ASME A17.1—2004

(Revision of ASME A17.1—2000)

SAFETY CODE FOR ELEVATORS AND ESCALATORS

Includes Requirements for Elevators, Escalators, Dumbwaiters, Moving Walks, Material Lifts, and Dumbwaiters With Automatic Transfer Devices

A N A M E R I C A N N A T I O N A L S T A N D A R D

A N A M E R I C A N N A T I O N A L S T A N D A R D

SAFETY CODE FOR ELEVATORS AND ESCALATORS

Includes Requirements for Elevators, Escalators, Dumbwaiters, Moving Walks, Material Lifts, and Dumbwaiters With Automatic Transfer Devices

ASME A17.1–2004

(Revision of ASME A17.1–2000)

Date of Issuance: April 30, 2004

This edition was approved by the American National Standards Institute on January 14, 2004. It was issued on April 30, 2004 and is effective as of October 31, 2004.

This edition of the Code is being issued with an automatic addenda subscription service. The use of an addenda allows revisions made in response to public review comments or committee actions to be published on a regular basis; revisions published in addenda will become effective six months after the Date of Issuance of the addenda unless noted otherwise within a given addenda. The next edition of this Code is scheduled for publication in 2007.

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The American Society of Mechanical Engineers Three Park Avenue, New York, NY 10016

Copyright © 2004 by

THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS

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CONTENTS

Foreword viii

Committee Roster xii

Preface xvi

Summary of Changes xix

Part 1 General 1

1. Scope 1

2. Purpose and Exceptions 2

3. Definitions 2

Part 2 Electric Elevators 16

1. Construction of Hoistways and Hoistway Enclosures 16

2. Pits 18

3. Location and Guarding of Counterweights 19

4. Vertical Clearances and Runbys for Cars and Counterweights 20

5. Horizontal Car and Counterweight Clearances 23

6. Protection of Space Below Hoistways 23

7. Machine Rooms and Machinery Spaces 24

8. Equipment in Hoistways and Machine Rooms 26

9. Machinery and Sheave Beams, Supports, and Foundations 27

10. Guarding of Equipment and Standard Railing 29

11. Protection of Hoistway Openings 29

12. Hoistway Door Locking Devices and Electric Contacts, and Hoistway

    Access Switches 37

13. Power Operation of Hoistway Doors and Car Doors 41

14. Car Enclosures, Car Doors and Gates, and Car Illumination 43

15. Car Frames and Platforms 51

16. Capacity and Loading 54

17. Car and Counterweight Safeties 59

18. Speed Governors 62

19. Ascending Car Overspeed and Unintended Car Movement

    Protection 65

20. Suspension Ropes and Their Connections 67

21. Counterweights 73

22. Buffers and Bumpers 74

23. Car and Counterweight Guide Rails, Guide-Rail Supports, and

    Fastenings 77

24. Driving Machines and Sheaves 85

25. Terminal Stopping Devices 87

26. Operating Devices and Control Equipment 90

27. Emergency Operation and Signaling Devices 97

28. Layout Drawings 104

29. Identification 104

Part 3 Hydraulic Elevators 106

1. Construction of Hoistways and Hoistway Enclosures 106

2. Pits 106

3. Location and Guarding of Counterweights 106

4. Bottom and Top Clearances and Runbys for Cars and

   Counterweights 106

5. Horizontal Car and Counterweight Clearances 108

1. Electric Material Lifts With Automatic Transfer Devices 220

2. Hydraulic Material Lifts With Automatic Transfer Devices 222

3. Material Lifts With Obscured Transfer Devices 222

Part 8 General Requirements 223

1. Security 223

2. Design Data and Formulas 223

3. Engineering Tests, Type Tests, and Certification 241

4. Elevator Safety Requirements for Seismic Risk Zone 2 or Greater 248

5. Escalator and Moving Walk Safety Requirement for Seismic Risk Zone 2

   or Greater 269

6. Maintenance, Repair, and Replacement 270

7. Alterations 279

8. Welding 293

9. Code Data Plate 293

10. Acceptance Inspections and Tests 293

11. Periodic Inspections and Tests 307

Part 9 Reference Codes, Standards, and Specifications 318

1. Reference Documents 319

2. Procurement Information 325

Figures

2.16.1.1 Inside Net Platform Areas for Passenger Elevators 55

1. Tapered Rope Sockets 70

2. Wedge Rope Sockets 70

2.23.3 Elevator Guide Rails 77

2.23.4.1-1 Maximum Weight of a Car With Rated Load or of Counterweight With Safety Device for a Pair of Guide Rails as Specified

in 2.23.4.1 79

2.23.4.1-2 Minimum Moment of Inertia About x-x Axis for a Single Guide Rail

With Its Reinforcement 80

2.27.3.1.6(h) Visual Signal 100

2.27.3.3.7 Panel Layout 102

1. Phase I Emergency Recall Operation Instructions 104

2. Phase II Emergency In-Car Operation 105

5.1.17.3 Vertical and Horizontal Components of Velocity 135

6.1.3.3.10 Dimensions 178

6.1.6.9.1 Caution Sign 186

8.2.1.2 Minimum Rated Load for Passenger Elevators 225

8.2.2.5.1 Turning Moment Based on Class of Loading 226

1. Gravity Stopping Distances 229

2. Maximum Governor Tripping Speeds 230

3. Stopping Distances for Type B Car and Counterweight Safeties 232

4. Minimum Factors of Safety of Suspension Wire Ropes of Power

Passenger and Freight Elevators 235

8.2.8.1.1 Allowable Gross Loads 236

8.2.9.1.3 Load Distribution 239

8.4.3.1.3 Arc of Contact 249

8.4.8.2-1 12 kg/m (8 lb/ft) Gui