ML18040A852
| ML18040A852 | |
| Person / Time | |
|---|---|
| Site: | Susquehanna  |
| Issue date: | 08/31/1987 |
| From: | DOBSON P H, GOULD J E, SHIELD W F FACTORY MUTUAL RESEARCH CORP. |
| To: | |
| Shared Package | |
| ML17146B007 | List: |
| References | |
| NUDOCS 8710230365 | |
| Download: ML18040A852 (7) | |
Text
TECHNICAL REPORTEUALUATION OFSELECTEDFIREDOORANDDOORFRAMEASSEMBLIES (SUPPLEMENT 4)byJeffreyE.GouldPreparedforPennsylvania PowerandLightCompanySusquehanna SteamElectricStationRoutellSalemTownship, Pennsylvania 15635August1987Reviewedby:W.F.Shield,Assistant ManagerMaterials Section(Codes/Ratings}
FMRCArovedby:8710230365 8710210,.Paw.AaOCV.-'0S000387
.,','8...',,"PDR,fP.H.DobsonSeniorEngineerFMRCFactoryMutualResearch1151Boston-P~idenceTurnpikeNorwood,Massachusetts 02062 00'L'4~J',rP
'leiA.)sACTORYMUTUALRESEARCHCORPORATABLEOFCONTENTSSectionTitle~PaeTABLEOFCONTENTSSUMMARYANDCONCLUSIONS IINTRODUCTION IIFIREDOORASSEMBLYEVALUATION iii12 TORYMUTUALRESEARCHCORPORATIO SUMMARYANDCONCLUSIONS Anevaluation ofselectedfiredoorsandframesprotecting safetyrelatedareaswasconducted forthePennsylvania PowerandLightCo.(PP&L)atSusquehanna SteamElectricStation,Units1&2.Thepurposeoftheevaluation wastoexaminecertainunlabeled doorassemblies andrenderanopinionontheirfireresistance ratingThisevaluation wasrequested byPP&Lasasupplement totheoriginalevaluation contained inaPactoryMutualreportdatedJanuary1985,Supplement 1datedAugust1985,Supplement 2datedJune1986andSupplement 3datedMay1987.Itwasconcluded thatthespecialpurpose(watertight)doorassemblies identified asDoors14,23and24shouldprovideaminimumofl-l/2hoursfireresistance.
I'l<>p~iACTORYMUTUALRESEARCHCORPORAIINTRODUCTION TheplantwasvisitedinJuly1987byL.J.Mattern,PMEA,LossPrevention Specialist.
Threedoorsandframeswereexaminedduringthisvisit.Theinformation gatheredduringthisexamination wasthenforwarded totheFMRCfApprovals Divisionforevaluation.
Theassemblies arelocatedinUnit1and2ReactorBuildings.
ThewriterisanEngineerintheApprovals DivisionofFactoryMutualandhas7yearsofexperience, primarily inthenuclearindustry.
Hisprimaryresponsibility istestinganddetermination offireresistance ofbuildingmaterials andfireratedassemblies.
(I(),t~lCTORYMUTUALRESEARCHCORPORATI IIFIREDOORASSEMBLYEVAULATIONS Threeunlabeled specialpurpose(watertight)firedoorassemblies wereexaminedduringthisvisittotheSusquehanna SteamElectricStationattherequestofthePennsylvania Power.andLightCompany(PPSL)2.1FIREDOORASSEMBLIES 2.1.1LocationThedoorsexaminedwerelocatedatElevation 645andwereidentified asDoors14,23and24.Door14separates Unit2,AandB,CoreSprayPumpRooms;Door23separates Unit1,AandB,RHRPumpRoomsandDoor24separates Unit2,AandB,RHRPumpRooms.2.1.2Construction Thethreedoorswereinspected andfoundtobeidentical tooneanother.Theymeasure3ftwidex7fthighandconsistofa1/4in.steelplatewith1in.x2in.x3/16in.steelchannel.Thereare2hingesweldedtothedoyzandframeprovidedwith5/8in.diameterpins.Eachdoorisequippedwith'C!twelvesteelbarlatchesoperatedbyacentermountedwheeltypeoperator.
Thelatchthrowsarel-l/4in.longandengagethe5/8in.thicksteelframeonthetop,bottomandsides.Thedoorsarerubbergasketedtomakeawaterproof sealwiththe5/8in.thicksteelframe.Doors23and24aremountedin36in.thickreinforced concretewalls.Door14ismountedina30in.thickreinforced concretewall.2.1.3Evaluation These3doorswerefoundtobeidentical toadoorwhichhadbeenpreviously evaluated bySamuelM.KnightofFactoryMutualResearchCorporation withconclusion contained inareportentitled"Evaluation ofSelectedFireDoorandDoorFrameAssemblies" datedJanuary1985.Thedoorpreviously evaluated isidentified asDoor13andreferenced inSection2.2,SpecialPurposeDoor,intheabovenotedreport.Theconclusion inthatreportisthatDoor13wouldprovideaminimumof1-1/2hoursoffireresistance 2.1.4Conclusion Doors14,23and24wouldprovideaminimumofl-l/2hoursfireresistance.
0Akvr~6i>p,~'iJI~~