 890720 Response to Violations Noted in Insp Rept 50-397/89-21 Re Routine Testing & Certification of Relays

ML17285A645
Person / Time
Site:	Columbia
Issue date:	07/31/1989
From:	Peck S WASHINGTON PUBLIC POWER SUPPLY SYSTEM
To:	Faulkenberry B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
References
GO2-89-131, NUDOCS 8908080277
Download: ML17285A645 (5)

Text

4C CELEBRATED Dl SVRIBU'EON DE M 04 STRXTION SYSTEM REGULATORY INFORMATION DISTRIBUTION SYSTEM -(RIDS)

SSION NBR-8908080277 DOC.DATE: 89/07/31 NOTARIZED- NO DOCKET ACIL:50-397 WPPSS Nuclear Project, Unit 2, Washington Public Powe 05000397 AUTH. NAME AUTHOR AFFILIATION PECK,S.H. Washington Public Power Supply System RECIP.NAME RECIPIENT AFFILIATION FAULKENBERRY,B. Region 5, .Ofc of the Director

SUBJECT:

Forwards Page 3 to util 890720 response to violations noted in Insp Rept 50-397/89-21.

DISTRIBUTION CODE: IEOID TITLE: General COPIES RECEIVED:LTR f ENCL (50 Dkt)-Insp Rept/Notice of Violation Response J SIZE:

NOTES:

RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL PD5 PD 1 1 SAMWORTH,R 1 1 INTERNAL: ACRS 2 2 AEOD 1 1 AEOD/DEIIB 1 1 AEOD/TPAD 1 1 DEDRO 1 1 NRR SHANKMAN,S 1 1 NRR/DEST DIR 1 1 NRR/DLPQ/PEB 1 1 NRR/DOEA DIR 11 1 1 NRR/DREP/EPB 10 1 1 NRR/DREP/RPB 10 2 2 NRR/PMAS/ILRB12 1 1 NUDOCS-ABSTRACT 1 1 OE LIEBERMAN,J 1 1 OGC/HDS2 1 1 RE 1 1 RES MORISSEAU,D 1 1 01 1 1 RNAL: LPDR 1 1 NRC PDR 1 1 NSIC 1 1 NOZE 'IO ALL "RIDS" RECIPIENIS PLEASE HELP US 'IO RECCE HASTE. CXNI'ACT 'IHE DOCUMENT CXNZROL DESK, KXM Pl-37 (EXT. 20079) KO EIZMQ468 ACR NAME PKH DIBTRIBUTICN LISTS FOR DOCl2%ÃIS YOU DCRPT NEEDt OTAL NUMBER OF COPIES REQUIRED: LTTR 25 ENCL 25

WASHINGTON PUBLIC POWER SUPPLY SYSTEM P.O. Box 968 ~ 3000 George EVashinglon lay ~

Richland, ll'ashinglon 99/52 r~

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ql V July 31, 1989 G02-89-131 Docket No. 50-397 Mr. B. H. Faulkenberry Deputy Regional Administrator U.S. Nuclear Regulatory Commission Region V 1450 Maria lane, Suite 210 Walnut Creek, CA 94596

Subject:

NUCLEAR PLANT NO. 2 SUBMITTAL OF OMITTED INFORMATION TO RESPONSE TO NRC INSPECTION REPORT 89-21

Reference:

Letter, G02-89-120, G.D. Bouchey to NRC, same subject, dated July 20, 1989 Attached is Page 3 of 12 of the reference report which was inadvertently omitted from the July 20, 1989 submittal. We regret any inconvenience this may have caused the Staff.

Very truly yours, S. H. Peck, Supervisor Materials Support Engineering cc: JB Martin NRC RV NS Reynolds - BCP8R RB Samworth - NRC DL Williams - BPA/399 NRC Site Inspector - 901A 3503030277 390731 PbR ADOCK 0 000397 0 PDC

I Page 3 of 12 Coil rated voltage is specified in the purchase document and is stated on the relay's nameplate. It is normal procedure for the receipt inspection to verify by comparison that the received item's nameplate data matches the purchase documents description. The audited manufacturer's QA program gives us reason-able assurance that the correct nameplate is attached to the relay.

NIL-R-19523A(SHIPS) requires routine testing of each relay subject to NIL-R-19523A(SHIPS). This testing includes:

o Visual and mechanical examination to verify the materials, design, con-struction, dimensions, weight, marking and workmanship.

o Measuring the coil resistance to determine if it is within 10K of the value required by the design.

o Measuring of the insulation resistance to determine if it is within design 1 imi ts.

o Measure of the pick-up and drop-out voltages at maximum operating tempera-ture to determine that they are within specified limits.

o A dielectric test.

The routine testing gives us reasonable assurance that the relays supplied are of high quality and that the problem documented by Palo Verde Unit 3 LER, Docket Number 50-530, does not exist for the supplied relays. Control over relays with know deficiencies identified by specified data code has been estab-lished to assure none are installed, available for installation or procured by the Supply System. Post maintenance testing would also reveal this problem.

Contact configuration is verified at time of installation by post maintenance testing.

Per the INPO NPRDS records on 968 MDR relays there, have been 35 failures based on records from 12/8$ to 10/88. The failure rate for this relay type is approximately 3 X 10 . This is considered by the Supply System to indicate a high reliability factor.

The Supply System has obtained certification that the relays supplied through Newark Electronics were manufactured by Potter 8 Brumfield to the purchase order requirements and the f otter 8 Brumfield QA program as verified by serial numbers on relays. A Supply System QA Auditor has verified that the tests and inspections required by the NIL Spec. were accomplished on 2/10/87 or 2/12/87.

Conclusion The Supply System concludes that all critical characteristics of the relay have been verified by a combination of manufacturer's testing/inspection (Method 1*), Supply System testing/inspection (Method 1), audit of manufacturer (Method 2), performance history (Method 3) and approved vendor certification.

Therefore, the relay installed, by NNR AV1684 is acceptable for its application.

• Acceptance methods as defined in NCIG-07