ASME A17.1 10:2010 Edition

$98.04

ASME A17.1 Safety Code for Elevators and Escalators

Published By	Publication Date	Number of Pages
ASME	2010	546

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Category: ASME

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Description

A17.1 covers the design, construction, operation, inspection, testing, maintenance, alteration, and repair of the following equipment, its associated parts, and its hoistways, where located in or adjacent to a building or structure: (a) hoisting and lowering mechanisms, equipped with a car or platform, which move between two or more landings. This equipment includes, but is not limited to, elevators; (b) power driven stairways and walkways for carrying persons between landings. This equipment includes, but is not limited to escalators and moving walks; (c) hoisting and lowering mechanisms equipped with a car which serves two or more landings and is restricted to the carrying of material by its limited size or limited access to the car. This equipment includes, but is not limited to, dumbwaiters and material lifts.

PDF Catalog

PDF Pages	PDF Title
5	CONTENTS
7	Figures
8	Tables
10	ASME FOREWORD
14	COMMITTEE ROSTER
19	CSA COMMITTEES
21	ASME PREFACE
24	CSA PREFACE
25	SUMMARY OF CHANGES
33	Part 1 General 1.1 SCOPE 1.1.1 Equipment Covered by This Code 1.1.2 Equipment Not Covered by This Code 1.1.3 Application of Parts
34	1.1.4 Effective Date 1.2 PURPOSE AND EXCEPTIONS 1.2.1 Purpose 1.2.2 Exceptions to ASME A17.1 1.3 DEFINITIONS
50	Part 2 Electric Elevators 2.1 CONSTRUCTION OF HOISTWAYS AND HOISTWAY ENCLOSURES 2.1.1 Hoistway Enclosures
51	2.1.2 Construction at Top and Bottom of the Hoistway 2.1.3 Floor Over Hoistways 2.1.4 Control of Smoke and Hot Gases 2.1.5 Windows and Skylights
52	2.1.6 Projections, Recesses, and Setbacks in Hoistway Enclosures 2.2 PITS 2.2.1 General 2.2.2 Design and Construction of Pits 2.2.3 Guards Between Adjacent Pits 2.2.4 Pit Access
53	2.2.5 Illumination of Pits
54	2.2.6 Stop Switch in Pits 2.2.7 Minimum Pit Depths Required 2.2.8 Access to Underside of Car 2.3 LOCATION AND GUARDING OF COUNTERWElGHTS 2.3.1 Location of Counterweights 2.3.2 Counterweight Guards 2.3.3 Remote Counterweight Hoistways
55	2.3.4 Counterweight Runway Enclosures 2.4 VERTICAL CLEARANCES AND RUNBYS FOR CARS AND COUNTERWEIGHTS 2.4.1 Bottom Car Clearances 2.4.2 Minimum Bottom Runby for Counterweighted Elevators
56	2.4.3 Minimum Bottom Runby for Uncounterweighted Elevators 2.4.4 Maximum Bottom Runby 2.4.5 Counterweight Runby Data Plate 2.4.6 Maximum Upward Movement of the Car 2.4.7 Top of Car Clearances 2.4.2.2 Minimum Bottom Runby forCounterweight Elevators With Spring Buffers orSolid Bumpers and Rheostatic Control orSingle-Speed AC Control
57	2.4.8 Top of Counterweight Clearances 2.4.9 Equipment on Top of Car Not Permitted to Strike Overhead Structure 2.5 HORIZONTAL CAR AND COUNTERWEIGHT CLEARANCES 2.5.1 Clearances Between Cars, Counterweights, and Hoistway Enclosures
58	2.6 PROTECTION OF SPACE BELOW HOlSTWAYS 2.6.1 Where the Space Is Underneath the Counterweight and/ or Its Guides 2.6.2 Where the Space Is Underneath the Car and/ or Its Guides 2.7 MACHINERY SPACES, MACHINE ROOMS, CONTROL SPACES, AND CONTROL ROOMS 2.7.1 Enclosure of Rooms and Spaces
59	2.7.2 Maintenance Path and Clearance 2.7.3 Access to Machinery Spaces, Machine Rooms, Control Spaces, and Control Rooms
60	2.7.4 Headroom in Machinery Spaces, Machine Rooms, Control Spaces, and Control Rooms
61	2.7.5 Working Areas Inside the Hoistway and in the Pit
63	2.7.6 Location of Machinery Spaces, Machine Rooms, Control Spaces, Control Rooms, and Equipment
65	2.7.7 Machine Rooms and Control Rooms Underneath the Hoistway 2.7.8 Remote Machine Rooms and Control Rooms
