1、AN AMERICAN NATIONAL STANDARD ASME B20.1-2012(Revision of ASME B20.1-2009)Safety Standard for Conveyors and Related EquipmentASME B20.1-2012(Revision of ASME B20.1-2009)Safety Standardfor Conveyorsand RelatedEquipmentAN AMERICAN NATIONAL STANDARDThree Park Avenue New York, NY 10016 USADate of Issuan
2、ce: May 15, 2012The next edition of this Standard is scheduled for publication in 2015. This Standard will becomeeffective 1 year after the Date of Issuance.ASME issues written replies to inquiries concerning interpretations of technical aspects of thisStandard. Interpretations are published on the
3、ASME Web site under the Committee Pages athttp:/cstools.asme.org/ as they are issued.Errata to codes and standards may be posted on the ASME Web site under the Committee Pages toprovide corrections to incorrectly published items, or to correct typographical or grammatical errorsin codes and standard
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5、after selecting “Errata” in the “PublicationInformation” section.ASME is the registered trademark of The American Society of Mechanical Engineers.This code or standard was developed under procedures accredited as meeting the criteria for American NationalStandards. The Standards Committee that appro
6、ved the code or standard was balanced to assure that individuals fromcompetent and concerned interests have had an opportunity to participate. The proposed code or standard was madeavailable for public review and comment that provides an opportunity for additional public input from industry, academi
7、a,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 anyitems mentioned in this document, and
8、does not undertake to insure anyone utilizing a standard against liability forinfringement of any applicable letters patent, nor assumes any such liability. Users of a code or standard are expresslyadvised that determination of the validity of any such patent rights, and the risk of infringement of
9、such rights, isentirely their own responsibility.Participation by federal agency representative(s) or person(s) affiliated with industry is not to be interpreted asgovernment or industry endorsement of this code or standard.ASME accepts responsibility for only those interpretations of this document
10、issued in accordance with the establishedASME procedures and 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 Americ
11、an Society of Mechanical EngineersThree Park Avenue, New York, NY 10016-5990Copyright 2012 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.CONTENTSForeword ivCommittee Roster . viSummary of Changes viiIntroduction 11 Scope 12 Reference to Other Codes 13 Intent 14 De
12、finitions 25 General Safety Standards 76 Specific Safety Standards 9iiiFOREWORDThe first edition of the Safety Standard for Conveyors, Cableways, and Related Equipmentwas sponsored by the National Conservation Bureau and the American Society of MechanicalEngineers (ASME). It was approved by the Amer
13、ican Standards Association (now known as theAmerican National Standards Institute) (ANSI) as American Standard B20.1-1947.In 1950, the Sectional Committee B20 was reorganized under the sponsorship of the AccidentPrevention Department of the Association of Casualty and Surety Companies and ASME. Four
14、Subcommittees were formed to make specific recommendations for revisions. These wereSubcommittee No. 1: Scope and IntentSubcommittee No. 2: Nomenclature and DefinitionsSubcommittee No. 3: Portable ConveyorsSubcommittee No. 4: Conveyors in GeneralSection 5, Definitions, was based on the conveyor indu
15、stry dictionary, Conveyor Terms andDefinitions, as prepared by the Technical Committee (now the Engineering Conference) of theConveyor Equipment Manufacturers Association (CEMA).The second edition of this Standard, dated April 1955, was submitted in draft form to theSectionalCommitteeforapprovalandd
16、istributedtoindustryingeneralforcriticismandcomment.Approval was then given by the Sectional Committee, the sponsors, and the American StandardsAssociation.TheStandard wasdesignatedasAmerican StandardB20.1-1957onDecember 4,1957.In 1967, the third edition of the Safety Standard for Conveyors and Rela
17、ted Equipment wassubmitted in draftform to representatives ofindustry for comment. It wassubsequently approvedby the Sectional Committee, the sponsors, and ANSI for issuance as American National StandardB20.1-1972 on February 17, 1972.ThefourtheditionoftheSafetyStandardforConveyorsandRelatedEquipmen
18、twasundertakenin 1973 to assist the Office of Safety and Health Standards, U.S. Department of Labor, whichindicated interest in the Standard.A change in format from a specification standard to a performance standard was deemednecessary. Simply stated, the Standard describes what end result should be
