1、AN A MER ICAN N A T I O N A L S T A N D A R D Sa f et y R equi r emen t s f or P o w e r ed P l at f orm s and T r a v eli n g L a d de r s and G antri e s f or B u i l di n g M ain t e n an c e A S M E A120.1-201 4( R e vis ion o f A S M E A120.1-2008 ) ASME A120.1-2014(Revision of ASME A120.1-2008
2、)Safety Requirementsfor Powered Platformsand Traveling Laddersand Gantries forBuilding MaintenanceAN AMERICAN NATIONAL STANDARDTwo Park Avenue New York, NY 10016 USADate of Issuance: February 9, 2016The next edition of this Standard is scheduled for publication in 2018. This Standard will becomeeffe
3、ctive 6 months after the Date of Issuance.ASME issues written replies to inquiries concerning interpretations of technical aspects of thisStandard. Interpretations are published on the ASME Web site under the Committee Pages athttp:/cstools.asme.org/ as they are issued.Errata to codes and standards
4、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 standards. Such errata shall be used on the date posted.The Committee Pages can be found at http:/cstools.asme.org/. There
5、is an option available toautomatically receive an e-mail notification when errata are posted to a particular code or standard.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 S
6、ociety of Mechanical Engineers.This code or standard was developed under procedures accredited as meeting the criteria for American NationalStandards. The Standards Committee that approved the code or standard was balanced to assure that individuals fromcompetent and concerned interests have had an
7、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, academia,regulatory agencies, and the public-at-large.ASME does not “approve,” “rate,” or “endorse” any item, construction
8、, 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 does not undertake to insure anyone utilizing a standard against liability forinfringement of any applicable letter
9、s 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 such rights, isentirely their own responsibility.Participation by federal agency representative(s) or person(s) aff
10、iliated 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 issued in accordance with the establishedASME procedures and policies, which precludes the issuance of interpretati
11、ons 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 2016 byTHE AMERICAN SOCIETY OF
12、MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.CONTENTSForeword ivCommittee Roster vCorrespondence With the A120 Committee . viSummary of Changes vii1 General Recommendations and Definitions 12 Building Design Requirements . 53 Equipment Design and Construction Requirements 84 Traveling Lad
13、ders and Gantries 215 Inspections, Tests, Operation, and Maintenance . 23Table4.3.2 Access . 22Mandatory AppendixI Operating Manual Layout 27iiiFOREWORDThis Standard provides for the safe design of powered platforms for building maintenance,where window cleaning and related services are accomplished
14、 by means of suspended equipmentat heights in excess of 35 ft (11 m) above a safe surface, e.g., grade, street, floor, or roof level.The provisions of the Standard are intended to apply to all known systems used to supportsuspended maintenance equipment as well as the suspended equipment itself (eit
15、her permanentlyinstalled or transportable equipment). Guidelines are also included for a buildings structuralsupport areas as well as the building surfaces that actually interface with the equipment.The Standard does not apply to other suspended powered platforms used for remedial renova-tions or mo
16、difications to buildings. The safe use of these types of scaffolds is addressed byAmerican National Standard ANSI A10.8. The A120.1 Standard also does not relate to any serviceperformed by persons supported by equipment covered by any of the ANSI A92 Standards.The purpose of this Standard is to ensu
17、re the protection of all powered platform users as wellas persons potentially exposed to use of the equipment. In developing this Standard, safety hasbeen held as the primary consideration. The Standard requires that permanently installed ortransportable equipment be properly designed by a qualified
18、 professional engineer, taking intoaccount specific building features rather than attempting to accommodate the system to a build-ings structure and facade features that may not be suitable for its safe operation. In addition,care has been taken so as not to exclude or render obsolete any existing p
19、roduct or equipment.Operation and maintenance instructions in this safety standard are intended for general applica-tions. The equipment manufacturer and/or installer shall be consulted for specific operating ormaintenance instructions.This Standard reflects the evolution of a project begun in 1962
