ML20134N598

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Summary of 850716 Meeting W/Util & Bechtel in Bethesda,Md Re App R Compliance & Circuit Separation Evaluations.List of Meeting Attendees & Viewgraphs Encl
ML20134N598
Person / Time
Site: Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date: 08/29/1985
From: Hermann R
Office of Nuclear Reactor Regulation
To:
Office of Nuclear Reactor Regulation
References
NUDOCS 8509050213
Download: ML20134N598 (61)
v • d • e


Text

{{#Wiki_filter:* o August 29, 1985 Docket No. 50-271 LICENSEE: Vermont Yankee Nuclear Power Corporation FACILITY: Vermont Yankee Nuclear Power Statica

SUBJECT:

MEETING

SUMMARY

- FIRE PROTECTION - APPENDIX R -

III.G EXEMPTION REQUESTS A meeting was held on July 16, 1985 in Bethesda, Maryland between representatives of Vermont Yankee and the NRC staff to discuss the licensee's Appendix R compliance and circuit separation evaluations. A list of the attendees is enclosed (Enclosure 1). A copy of the licensee's presentation material is also enclosed (Enclosure 2).. The licensee provided: an overview of its Appendix R methodology, a discussion of its safe shutdown analysis and the associated electrical circuitry of concern, and discussion of its exemption requests. The licensee stated they would like the staff to complete its review by the end of September 1985 so that the schedule and scope of fire protection work at the upcoming refueling and maintenance outage could be finalized. The details of the exemption requests were discussed and the staff i identified information that was required to enable it to complete its review. The licensee stated the requested information would be provided to .the staff by late August 1985. Original signed by/ Robert A. Hermann, Project Manager Operating Reactors Branch #2 Division of Licensing i

Enclosures:

l As stated cc w/ enclosures: See next page j DISTRIBUTION i CNS 0 ELD RHermann ~" NRC PDR ELJordan VRooney Local PDR BGrimes JStang t ORBf2 Reading ACRS (10) SWest ORBf2 Mtg File /) NRC Participan DVassallo. ( RHermann DL:0RBS DL:0RBf2 DL:0 B#2 RHertEnn:ajs VRooney DVassallo 08/pq/85 08 M /85 08/ j/85 2 l !DR 71 F PDR

4 Mr. R. W. Capstick Vemont Yankee Nuclear Power Corporation Vemont Yankee Nuclear Power Station ~. cc: Pr. W. F. Conway President & Chief Executive Officer W. P. Murphy, Vice President & Vemont Yankee Nuclear Power Corp. Manager of Operations R. D. 5. Box 169 Vemont Yankee Nuclear Power Corp. Ferry Road R. D. 5 Box 169 Ferry Road Brattleboro, Yemont 05301 Brattleboro, Yemont 05301 Mr. Donald Hunter, Vice President Yemont Yankee Nuclear Power Corp. Mr. Gerald Tarrant. Comissioner i 1671 Worcester Road Vermont Department of Public Service i ..l~ Framingham, Massachusetts 01701 120 State Street Montpelier, Vermont 05602 J New. England Coalition en Nuclear Pollution r Hill.and Dale Fam 1 d? "- R..F. 2, Box 223 Public Service Board i Putney, Vermont 05346 State of Vermont 120 State Street Mr. Walter Zaluzny Montpelier, Vermont 05602 Chaiman, Board of Selectman Post Of' ice Box 116 Vemont Yankee Decommissioning Vernon, Vemont 05345 Alliance Box 53 4 J. P. Pc11etier, Plant Manager Montpelier, Yermont 05602-0053 Vemont Yankee Nuclear Power Corp. Post Office Box 157 Vernon, Vermont 05354 Resident Inspector U. S. Nuclear Regulatory Comission Raymond N. McCandless Post Office Box 176 Vermont Division of Occupationti Vernon, Verront 05354 ~ & Radiological Health ,~ Administration Building Yemont Public Interest 10 Baldwin Street Research Group, Inc. 43 State Street Montpelier, Vemont 05602 Montpelier, Vermont 05602 Honorable John J. Easton Attorney General Thomas A. Murley State of Vermont Regional Adninistrator 109 State Street Region 1 Office Montpelier, Vennont 05602 U. S. Muclear Regulatory Comission 631 Park Avenue John A. P.itscher, Esquire King of Prussia, Pennsylvania 19406 Ropes & Gray 225 Franklin Street Boston, Massachusetts 02110

