ML17251A218: Difference between revisions

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==DearMr.Stahle:==
==DearMr.Stahle:==
AsapartoftheControlRoomDesignReview(CRDR),anextensivesoundlevelsurveyoftheGinnaControlRoomwasperformed.Theresultsofthestudyindicatedthatcertainalarmsystemsdidnot'fallwithintheguidelinesofNUREG-0700,thereby,requiringsystemmodifications.Thereferencedsubmittaldescribedthosemodifications,andothers,andcommitted.thatworkassociatedwithGinnaControlRoomalarmsystemswouldbecompletedbyJune30,1988.ThemodificationsweretochangecertainControlRoomalarmstoachievedistinguishablesoundlevelswhencomparedtotheannunciatoralarmwhichwastobethereference.Thereferencedletteralsostatedthattheannunciatoralarmlevelwasnot10dBAabovebackgroundlevelassuggested,bytheNUREG,butapproximately5dBAabovethebackgroundnoiselevel.RG&Ejustifiedleavingtheannunciatoralarmatthislevelsinceitwasadequatelydistinctiveandnon-irritatingwithinitsenvirons.Allotheralarmswouldthenbesetattherequired.+2.5dBA.oftheannunciator,alarmlevel.Allmodificationswerecompletedasscheduled,however,testingofthealarmsystemsscheduledforJune30wascancelledbecauseof.equipmentfailure.Subsequenttestsofthebackgroundsoundlevelindicateda1dBAincreaseintheleveloverthatoftheApril1987survey(initialsurvey)andconcurrentlyshowedthattheannunciatorsoundlevel'haddecreasedbelowtheinitialsurvey.Thesounddifferential,therefore,wasunacceptable.8808120}308SOS02PDRADGCK05000244PPDC Attemptstorestoretheexistingannunciatoralarmsystemstoanacceptablelevelhavebeenunsuccessful.Asaresult,RG&Ewilldesignandinstallanewadjustableannunciatoralarm.ThisalarmispresentlyscheduledtobeinstalledandallalarmsystemstestedbytheendofSeptember1988.Ifyouhaveanyconcernsorquestionsregardingthismatter,pleasecallCharlesJ.Mambretti(716)724-8071.Verytrulyyours,RobertC.MeredyGeneralManagerNuclearProductionxc:U.S.NuclearRegulatoryCommissionRegionI475AllendaleRoadKingofPrussia,PA19406GinnaSeniorResidentInspector  
AsapartoftheControlRoomDesignReview(CRDR),anextensivesoundlevelsurveyoftheGinnaControlRoomwasperformed.Theresultsofthestudyindicatedthatcertainalarmsystemsdidnot'fallwithintheguidelinesofNUREG-0700,thereby,requiringsystemmodifications.Thereferencedsubmittaldescribedthosemodifications,andothers,andcommitted.thatworkassociatedwithGinnaControlRoomalarmsystemswouldbecompletedbyJune30,1988.ThemodificationsweretochangecertainControlRoomalarmstoachievedistinguishablesoundlevelswhencomparedtotheannunciatoralarmwhichwastobethereference.Thereferencedletteralsostatedthattheannunciatoralarmlevelwasnot10dBAabovebackgroundlevelassuggested,bytheNUREG,butapproximately5dBAabovethebackgroundnoiselevel.RG&Ejustifiedleavingtheannunciatoralarmatthislevelsinceitwasadequatelydistinctiveandnon-irritatingwithinitsenvirons.Allotheralarmswouldthenbesetattherequired.+2.5dBA.oftheannunciator,alarmlevel.Allmodificationswerecompletedasscheduled,however,testingofthealarmsystemsscheduledforJune30wascancelledbecauseof.equipmentfailure.Subsequenttestsofthebackgroundsoundlevelindicateda1dBAincreaseintheleveloverthatoftheApril1987survey(initialsurvey)andconcurrentlyshowedthattheannunciatorsoundlevel'haddecreasedbelowtheinitialsurvey.Thesounddifferential,therefore,wasunacceptable.8808120}308SOS02PDRADGCK05000244PPDC Attemptstorestoretheexistingannunciatoralarmsystemstoanacceptablelevelhavebeenunsuccessful.Asaresult,RG&Ewilldesignandinstallanewadjustableannunciatoralarm.ThisalarmispresentlyscheduledtobeinstalledandallalarmsystemstestedbytheendofSeptember1988.Ifyouhaveanyconcernsorquestionsregardingthismatter,pleasecallCharlesJ.Mambretti(716)724-8071.Verytrulyyours,RobertC.MeredyGeneralManagerNuclearProductionxc:U.S.NuclearRegulatoryCommissionRegionI475AllendaleRoadKingofPrussia,PA19406GinnaSeniorResidentInspector  
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Revision as of 15:13, 18 May 2018

