起重安全培训全英文版.ppt

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1、Cranes1OSHAOfficeofTraining&EducationMajorCausesofCraneAccidentsContactwithpowerlinesOverturnsFallsMechanicalfailures2OSHAOfficeofTraining&EducationInstability–unsecuredload,loadcapacityexceeded,orgroundnotlevelortoosoftLackofcommunication-thepointofoperationisadistancefromthecraneoperatorornotin

2、fullviewoftheoperatorLackoftrainingInadequatemaintenanceorinspectionHowDoAccidentsOccur?3OSHAOfficeofTraining&EducationWhoisatRiskOperatorsPersonsatCraneSite4OSHAOfficeofTraining&EducationDefinitionsCrane–ConsistsofarotatingstructureforliftingandloweringhorizontallyonrubbertiresorcrawlertreadsHoi

3、st-Usedtoliftandlowerload.Boom–Aninclinedspar,strut,orotherlongmembersupportingthehoistingtackleBoomstops–AdeviceusedtolimittheangleoftheboomatitshighestpositionBrake–TosloworstopmotionbyfrictionorpowerBlock–Sheavesorgroovedpulleysinaframewithhook,eyeandstrapJib–Extensionattachedtotheboompointtop

4、rovideaddedboomlengthforliftingspecifiedloads.5OSHAOfficeofTraining&EducationCraneParts6OSHAOfficeofTraining&EducationTypesofCranesMobileHydraulicOverheadGantryTower7OSHAOfficeofTraining&EducationImproperloadratingExcessivespeedsNohandsignalsInadequateinspectionandmaintenanceUnguardedpartsUnguard

5、edswingradiusCraneHazardsWorkingtooclosetopowerlinesImproperexhaustsystemShatteredwindowsNosteps/guardrailswalkwaysNoboomangleindicatorNotusingoutriggers8OSHAOfficeofTraining&EducationPlanningBeforeStart-UpLevelthecraneandensuresupportsurfaceisfirmandabletosupporttheloadContactpowerlineownersandd

6、etermineprecautions.Knowthelocationandvoltageofoverheadpowerlines.Knowthebasiccranecapacities,limitations,andjobsiterestrictions,suchasthelocationofpowerlines,unstablesoil,orhighwinds.Makeotherpersonnelawareofhoistingactivities.Barricadeareaswithinswingradius.Ensurepropermaintenanceandinspections

7、.Determinesafeareastostorematerialsandplacemachinery.9OSHAOfficeofTraining&EducationCompetentPersonThecompetentpersonmustinspectallmachineryandequipmentpriortoeachuse,andduringuse,tomakesureitisinsafeoperatingcondition