ML17275A653

Final Deficiency Rept Re Installation of Missile Producing Equipment in Class IE Area.Protective Barriers Have Been Designed to Prevent Motor Generator Set Flywheel Failure from Damaging Adjacent Class IE Equipment

ML17275A653
Person / Time
Site:	Columbia
Issue date:	10/21/1980
From:	Renberger D WASHINGTON PUBLIC POWER SUPPLY SYSTEM
To:	Engelken R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
References
10CFR-050.55E, 10CFR-50.55E, GO2-80-227, NUDOCS 8010280486
Download: ML17275A653 (5)

Text

REGULAT Y INFORMATION DISTRIBUTIO~ "YSTEM (RIDS)

ACCESSION NBR:801028048o DOC DATE: 80/10/21 NOTARIZED: NO DOCKET 0 FACIL:50-397 IphlPPSS Nuclear Projects Unit 2i Washington Publ ic Powe 05000397 AUTH. NAME AUTHOR AFFILIATION RENBERGERiD,L, Washinaton Public Power Supply System RECIP NAME RECIPIENT AFFII.IATION ENGELKfNiR,HE Region 5/ San Franciscoi Office of the Director

SUBJECT:

Final deficiency rept re installation of missile producing equipment in Class IE area. Protective barriers have been designed to prevent motor generator set flywheel failure from damaging adjacent Class IE equipment; DISTRIBUTION CODE: 8019S COPIES RECEIVED:LTR NCL 9 SIZE:~

Cons t ruc t i on Deficiency Report (10CFR50-, 5E') 4K'ITLE:

NOTES:PM: 2 copies of all material, 05000397 RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LlTTR ENCL ID CODE/NAME LTT'R 'ENCL ACTIONS A/D LICENSNG 04 1 1 YOUNGBLOODiB 05 RUSHBROOKgM, 06 1 1 LYNCHtDe 07 1 1 INTERNAL: AD/RC I/IE 17 1 1 AEOD 18 ASLBP/J ~ HARD EDO 8 HYD/GEO BR LIC STAFF<

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"'vP Washington Public Power Supply System A JOINT OPERATING AGENCY P. O BOX 988 3000 GCO. WASHINCTON W*Y AICHLAN0, WASHIHCTON 00352 PHONE (503) 375 5000 October 21, 1980 G02-80-227 Nuclear Regulatory Commission Region V Suite 202, Walnut Creek Plaza 1900 North California Blvd.

Walnut Creek, CA 94596 Attention: Mr. R. H. Engelken Gentlemen:

Subject:

WPPSS NUCLEAR PROJECT NO. 2 DOCKET NUMBER 50-397, CPPR-93 REPORTABLE DEFICIENCY - 10CFR50.55 e In accordance with the provisions of 10CFR50.55(e), your staff was informed by telephone on February 18, 1980, of a reportable condi tion regarding the installation of missile producing equipment (RPS MG Sets) in a Class lE area. An interim report of, this deficiency was trans-mitted to you by WNP-2 Docket letter G02-80-73, dated March 21, 1980.

Attached is our final report describing the deficiency and the cor-rective actions.

Very truly yours, D. L. RENBERGER

~

Assistant Director Technology DLR:GWB:cd attachment cc: Verderber '- B&R

'CJJ Root - B&R Site GT Harper - B&R Site 4V; Stello - NRC~

B. liood - NUS Corporation ND Lewis - EFSEC, Olympia JR Lewis - BPA WNP-2 .Files

@wc 801'0880 4,86 5

i t WPPSS NUCLEAR PROJECT NO. 2 REPORTABLE DEFICIENCY AND CORRECTIVE ACTION FOR INSTALLATION OF MISSILE PRODUCING EQUIPMENT WITHIN CLASS 1E AREA FINAL REPORT WASHINGTON PUBLIC POWER SUPPLY SYSTEM DOCKET NO. 50-397 LICENSE NO. CPPR-93 Descri tion of Deficienc The potential missile producing non-safety-related RPS MG Sets are

-installed in a Class lE area. This installation arrangement imposes a potential hazard to the safety-related equipment in the area.

Safet Si nificance In the event of a flywheel failure, the lack of positive protection barriers between the RPS MG Set flywheels and the adjacent Class 1E equipment could result in the loss of or damage to safety-related equipment in the area. In this instance, assuming a single failure in one division, the alternate division could be disabled due to a missile generating failure of the RPS MG Sets.

Corrective Action Protective barriers have been designed to prevent MG Set flywheel failure from damaging adjacent Class lE equipment. The protective barriers consist of steel shrouds enclosing the flywheel area of each MG Set. The shrouds have the capability of containing a flywheel in the event of an MG Set structural failure. The shroud will be bolted to the adjacent wall for one MG Set and to a free-standing steel structure for the other MG Set.