i l ENCLOSURE 1 VERMONT YANKEE APPENDIX R MEETING ATTENDANCE LIST FOR JULY 16, 1985 Name Affiliation Bill Hinkle Yankee Atomic Andrew C. Kadak Yankee Atomic Sam Watson Bechtel/SERCH

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Wade Larson EPM ' 2'- Robert A. Hermann NRC John St'ang ge. NRC . Ari Krisopoulos ~ NRC ~

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Steven West NRC Ralph N. Moschella Yankee Atomic Ross Howe EPM J Paul R. Johnson Yankee Atomic Dan Yasi Yankee Atomic Dennis Girroir Vermont Yankee Edward A. Sawyer Yankee Atomic David Phillips Vermont Yankee Rick Ludwick Vermont Yankee Victor Benaroya NRC .g.

ENCLOSURE 2 i t I I l! VERMONT YANKEE i j PRESENTATION r FOR i j MEETING WITH NRR TO DISCUSS q 4,. APPENDIX R - Ill.G EXEMPTION REQUESTS-i i w. h, b* 4 l.i. ;-... :.. ~~ y-, R A 9 W l [',. ' " j j L-JULY 16, 1985 r l l ) 9

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i AGENDA FOR VY/NRR MEETING TO DISCUSS APPENDIX R - Ill.G EXEMPTION REQUESTS TUESDAY, JULY 16, 1985 10:00 A.M. - 3:00 P.M. + IIE 10Pjf SPEAKERS [ 10.:00-10:15 INTRODUCTION - PURPOSE /G0AL OF A.. MDAK MEETING, OVERVIEW 0F AGENDA N ~' ' ~ 10:15-11:15 RESURVEY METHODOLOGY - DIVISION W. LARSON OF PLANT INTO FIRE AREAS / ZONES, SAFE SHUTDOWN CAPABILITY ANALYSIS 11:15-12:15 RESURVEY RESULTS - REQUIRED R. MOSCHELLA EXEMPTIONS 12:15-1:15 LUNCH 1:15-1:45 RESURVEY RESULTS - ENGINEERING R. M0SCHELLA 7;' MODIFICATIONS 4 'i-1:45-2:00' ~ VY PLAN FOR APPENDIX R CLOSE00T - W. HlHKLE '~ TASKS, SCHEDULE 2:00-3:00 NRR COMMENTS /0UESTIONS - EXEMPTIONS, R. HERMANN c. VY CLOSE00T PLAN S. WEST I I t 6 -w, ,.n-

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i p - m r-- J.. M t. k.. ~~ t j PURPOSE-PROVIDE DESCRIPTION OF: j o APPENDIX R COMPLIANCE EVALUATION o CIRCUIT SEPARATION EVALUATION l 1 ( t

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~ i -', rp = r. N.. c r .i., .e t, APPENDIX R METH000 LOGY ,4 o DEFINE FIRE AREAS / ZONES DEFINE SAFETY FUNCTIONS / PERFORMANCE OBJECTIVES o IDENTIFY SAFE SHUTDOWN SYSTEMS o IDENTIFY VITAL EQUIPMENT AND COMPONENTS o i i p 9 i

~~ ,r. tp a t. . 7...p,, p. r i h 1 APPENDIX R METHODOLOGY (CONT.) IDENTIFY CIRCUITS ASSOCIATED WITH VITAL EQUIPMENT o AND COMPONENTS POWER CIRCUITS CONTROL CIRCUITS EVALUATE ASSOCIATED CIRCUITS o i e i a