20、by the American NationalStandards Committee on Window Cleaning Safety, A39. At that time, the Committee recognizedthat a new method was being developed for cleaning fixed sash windows by means of a specialscaffolding. In order to deal expertly with this new development, a new project was established
21、,separate from that handled by the A39 Committee. Following a general conference, the AmericanNational Standards Committee on Powered Platforms, ANSI A120, was formed, with the NationalSafety Council acknowledged as sponsor. In 1965, the American Society of Mechanical Engineers(ASME) was approved as
22、 co-sponsor. In 1984, the Building Owners and Managers AssociationInternational was approved as secretariat.A previous edition of the Standard, A120.1-1970, was administratively withdrawn in 1989. ThisStandard had established safety requirements for the design, construction, installation, inspection
23、,and use of power-operated platforms for exterior building maintenance. The Standard did notapply to temporary equipment used for construction work or to devices raised and loweredmanually.A120.1-1992 was the result of joint action by participating organizations under the auspices ofthe American Nat
24、ional Standards Institute (ANSI). That Standard was approved through twovotes of the ANSI A120 Committee, at a meeting in New York City (October 17, 1991) and byletter ballot (dated December 30, 1991).In 1995, ASME again assumed sponsorship of the Standard. ASME A120.1-1996 was approvedby ANSI on Ap
25、ril 17, 1996. ASME A120.1-2001 was approved by ANSI on July 3, 2001.ASME A120.1-2006 was approved by ANSI on September 20, 2006. ASME A120.1-2008 wasapproved by ANSI on July 16, 2008.This revision was approved by ANSI on March 4, 2014.ivASME A120 COMMITTEESafety Requirements for Powered Platformsfor
26、 Building Maintenance(The following is the roster of the Committee at the time of approval of this Standard.)STANDARDS COMMITTEE OFFICERSC. S. Caulkins, ChairB. L. Gartner, Vice ChairA. Byk, SecretarySTANDARDS COMMITTEE PERSONNELW. T. Ayres, W. T. Ayres however, they shouldnot contain proprietary na
27、mes or information.Requests that are not in this format may be rewritten in the appropriate format by the Committeeprior to being answered, which may inadvertently change the intent of the original request.ASME procedures provide for reconsideration of any interpretation when or if additionalinforma
28、tion that might affect an interpretation is available. Further, persons aggrieved by aninterpretation may appeal to the cognizant ASME committee or subcommittee. ASME does not“approve,” “certify,” “rate,” or “endorse” any item, construction, proprietary device, or activity.Attending Committee Meetin
29、gs. The A120 Standards Committee regularly holds meetingsand/or telephone conferences that are open to the public. Persons wishing to attend any meetingand/or telephone conference should contact the Secretary of the A120 Standards Committee.viASME A120.1-2014SUMMARY OF CHANGESFollowing approval by t
30、he ASME A120 Committee and ASME, and after public review, ASMEA120.1-2014 was approved by the American National Standards Institute on March 4, 2014.ASME A120.1-2014 includes editorial changes, revisions, and corrections identified on the pagesby a margin note, (14), placed next to the affected area
31、.Page Location Change14 1.5 Updated1.6 (1) Definitions of anchor, anchorage, base,pedestal (davit/outrigger), shunt carriage,and socket (davit/outrigger) added(2) Definitions of dropline and lifelinerevised5 2.2 Revised7 2.3.5 (1) Second paragraph revised(2) Last paragraph added8 3.1.1 Last paragrap
32、h revised3.1.4 Last paragraph added9, 10 3.1.7 Added3.1.8 Added3.1.9 Added11 3.2.7 Revised in its entirety3.3.1 Revised3.3.2 Revised in its entirety1214 3.4 (1) First paragraph revised(2) Subparagraph (g) added3.5 Revised in its entirety3.6 Last paragraph added15 3.7.2 Former para. 3.7.2 deleted and
33、subsequent paragraphs redesignated16, 17 3.7.4.10 Revised in its entirety3.7.4.12 First sentence revised23 5.1.2 (1) Title revised(2) Subparagraphs (c) through (i) addedviiINTENTIONALLY LEFT BLANKviiiASME A120.1-2014SAFETY REQUIREMENTS FOR POWERED PLATFORMSAND TRAVELING LADDERS AND GANTRIES FORBUILD
34、ING MAINTENANCE1 GENERAL RECOMMENDATIONS ANDDEFINITIONS1.1 ScopeThis Standard establishes safety requirements forpowered platforms (scaffolds) for buildings where win-dow cleaning and related services are accomplished bymeans of suspended equipment at heights in excess of35 ft (11 m) above a safe su
