ASME_B30.4-2020.pdf

AN AM E R IC A N NAT IO NAL STANDARDASME B30.4-2020(Revision of ASME B30.4-2015)Portal andPedestal CranesSafety Standard for Cableways,Cranes,Derricks,Hoists,Hooks,Jacks,and SlingsASME B30.4-2020(Revision of ASME B30.4-2015)Portal andPedestal CranesSafety Standard for Cableways,Cranes,Derricks,Hoists,Hooks,Jacks,and SlingsAN AMERICAN NATIONAL STANDARDxDate of Issuance:October 20,2020ThenexteditionofthisStandardisscheduledforpublicationin2025.ThisStandardwillbecomeeffective1yearaftertheDateofIssuance.ASME issues written replies to inquiries concerning interpretations of technical aspects of this Standard.Interpretations arepublished on the ASME website under the Committee Pages at http:/cstools.asme.org/as they are issued.Errata to codes and standards may be posted on the ASME website under the Committee Pages to provide corrections toincorrectlypublisheditems,ortocorrecttypographicalorgrammaticalerrorsincodesandstandards.Sucherratashallbeusedon the date posted.TheCommitteePagescanbefoundathttp:/cstools.asme.org/.Thereisanoptionavailabletoautomaticallyreceiveane-mailnotification when errata are posted to a particular code or standard.This option can be found on the appropriate CommitteePage after selecting“Errata”in the“Publication Information”section.ASME is the registered trademark of The American Society of Mechanical Engineers.ThiscodeorstandardwasdevelopedunderproceduresaccreditedasmeetingthecriteriaforAmericanNationalStandards.TheStandardsCommitteethatapprovedthecodeorstandardwasbalancedtoassurethatindividualsfromcompetentandconcernedinterestshavehadanopportunityto participate.The proposed codeorstandardwasmadeavailable forpublic reviewandcommentthatprovidesanopportunityfor additional public input from industry,academia,regulatory agencies,and the public-at-large.ASME does not“approve,”“rate,”or“endorse”any item,construction,proprietary device,or activity.ASME does not take any position with respect to the validity of any patent rights asserted in connection with any items mentioned in thisdocument,anddoesnotundertaketoinsureanyoneutilizingastandardagainstliabilityforinfringementofanyapplicableletterspatent,norassumeanysuchliability.Usersofacodeorstandardareexpresslyadvisedthatdeterminationofthevalidityofanysuchpatentrights,andtherisk of infringement of such rights,is entirely their own responsibility.Participation by federal agency representative(s)or person(s)affiliated with industry is not to be interpreted as government or industryendorsement of this code or standard.ASME accepts responsibility for only those interpretations of this document issued in accordance with the established ASME proceduresand policies,which precludes the issuance of interpretations by individuals.No part of this document may be reproduced in any form,in an electronic retrieval system or otherwise,without the prior written permission of the publisher.The American Society of Mechanical EngineersTwo Park Avenue,New York,NY 10016-5990Copyright 2020 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.CONTENTSForeword.vCommittee Roster.viiB30 Standard Introduction.ixSummary of Changes.xiiChapter 4-0Scope,Definitions,Personnel Competence,Translations,and References.1Section 4-0.1Scope of B30.4.1Section 4-0.2Definitions.1Section 4-0.3Personnel Competence.2Section 4-0.4Translations.2Section 4-0.5References.5Chapter 4-1Erection,Characteristics,and Construction.6Section 4-1.1Site Preparation and Erection.6Section 4-1.2Structural Design and Construction.6Section 4-1.3Load Ratings and Stability.7Section 4-1.4Documentation.8Section 4-1.5Hoisting Equipment.9Section 4-1.6Luffing Equipment.9Section 4-1.7Swing(Slewing)Mechanism.10Section 4-1.8Travel Equipment.10Section 4-1.9Brakes,General Requirements.10Section 4-1.10Lifting Magnets and Below-the-Hook Lifting Devices.10Section 4-1.11Operational Aids.10Section 4-1.12Boom and Jib Support Ropes.11Section 4-1.13Reeving Accessories.11Section 4-1.14Counterweights.11Section 4-1.15Controls.11Section 4-1.16Electrical Equipment.12Section 4-1.17Operators Cab.12Section 4-1.18General Requirements.12Chapter 4-2Inspection,Testing,and Maintenance.14Section 4-2.1Inspection.14Section 4-2.2Operational Aids.15Section 4-2.3Testing.15Section 4-2.4Maintenance.16Section 4-2.5Rope Inspection,Replacement,and Maintenance.17Chapter 4-3Operation.18Section 4-3.1Qualifications and Responsibilities.18Section 4-3.2Operating Practices.21iiiSection 4-3.3Signals.23Section 4-3.4Miscellaneous.25Figures4-0.2.1-1Pedestal Crane With Luffing Boom.34-0.2.1-2Portal Crane With Level Luffing Boom.34-0.2.1-3Portal Crane With Luffing Boom.44-3.3.4-1Standard Hand Signals for Controlling Portal and Pedestal Cranes.24ivFOREWORDThisAmericanNationalStandard,SafetyStandardforCableways,Cranes,Derricks,Hoists,Hooks,Jacks,andSlings,hasbeendevelopedundertheproceduresaccreditedbytheAmericanNationalStandardsInstitute(ANSI).ThisStandardhadits beginning in December 1916,when an eight-page“Code of Safety Standards for Cran