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,,u.. r r, ::. r - r ~ i:. APPENDIX R METHODOLOGY.(CONT.) o TRACE ROUTlHG OF CIRCUITS o IDENTIFY RACEWAY LOCATIONS OF INTEREST o DETERMINE IF REDUNDANT HOT SHUTDOWN FUNClIONS ARE PRESENT IN THE SAME FIRE AREA / FIRE ZONES IDENTIFY LOCATIONS IN WHICH CIRCUITS, (INCLUDING o ASSOCIATED CIRCUITS) 0F SYSTEMS REQUIRED FOR HOT SHUTDOWN FROM REDUNDANT DIVISIONS, HAVE LESS THAN 20 FEET'0F HORIZONTAL SEPARATION 4 a T g 9 e 4

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e-- c ,. m c, -.,m c,; r .q r,. : APPENDIX R SAFE SHUTDOWN ANALYSIS.DETAll SAFE SHUTDOWN SEQUENCE DIAGRAMS (SECTION 2) o IDdNTIFY MINIMUM SAFE SHUTDOWN EQUIPMENT (TABLE 2-2) IDENTIFY SPURIOUS CANDIDATE COMPONENTS o ELECTRICAL ENGINEERING ANALYSIS IDENTIFY MINIMUM SET OF SAFE SHUTDOWN CABLE LOCATE EQUIPMENT AND CABLES IN THEIR FIRE AREAS AND FIRE ZON

r, d. r r-- r '. a m 6. r . c. m a v; ..? ? 2:. APPENDIX R SAFE SiluTDOWN ANALYSIS DETAIL (CONT.) o REVIEW PLANT PHYSICAL ARRANGEHENT (SECTION 3) LOCATE RATED PilYSICAL BARRIERS LOCATE MAJOR SAFE SHUTDOWN EQUIPMENT IDENTIFY FIRE AREA / ZONE DIVISION OF PLANT J a

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.s.. 1 EXEMPTION REQUEST NO. 2 REACTOR BUILDING-RCIC AREA

EXEMPTION No. 3 - REACTOR BUILDING - NORTHWEST CO ELEV. 232' Ill.G.28 REQUIREMENTS: A) 20' SEPARATION B) DETECTION c) SUPPRESSION 4... VY CONFORMANCE:- -2 7 A) 20'SEPARATIONNOTUNIFORk u : 2- - - PROVIDED ~~ ,p ~ B) DETECTION .2 c) SUPPRESSION fj EXEMPTION REQUESTED: REQUIREMENT FOR 20' SEPARATION BASIS: r, - 2 CABLES ARE IN RIGID STEEL CONDUITS THAT P.UN THREE FEET APART FOR SEVE ~ FEET.AND THEN QUICKLY DIVERGE. 4 6

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5 e &! 5 4 1.j .'[ ' 7 1 5: / 1 r, i 2 EXEMPTION REQUEST NO. 3 REACTOR BUILDING - NW CORNER ROOM-ELEV. 232' SHOWING SEPARATION OF CONDUlTS 9 0 9

t EXEMPTION NO. 4 - REACTOR BUILDING - NO CORNER ROOMS Ill.G.2s REQUIREMENTS: A) 20' SEPARATION L B) DETECTION i c) SUPPRESSION 4. VY CONFORMANCE: 'i". A) 20' FOOT SEPARATION ~ i B) DETECTION jil;;: '. c) SUPPRESSION NOT PROVIDED

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4 EXEMPTION REQUESTED: 3 REQUIREMENT FOR SUPPRESSION BASIS: 2 THERE ARE ESSENTIALLY NO COM-BUSTIBLES TO SUPPORT THE PROPA -J TION OF A FIRE BETWEEN THE ROOM a.- O*'- ? IP r i I v..

