受限空间安全confined-space

Prsentedby:BenElisondoCSU/SETCSafetyTraining,ConfinedSpaceTraining,Permit-RequiredConfinedSpacesTitle8Sections5156-5159,ConfinedSpaceStatistics,LeadingcauseofoccupationalfatalitiesinthiscountryTheStandardcovers240,000workplacesand12.2millionworkersWorkersmake4.8millionentries/yearStandardmayprevent85%offatalitiesandnearly11,000injuries,DefinitionofaConfinedSpace(mustmeetallthreecriteria),Limitedmeansforentryorexit(manholes,vaults,Thepermitspacewillnotbecomeimmediatelydangeroustolifeandhealth(IDLH)ifthemechanicalventilationshouldfail.,AlternateEntryProcedures(cont),EntrySupervisorensuresspacehasbeenproperlyclassifiedUseguarding/cover/barriertopreventfalls(whenremovingcover)Lockout/tagoutallhazardousenergysourcesCompletelogTestforO2,flammablegases/vaporsandpotentialtoxicaircontaminantsSetupventilation(supplyairtakenfromcleansource)TheEntrantwillevacuatetheconfinedspaceifhe/shebecomesawareofanunrecognizedhazard,PermitRequiredEntryProcedures,EntrySupervisor,EntryAttendantandEntrantmustparticipateInspectandsetupsafetyequipmentEntrySupervisorestablishesspecificrescueproceduresLockandtagoutallhazardoussourcesofenergyUseguardingIfremovinganentrancecoverSampleandrecordairforhazardouscontaminantsEntrySupervisorcompletesPermitpriortoentry,PermitRequiredEntryProcedures(cont),AttendantverifiesacceptableentryconditionsEntrantwearsretrievalequipmentduringentireoperationAttendantcontinuouslymonitorsatmosphere&recordsreadingswiththeportablegasdetectorImmediatelyevacuatespaceifsafetyequipmentfailsorspacebecomesorhaspotentialtobecomeimmediatelyhazardousUponcompletion,EntrySupervisorcompletespermitandfiles,PotentialConfinedSpaceHazards,EngulfmentOxygendeficiency(19.5%orless)Oxygenenrichment(23.5%orhigher)FlammablegasesorvaporsCombustibledustsToxicsubstancesIDLHatmospheresPhysicalhazards,MonitoringConfinedSpaceAirQuality,Priortoenteringanyconfinedspace,preparethegasdetectorConducta“bumptest”.Breatheintothegasdetectorprobeandlookforadecreaseinoxygenconcentration-shouldalarmSampleairqualitybyslightlyremovinglidorthroughholeinlidbeforecompletelyopeningthespaceMonitorwithprobeslowlyatdifferentverticalheightsMeasureinthefollowingorder:Oxygen,LEL,H2S,CORecordresultsontheConfinedSpaceEntryPermitRecordSheet,MonitoringConfinedSpaceAirQuality(cont.),ThegasdetectormustbeonduringtheENTIREentryoperationWillberegularlyinspectedbytheAttendant.RecordgasreadingsataminimumofonehourintervalsCeaseentryoperationsandremoveentrypersonnelifthefollowingconcentrationsareexceededatanytime:Oxygenreadinglessthan19.5%orgreaterthan22.5%Combustiblegasreadinggreaterthan9%LELH2Sreadinggreaterthan9ppmCOreadinggreaterthan34ppm,VentilatingaConfinedSpace,Setuponeormoreblowerstoprovideadequateventilationforthespace.Ventilationmustbeforceddraftdischargeofcleanairintospace(notexhaustofspace)EnsureventilationairsupplyisfromcleansourceAllowenoughtimeforblowerstoclearthespacebeforeentering.Ensurethattheblowersremainonduringtheentireentryprocedure.Iftheblowerfails,theEntrantmustleavethespaceimmediatelyNote:thisappliestoboth“PermitRequired”and“AlternateEntry”procedures,TypesofPersonalProtectiveEquipment,ProtectiveclothingWeldingapron/sleevesRespiratorsGlovesSafetyglasses,RetrievalEquipment,Rescueharness(chestorfullbody)RescuetripodRopeorcable(inspectfordamage),DepartmentResponsibilities,EH&SEstablish&updatewrittenprogramprovidetrainingreviewrecords&provideconsultationPPM&CommunicationServicesEnsureallinvolvedemployeesreceivetraining&followproceduresprovideandmaintainequipmentmaintainrecords,EntrySupervisorResponsibilities,EnsureallpersonsinvolvedinaconfinedspaceentryareproperlytrainedEvaluateandclassifytheconfinedspacepriortoentryCompletetheConfinedSpaceEntryPermit(ifrequired)Ensurecanceledpermitsareproperlyfiled,EntrantResponsibilities,CompletedConfinedSpacetrainingMuststayinconstantcontactwiththeAttendant(I.e.sight,voice,orradio)duringaPermitRequiredConfinedSpaceentryUsetheappropriatesafetyequipmentasspecifiedontheEntryPermit,EntryAttendantResponsibilities,CompletedConfinedSpaceTrainingObtain&installrequiredsafetyequipmentforPermitRequiredConfinedSpaceentriesMonitorpedestrianbarrierstoprotectentrant(s)fromexternalhazardsMonitortheatmosphereduringtheentireentryoperationMustremaininpositionuntilrelievedbyanothertrainedAttendantEnsurealllockout/tagoutmeasures(ifimplemented)remaininplaceResponsiblefororderinganevacuationifasituationdevelopsthatcouldendangertheEntrant,RescuerResponsibilities,UnderstandthehazardsofthespaceAllrescuesattemptedbyCSUNpersonnelwillbeNon-EntryRescues(i.e.rescuerwillnotenterthespaceatanytimeduringrescue)RetrievalequipmentisrequiredforallPermitRequiredverticalentriesgreaterthan5feetBecertifiedinemergencyfirstaidandCPREntrySupervisormustdeterminehowemergencypersonnelwillbenotifiedUnderstandappropriateentryproceduresKnowhowtouserescueequipmentPracticeconfinedspacerescuesatleastannually,Training,AllCampusemployeeswhoparticipateinPermitRequiredorAlternateEntryProceduresincludingEntranceSupervisors,Attendants,andEntrants,mustreceivetrainingintherequirementsofthisprogramAllCampusemployeeswhoaredesignatedasrescuepersonnelmustbetrainedinproperrescu