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ID:59438928
大小:2.94 MB
页数:31页
时间:2020-09-18
《(全英文)楼梯与梯子的安全使用注意事项ppt课件.ppt》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、StairwaysandLadders1OSHAOfficeofTraining&EducationStairwaysandladderscausemanyinjuriesandfatalitiesamongconstructionworkersAbouthalftheinjuriescausedbyslips,tripsandfallsfromladdersandstairwaysrequiretimeoffthejobHazardsImproperuseofthetoprungofastepladder2OSHAOfficeofTraining&EducationAtthe
2、endofthistraining,youshouldbeabletolistordescribe:SafetyguidelinesandrequirementsforstairwaysusedataconstructionsiteSafepracticesandrequirementsforladdersusedataconstructionsiteSlips,TripsandFallsOnStairwaysandLadders3OSHAOfficeofTraining&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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