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  • s -o. 9 EXEMPTION RE00EST NO.11 REACTOR BUILDING-NE AND SE CORNER ROOMS SHOWING NO COMSUSTIBLES BETWEEN THE ROOMS l

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EXEMPTION NO. 5: - REACTOR BUILDING - N'ORTHEAST CORNER, ELEV. 252 - VITAL MCC's Ill.G.2.s REQUIREMENTS: A) 20' SEPARATION B) DETECTION c) SUPPRESSION VY CONFORMANCE: A) 18' SEPARATION WITH INTERIDilNG HEAT SHIELD

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~ 4~~ p. a) DETECTION NOT PROVIDED c) SUPPRESSION NOT PROVIDED EXEMPTION REQUESTED: u. A) REQUIREMENT FOR 20' SEPARATION B) REQUIREMENT FOR DETECTION. c) REQUIREMENT FOR SUPPRESSION. BASIS: 18' SEPARATION IS PROVIDED WHICH INCLUDES A RADIANT HEAT SHIELD. NO INTERVENING COMBUSTIBLES IN AREA. n PRESENCE OF FIRE EXTINGUISHERS AND HOSES. t l l I

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Ig,. if I ~ k 1 i c ' Wett g l ) [,. U. ); g 1 JJ T \\ M \\ i i i EXEMPTION REQUEST NO. 5 REACTOR BUILDING-EAST SIDE-ELEV. 252 VITAL MCC AREA SHOWING NO COMBUSTIBLES IN AREA I i i

EXEMPTION NO. 6: - REACTOR BUILDING - NORTH III.G.2.s REQUIREMENTS: A) 20' SEPARATION B) DETECTION i c) SUPPRESSION l' VY CONFORMANCE:

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A) 18' SEPARATION "3 s) DETECTION

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c) SUPPRESSION ~ ~2 EXEMPTION REQUESTED: REQUIREMENT FOR 20' SEPARATION f* ]- BASIS: 18' SEPARATION IS PROVIDED. THERE ISVERYLOWCOMBUSTIBLELOADINdIN THE AREA. e I^ l 4 y 7 c.

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EXEMPTION NO. 7 - REACTOR BUILDING - EAS - INSTRUMENT RACKS Ill.G.2.s REQUIREMENTS: A) 20' SEPARATION y s) DETECTION c) SUPPRESSION VY CONFORMANCE: v.. u._ A) 20' SEPARATION d s) DETECTION NOT PROVIDED . fp i " i ~- c) SUPPRESSION NOT PROVIDED EXEMPTION REQUESTED: a r. J REQUIREMENT FOR DETECTION ~ REQUIREMENT FOR SUPPRESSION BASIS: [ :#. DETECTION AND SUPPRESSION ARE PROVIDED OVER THE MG SET AREA. c OUTSIDE MG SET AREA THERE IS LOW COMBUSTIBLE LOADING IN THE AREA r L I b v

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EXEMPTION NO. 8 - REACTOR BUILDING - WEST SIDE, ELEV. 280 s III.G.2.s REQUIREMENTS: A) 20' SEPARATION B) DETECTION c) SUPPRESSION VY CONFORMANCE: i: A) 20' SEPARATION t:: B) DETECTION NOT PROVIDED c) SUPPRESSION NOT PROVIDED

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I' EXEMPTION REQUESTED: REQUIREMENT FOR DETECTION t. REQUIREMENT FOR SUPPRESSION BASIS: 1 2 ~ THERE IS LOW COMBUSTIBLE LOADING .THE AREA. FIRE EXTINGUISHERS AND HOSES ARE PROVIDED. 1 e

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EXEMPTION REQUEST NO. 8 REACTOR BUILDING-NW CORNER-ELEV. 280'

a EXEMPTION NO. 9 - TURBINE BUILDING - RADWASTE BUILD - POWER CABLES Ill G.2.c REQUIREMENTS: A) ENCLOSURE OF ONE DIVISION WITHIN A ONE HOUR RATED BARRIER m s) DETECTION c) SUPPRESSION g"' VY CONFORMANCE: ~ A) BOTH DIVISIONS ARE ENCL 0 SED WITHIN A ONE HOUR RATED BARRIER li w. - ,g f. B) DETECTION NOT PROVIDED f' c) SUPPRESSION NOT PROVIDED EXEMPTION REQUESTED: REQUIREMENT FOR DETECTION REQUIREMENT FOR SUPPRESSION m BASIS: BOTH DIVISIONS ARE ENCLOSED IN BARRIERS. NO INTERVENillG C0rtBUS-TIBLES IN AREA. t P I

