Safety Code for Elevators and Escalators

1 ASME B44:19(Revision of ASME B44-16) Safety Code for Elevators and EscalatorsIncludes Requirements for Elevators , Escalators , Dumbwaiters, Moving Walks, Material Lifts, and Dumbwaiters With Automatic Transfer DevicesAN AMERICAN NATIONAL :19(Revisionof )SafetyCodeforElevatorsandEscalatorsxInc ludesRequirementsforElevators, Escalators ,Dumbwaiters,MovingWalks,MaterialLifts,a ndDumbwaitersWithAutomaticTransferDevice sANAMERICANNATIONALSTANDARDxDate of Issuance: December 31, 2019 The next edition of this Code is scheduled for publication in 2022. This Code will become effective 6 months after the Date issues written replies to inquiries concerning interpretations of technical aspects of this Code. Interpretations arepublished on the ASME website under the Committee Pages at as they are to codes and standards may be posted on the ASME website under the Committee Pages to provide corrections toincorrectly published items, or to correct typographical or grammatical errors in codes and standards.

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3 Users of a code or standard are expressly advised that determination of the validity of any such patent rights, and therisk of infringement of such rights, is entirely their own by federal agency representative(s) or person(s) affiliated with industry is not to be interpreted as government or industryendorsement of this code or 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 part of this document may be reproduced in any form,in an electronic retrieval system or otherwise,without the prior written permission of the American Society of Mechanical EngineersTwo Park Avenue, New York, NY 10016-5990 Copyright 2019 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in APPENDIX EELEVATOR REQUIREMENTS FOR PERSONS WITH PHYSICALDISABILITIES IN JURISDICTIONS ENFORCING THE NBCCINTRODUCTIONThis Appendix was developed and approved by the CSAB44 Technical Committee.

4 The ASME A17 StandardsCommittee, in the spirit of harmonization, authorizedthe publication of this Appendix is not a mandatory part of this Code;however, it is provided for reference in order tocomply with the requirements of the SCOPEThis Appendix contains requirements intended to makepassenger Elevators usable by persons with physicaldisabilities in jurisdictions enforcing the NBCC. These re-quirements are in addition to, or modifications of, certainrequirements specified elsewhere in this Code. Elevatorsshall be passenger Elevators as classified by ASME B44. elevator operation shall be DEFINITIONS destination-oriented elevator system:an elevatorsystem that provides lobby controls for the selection ofdestination floors, lobby indicators designating whichelevator to board, and a car indicator designating thefloors at which the car will :a technologyused to enter a car call by means of an up or down floorselection disability:a disability resulting in a mobility orsensory (VMS):electronic signs that havea message with the capacity to change by means of scrol-ling, streaming, or paging across a message sign (VMS) characters:characters ofan electronic sign composed of pixels in an LEVELINGEach car shall automatically stop and maintain positionat floor landings within a tolerance of 13 mm (1 2in.)

5 Underrated loading to zero loading DOOR OPERATIONP ower-operated horizontally sliding car and landingdoors opened and closed by automatic means shall DOOR SIZEThe clear width of elevator doors shall comply withTable DOOR PROTECTIVE AND REOPENING shall be provided with a door reopeningdevice that automaticallystops and reopens the car doorand landing door if the door becomes obstructed by anobject or person. This reopening device shall also becapable of sensing an object or person in the path of aclosing door at 125 mm 25 mm (5 in. 1 in.) and735 mm 25 mm (29 in. 1 in.) above the floorwithout requiring contact for activation, althoughcontact may occur before the door reopening devices shall remain effectivefor a period of not less than 20 DOOR TIMING FOR HALL AND CAR minimum acceptable time from notificationthat a car is answering a call until the doors of that car startto close shall be calculated from the following equation,but shall not be less than 5 s:=TD/(455 mm/s)orT=D/( ft/s)whereTequals the total time in seconds andDequals thedistance (in millimeters or feet) from the point in the lobbyor corridor 1 525 mm (60 in.)

