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Lockout Tagout LO TO Training PreparedbyCOPCHSETeam Singapore Introduction Lockoutisatechniquethatpreventsequipmentfrombeingstartedorpreventsstoredenergyfromreleasedwhilesomeoneisrepairingorperformingmaintenanceworkontheequipment Apadlockisplacedonadisconnectswitch circuitbreaker valvehandleorotherenergy isolatingmechanismthatisintheofforOpen Closedposition Objectives IdentifyhazardousenergysourcesintheworkplaceDefinevariouslocksandtagsusedtoisolateenergysourcesSelectappropriatemeanstoisolateandcontrolenergysourcesApplyenergyisolationcontrolsRemovalofLockout Describetheproceduresforconductingalockout tagout Topics Definitions LOTOEnergySourcesCausesofLOTOinjuriesTypesofLOTOdevicesRequirementsofLOTOdevicesTagging StickersLOTOprocedures SequencesIsolationMethodologyReleasefromLOTOEmergencylockremovalproceduresConclusion WhatIsLockout Tagout ReferredtoasLOTOBlockstheflowofenergyfrompowersourcetotheequipmentProvidesmeansofwarning Tag WhyweuseLOTO ProtectPeople EquipmentandtheEnvironment PositiveisolationofhazardousenergysourcesDefinesresponsibilities taskandworklocation Communication documentationandtracking Undermulti disciplinecontrol Operations MechanicalandE IConsistencyinapplication WhenMustLOTOBeUsed HazardousenergyexistsUnexpectedstart upcouldoccurEmployeesareexposedtohazardousenergyEquipmentisbeingservicedormaintainedduringnormalproductionoperations SafetyDevicesormachineguardsareremoved Thepotentialexiststobeinthe lineoffire ofanaccidentalreleaseofenergy HYDRAULICPNEUMATICMECHANICALRADIOACTIVETHERMALELECTRICALCHEMICALGRAVITY EnergySources The FatalFive MainCausesofLockout TagoutInjuries FailuretostopequipmentFailuretodisconnectfrompowersourceFailuretodissipate bleed neutralize residualenergyAccidentalrestartingofequipmentFailuretoclearworkareabeforerestarting CausesofLOTOInjuries TypesofLOTODevices LocksBlocksChainsMulti lockhaspsWheelvalvecoversBallvalvecoversTagsLockoutboard s Breakerclips RequirementsforLOTODevices Theymustbe Durable towithstandtheenvironmentUnique indistinction visibilitySubstantial durabilityforlockandtagtominimizeaccidentalremoval Identifiable tobeincludedidentification authorizationofthepersonforapplyingthedevice Standardised incolor shape sizetypeorformat LocksandKeys AlllockingdevicestobeusedunderLOTOprocedureshallhaveuniqueindividualkeys Thereshallbenomasterkeywhichcanbeusedtoopenmanylocks Likewise thereshallnotbemorethanoneaccessiblekeyforeachindividuallock LocksspeciallydesignatedforuseinthelockoutprocedureshallbeprovidedbyCommissioningTeam Eachlockandkeyshallbestamped markedinordertoidentifythem Theyshallbeassignedindividualnumbers Lockedboxes keysafescontaininglockandkeysets isolationtags multiplelockdevisesshallbelocatedwithintheCommissioningPermitCoordinatorOffice LocksandTags IfadeviceisprotectingmorethanoneEnergyIsolationAttachseparatelocksandtagsforeachisolation MotorControlCenter RemovableHandle ValveWheel Pump Job1 Job2 Multilock TheAuthorizedPersonwillbetheSinglePointofContactforfinalapprovalofLO TOWhenmorethanonetradeisworkingonapieceofequipmentthatneedstobeisolated aMULTI LOCKhaspshallbeusedtoalloweachtradetofittheirownlocks TheLOCKOUTTAGshallalwaysbeconnectedtotheisolationpoints padlocksandremovedwhenthelastpadlockisremoved ThereshallbeoneLOCKOUTtagforeachpadlock Tagging CP ISOLATIONS Tag DONOTOPERATETag CPIsolationTagsareusedtoidentifyallisolations de isolationsperformedinconjunctionwiththeissuingofaCommissioningPermitotherthanEnergizedEquipmentLimitIsolations CPIsolationTagsareattachedtoandsubsequentlyremovedfromallisolationpointsbyAEE ATE AME AMPorpersonauthorizedtoperformmechanicalisolations Theoperationormovementofanyswitch valve equipmentorcontrolcircuitisprohibitedwhenthereisaCPIsolationTagattachedtoit EachtagmusthaverelevantIsolations Inhibits SpadeListno writtenonit CircuitEarth Tag CircuitEarth Tagplacedonequipmentthathasbeenisolatedandearthedviaanearthswitchorviatemporaryearthingcables ThetagwillcarrytheCommissioningPermittoWorkandIsolationCertificatenumbersandwillbedatedandsignedbyaAEE