ASME_B30.8-2004.pdf

ASME B30.8-2004(Revision of ASME B30.8-1999)FLOATINGCRANES ANDFLOATINGDERRICKSAN AMERICAN NATIONAL STANDARDThe American Society ofMechanical EngineersNo roproduction or networking permitled without liconso from IHSNot for RosaleThe American Society ofMechanical EngineersA ME R IC AN N AT I ON AL ST A N D AR DFLOATINGCRANES ANDFLOATINGDERRICKSASfB30.8-2004(Revision of ASME B30.8-1999)SAFETY STANDARD FOR CABLEWAYS,CRANES,DERRICKS,HOISTS,HOOKS,JACKS,AND SLINGSo with ASMENo roproduction or networking permitled without liconso from IHSNot for RosaleCONTENTSForeword.9g8g9gg5g0g0gg9g9eg8g8g0g889ggivCommittee RosterIntroductionviiSummary of ChangesChapter 8-0Scope,Definitions,and References1Section 8-0.1Scope ofB30.8.1Section 8-0.2Definitions,1Section 8-0.3References4Chapter 8-1Construction and Installation.6Section 8-1.1Load Ratings and Markings6Section 8-1.2Construction and Loading Conditions。g。4。4.4。6Section 8-1.3General Requirements for Pontoons and Barges。Section 8-1.4General Requirements for Cranes and Derricks7Section 8-1.5Vertical clearance.8Section 8-1.6Boom Hoist(Luffing Hoist)and Load Hoist Mechanisms.8Section 8-1.7Swing Mechanism9Section 8-1.8COntrols.9Section 8-1.9Ropes and Reeving Accessories.10Section 8-1.10Cabs。s11Section 8-1.11General Requirements for Booms.12Chapter 8-2Inspection,Testing,and Maintenance.13Section 8-2.1Inspection-General.13Section 8-2.2Testing.14Section 8-2.3Maintenance.15Section 8-2.4Rope Inspection,Replacement,and Maintenance.16Chapter 8-3Operation.18Section 8-3.1Qualifications for and Conduct of Operators18Section 8-3.2Operating Practices.19Section 8-3.3Signals44444。4444。4444。421Section 8-3.4Miscellaneous21Figures1Floating Crane.12Barge-Mounted Shearleg.23Barge-Mounted Land Crane.2Floating Stiffleg Derrick.2Floating A-Frame Derrick26Reach for Floating Cranes4Dead Ending Rope in a Socket.118Core Failure in 19 x 7 Rotation-Resistant Rope.169Standard Hand Signals for Controlling Crane and Derrickperations.2310Danger Zone for Cranes,Derricks,and Lifted Loads Operating NearElectrical Transmission Lines.26Table2Required Clearance for Normal Voltage in Operation Near High VoltagePower Lines and Operation in Transit With No Load and Boom orMast Lowered22i进No roproduction or notworking permitled without liconso from IHSNot for RosaleFOREWORDThis American National Standard,Safety Standard for Cableways,Cranes,Derricks,Hoists,Hooks,Jacks,and Slings,has been developed under the procedures accredited by the AmericanNational Standards Institute(formerly the United States of America Standards Institute).ThisStandard had its beginning in December 1916 when an eight-page Code of Safety Standards forCranes,prepared by an ASME Committee on the Protection of Industrial Workers,was presentedto the annual meeting of the ASME.Meetings and discussions regarding safety on cranes,derricks,and hoists were held from 1920to 1925,involving the ASME Safety Code Correlating Committee,the Association of Iron andSteel Electrical Engineers,the American Museum of Safety,the American Engineering StandardsCommittee(later changed to American Standards Association and subsequently to the USAStandards Institute),Department of Labor-State of New Jersey,Department of Labor andIndustry-State of Pennsylvania,and the Locomotive Crane Manufacturers Association.OnJune 11,1925,the American Engineering Standards Committee approved the ASME Safety CodeCorrelating Committees recommendation and authorized the project with the U.S.Departmentof the Navy,Bureau of Yards and Docks,and ASME as sponsors.In March 1926,invitations were issued to 50 organizations to appoint representatives to aSectional Committee.The call for organization of this Sectional Committee was sent out October2,1926,and the committee organized November 4,1926,with 57 members representing 29 nationalorganizations.The Safety Code for Cranes,Derricks,and Hoists,ASA B30.2-1943,was createdfrom the eight-page document referred to in the first paragraph.This document was reaffirmedin 1952 and widely accepted as a safety standard.Due to changes in design,advancement in techniques,and general interest of labor and industryin safety,the Sectional Committee,under the joint sponsorship of ASME and the Naval FacilitiesEngineering Command,U.S.Department of the Navy,was reorganized as an American NationalStandards Committee on January 31,1962,with 39 members representing 27 national organiza-tions.The format of the previous code was changed so that separate volumes(each complete as toconstruction and installation;inspection,testing,and maintenance;and operation)would coverthe different types of equipment included in the scope of B30.In 1982,the Committee was reorganized as an Accredited Organization Committee,operatingunder procedures developed by ASME and accredited by the American National StandardsInstitute.This Standard presents a coordinated set of rules that may serve as a guide to governmentand other regulatory bodies and municipal authorities responsible for the guarding and inspectionof the equipment falling within its scope.The suggestions leading to accident prevention aregiven both as mandatory and advisory provisions;compliance with both types may be requiredby employers of their employees.In case of practical difficulties,new developments,or unnecessary hardship,the administrativeor regulatory authority may grant variances from the literal requirements or permit the use ofother devices or methods,but only when it is clearly evident that an equivalent degree ofprotection is thereby secured.To secure uniform application and interpretation of this Standard,administrative or regulatory authorities are urged to consult the B30 Committee,in accordancewith the format described in Section IlI,before rendering decisions on disputed points.Safety codes and standards are intended to enhance public safety.Revisions result from commit-tee consideration of factors such as technological advances,new data,and changing environmentaland industry needs.Revisions do not imply that previous editions were inadequate.Suggestions for the improvement of this volume of the Standard are welcome.They shouldbe addressed to The American Society of Mechanical Engineers;Secretary,B30 Main Committee;Three Park Avenue;New York,NY 10016-5990.This volume of the Standard,which was approved by the B30 Committee and by ASME,wasapproved by ANSI and designated as an American National Standard on February 20,2004.ivNo roproduction or notworking permitled without liconso from IHSNot for Rosale