1910147原文上锁挂牌.docx
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1910147原文上锁挂牌.docx
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1910147原文上锁挂牌
•PartNumber:
1910
•PartTitle:
OccupationalSafetyandHealthStandards
•Subpart:
J
•SubpartTitle:
GeneralEnvironmentalControls
•StandardNumber:
1910.147
•Title:
Thecontrolofhazardousenergy(lockout/tagout).
•Appendix:
A
•GPOSource:
e-CFR
1910.147(a)
Scope,application,andpurpose—
1910.147(a)
(1)
Scope
1910.147(a)
(1)(i)
Thisstandardcoverstheservicingandmaintenanceofmachinesandequipmentinwhichtheunexpectedenergizationorstartupofthemachinesorequipment,orreleaseofstoredenergy,couldharmemployees.Thisstandardestablishesminimumperformancerequirementsforthecontrolofsuchhazardousenergy.
1910.147(a)
(1)(ii)
Thisstandarddoesnotcoverthefollowing:
1910.147(a)
(1)(ii)(A)
Constructionandagricultureemployment;
1910.147(a)
(1)(ii)(B)
Employmentcoveredbyparts1915,1917,and1918ofthistitle;
1910.147(a)
(1)(ii)(C)
Installationsundertheexclusivecontrolofelectricutilitiesforthepurposeofpowergeneration,transmissionanddistribution,includingrelatedequipmentforcommunicationormetering;
1910.147(a)
(1)(ii)(D)
Exposuretoelectricalhazardsfromworkon,near,orwithconductorsorequipmentinelectric-utilizationinstallations,whichiscoveredbysubpartSofthispart;and
1910.147(a)
(1)(ii)(E)
Oilandgaswelldrillingandservicing.
1910.147(a)
(2)
Application.
1910.147(a)
(2)(i)
Thisstandardappliestothecontrolofenergyduringservicingand/ormaintenanceofmachinesandequipment.
1910.147(a)
(2)(ii)
Normalproductionoperationsarenotcoveredbythisstandard(SeeSubpartOofthisPart).Servicingand/ormaintenancewhichtakesplaceduringnormalproductionoperationsiscoveredbythisstandardonlyif:
1910.147(a)
(2)(ii)(A)
Anemployeeisrequiredtoremoveorbypassaguardorothersafetydevice;or
1910.147(a)
(2)(ii)(B)
Anemployeeisrequiredtoplaceanypartofhisorherbodyintoanareaonamachineorpieceofequipmentwhereworkisactuallyperformeduponthematerialbeingprocessed(pointofoperation)orwhereanassociateddangerzoneexistsduringamachineoperatingcycle.
Note:
Exceptiontoparagraph(a)
(2)(ii):
Minortoolchangesandadjustments,andotherminorservicingactivities,whichtakeplaceduringnormalproductionoperations,arenotcoveredbythisstandardiftheyareroutine,repetitive,andintegraltotheuseoftheequipmentforproduction,providedthattheworkisperformedusingalternativemeasureswhichprovideeffectiveprotection(SeeSubpartOofthisPart).
1910.147(a)
(2)(iii)
Thisstandarddoesnotapplytothefollowing:
1910.147(a)
(2)(iii)(A)
Workoncordandplugconnectedelectricequipmentforwhichexposuretothehazardsofunexpectedenergizationorstartupoftheequipmentiscontrolledbytheunpluggingoftheequipmentfromtheenergysourceandbytheplugbeingundertheexclusivecontroloftheemployeeperformingtheservicingormaintenance.
1910.147(a)
(2)(iii)(B)
Hottapoperationsinvolvingtransmissionanddistributionsystemsforsubstancessuchasgas,steam,waterorpetroleumproductswhentheyareperformedonpressurizedpipelines,providedthattheemployerdemonstratesthat-
1910.147(a)
(2)(iii)(B)
(1)
continuityofisessential;
1910.147(a)
(2)(iii)(B)
(2)
shutdownofthesystemisimpractical;and
1910.147(a)
(2)(iii)(B)(3)
documentedproceduresarefollowed,andspecialequipmentisusedwhichwillprovideproveneffectiveprotectionforemployees.
1910.147(a)(3)
Purpose.
1910.147(a)(3)(i)
Thissectionrequiresemployerstoestablishaprogramandutilizeproceduresforaffixingappropriatelockoutdevicesortagoutdevicestoenergyisolatingdevices,andtootherwisedisablemachinesorequipmenttopreventunexpectedenergization,startuporreleaseofstoredenergyinordertopreventinjurytoemployees.
1910.147(a)(3)(ii)
Whenotherstandardsinthispartrequiretheuseoflockoutortagout,theyshallbeusedandsupplementedbytheproceduralandtrainingrequirementsofthissection.
1910.147(b)
Definitionsapplicabletothissection.
Affectedemployee.Anemployeewhosejobrequireshim/hertooperateoruseamachineorequipmentonwhichservicingormaintenanceisbeingperformedunderlockoutortagout,orwhosejobrequireshim/hertoworkinanareainwhichsuchservicingormaintenanceisbeingperformed.
Authorizedemployee.Apersonwholocksoutortagsoutmachinesorequipmentinordertoperformservicingormaintenanceonthatmachineorequipment.Anaffectedemployeebecomesanauthorizedemployeewhenthatemployee'sdutiesincludeperformingservicingormaintenancecoveredunderthissection.