---.,_---m. -.h_,-u -._m-a_ a ---.._e-__-.--___.--_m._m-a_m m n-- m .,.,,4 .m_m. e m__--*a---. _-m.-_,e-e_-a__. .A v---- -m y 1 l 1 j i l e j .U jT* I i l I l i l EXEMPTION REQUEST NO. 9 TURBINE BUILDING-RADWASTE BUILDING llALLWAY i i SHOWING NO COMBUSTIBLES IN AREA l l l l

P EXEMPTION N0. 10 - DIESEL FUEL OIL TRANSFER PU Ill.G.2.s REQUIREMENTS: A) 20' SEPARATION B) DETECTION t c) SUPPRESSION 4 VY CONFORMANCE: A) LESS THAN 20' SEPARATION '{ ~.' s) DETECTION r.- D7.. c) SUPPRESSION NOT PROVIDED' - ~

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_r' EXEMPIl0N REQUESTED: b REQUIREMENT FOR 20' SEPARATION REQUIREMENT FOR SUPPRESSION t. BASIS: u BUILDING IS ISOLAlED CONTAINING NO OTHER EQUIPMENT. ABSENCE OF IGNITION-SOURCES. I-l t .} 1 c l'

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t r . "i / tg s.i. (, * ; 4 ' [ '. 1 k, ~ :.l' ~ i .f 'I "'. i \\ l y ,.'p,s: - i t 4 J k .R. ',>{. t,l.. 76 j.f \\jl*'*:. ,-e I .fi y , ) 'Q \\ t . 4, s. .t ..t l ' _'.t -E A[ N f., , $ y. g i =a ..g ~ , I8 1 _4.,- .~- h. + i m.. .g.-- 1 l EXEMPTION REQUEST NO. 10 1 DIESEL FUEL OIL TRANSFER PUMP BUILDING SHOWING ISOLATION OF AREA i i 0 0

EXEMPTION NO. D : CONDENSATE STORAGE TANK INSTRUMENT AREA Ill.G.2.s REQUIREMENTS: A) 20' SEPARATION a) DETECTION c) SUPPRESSION VY CONFORMANCE: .F,,, A) LESS THAN 20' SEPARATION. i'i-s) DETECTION NOT PROVIDED L: c) SUPPRESSION NOT PROVIDED ~. EXEMPTION REQUESTED: P.EQUIREMENT FOR 20' SEPARATION jI REQUIREMENT FOR DETECTION REQUIREMENT FOR SUPPRESSION BASIS: f: ~ THERE ARE NO COMBUSTIBLES IN THE r.' AREA. NO IGNITION SOURCES IN THE AREA. ~ I e-a [', t t

~ - ' ~~ ~ ~ ' ' ' T- ;,7,, g t-3 c---, ---,,, g g r.('9, 7 t.. i "a l l l E i i i r-_. \\ t 'T i l --~^3 ] .j 2 f \\ i t i l i -[ ,,ii j 1.i_ _.t i i l EXEMPTION RE0ljEST NO. 11 i CONDENSATE STORAGE TANK INSTRUMENT AREA l SHOWING SEPARATION OF EQUIPMENT AND NO COMBUSTIBLES IN AREA. l i O 9 9 j e

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C0f1PLETED ENGINEERING DESIGN CHANGES L. o RADIANT HEAT SHIELD INSTALLED BETWEEN MCC I 89A AND 89B ON 252' ELEVATION OF REACTOR BLDG 6.in. }- REROUTE OF CABLE ON 252' ELEVATION OF REACTOR.,. o Isi: '-~ BLDG EXTENSION OF SUPPRESSION SYSTEM IN NW CORNER o ' ~ 0F'252' ELEVATION OF REACTOR BLDG ~ INSTALLATION OF AUTOMATIC SUPPRESSION SYSTEM o a IN NW CORNER ROOM OF-232' ELEVATION OF REACTOR BLDG i i WRAPPING CONDUIT WITH A RATED FIRE BARRIER IN o l THE TURBINE BLDG /RADWASTE BLDG HALLWAY 2 O