6 Directly in front of the far-thest call button controlling that car to the centerline of itshoistway cars with in-car lanterns,Tshall begin whenthe signal is visible from the point 1525 mm (60 in.)directly in front of the farthest hall call button and theaudible signal is B44:19440 Table E-5-1 Minimum Dimensions of elevator CarsDoor LocationDoor ClearWidth,mmInside Car,Side to Side,mmInside Car,Back Wall toFront Return,mmInside Car,Wall to InsideFace of Door,mmCentered1 0652 0301 2951 370 Side (off-center)91521 7251 2951 370 Any91521 3702 0302 030 Any91521 5251 5251 525 GENERAL NOTES:(a) This Table is based on Tables and in ANSI/ICC , metric values only.(b) A tolerance of 16 mm shall be B44 doors shall remain fully open inresponse to a car call for 3 s INSIDE DIMENSIONS OF elevator inside dimensions of elevator cars shallcomplywithTable car configurations that provide a 915 mm(36in.) minimum clear door width and a circular spacewith a minimum diameter of 1 525 mm (60 in.)

7 With theCar controlsshall have the features asspecified inClauses closedare CAR with floor designations shall belocated a maximum of1 220 mm (48 in.) above the floor orground measured to the centerline of the buttons. Emer-gency control buttons, including emergency alarms whereprovided, shall be grouped at the bottom of the control buttons shall have their centerlines890 mm (35 in.) minimum above the floor or Button shall be 19 mm( in.) minimum in their smallest dimension. Buttons orsurrounding button collars shall be raised a minimum mm ( in.). Button shall bearranged with numbers in ascending order. Floorsshall be designated .. 4, 3, 2, 1, 0, 1, 2, 3, 4, etc.,with floors below the main entry floor designated withnegative numbers. Numbers shall be permitted to beomitted, provided the remaining numbers are insequence. Where a telephone keypad arrangement isused, the number key (#) shall be used to enter theminus symbol ( ). When two or more columns ofbuttons are provided, they shall read from left to existing building floor designa-tions differ from the arrangement required byClause are alphanumeric, a new operatingpanel shall be permitted to use such existing buildingfloor Button buttons shall be identified byraised characters and Braille complying withClause character and Braille designa-tions shall be placed immediately to the left of thebutton to which the designations apply.

8 When a negativenumber is used to indicate a negative floor, the Brailledesignation shall be a cell with the dots 3 and 6 followedby the ordinal Control control button for themain entry floor, and control buttons other thanremaining buttons with floor designations, shall be iden-tified with raised symbols and Braille as shown inTable location and size of Braille, where required, shallcomply withTable Visible with floor desig-nations shall be provided with visible indicators to showthat a call has been registered. The visible indication shallextinguish when the car arrives at the designated elevator Car Call Sequential Step car call sequential step scanning shall beprovided where car control buttons are provided morethan 1 220 mm (48 in.) above the floor. Floor selectionshall be accomplished by applying momentary or constantpressure to the up or down scan button. The up scanbutton shall sequentially select floors above thecurrent floor. The down scan button shall sequentiallyselect floors below the current floor.

9 When pressure isremoved from the up or down scan button for morethan 2 s, the last floor selected shall be registered as acar call. The up and down scan buttons shall belocated adjacent to or immediately above the emergencycontrol Telephone-Style shall be in a standard telephone keypad arrange-ment. Call buttons shall be 19 mm ( in.) minimum intheir smallest dimension. Buttons shall be raised aminimum of mm ( in.). Braille shall not berequired. Characters shall be 13 mm ( in.) minimumin height and otherwise conform toClause Thenumber five key shall have a single raised dot. The dotshall be mm to mm ( in. to in.)base diameter and in other aspects conform Characters shall be centered on the corre-sponding keypad button. A display shall be provided inthe car with visible indicators to show registered car desti-nations. The visible indication shall extinguish when thecall has been answered. A standard five-pointed star shallbe used to indicate the main entry CAR POSITION elevator cars, both audible andvisible car floor location indicators shall be providedto identify the floor location of the Visible shall be locatedabove the car control panel or above the be 16 mm ( in.)

10 Minimum in Floor indicate a car passing afloor and when a car stops at a floor served by the elevator ,the corresponding character shall Audible audible signal shall be 10 dBAminimum above ambient, but shall not exceed 80 dBAmaximum, measured at the annunciator. The signalshall be an automatic verbal announcement thatannounces the floor at which the car is about to verbal announcement indicating the floor shall becompleted prior to the initiation of the door verbal annunciator shall have a frequency of 300Hz minimum and 3 000 Hz Elevators , other than destination-oriented Elevators , that have a rated speed of 1 m/s(200 ft/min) or less, where the verbal annunciator isnot provided, an audible signal with a frequency of1 500 Hz maximum that sounds as the car passes orstops at a floor served by the elevator shall be EMERGENCY two-way communicationsystems between the elevator car and a point outsidethe hoistway shall comply The operableparts of a two-way communication system shall belocated between 380 mm (15 in.)