66	2.7.9 Lighting, Temperature, and Humidity in Machinery Spaces, Machine Rooms, Control Spaces, and Control Rooms 2.8 EQUIPMENT IN HOISTWAYS, MACHINERY SPACES, MACHINE ROOMS, CONTROL SPACES, AND CONTROL ROOMS 2.8.1 Equipment Allowed 2.8.2 Electrical Equipment and Wiring 2.8.3 Pipes, Ducts, Tanks, and Sprinklers
67	2.8.4 Electrical Heaters 2.8.5 Air Conditioning 2.8.6 Miscellaneous Equipment 2.9 MACHINERY AND SHEAVE BEAMS, SUPPORTS, AND FOUNDATIONS 2.9.1 Supports Required
68	2.9.2 Loads on Machinery and Sheave Beams, Floors, or Foundations and Their Supports 2.9.3 Securing of Machinery and Equipment to Beams, Foundations, Guide Rails, Structural Walls, or Floors
69	2.9.4 Allowable Stresses for Machinery and Sheave Beams or Floors, Their Supports, and Any Support Members That Transmit Load to the Guide Rails or Structural Walls 2.9.5 Allowable Deflections of Machinery and Sheave Beams, Their Supports, and Any Support Members Loaded in Bending That Transmit Load to Guide Rails or Structural Walls 2.9.6 Allowable Stresses Due to Emergency Braking 2.10 GUARDING OF EQUIPMENT AND STANDARD RAILING 2.10.1 Guarding of Equipment
70	2.10.2 Standard Railing 2.11 PROTECTION OF HOISTWAY OPENINGS 2.11.1 Entrances and Emergency Doors Required
71	2.11.2 Types of Entrances 2.11.3 Closing of Hoistway Doors 2.11.4 Location of Horizontally Sliding or Swinging Hoistway Doors 2.11.5 Projection of Entrances and Other Equipment Beyond the Landing Sills 2.11.6 Opening of Hoistway Doors 2.11.7 Glass in Hoistway Doors
72	2.11.8 Weights for Closing or Balancing Doors 2.11.9 Hoistway Door Locking Devices and Power Operation 2.11.10 Landing- Sill Guards, Landing- Sill Illumination, Hinged Landing Sills, and Tracks on Landings
73	2.11.11 Entrances, Horizontal Slide Type
74	2.11.12 Entrances, Vertical Slide Type
76	2.11.13 Entrances, Swinging Type 2.11.14 Fire Tests
77	2.11.15 Marking 2.11.16 Factory Inspections 2.11.17 Transoms and Fixed Side Panels 2.11.18 Installation Instructions
78	2.11.19 Gasketing of Hoistway Entrances 2.12 HOISTWAY DOOR LOCKING DEVICES AND ELECTRIC CONTACTS, AND HOISTWAY ACCESS SWITCHES 2.12.1 General 2.12.2 Interlocks
79	2.12.3 Hoistway Door Combination Mechanical Locks and Electric Contacts
80	2.12.4 Listing/ Certification Door Locking Devices and Door or Gate Electric Contacts 2.12.5 Restricted Opening of Hoistway or Car Doors 2.12.6 Hoistway Door Unlocking Devices
81	2.12.7 Hoistway Access Switches
82	2.13 POWER OPERATION OF HOISTWAY DOORS AND CAR DOORS 2.13.1 Types of Doors and Gates Permitted 2.13.2 Power Opening 2.13.3 Power Closing
86	2.13.4 Closing Limitations for Power- Operated Horizontally Sliding Hoistway Doors and Horizontally Sliding Car Doors or Gates
87	2.13.5 Reopening Device for Power- Operated Horizontally Sliding Car Doors or Gates 2.13.6 Sequence Operation for Power- Operated Hoistway Doors With Car Doors or Gates 2.14 CAR ENCLOSURES, CAR DOORS AND GATES, AND CAR ILLUMINATION 2.14.1 Passenger and Freight Enclosures, General
90	2.14.2 Passenger- Car Enclosures
91	2.14.3 Freight- Car Enclosure 2.14.4 Passenger and Freight Car Doors and Gates, General Requirements
93	2.14.5 Passenger Car Doors
94	2.14.6 Freight Elevator Car Doors and Gates
95	2.14.7 Illumination of Cars and Lighting Fixtures
96	SECTION 2.15 CAR FRAMES AND PLATFORMS 2.15.1 Car Frames Required 2.15.2 Guiding Members 2.15.3 Design of Car Frames and Guiding Members 2.15.4 Underslung or Sub- Post Frames 2.15.5 Car Platforms
97	2.15.6 Materials for Car Frames and Platform Frames 2.15.7 Car Frame and Platform Connections 2.15.8 Protection of Platforms Against Fire
98	2.15.9 Platform Guards ( Aprons) 2.15.10 Maximum Allowable Stresses in Car Frame and Platform Members and Connections 2.15.11 Maximum Allowable Deflections of Car Frame and Platform Members 2.15.12 Car Frames With Sheaves 2.15.13 Suspension- Rope Hitch Plates or Shapes
