17-3_Edtn_2008.pdf

Safety Code for Existing Elevators and EscalatorsAN AMERICAN NATIO NAL STANDARDASME A17.3-2008(Revision of ASME A17.3-2005)Includes Requirements for Electric and Hydraulic Elevators and EscalatorsCopyright 2009 by the American Society of Mechanical Engineers.No reproduction may be made of this material without written consent of ASME.cCopyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.ASME A17.3-2008(Revision of ASME A17.3-2005)Safety Code forExistingElevators andEscalatorsIncludes Requirements forElectric and Hydraulic Elevatorsand EscalatorsAN AMERICAN NATIONAL STANDARDCopyright 2009 by the American Society of Mechanical Engineers.No reproduction may be made of this material without written consent of ASME.cCopyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.Date of Issuance:January 9,2009The next edition of this Code is scheduled for publication in 2011.There will be no addenda issuedto this edition.ASME issues written replies to inquiries concerning interpretations of technical aspects of thisCode.The interpretations will be included with each edition.Interpretations are also published onthe ASME Web site under the Committee Pages at http:/cstools.asme.org as they are issued.ASME is the registered trademark of The American Society of Mechanical Engineers.This code was developed under procedures accredited as meeting the criteria for American National Standards.TheStandards Committee that approved the code was balanced to assure that individuals from competent and concernedinterests have had an opportunity to participate.The proposed code was made available for public review and commentthat 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,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 letters patent,nor assume any such liability.Users of a code are expressly advised thatdetermination of the validity of any such patent rights,and the risk of infringement of such rights,is entirely their ownresponsibility.Participation by federal agency representative(s)or person(s)affiliated with industry is not to be interpreted asgovernment or industry endorsement of this code.ASME accepts responsibility 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,without the prior written permission of the publisher.The American Society of Mechanical EngineersThree Park Avenue,New York,NY 10016Copyright 2009 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.Copyright 2009 by the American Society of Mechanical Engineers.No reproduction may be made of this material without written consent of ASME.cCopyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.CONTENTSForeword.viCommittee Roster.viiiPreface.xiiSummary of Changes.xvPart IIntroduction.11.1Scope.11.2Application of Code.11.3Purpose and Exceptions.21.4Definitions.21.5Alterations,Maintenance,and Inspections and Tests.171.6Reference Documents.17Part IIHoistways and Related Construction for Electric Elevators.20Scope.202.1Hoistways.202.2Machine Rooms and Machinery Spaces.212.3Pits.222.4Clearances and Runbys.222.5Protection of Spaces Below Hoistways.222.6Hoistway Entrances.232.7Hoistway Door Locking Devices,Parking Devices,and Access.242.8Power Operation of Doors and Gates.26Part IIIMachinery and Equipment for Electric Elevators.28Scope.283.1Buffers and Bumpers.283.2Counterweights.283.3Car Frames and Platforms.283.4Car Enclosures.293.5Safeties.313.6Speed Governors.323.7Capacity and Loading.323.8Driving Machines and Sheaves.343.9Terminal Stopping Devices.353.10Operating Devices and Control Equipment.353.11Emergency Operation and Signaling Devices.373.12Suspension Means and Their Connections.38Part IVHydraulic Elevators.40Scope.404.1Hoistway,Hoistway Enclosures,and Related Construction.404.2Mechanical Equipment.404.3Driving Machines.404.4Valves,Supply Piping,and Fittings.404.5Tanks.414.6Terminal Stopping Devices.414.7Operating Devices and Control Equipment.414.8Additional Requirements for Coun