1、AN AMERICAN NATIONAL STANDARD ASME B20.1-2015(Revision of ASME B20.1-2012)Safety Standard for Conveyors and Related EquipmentASME B20.1-2015(Revision of ASME B20.1-2012)Safety Standardfor Conveyorsand RelatedEquipmentAN AMERICAN NATIONAL STANDARDTwo Park Avenue New York, NY 10016 USADate of Issuance
2、: November 30, 2015The next edition of this Standard is scheduled for publication in 2018. 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 t
3、he ASME Web site under the Committee Pages athttp:/cstools.asme.org/ as they are issued. Interpretations will also be included with each edition.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 corr
4、ect typographical or grammatical errorsin codes and standards. Such errata shall be used on the date posted.The Committee Pages can be found at http:/cstools.asme.org/. There is an option available toautomatically receive an e-mail notification when errata are posted to a particular code or standard
5、.This option can be found on the appropriate Committee Page 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 Am
6、erican NationalStandards. The Standards Committee that approved 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 op
7、portunity for 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
8、in connection with anyitems mentioned in this document, and 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
9、 of any such patent rights, and the risk of infringement of 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 res
10、ponsibility for only those interpretations of this document 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,with
11、out the prior written permission of the publisher.The American Society of Mechanical EngineersTwo Park Avenue, New York, NY 10016-5990Copyright 2015 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.CONTENTSForeword ivCommittee Roster . viSummary of Changes viiIntrodu
12、ction 11 Scope 12 Reference to Other Codes 13 Intent 14 Definitions 25 General Safety Standards 76 Specific Safety Standards 10Mandatory AppendixI Specifications for Design, Installation, Commissioning, and Periodic Inspection ofVertical Reciprocating Conveyors 17iiiFOREWORDThe first edition of the
13、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 American Standards Association now known as theAmerican National Standards Institute (ANSI) as American Stan
14、dard 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. Thefollowing four Subcommittees were formed to make specific recommendations for revisions:Subcommittee No. 1:
15、 Scope and IntentSubcommittee No. 2: Nomenclature and DefinitionsSubcommittee No. 3: Portable ConveyorsSubcommittee No. 4: Conveyors in GeneralThe definitions section was based on the conveyor industry dictionary, Conveyor Terms andDefinitions, as prepared by the Technical Committee (now the Enginee
16、ring Conference) of theConveyor Equipment Manufacturers Association (CEMA).The second edition of this Standard, dated April 1955, was submitted in draft form to theSectionalCommitteeforapprovalanddistributedtoindustryingeneralforcriticismandcomment.Approval was then given by the Sectional Committee,
17、 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 Related Equipment wassubmitted in draftform to representatives ofindustry for comment. It wassubsequently a
18、pprovedby the Sectional Committee, the sponsors, and ANSI for issuance as American National StandardB20.1-1972 on February 17, 1972.ThefourtheditionoftheSafetyStandardforConveyorsandRelatedEquipmentwasundertakenin 1973 to assist the Office of Safety and Health Standards, U.S. Department of Labor, wh
19、ichindicated 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 achieved without thelimiting specification usually given by a design and without the inclusion of fini
20、te 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 B20.1-1976on June 14, 1976.In accordance with the policy of ANSI, the B20 Committee began working on a
21、 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.Pertheproceduresoutlinedandimplementedinthefifthedition,thesixtheditionwasapprovedbytheB20Committee,thespo
22、nsor(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 edition was approved for issuance as anAmerican National Standard on August 9, 1993.The ninth edition was a
23、 compilation of changes from 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 of changes from the B20.1a-1997 and B20.1b-1998 addenda.It was approved for issuance as an American National St
24、andard on December 14, 2000.FollowingapprovalbytheB20CommitteeandASME,andafterpublicreview,ASMEB20.1-2003was approved by ANSI on October 9, 2003. The 2003 edition was a revision to ASME B20.1-2000.ASME B20.1-2006 was approved by ANSI on September 7, 2006. The 2006 edition was a revisionto ASME B20.1
25、-2003.ASME B20.1-2009 was approved by ANSI on February 2, 2009. The 2009 edition was a revisionto ASME B20.1-2006.ivASME B20.1-2012 was approved by ANSI on March 28, 2012. The 2012 edition was a revisionto ASME B20.1-2009.ASME B20.1-2015 was approved by ANSI on September 9, 2015. This 2015 edition i
26、s a revisionto ASME B20.1-2012.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 andtagout procedures
27、 are published in ANSI/ASSE Z244.1-2003 (R2014), Control of HazardousEnergy Lockout/Tagout and Alternative Methods, and OSHA Standard 29 CFR 1910.147, TheControl of Hazardous Energy (Lockout/Tagout). The use of recommendations and guidelines aspublished by CEMA, Safety Label Brochure No. 201 and App
28、lication Guidelines for VerticalReciprocating Conveyors, published by the Conveyor and Sortation Systems (CSS) of the MaterialHandling Institute in conjunction with ASME B20.1 is encouraged, as are the above-mentionedstandards.The values stated within this Standard are in both SI and U.S. Customary