Thetagwillbetiedatthepointofaccesstotheearthswitch OutOfService Tags Outofservicetagsareusedto Identify EnergizedEquipmentLimitIsolations Ensureprotectionofequipmentortoplacefaultyorsubstandardequipmentoutofnormalservice Identifyvalvesorswitcheswhichareatthelimitsofenergizationandshouldnotbeoperatedforprocessormechanicalreasons AllsectionsofanOutofServiceTagmustbecompletedbythepersonattachingthetag ThetagmayonlyberemovedifaCommissioningPermithasbeenissuedtoallowforitsremovalandtheHolderofthatCommissioningPermithasspeciallyaskedforittoberemoved TagsAreOnlyCommunicationandWarningDevices TagsMustBeSecurelyAttached TagsDoNotProvidePhysicalRestraint TagsMustNeverBeDefeatedorIgnored MustWithstandEnvironmentalConditions TagsMustBeLegibleandUnderstandable TagsAreOnlyRemovedbytheResponsiblePerson SomeKeyPointsAboutTags Commissioning Sticker CommissioningStickermaybefixedtoanyitemofequipmentthathasbeenhandedovertoandacceptedbytheCT ApersonshallnotdoanyworkofanydescriptiononanypieceofequipmentidentifiedinthismannerunlesstheyhavefirstobtainedaCommissioningPermitforthatparticularwork DangerEnergised Sticker DangerEnergised Stickersarefixedtoelectricalswitchgear starters distributionboards motorsandsimilarequipmenttoallpersonnelthattheitemhasbeenhandedovertoandacceptedbytheCT TemporaryLink Sticker TemporaryLink Stickersarefixedtohardwiredlinksinstalled removedandrelaysremovedorjumperedforPre commissioning Commissioning TheCPreference TemporaryLinkregisterReferenceistobewrittenandstickeristobesignedanddatedfortrackingpurpose Commissioning Sticker LiveLine Sticker LiveLine StickersareusedtoidentifypipelinesandmechanicalequipmentthathasbeenhandedovertoandacceptedbytheCTandmightbepressurised filledwithliquid ApersonshallnotdoanyworkofanydescriptiononanypipeorpieceofequipmentidentifiedinthismannerunlesstheyhavefirstobtainedaCommissioningPermitforthatparticularwork LOTOStickerSample PreparationofLOTOProcedure Authorizedpersonnelwillidentifytheequipmentandlockoutdevices PreparationbasedontheproceduresIsolationofenergysourcesAttachmentofLockoutDevicesandTagsControlofStoredEnergy Releaseofstoredenergy EquipmentIsolation Verification SequenceofLOTOProcedures ApplyforCommissioningPermit CP thrutheCommissioningPermitCoordinationoffice CommissioningPermitCoordinatorwillnotifytherelevantauthorizedpersonneltocarryouttheisolation PriortoconductLOTO anIsolation Spade Inhibitlistmustbecompletedindicatingwhichitemsaretobeisolated meansofisolation locknumbersandwhoareauthorizedpersontocarryouttheseisolation Isolationcertificate s Isolationlistmustberaisedbyauthorizedpersons whocaneithercarryouttheisolation ordelegatetootherauthorizedpersonstodothejob Ifthemachineorequipmenttobeisolatedisoperating itwillbestoppedbythenormalstopprocedures depressstopbutton closetoggleswitch etc 4 ThemachineorequipmentcannowbesafelylockedoutandTaggedoutbyauthorizedpersonperformingtheisolation Alllock KeydetailsshallbeaddedtotheIsolationcertificateorIsolation Spade InhibitList Allelectricalequipmentisolationswillbeverified confirmedsafewithanapprovedandcalibratedmeter Storedenergy suchasthatinsprings elevatedmachinemembers rotatingflywheels hydraulicsystems etc mustbedissipatedbymethodssuchasrepositioning blocking bleedingdown etc Theauthorizedpersonnelshalloperatetheswitchorthenormaloperatingcontrolstoverifythattheequipmentwillnotoperateandensuredisconnections Authorizedpersonperformingisolationorde isolationmustsignanddatetheisolationcertificateorisolationlisttoconfirmtheisolationisinplace SequenceofLOTOProceduresCont Uponcompletionoftheisolation theisolationcertificate list thekeys andorfuse etcshallbereturnedtotheCommissioningPermitCoordinationOffice Whenisolationshavebeencompletedandpropercross referencemadetocommissioningpermit s theisolationcertificate listandanyattachedsupportdocumentation e g markedupdrawings includingthekey fuseetcmustbekeptinsidethedesignatedlockedboxintheCommissioningPermitCoordinationOffice Theequipmentisnowdeemedlockedout