ML17275A781

Interim Deficiency Rept Re Wiring Interfaces on Motor Operators.Conflict Discovered Between Electrical Const Drawings & Info Provided by Subcontractor.Followup Rept to Be Submitted by 810318

ML17275A781
Person / Time
Site:	Columbia
Issue date:	01/07/1981
From:	Matlock R WASHINGTON PUBLIC POWER SUPPLY SYSTEM
To:	Engelken R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
References
10CFR-050.55E, 10CFR-50.55E, GO2-81-04, GO2-81-4, NUDOCS 8101140497
Download: ML17275A781 (7)

Text

REGULATO~~ INFORMATION DISTRIBUTION SYSTEM (RIDS)

ACCESSION NBR:8101140497 DOC ~ DATE: 81/01/07, NOTARIZED: NO DOCKET,- f FACIL:50-397 HPPSS Nuclear Pro,locti Unit 2'P I'washington Public Powe 05000397 AUTH ~ NAMg, AUTHOR AFFILIATE'ION MATLOCK,R,G. washington Pub)ic Power Supply System REC IP ~ NAME RECIPIENT AFFILIATION, ENGELKENPR+H ~ Region 5P San Francisco'ffice of the Director' SUBJECT; Interim deficiency rept re wiring interfaceson motor.

operators'onflict discovered between e,lectrical const, drawings E,info provided by subcontractor.Followup rept to be submitted by 810318.

DISTRIBUTION CODE,'OI9S .COPIES RECEIYEDlLTR ', ENCL 3 Construction Deficiency Report. (10CFR50 ~ 55E)

SIZE:'ITLE':

NOTES:PM: 2 copies of all materials 05000397 RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL IO LTTR ENCL" CODE/NAME'OUNGBLOODEB ACTION: A/D LI CENSNG 04 1 1 05 1 1 RUSHBROOKPM ~ 06 1 1 LYNCHPDQ 07 1 1 INTERNAL: AD/RCI/IE 17 1 1 AEOO 18 1 1 ASLBP/JQHARD 1 1 D/OIR HUM FAC15 1 1 DIRE DIV OF LIC 1 1 EDO E STAFF 19 1 1 EQUIP QUAL BR11 1 1 HYO/GEO BR 22 1 1 ILE 09 1 1 LIC QUAL BR 12 1 1 MPA 20 1 1 NRC PDR 02" .1 1 OELD 21 1 1 REV 13 1 1 QA BR 14 1 1 REG F 01 1 1 RUTHERFORDPN.IE 1 1 S ANDRDS DEV 21 1 1 EXTERNAL: ACRS 16 16 16 LPDR 03 1 1 NSIC 08 1 4AA 18 198l TOTAL NURSER DP COPIES REQUIRED: LTTR ~ ENCL

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P Washington Public Power Supply System 8 A JOINT OPERATING AGENCY P.O. BOX 968 3000 GEO, WASHINGTON WAY RICHLAND, WASHINGTON 99352 PHONE I509) 372 5000 G02-81-04 January 7, 1981 Docket No. 50-397 Nuclear Regulatory Commission C3 CA I CD m Region V O3C Suite 202, Walnut Creek Plaza wB Vk ~

1990 North California Blvd. XXA ~CA Walnut Creek, California 94596.

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~5 Attention: Mr. R. H. Engelken, Director Gentlemen:

Subject:

WPPSS Nuclear Project No. 2 Reportable Deficiency - 10CFR50.55(e)

Wirin Interfaces on Motor 0 erators d i 1 1 p i i ~OCFIIEIL55~

informed by telephone on December 8, 1980, of a potentially reportable deficiency involving engineering design and procurement of motor operated valves. During an engineering design review, it was discovered that a conflict exists between electrical construction drawings and the infor-mation provided by the motor operator subcontractor..

Attached is our interim report on this deficiency.

If you require additional information, please contact us.

Very truly yours,

!~~>g> i ~'.A R. 4. Matlock Program Director, WNP-2 RGM:BHS:cph attachment cc'/att: JJ Verderber - Burns 8 Roe V. Stello - NRC AD Toth - NRC Resident Inspector B. Wood - NUS/LIS JR Lewis - BPA WNP-2 Files 5i,.

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WASHINGTON PUBLIC POWER SUPPI Y SYSTEM DOCKET NO. 50-397 LICENSE NO. CPPR-93 INTERIM REPORT ON THE POTENTIAL 10CFR50.55(e)

REPORTABLE DEFICIENCY IN WIRING INTERFACE FOR SAFETY-RELATED VALVE MOTOR OPERATORS NATURE OF POTENTIAL PROBLEM A review of a vendor drawing submittal in regards to motor operated valves from the Borg-Warner Corporation was conducted in October of 1980. During this review, Burns and Roe Engineering discovered a mismatch between the connection/wiring diagrams for RCIC-V-69, RCIC-V-110 and RCIC-V-113, and vendor wiring diagrams. Furthermore, the accompanying motor data for RCIC-V-69 indicated a voltage rating of 125 VDC, whereas the contract specification indicated a voltage of 250 VDC which is a design requirement.

Drawing E-540, Sheets 1 and 2, indicate cable connections direct to the limit switch terminals and limit switch interconnections to be done by the electrical construction contractor. The vendor wiring diagram shows prewired connections of the limit switches to a terminal block and between selected limit switches.

A lid i y the aforementioned valves require terminal blocks to be provided for connection of all external cabling. Apparently, this requirement was not considered in the design stage of Drawing E-540 nor was the vendor drawing submittal used as basis for the construction drawing.

APPROACH TO AND STATUS OF PROBLEM RESOLUTION Burns and Roe is evaluating the scope, cause and reportability of the problem. The connection/wiring diagram for each motor operated valve under the particular contract, Contract 215, will be reviewed against the vendor's wiring diagram. Changes in the construction drawings will be made as needed and the installed wiring r eterminated accordingly.

The Contract 215 contractor has been informed of the voltage problem of RCIC-V-69. A field inspection at the receiving warehouse will be made to determine if the motor, as shipped, is in fact deficient. If so, the motor operator will be replaced. The contractor's procurement procedure will be reviewed to determine adequacy and compliance to the contract specifications.

Attachment Page 2 of 2 PROJECTED COMPLETION OF FINAL REPORT AND CORRECTIYE ACTION There are around 45 safety-related motor operated valves in Contract 215. The design problem could also apply to non-safety-related valves and valves procured under other contracts should the deficiency be generic to the design procedure. Hence, addi-tional time is required to complete the review process. A follow-up report will'e submitted by March 18, 1981.