Discusses 870714 Crdr Supplemental Rept Re Alarm Sys.Results of Study Indicated That Certain Alarm Sys Did Not Fall within Guidelines of NUREG-0700 & Required Sys Mods.Alarms Currently Scheduled for Installation by Sept 1988
ML17251A218
Person / Time
Site: Ginna Constellation icon.png
Issue date: 08/02/1988
From: MECREDY R C
ROCHESTER GAS & ELECTRIC CORP.
To: STAHLE C
NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
RTR-NUREG-0700, RTR-NUREG-700 NUDOCS 8808120130
Download: ML17251A218 (4)


Text

itACCElZMTZDDISTRIBUTIONDEMONSTRATIONSYSTEMREGULATORYINFORMATIONDISTRIBUTIONSYSTEM(RIDS)ACCESSIONNBR:8808120130DOC.DATE:88/08/02NOTARIZED-NODOCKETgFACIL:50-244RobertEmmetGinnaNuclearPlant,Unit1,RochesterG05000244AUTH.NAMEAUTHORAFFILIATIONMECREDY,R.C.RochesterGas&ElectricCorp.RECIP.NAMERECIPIENTAFFILIATIONSTAHLE,C.DocumentControlBranch(DocumentControlDesk)

SUBJECT:

DiscussesCRDRalarmmods.DISTRIBUTIONCODE:A003DCOPIESRECEIVED:LTRIENCL0SIZE:TITLE:OR/LicensingSubmittal:Suppl1toNUREG-0737(GenericLtr82-NOTES:LicenseExpdateinaccordancewith10CFR2,2.109(9/19/72).3305000244RRECIPIENTIDCODE/NAMEPD1-3LASTAHLE,CINTERNAL:ARM/DAF/LFMBNUDOCS-ABSTRACTRES/DSIR/EIBEXTERNAL:LPDRNSICCOPIESLTTRENCLRECIPIENTIDCODE/NAMEPD1-3PDNRRPQ/HFB10~I01S/'DSTPl3PYNRCPDRCOPIESLTTRECL7DIDADTOTALNUMBEROFCOPIESREQUIRED:LTTR18ENCL (IIIIIIIIIIjIIIIIIIIIIIIiaaf0f>~ROCHESTERGASANDELECTRICCORPORATIONo89EASTAVENUE,ROCHESTER,N.Y.14649.0001August2,1988TKLKRNONKAREAcooK7i6546-2700U.S.NuclearRegulatoryCommissionDocumentControlDeskAttn:Mr.CarlStahlePWRProjectDirectorateNo.1Washington,D.C.20555

Subject:

ControlRoomDesignReview(CRDR)AlarmModificationsR.E.GinnaNuclearPowerPlantDocketNo.50-244

Reference:

GinnaCRDRSupplementalReportdatedJuly14,1987

DearMr.Stahle:

AsapartoftheControlRoomDesignReview(CRDR),anextensivesoundlevelsurveyoftheGinnaControlRoomwasperformed.Theresultsofthestudyindicatedthatcertainalarmsystemsdidnot'fallwithintheguidelinesofNUREG-0700,thereby,requiringsystemmodifications.Thereferencedsubmittaldescribedthosemodifications,andothers,andcommitted.thatworkassociatedwithGinnaControlRoomalarmsystemswouldbecompletedbyJune30,1988.ThemodificationsweretochangecertainControlRoomalarmstoachievedistinguishablesoundlevelswhencomparedtotheannunciatoralarmwhichwastobethereference.Thereferencedletteralsostatedthattheannunciatoralarmlevelwasnot10dBAabovebackgroundlevelassuggested,bytheNUREG,butapproximately5dBAabovethebackgroundnoiselevel.RG&Ejustifiedleavingtheannunciatoralarmatthislevelsinceitwasadequatelydistinctiveandnon-irritatingwithinitsenvirons.Allotheralarmswouldthenbesetattherequired.+2.5dBA.oftheannunciator,alarmlevel.Allmodificationswerecompletedasscheduled,however,testingofthealarmsystemsscheduledforJune30wascancelledbecauseof.equipmentfailure.Subsequenttestsofthebackgroundsoundlevelindicateda1dBAincreaseintheleveloverthatoftheApril1987survey(initialsurvey)andconcurrentlyshowedthattheannunciatorsoundlevel'haddecreasedbelowtheinitialsurvey.Thesounddifferential,therefore,wasunacceptable.8808120}308SOS02PDRADGCK05000244PPDC Attemptstorestoretheexistingannunciatoralarmsystemstoanacceptablelevelhavebeenunsuccessful.Asaresult,RG&Ewilldesignandinstallanewadjustableannunciatoralarm.ThisalarmispresentlyscheduledtobeinstalledandallalarmsystemstestedbytheendofSeptember1988.Ifyouhaveanyconcernsorquestionsregardingthismatter,pleasecallCharlesJ.Mambretti(716)724-8071.Verytrulyyours,RobertC.MeredyGeneralManagerNuclearProductionxc:U.S.NuclearRegulatoryCommissionRegionI475AllendaleRoadKingofPrussia,PA19406GinnaSeniorResidentInspector

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