taggedoutanditissafefortherequiredactivitytocommenceundertheCPTWsystem SequenceofLOTOProceduresCont LO TORegister LOTOnumberPermitnumberSystem sub systemnumberEquipmentdescriptionTagnumberSwitchboard DistributionBoardnumberCub CircuitnumberSLDorP IDLocationLocknumberIsolationauthorityDateofIsolationappliedfor removed IsolationMethodology InitialissueofIsolations InitialissueofisolationwillbecarriedoutbyAuthorisedPersonnelwhetheritbeElectrical Mechanical ProcessorInstrumentation TheseisolationswillbecontrolledandstoredbytheCommissioningPermitCoordinatorintheCommissioningPermitCoordinationOffice Isolationswillberecordedondocumentssuchas IsolationcertificatesIsolations Inhibits SpadesListOtherrelevantinformation ssuchasTagnumber Location CPnumber SignatureanddateoftheAuthorisedpersonwhoappliedtheisolation EnergisedEquipmentLimitIsolations TheIsolation Inhibits SpadesListdrawnupinpreparationfortheissuingoftheCommissioningPermitmustincludetheisolationsrequiredatthe limits oftheintendedenergisation TheseisolationswillbeidentifiedonthelistabovementionedasEnergisedlimitIsolations Whentheseisolationsareinstalledtheywillbelocked wheneverpossible andwillhaveacompletedOutofServiceTagattachedtothem TheworkscopeoftheCommissioningPermitraisedforenergisationwillincludetheremovaloftheOutofserviceTagandlockfromthepre existing EnergisedEquipmentIsolation point whichuntilthistimehadbeenatthelimitofthepreviousisolation IsolationMethodologycont ElectricalIsolations AllelectricalIsolationwillonlybeperformedbyanAEEorATE ThepointofisolationwillbetaggedusinganIsolationTagandwhereeverpossible theisolationpointwillalsobelocked EachisolationpointwillberecordedontheIsolation Inhibits SpadesListoronHVisolationCertificatefortheparticularCommissioningPermit Workon live electricalsystemfortestingorfaultfindingisconfinedtoAEE sandATE sonlyandmustbespecificallystatedontheCommissioningPermit IsolationMethodologycont IsolationsforEnergisation Outgoingcircuitsthathaveneverbeenenergised commissionedshallbelockedandtaggedOutofService KeysfromthepadlocksfortheseisolationsshallbecontrolledandheldwithintheCommissioningPermitCoordinationOfficeindesignatedlockableboxes WhensuchanoutgoingcircuitistobeenergisedaCommissioningPermitmustberaisedinordertoallowtheenergisationtooccur Inadditiona Livening upNotice mustbeissuedbeforetheenergisationtakesplace AcopyoftheLivening upNoticewillbeattachedtotheCommissioningPermit IsolationMethodologycont HighVoltage HV Isolations AllHVIsolationsshallbeperformedbyAEEwiththeassistanceofATE TheHVcircuitbreakercubiclemustbewithdrawntotheisolatedpositionandlockedwithapadlockinthatposition Thecircuitearthswitchmustbeappliedandlockedwithapadlock EachpadlockshallbeaccompaniedbyaCPIsolationTag Considerationmustbegiventootherpotentialsourcesofsupply ThecopyoftheHVelectricalIsolationcertificatewillbeattachedtoandissuedwiththeworksitecopyoftheCP Allprecautionsnecessarytoensuretheisolationisperformedandtheequipmentis dead andconnectedtoeartharetheresponsibilityoftheAEE WhenCPinvolvingHVisolationsisnolongerrequiredtheworksitecopyoftheCPwillbereturnedtotheCPCtogetherwiththeworksitecopyoftheHVElectricalIsolationCertificate IsolationMethodologycont LowVoltage LV Isolations LVIsolationsmaybeperformedbyAEEoranATE Circuitbreakers Startersmustbewithdrawntotheisolatedpositionandlockedwithapadlock EachpadlockshallbeaccompaniedbyaCPIsolationTag WheretheprovisionofpadlockisnotavailablethenPowercableswillberemovedandtagged Considerationmustbegiventootherpotentialsourcesofenergy AllpointsofisolationmustberecordedontheIsolation Inhibits SpadesList WhenCPinvolvingLVisolationsisnolongerrequiredtheworksitecopyoftheCPwillbereturnedtotheCPofficeandbothcopiesoftheCPwillbesignedoffbytheCPHolder IsolationMethodologycont SanctionforTest ThepurposeoftheSanctionfortestistoallowtestingofElectricalEquipmentwithouttheneedtosignoffandthenreapplythesameisolationuntilsuchtimeastheequipmentisverifiedfitforservice ASanctionforTestshallbeissuedbyanAuthorisedElectricalEngineer AEE