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

ASME A17.1-2007/CSA B44-07

(Revision of ASME A17.1-2004 and CSA B44-04)

Safety Code for Elevators and Escalators

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

AN AMERICAN NA TIONAL S T AND ARD

Date of Issuance: April 6, 2007

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Copyright © 2007 by

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CONTENTS

ASME Foreword viii

ASME Committee Roster xii

CSA Committees xvi

ASME Preface xviii

CSA Preface xxi

Summary of Changes xxii

Part 1 General 1

1. Scope 1

2. Purpose and Exceptions 2

3. Definitions 2

Part 2 Electric Elevators 17

1. Construction of Hoistways and Hoistway Enclosures 17

2. Pits 19

3. Location and Guarding of Counterweights 21

4. Vertical Clearances and Runbys for Cars and Counterweights 22

5. Horizontal Car and Counterweight Clearances 24

6. Protection of Space Below Hoistways 25

7. Machinery Spaces, Machine Rooms, Control Spaces, and Control

   Rooms 25

8. Equipment in Hoistways, Machinery Spaces, Machine Rooms,

   Control Spaces, and Control Rooms 33

9. Machinery and Sheave Beams, Supports, and Foundations 34

10. Guarding of Equipment and Standard Railing 36

11. Protection of Hoistway Openings 37

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

    Access Switches 45

13. Power Operation of Hoistway Doors and Car Doors 49

14. Car Enclosures, Car Doors and Gates, and Car Illumination 51

15. Car Frames and Platforms 59

16. Capacity and Loading 63

17. Car and Counterweight Safeties 67

18. Speed Governors 71

19. Ascending Car Overspeed and Unintended Car Movement

    Protection 74

20. Suspension Ropes and Their Connections 75

21. Counterweights 81

22. Buffers and Bumpers 83

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

    Fastenings 85

24. Driving Machines and Sheaves 94

25. Terminal Stopping Devices 96

26. Operating Devices and Control Equipment 98

27. Emergency Operation and Signaling Devices 109

28. Layout Drawings 118

29. Identification 118

Part 3 Hydraulic Elevators 120

1. Construction of Hoistways and Hoistway Enclosures 120

2. Pits 120

1. Electric and Hand Dumbwaiters Without Automatic Transfer

   Devices 219

2. Hydraulic Dumbwaiters Without Automatic Transfer Devices 225

3. Material Lifts Without Automatic Transfer Devices 227

4. Electric Material Lifts Without Automatic Transfer Devices 230

5. Hydraulic Material Lifts Without Automatic Transfer Devices 236

6. Automatic Transfer Devices 236

7. Power Dumbwaiters With Automatic Transfer Devices 237

8. Electric Material Lifts With Automatic Transfer Devices 237

9. Hydraulic Material Lifts With Automatic Transfer Devices 239

10. Material Lifts With Obscured Transfer Devices 239

Part 8 General Requirements 240

1. Security 240

2. Design Data and Formulas 241

3. Engineering Tests, Type Tests, and Certification 259

4. Elevator Safety Requirements for Seismic Risk Zone 2 or Greater 267

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

   or Greater 287