S MODIFICATIONS ENGINEERED FOR 1985 0UTA CONDUIT - ENSURE PROTECTION FROM FIR o t REQUIRED SAFE SHUTDOWN EQUIPMENT BY WRAPPING OF CONDUIT WITH THERMAL SCIENCE .3,.

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(TSI) THERMO-LAG 330 3-H00R RATED FIRE "c ~ i.T. ;. - " 2J-BARRIERS I r TRAY STOP - ESTABLISH CORRIDORS OF N0 o INTERVENING COMBUSTIBLES BY APPLYIN [I Er ~ STOP SYSTEMS THERMALASTIC CABLE TR BREAKS u i> I I ~m.

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O i. -.o.. L." - b* ' ',J 3.._ VY PLAN FOR APPENDIX R CLOSEOUT e ..:1. L. L. P% "[, e 4 e p.O e e F I I + O

. =. VERMONT YANKEE PLAN E0R APPENDIX R CLOSE00T i o PROCEDURE CHANGES COMPLETED AUGUST 31, 1985 o. DESIGN CHANGES READY FOR INSTALLATION SEPTEMBER 15, 1985 r *.. b- . EXEMPTIONS RECEIVED FROM NRR 7 SEPTEMBER.30,1985 ~ jn' o-i:DOCUMENTATIONCOMPLETED 3 SEPTEMBER 30, 1985 o DESIGN CHANGES INSTALLED END OF 1985/86 m f[ OUTAGE CLOSE0DT AUDIT COMPLETED BY 18E JUNE 1, 1986 n J U SCHEDULED FOR MAY 1986 1 t' \\ i 4 w -,-s ee.-,-

OUTSTANDING TASKS e ONG0ING WORK AT VERMONT YANKEE o WORK HELD PENDING NRC INPUT o OBTAIN NRR APPROVAL OF III.G EXEMPTIONS l t OBTAIN/ REVIEW FINAL VERSION OF NRC STEERING COMMITTEE o REPORT (GL 85-0D

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OBTAIN 18E APPROVAL ~OF VERMONT YANKEE POSITION ON " FUS o '.i. -ISSUE RAISED BY I&E NOTICE 85-09 ? Ifr.'- '. e,. REVISE POST-FIRE OPERATING PROCEDURES CONSISTENT WITH Ill.G REPORT p i. DESIGiulNSTALL CABLE TRAY AND CONDUIT FIRE STOPS e "~ PRLCEDURIZE-IDENTIFICATION OF SAFE SHUTDOWN CIRCUITS S

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{' THAL DESIGN CANNOT BE MODIFIED WITHOUT REFERENCE TO FIRE, PROTECT'ON REQUIREMENTS y 1 WRITE REPORT DEMONSTRATING III.L COMPLIANCE e ..~. WRITE REPORT DEMONSTRATING Ill.A-F, Ill.H-K AND Ill.M-0 e COMPLIANCE r ASSEMBLE COMPLETE DOCUMENTATION PACKAGE AND RE-EVA!.U e [ OVERALL COMPLIANCE WITH APPENDIX R. o OBTAIN ISE APPROVAL FOLLOWING CLOSE0VT AUDIT i e l

UNCERTAINTIES WRR APPROVAL OF III.G EXEMPTIONS u L. CONTENT OF FINAL VERSION OF GL 85-01 o 18E APPROVAL OF VERMONT YANKEE POSIT o E .RESULTOFVERMONTYA'NKEEREVIEW0FOV o q gi-._ o ; SCHEDULE FOR IEE CLOSE00T AUDIT 5 ij F'. e "O P h 9}}

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