FulldetailsoftheequipmentbeingrequestedtobetestedshallbeincludedontheSanctionforTestincludingtagnumber isolationcertificatereferencedetailsandkeynumber s Thereshallalsobeprovisionforasignature dateandtimeforeachde isolationandisolation OncetheCommissioningPermitCoordinatorissatisfiedwiththeinformationprovided he shewillvalidatetheSanctionforTestcertificateandissuetheCommissioningPermittoallowthetestingtoproceed IsolationMethodologycont SanctionforTestcont TheAuthorisedElectricalEngineer HV LV orAuthorisedTrainedElectrician LVonly inchargeofthetestingshallreadandfullyunderstanditscontentsoftheSanctionforTestandshallonlythensigntheacceptancesection Oncompletionoftest theAuthorisedElectricalPerson AEEorATE shallsigntheSanctionforTestinthecompletionsectionindicatingthatallpersonnelhavebeenwithdrawn Testingengineerwillensurethatalltoolsandtestequipmenthavebeenremovedandtheworksiteisinasafeandtidystate Heshallalsoverifythatallisolations locks safetynoticeshavebeenre instatedandthekeysreturnedtotheCPC IsolationMethodologycont Instrument SafetySystemIsolations AllInstrumentandSafetySystemisolationswillbeperformedbytheAuthorisedInstrumentEngineeroranAuthorisedInstrumentPerson ThepointofisolationwillbeidentifiedusingaCommissioningPermitIsolationTagoraTemporaryLinksticker EachisolationpointwillberecordedontheIsolations Inhibits SpadesListfortheparticularCommissioningPermit ThecommonmethodsofInstrument SafetySystemisolationareeitheroneofthefollowing InstallationoftemporarylinksRemovalofcablesRemovalorJumperingtherelaysSoftwareforces IsolationMethodologycont MechanicalIsolations AllmechanicalisolationswillbeperformedbytheAuthorisedMechanicalEngineeroranAuthorisedMechanicalPerson ThepointofisolationwillbetaggedusinganIsolationTagandwhenvalvesareusedasapartofisolationtheywillbelockedwhereverpossible EachisolationpointwillberecordedontheIsolations Inhibits SpadesListfortheparticularCommissioningPermit Theapprovedmethodsofpipingisolationareeitheroneofthefollowing Insertionofablankspadeataflangedjoint reversingthespectacleblind ValvelockandTagRemovalofaspoolpieceDoubleblockandbleed LockandTag IsolationMethodologycont MasterIsolations MasterIsolationsLockoutiswhenlocksareappliedtoenergy isolatingdevicesformultipletasksofserviceormaintenancearebeingperformedbydifferentcrafts and orcontractorsinaspecificlocationoroveralargegeographicalarea MasterisolationsareanalternativemethodofisolationfortheBohaiBayFPSO incaseswheremultiplepermitactivitiesareongoingunderthesameisolation IndividualcommissioningPermitscanbeloggedagainsttheMasterIsolationandsignedON OFFwhencomplete IsolationMethodologycont MasterIsolationList MasterIsolationListmustbecompletedandcrossreferencedonthePTWResponsiblePersonshallensurethatthenecessaryisolationdocumentationisraisedandisolationscompletebeforeapprovalbytheAuthorizedPerson COPC ThereisonlyoneAuthorizedPersononLO TOissues noother CompetentpersonnelmaybedelegatedbytheResponsiblePersontoperformtheactualisolationbutverificationshallbebytheResponsiblePersonbeforeapprovedbytheauthorizedpersonThepersonperformingtheisolationshallcompleteandfittheIsolationLockandTagattheisolationpoint IsolationMethodologycont MasterIsolationList LongTermIsolation LTI LongTermIsolationsareisolationswhicharerequiredtoremaininplacealthoughnoworkisbeingcarriedoutwithintheirboundary Thesemayberequiredfortwomainreasons Whereworkhasstartedbutis orislikelytobe suspendedforaperiodexceedingtheValidityPeriodoftheCommissioningPermit forexample whenawaitingsparesforarepair Whenanitemofequipmentbecomesredundantandistobeisolatedpendingitsremovalortheprovisionofapermanentmeansofisolation WhenworkcannotberestartedwithinthevalidityperiodoftheCommissioningpermit orwhenitisdecidedthatisolationwillbeofpermanentnature isolationisretainedunderLongtermIsolation IsolationMethodologycont Isolations ThekeystotheseisolationsareheldinthePTWOffice WhenasystemishandedovertoCommissioning theequipmentwillbemadesafe lockedandtaggedout Allthekeysarekeptinthekeycabinets Whenanisolationisrequired thek
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