WSH_GI-5_Scaffolding_350578_7.pdfVIP专享VIP免费原创优质

GIPart5PoweredPlatformsforBuildingMaintenanceComparedWith1910.66PoweredPlatformsforBuildingMaintenanceasofFebruary2018Summary:ThesignificantdifferencesbetweenGIPart5‘PoweredPlatformsforBuildingMaintenance’and1910.66PoweredPlatformsforBuildingMaintenancearein:InstallationsIntermittentstabilizationsystemsRoofcars;carriages;suspensionmethodsControlsandinterlocksSafetyfactorsWorkingplatformsInspectionsandtestsMaintenanceHoistingmachinesSuspensionwireropemaintenance;inspectionandreplacementFiberropemaintenance;inspectionandreplacementSyntheticropemaintenance;inspectionandreplacementThecomparisonsshowonlythoseprovisionswhereMIOSHArulesaredifferentthanOSHAorwhereMIOSHArulesarenotincludedin29C.F.R.****meansthereisacomparableOSHAruletothisparagraphMIOSHAOSHAR408.10561.Installations.Rule561.(1)Apoweredplatforminstalled,orthatpartofapoweredplatformmodified,afterAugust27,1971,shallbeincompliancewiththedesignandmanufacturingrequirementsprescribedinANSIA120.1,“SafetyRequirementsforPoweredPlatformsforExteriorBuildingMaintenance,”1970edition,asadoptedinR408.10509,andasfurtherprescribedintherulesofthisstandard.NocomparableOSHAprovisions(2)to(3)****EquivalentR408.10562.Intermittentstabilizationsystems.Rule562.(1)to(7)****Equivalent(8)Apoweredplatformshallbesuspendedby2ormorecables.Where2cablesareused,eachemployeeontheworkplatformshalluseasafetyharnessandlanyardthatisattachedtoanindividuallifeline.Thelifelineshallbesecuredtothebuildingstructureandshallbeindependentofanycableandstructuresthatsupportthepoweredplatform.NocomparableOSHAprovisions(9)****Equivalent(10)Wherethrustoutsareusedinplaceofaroofcar,theyshallbeanchoredtothebuildingstructurewithfastenersthatarecapableofsustainingtheimposedload.NocomparableOSHAprovisionsPage2of6MIOSHAOSHAR408.10565.Roofcars;carriages;suspensionmethods.Rule565.(1)Aroofcarshallbeusedwhenitisnecessarytomoveaworkingplatformhorizontallytoaworkorstorageposition.NocomparableOSHAprovisions(2)Movementsofaroofcarshallberestrictedtoadesignatedpathoftravel.Mechanicalstopsshallbeprovidedandshallpreventtheroofcarfromtraversingoutsidetheintendedpathoftravel.Thestopsshallbecapableofwithstandingaforceequalto100%oftheinertialeffectoftheroofcarunderpowerandshallbedesignedtopreventacrushingorshearinghazard.(3)Elevatedbuildingmaintenanceequipmentshallbesuspendedbyaroofcar,carriage,outrigger,davits,oranequivalentmethod.(4)Carriagesorroofcarsshallbeincompliancewithallofthefollowingprovisions:(a)Thehorizontalmovementofacarriageshallbecontrolledtoensureitssafemovementandallowaccuratepositioningoftheplatformforverticaltravelorstorage.(b)Poweredcarriagesshallnotexceedatraversingspeedof50feetperminute(0.3ms).(c)Theinitiationofatraversingmovementforamanuallypropelledcarriageonasmoothlevelsurfaceshallnotrequireapersontoexertahorizontalforceofmorethan40pounds(444.8n).(d)Structuralstopsandcurbsshallbeprovidedtopreventthetraversingofthecarriagebeyonditsdesignedlimitsoftravel.(e)Traversingcontrolsforapoweredcarriageshallbeofacontinuouspressureweatherprooftype.Multiplecontrols,whenprovided,shallbearrangedtopermitoperationfromonly1controlstationatatime.Anemergencystopdeviceshallbeprovidedoneachendofapoweredcarriageforinterruptingpowertothecarriagedrivemotors.R408.10565(4)(f)Theoperatingcontrolorcontrolsshallbeconnectedsothat,inthecaseofsuspendedequipment,traversi...