19、 achieved without thelimiting specification usually given by a design and without the inclusion of finite materialselection or dimensions.The fourth edition was subsequently approved by the B20 American National StandardsCommittee, the Secretariat, and ANSI for issuance as American National Standard
20、 B20.1-1976on June 14, 1976.In accordance with the policy of ANSI, the B20 Committee began working on a revision ofB20.1-1976 in February 1980. The fifth edition was approved by the B20 Committee, the sponsor(ASME), and ANSI for issuance as American National Standard B20.1-1984 on March 13, 1984.Per
21、theproceduresoutlinedandimplementedinthefifthedition,thesixtheditionwasapprovedbytheB20Committee,thesponsor(ASME),andANSIforissuanceasAmericanNationalStandardB20.1-1987 on March 11, 1987. The seventh edition was approved for issuance as an AmericanNational Standard on March 26, 1990. The eighth edit
22、ion was approved for issuance as anAmerican National Standard on August 9, 1993.The ninth edition was a compilation of changes occurring in the 1993 edition, B20.1a-1994, andB20.1b-1995. It was approved for issuance as an American National Standard on May 23, 1997.The 2000 edition was a compilation
23、of changes from the B20.1a-1997 and B20.1b-1998 addenda.It was approved for issuance as an American National Standard on December 14, 2000.FollowingapprovalbytheB20CommitteeandASME,andafterpublicreview,ASMEB20.1-2003was approved by ANSI on October 9, 2003. The 2003 edition was a revision to B20.1-20
24、00.ASME B20.1-2006 was approved by ANSI on September 7, 2006. The 2006 edition was a revisionto B20.1-2003.ASME B20.1-2009 was approved by ANSI on February 2, 2009. This 2009 edition was a revisionto ASME B20.1-2006.ivASME B20.1-2012 was approved by ANSI on March 28, 2012. This 2012 edition is a rev
25、isionto B20.1-2009.This Standard shall become effective 1 year from the date of issuance.Safety standards for mechanical power apparatus are published in ANSI B15.1-2000 (R2008)Safety Standard for Mechanical Power Transmission Apparatus. Safety standards for lockout andtagoutprocedures arepublishedi
26、n ANSIZ244.1-1982(R1993), SafetyRequirementsfor LockOut/Tag Out of Energy Sources and OSHA Standard Number 29 CFR 1910.147, The Control ofHazardous Energy (Lockout/Tagout). The use of recommendations and guidelines as publishedby CEMA, Safety Label Brochure No. 201 and Guidelines for Vertical Recipr
27、ocating Conveyors,published by the Conveyor Product Section of The Material Handling Institute in conjunctionwith ASME B20.1 is encouraged, as are the above-mentioned standards.The values stated within this Standard are in both SI and U.S. Customary units, with the latterplaced in parentheses. These
28、 units are essentially interchangeable, and, depending on the country,as well as industry preferences, the user will determine which values are to be regarded as thestandard.Safety codes and standards are intended to enhance public safety. Revisions result fromcommittee consideration of factors such
29、 as technological advances, new data, and changingenvironmentalandindustryneeds.Revisionsdonotimplythatpreviouseditionswereinadequate.vASME B20 COMMITTEESafety Standard for Conveyors and RelatedEquipment(The following is a roster of the Committee at the time of publication of this Standard.)STANDARD
30、S COMMITTEE OFFICERSR. W. Parry, ChairM. R. Webster, Vice ChairR. Mohamed, SecretarySTANDARDS COMMITTEE PERSONNELM. S. Adel, Autoquip Corp.T. M. Berger, Martin Sprocket conveyor, foldingbelt; conveyor, material encapsulating;conveyor, pipe; conveyor, sandwich;conveyor, square belt; conveyor, teardro
31、p;conveyor, tube; and skirtboard added9 6.1.1 Subparagraphs (a)(6), (a)(7), and (a)(8)added15 6.22 AddedviiINTENTIONALLY LEFT BLANKviii(12)(12)ASME B20.1-2012SAFETY STANDARD FORCONVEYORS AND RELATED EQUIPMENTINTRODUCTIONAccidents resulting from the manual handling ofmaterials have been reduced by th
32、e use of conveyingand other forms of mechanical handling equipment. Afurther reduction in the accident rate can be gained byfollowing safe practices in the design, construction,installation, operation, and maintenance of suchequipment.The design and installation of conveyors and con-veyor systems sh
33、ould be supervised by qualified engi-neers. Likewise, the operation and maintenance ofconveyors and systems should be supervised by trainedpersonnel.The purpose of this Standard is to present certainguides for the design, construction, installation, opera-tion, and maintenance of conveyors and relat
34、edequipment.Those portions of this Standard relating to mainte-nance and operation procedures are fully as importantas those relating to design and installation. The bestdesign features may be negated by faulty maintenanceand operating practices. It is important that operatingand maintenance personn