29、units, with the latterplaced in parentheses. These 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
30、result fromcommittee consideration of factors such 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
31、the time of publication of this Standard.)STANDARDS COMMITTEE OFFICERSF. J. Loeffler, Jr., ChairR. W. Parry, Vice ChairR. Mohamed, SecretarySTANDARDS COMMITTEE PERSONNELT. M. Berger, Martin Sprocket however,they should not contain proprietary namesor information.ASME procedures provide for reconside
32、ration 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,” “rate,” or “endorse” any item, construction,proprietary device, or
33、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 actuator maybe a push button, toggle switch, foot pedal, hand lever,han
34、d-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 the
35、conveyor bed.automatically controlled: describing 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 mechanical device to prevent reversal of aloaded conveyor under action of gravity wh
36、en forwardtravel is interrupted.1Many definitions were extracted from the latest revision ofConveyor Terms and Definitions, Book No. 102, prepared by theEngineering Conference of the Conveyor EquipmentManufacturers Association. For definitions of terms other thanthose defined in section 4, refer to
37、this publication.2bed:(a) that part of a conveyor upon which the load orcarrying medium rests or slides while being conveyed(b) in bulk material conveyors, the mass of materialbeing conveyedbelt idler: a roller or series of rollers that supports thebelt of a belt conveyor.belt tripper: a device inco
38、rporating a system of pulleysthat causes the conveyor belt to discharge material atone or more points along the length of the conveyor.boom: a cantilevered member or structure that may behinged, fixed, or pivoted.brake: a friction device for slowing down conveyor com-ponents, bringing conveyor equip
39、ment to a controlledstop, holding traveling or traversing equipment in aselected location, preventing reverse travel, and control-ling overspeed due to the action of gravity.bunker: a large bin or compartment for storage of bulkmaterials.car unloader: a type of conveyor characterized by a shal-low,
40、horizontal loading section that enables it to receiveand unload material from hopper bottom cars withoutrequiring a pit or other excavation.carrier:(a) a device attached to or hung from trolleys to sup-port the load(b) thereceptacleinwhichobjectsareplacedfortrans-mittal through a conveying system(c)
41、 themovingpartofaverticalorinclinedreciprocat-ing conveyor that supports the loadchain: a series of links pivotally joined together to form amediumforconveyingortransmittingmotionorpower.General classes of chain common to conveyors aredetachable, pintle, combination, roller, rivetless, coil,inverted
42、 tooth, and bar link chains.chute: a trough through which bulk materials or objectsare directed and lowered by gravity. The trough may beopen or enclosed, straight or curved.control: the system governing the starting, stopping,direction of motion, acceleration, speed, retardation,identification, and
43、 function of the moving member in apredetermined manner.controller: an electromechanical device or assembly ofdevices for starting, stopping, accelerating, or decelerat-ing a drive or serving to govern in some predeterminedmanner the power delivered to the drive.conveying medium: that portion of a c
44、onveyor that movesor carries materials, packages, or objects.conveyor: a horizontal, inclined, or vertical device formoving or transporting bulk material, packages, orobjects in a path predetermined by the design of thedeviceandhavingpointsofloadinganddischarge,fixedASME B20.1-2015orselective.Includ
45、edareskiphoistsandverticalrecipro-cating and inclined reciprocating conveyors. Typicalexceptions are those devices known as industrial trucks,tractors, trailers, tiering machines (except pallet loadtierers), cranes, hoists, power shovels, power scoops,bucketdraglines,trenchers,platformelevatorsdesig
46、nedto carry passengers or an operator, manlifts, movingwalks, moving stairways (escalators), highway or rail-wayvehicles,cableways,tramways,dumbwaiters,pneu-matic conveyors, robots, or integral machine transferdevices.conveyor, apron: a conveyor in which a series of apronpans forms a moving bed.conv
47、eyor, belt:anendlessfabric,rubber,plastic,leather,or metal belt operating over suitable drive, tail end, andbend terminals and over belt idlers or slider bed forhandling bulk materials, packages, or objects placeddirectly upon the belt.conveyor, bucket: any type of conveyor in which thematerial is c
48、arried in a series of buckets.conveyor, chain: any type of conveyor in which one ormorechainsactastheconveyingmedium;aBritishtermfor trolley conveyor.conveyor, declining: a conveyor transporting down aslope.conveyor, electrified monorail: a conveyor consisting ofa network of tracks or guide rails th
49、at may be installedhorizontally, vertically, inclined, or in combination withone or more self-propelled cars or trolleys that moveindependently under automatic control from one pointto another within the track network, carrying materialin containers or by devices suspended from or attachedto the cars or trolleys.conveyor, en masse: a conveyor, comprised of a seriesof skeleton or solid flights on an endless chain or otherlinkage, that operates in horizontal, inclined, or verticalpaths within a closely fitted casing for the carrying run.Bulkmaterialisconveyedandelevatedinasubstantial