Capableofbeinglockedout.Anenergyisolatingdeviceiscapableofbeinglockedoutifithasahasporothermeansofattachmenttowhich,orthroughwhich,alockcanbeaffixed,orithasalockingmechanismbuiltintoit.Otherenergyisolatingdevicesarecapableofbeinglockedout,iflockoutcanbeachievedwithouttheneedtodismantle,rebuild,orreplacetheenergyisolatingdeviceorpermanentlyalteritsenergycontrolcapability.
Energized.Connectedtoanenergysourceorcontainingresidualorstoredenergy.
Energyisolatingdevice.Amechanicaldevicethatphysicallypreventsthetransmissionorreleaseofenergy,includingbutnotlimitedtothefollowing:
Amanuallyoperatedelectricalcircuitbreaker;adisconnectswitch;amanuallyoperatedswitchbywhichtheconductorsofacircuitcanbedisconnectedfromallungroundedsupplyconductors,and,inaddition,nopolecanbeoperatedindependently;alinevalve;ablock;andanysimilardeviceusedtoblockorisolateenergy.Pushbuttons,selectorswitchesandothercontrolcircuittypedevicesarenotenergyisolatingdevices.
Energysource.Anysourceofelectrical,mechanical,hydraulic,pneumatic,chemical,thermal,orotherenergy.
Hottap.Aprocedureusedintherepair,maintenanceandsactivitieswhichinvolvesweldingonapieceofequipment(pipelines,vesselsortanks)underpressure,inordertoinstallconnectionsorappurtenances.itiscommonlyusedtoreplaceoraddsectionsofpipelinewithouttheinterruptionofforair,gas,water,steam,andpetrochemicaldistributionsystems.
Lockout.Theplacementofalockoutdeviceonanenergyisolatingdevice,inaccordancewithanestablishedprocedure,ensuringthattheenergyisolatingdeviceandtheequipmentbeingcontrolledcannotbeoperateduntilthelockoutdeviceisremoved.
Lockoutdevice.Adevicethatutilizesapositivemeanssuchasalock,eitherkeyorcombinationtype,toholdanenergyisolatingdeviceinthesafepositionandpreventtheenergizingofamachineorequipment.Includedareblankflangesandboltedslipblinds.
Normalproductionoperations.Theutilizationofamachineorequipmenttoperformitsintendedproductionfunction.
Servicingand/ormaintenance.Workplaceactivitiessuchasconstructing,installing,settingup,adjusting,inspecting,modifying,andmaintainingand/orservicingmachinesorequipment.Theseactivitiesincludelubrication,cleaningorunjammingofmachinesorequipmentandmakingadjustmentsortoolchanges,wheretheemployeemaybeexposedtothe unexpected energizationorstartupoftheequipmentorreleaseofhazardousenergy.
Settingup.Anyworkperformedtoprepareamachineorequipmenttoperformitsnormalproductionoperation.
Tagout.Theplacementofatagoutdeviceonanenergyisolatingdevice,inaccordancewithanestablishedprocedure,toindicatethattheenergyisolatingdeviceandtheequipmentbeingcontrolledmaynotbeoperateduntilthetagoutdeviceisremoved.
Tagoutdevice.Aprominentwarningdevice,suchasatagandameansofattachment,whichcanbesecurelyfastenedtoanenergyisolatingdeviceinaccordancewithanestablishedprocedure,toindicatethattheenergyisolatingdeviceandtheequipmentbeingcontrolledmaynotbeoperateduntilthetagoutdeviceisremoved.
1910.147(c)
General -
1910.147(c)
(1)
Energycontrolprogram.Theemployershallestablishaprogramconsistingofenergycontrolprocedures,employeetrainingandperiodicinspectionstoensurethatbeforeanyemployeeperformsanyservicingormaintenanceonamachineorequipmentwheretheunexpectedenergizing,startuporreleaseofstoredenergycouldoccurandcauseinjury,themachineorequipmentshallbeisolatedfromtheenergysourceandrenderedinoperative.
1910.147(c)
(2)
Lockout/tagout.
1910.147(c)
(2)(i)
Ifanenergyisolatingdeviceisnotcapableofbeinglockedout,theemployer'senergycontrolprogramunderparagraph(c)
(1)ofthissectionshallutilizeatagoutsystem.
1910.147(c)
(2)(ii)
Ifanenergyisolatingdeviceiscapableofbeinglockedout,theemployer'senergycontrolprogramunderparagraph(c)
(1)ofthissectionshallutilizelockout,unlesstheemployercandemonstratethattheutilizationofatagoutsystemwillprovidefullemployeeprotectionassetforthinparagraph(c)(3)ofthissection.
1910.147(c)
(2)(iii)
AfterJanuary2,1990,wheneverreplacementormajorrepair,renovationormodificationofamachineorequipmentisperformed,andwhenevernewmachinesorequipmentareinstalled,energyisolatingdevicesforsuchmachineorequipmentshallbedesignedtoacceptalockoutdevice.
1910.147(c)(3)
Fullemployeeprotection.
1910.147(c)(3)(i)
Whenatagoutdeviceisusedonanenergyisolatingdevicewhichiscapableofbeinglockedout,thetagoutdeviceshallbeattachedatthesamelocationthatthelockoutdevicewouldhavebeenattached,andtheemployershalldemonstratethatthetagoutprogramwillprovidealevelofsafetyequivalenttothatobtainedbyusingalockoutprogram.
1910.147(c)(3)(ii)
Indemonstratingthataleve
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