35、el beinstructed in recognizinghazards and pertinent safety precautions.Operationandmaintenanceinstructions inthisSafetyStandard are intended for general applications. Theequipment manufacturer and/or installer shouldbe consulted for specific operating or maintenanceinstructions.1 SCOPEThis Standard
36、applies to the design, construction,installation, maintenance, inspection, and operation ofconveyorsandconveyingsystemsinrelationtohazards.The conveyors may be of the bulk material, package, orunit-handling types, where the installation is designedfor permanent, temporary, or portable operation.This
37、 Standard shall apply, with the exceptions notedbelow, to all conveyor installations.This Standard specifically excludes any conveyordesigned, installed, or used primarily for the movementof people. ThisStandard does, however, applyto certainconveyingdevicesthatincorporatewithintheirsupport-ing stru
38、cture workstations or operators stations specifi-cally designed for authorized operating personnel.1This Standard does not apply to conveyors such asunderground mine conveyors for which specific stan-dards are already in effect, or to equipment such asindustrial trucks, tractors, trailers, automatic
39、 guidedvehicles, tiering machines (except pallet load tierers),cranes,hoists,powershovels,powerscoops,bucketdraglines, trenchers, platform elevators designed to carrypassengersoranoperator,manlifts,movingwalks,mov-ing stairways (escalators), highway or railroad vehicles,cableways, tramways, dumbwait
40、ers, material lifts,industrial scissors lifts, pneumatic conveyors, robots, orintegral machinetransfer devices.Some ofthe foregoinghave specific standards.The provisions of this Standard shall apply to equip-ment installed 1 yr after the date of issuance.2 REFERENCE TO OTHER CODESCertain other codes
41、 and standards have been cited asreferences in this Standard. Reference to them does notconstitute inclusion of the complete text of such codesor standards as a part of this Standard.This Safety Standard for conveyors is supplementaryto any law or code covering fire or health regulations.3 INTENTThe
42、intentofthisStandardistoprovideforsafeopera-tion and maintenance of conveying equipment.Suggestions for improvement of this Standard maybe submitted to the Secretary of the B20 Committee,ASME, Three Park Avenue, New York, NY 10016-5990.Proposals should be written in accordance with thefollowing form
43、at:(a) Specify page and paragraph designation of thepertinent standard.(b) Indicate suggested change (addition, deletion,revision, etc.).(c) Brieflystatereasonand/orevidenceforsuggestedchange.(d) Separatelysubmitsuggestedchangesifmorethanone paragraph is affected.The B20 Committee will consider each
44、 suggestedchange at its first meeting after receipt of the suggestedchange(s).The B20 Committee will render an interpretation ofany requirement of the Standard. Interpretations will be(12)ASME B20.1-2012rendered only in response to a written request sent tothe Secretary of the B20 Committee, ASME, T
45、hree ParkAvenue, New York, NY 10016-5990.Therequestforinterpretationshallbeinthefollowingformat:Subject: Cite the applicable paragraph number(s)and provide a concise description.Edition: Cite the applicable edition of the standardfor which the interpretation is beingrequested.Question: Phrasetheques
46、tionasarequestforaninter-pretation of a specific requirement suitablefor general understanding and use, not asa request for an approval of a proprietarydesign or situation. The inquirer may alsoinclude any plans or drawings that are nec-essary to explain the question; however,they should not contain
47、 proprietary namesor information.ASME procedures provide for reconsideration of anyinterpretation when or if additional information thatmight affect an interpretation is available. Further, per-sons aggrieved by an interpretation may appeal to thecognizantASMEcommittee.ASME doesnot“approve,”“certify
48、,” “rate,” or “endorse” any item, construction,proprietary device, or activity.4 DEFINITIONS1accessible: applies to hazardous objects not guarded orisolated and likely to be contacted inadvertently.actuator: a device that initiates the action of controls orcontrollers and is manually operated. The a
49、ctuator maybe a push button, toggle switch, foot pedal, hand lever,hand-set timer, or any other device that performs thedescribed function.antirunaway: asafetydevicetostopadecliningconveyorandthuspreventmovingawayintheeventofamechani-cal or electrical failure.apron pan: one of a series of overlapping or interlockingplates or shapes that, together with others, form theconveyor bed.automatically controlled: describes the operation by theaction of a mechanism that is initiated by some imper-sonal influence, such as a conveyor that is started by alow-level bin indicator.backstop: a mechan
