(全英文)楼梯与梯子的安全使用注意事项ppt课件.ppt

(全英文)楼梯与梯子的安全使用注意事项ppt课件.ppt

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时间:2020-09-18

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1、StairwaysandLadders1OSHAOfficeofTraining&EducationStairwaysandladderscausemanyinjuriesandfatalitiesamongconstructionworkersAbouthalftheinjuriescausedbyslips,tripsandfallsfromladdersandstairwaysrequiretimeoffthejobHazardsImproperuseofthetoprungofastepladder2OSHAOfficeofTraining&EducationAtthe

2、endofthistraining,youshouldbeabletolistordescribe:SafetyguidelinesandrequirementsforstairwaysusedataconstructionsiteSafepracticesandrequirementsforladdersusedataconstructionsiteSlips,TripsandFalls OnStairwaysandLadders3OSHAOfficeofTraining&EducationTheremustbeastairwayorladderatpointsofacces

3、swherethereisanelevationbreakof19inchesormore.Atleastonepointofaccessmustbekeptclear.19inchesBreakinelevationStairwayorLadder4OSHAOfficeofTraining&EducationHandrailvs.StairrailStairrailHandrailSystem5OSHAOfficeofTraining&EducationRailsmustbeabletowithstandaforceof200poundsHandrailandTopRailS

4、trength6OSHAOfficeofTraining&EducationHandrailsStairwayswithfourormorerisers,orhigherthan30inches,mustbeequippedwithatleastonehandrail.Thestairwaytothisplatformhasmorethan4risersandisnotguarded.Theplatformrequiresguarding.7OSHAOfficeofTraining&EducationStairwayswithfourormorerisersormorethan

5、30incheshighmusthaveastairrailalongeachunprotectedsideoredge.Stairrails8OSHAOfficeofTraining&EducationInstallbetween30and50degrees.Musthaveuniformriserheightandtreaddepth,withlessthana1/4-inchvariation.Uniform-30&50deg.angleNomorethan1/4inchvariationinanystairwaysystemStairs9OSHAOfficeofTrai

6、ning&EducationOnlyusepanstairsiffilledwithfillermaterialatleasttothetopedgeofeachpan.PanTemporaryStairways10OSHAOfficeofTraining&EducationStairwayslandingsmustbeatleast30inchesdeepand22incheswideatevery12feetorlessofverticalriseUnprotectedsidesoflandingsmusthavestandard42inchguardrailsystems

7、StairwayLandingsLanding11OSHAOfficeofTraining&EducationWheredoorsorgatesopendirectlyonastairway,provideaplatformthatextendsatleast20inchesbeyondtheswingofthedoor.PlatformsandSwingDoors12OSHAOfficeofTraining&EducationDangerousConditionsFixslipperyco

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