35、rface (e.g., grade, street, floor,or roof level). Additionally, this Standard establishessafety requirements for permanent traveling ladders andgantries (TLG).It pertains to either permanently installed or trans-portable equipment meeting the requirements of thisStandard.Powered platforms and TLGs m
36、ay be used or operatedby one or more persons engaged in services such asnormal building maintenance. The equipment may alsobe used for tasks such as caulking, metal polishing,reglazing, or other building repairs.This Standard does not apply to other suspendedpowered platforms used for remedial renov
37、ations ormodifications to buildings. The safe use of these scaf-folds is included in ANSI A10.8-2001, SafetyRequirements for Scaffolding.This Standard does not relate to any service performedby persons supported by equipment covered by any ofthe ANSI A92 standards.1.2 PurposeThe purpose of this Stan
38、dard is to ensure the protec-tion of powered platform users and traveling ladder andgantry users, and persons exposed to equipment usedwith the previously described maintenance of buildings.It is also intended for use by architects, engineers,designers, manufacturers, inspectors, purchasers, build-i
39、ng owners, and others associated with the installation ofpowered platforms and traveling ladders and gantries.Additionally, it is recommended for use by enforce-ment agencies having jurisdiction over the installationof powered platforms and traveling ladders and gantriesto ensure that the platforms
40、meet the safety provisionsof this Standard.11.3 Application of This Standard1.3.1 Applications. This Standard applies to theinstallation of all powered platforms and traveling lad-ders and gantries.1.3.2 Deviations. Deviations from the requirementsof this Standard may be granted by the enforcing aut
41、hor-ity if it is determined that a specific requirement createspractical difficulty or excessive hardship, or where thespecific requirement prevents the use of a novel design,only when equivalent safety is provided.1.3.3 Alterations(a) Any existing building being serviced may con-tinue to be service
42、d until the building is altered, requir-ing a modification of the installation. Alteration of thebuilding and equipment modification shall then bemade to comply with the applicable parts of thisStandard.(b) If the authority having jurisdiction believes thathazards exist to warrant a change in an exi
43、sting installa-tion, the authority may require compliance with anypart of this Standard. If a qualified person deems thata hazard exists, the hazard shall be corrected, and thecorrection shall be in compliance with this Standard.(c) Once a building permit is issued or modified, thecurrent version of
44、 the Standard shall apply.1.4 Applicable UnitsThis edition of the Standard uses U.S. Customary unitswith acceptable metric (SI) units shown in parentheses.NOTE: The metric values stated may not be exact equivalents tothe U.S. Customary units.Information on the usage of SI units and their conver-sion
45、 from U.S. Customary units is contained in theIEEE/ASTM SI 10-1997, Standard for the Use of theInternational System of Units (SI): The Modern MetricSystem; or ASME Guide SI-1, Orientation and Guidefor Use of SI (Metric) Units.1.5 ReferencesWhen a nationally recognized standard, other thanthat specif
46、ically referred to in para. 1.1, is referred toand is superseded by a revision, the edition current atthe time of acceptance of this Standard shall apply.(14)ASME A120.1-2014Aluminum Construction ManualSpecifications for Aluminum StructuresAluminum Standards and DataPublisher: Aluminum Association,
47、Inc. (AA), 1400 Crys-tal Drive, Suite 430, Arlington, VA 22202(www.aluminum.org)ANSI A10.8-2001, Safety Requirements for ScaffoldingPublisher: American National Standards Institute(ANSI), 25 West 43rd Street, New York, NY 10036(www.ansi.org)ANSI/ASSE A10.32-2004, Fall Protection Systems forConstruct
48、ion and Demolitions Operations*ANSI/ASSE Z359.1-2007 Safety Requirements forPersonal Fall Arrest Systems, Subsystems andComponentsPublisher: The American Society of Safety Engineers(ASSE), 520 N. Northwest Hwy, Park Ridge, IL 60068(www.asse.org)ASTM A1023/A1023M-09, Standard Specification forStrande
49、d Carbon Steel Wire Ropes for GeneralPurposesPublisher: ASTM International, 100 Barr Harbor Drive,P.O. Box C700, West Conshohocken, PA 19428-2959(www.astm.org)National Electrical CodePublisher: National Fire Protection Association (NFPA),1 Batterymarch Park, Quincy, MA 02169(www.nfpa.org)NOTE: When a referenced Standard is designated with an aster-isk (*), the entire Standard is not accepted. Only the sections thataddress the item(s) referenced in the A120 Standard are to beconsidered.1.5.1 Listed below are additional nationally recog-nized standards-promulgating organizations.Ame
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