99	2.15.14 Calculation of Stresses in Car- Frame and Platform- Frame Members 2.15.15 Platform Side Braces 2.15.16 Hinged Platform Sills 2.15.17 Fastening of Compensation Means 2.16 CAPACITY AND LOADING 2.16.1 Minimum Rated Load for Passenger Elevators 2.15.10.1 Maximum Allowable Stresses in Car Frame and Platform Members and Connections, forSteels Specified in 2.15.6.2.1 and 2.15.6.2.2
100	Fig. 2.16.1.1 Inside Net Platform Areas for Passenger Elevators 2.16.2 Minimum Rated Load for Freight Elevators 2.16.1.1 Inside Net Platform Areas for Passenger Elevators 2.16.1.1 Maximum Inside Net PlatformAreas for the Various Rated Loads
101	2.16.3 Capacity and Data Plates
102	2.16.4 Carrying of Passengers on Freight Elevators 2.16.5 Signs Required in Freight Elevator Cars 2.16.6 Overloading of Freight Elevators 2.16.7 Carrying of One- Piece Loads Exceeding the Rated Load
103	2.16.8 Additional Requirements for Passenger Overload in the Down Direction 2.16.9 Special Loading Means
104	2.17 CAR AND COUNTERWEIGHT SAFETIES 2.17.1 Where Required and Location 2.17.2 Duplex Safeties 2.17.3 Function and Stopping Distance of Safeties 2.17.4 Counterweight Safeties 2.17.5 Identification and Classification of Types of Safeties 2.17.6 Reserved for Future Use 2.17.7 Governor-Actuated Safeties and Car SafetyMechanism Switches Required 2.17.8 Limits of Use of Various Types of Safeties
105	2.17.3 Maximum and Minimum Stopping Distances forType B Car Safeties With Rated Load and Type B Counterweight Safeties
106	2.17.9 Application and Release of Safeties 2.17.10 Minimum Permissible Clearance Between Rail- Gripping Faces of Safety Parts 2.17.11 Maximum Permissible Movement of Governor Rope to Operate the Safety Mechanism 2.17.12 Minimum Factors of Safety and Stresses of Safety Parts and Rope Connections
107	2.17.13 Corrosion- Resistant Bearings in Safeties and Safety- Operating Mechanisms 2.17.14 Marking Plates for Safeties 2.17.15 Governor- Rope Releasing Carriers 2.17.16 Rail Lubricants and Lubrication Plate 2.18 SPEED GOVERNORS 2.18.1 Speed Governors Required and Location 2.18.2 Tripping Speeds for Speed Governors 2.18.3 Sealing and Painting of Speed Governors
108	2.18.4 Speed- Governor Overspeed Switch 2.18.2.1 Maximum Car Speeds at Which Speed Governor Trips and Governor Overspeed SwitchOperates
109	2.18.5 Governor Ropes 2.18.6 Design of Governor- Rope Retarding Means for Type B Safeties 2.18.7 Design of Speed- Governor Sheaves and Traction Between Speed- Governor Rope and Sheave
110	2.18.8 Factors of Safety in Load- Bearing Parts of Speed Governor 2.18.9 Speed- Governor Marking Plate 2.19 ASCENDING CAR OVERSPEED AND UNINTENDED CAR MOVEMENT PROTECTION 2.19.1 Ascending Car Overspeed Protection 2.18.7.4 Multiplier for Determining Governor Sheave Pitch Diameter
111	2.19.2 Unintended Car Movement Protection 2.19.3 Emergency Brake ( See Nonmandatory Appendix F)
112	2.19.4 Emergency Brake Supports 2.20 SUSPENSION MEANS AND THEIR CONNECTIONS 2.20.1 Suspension Means 2.20.2 Suspension- Means Data
113	2.20.3 Factor of Safety 2.20.3 Minimum Factors of Safety for Suspension Members
114	2.20.4 Minimum Number and Diameter ofSuspension Means 2.20.5 Suspension- Member Equalizers 2.20.6 Securing of Suspension Steel Wire Ropes to Winding Drums 2.20.7 Rope Turns on Winding Drums 2.20.8 Suspension- Means Monitoring and Protection
115	2.20.9 Suspension- Member Fastening
117	2.20.9.4 Tapered Rope Sockets Wedge Rope Sockets 2.20.9.4.5 Relation of Rope Diameter to Diameter of the Small Socket Hole
120	2.20.10 Auxiliary Rope Fastening Devices 2.20.11 Suspension- Member Test
121	2.21 COUNTERWEIGHTS 2.21.1 General Requirements 2.21.2 Design Requirements for Frames and Rods 2.21.3 Cars Counterbalancing One Another 2.21.4 Compensation Means
122	2.22 BUFFERS AND BUMPERS 2.22.1 Type and Location 2.22.2 Solid Bumpers 2.22.3 Spring Buffers 2.22.4 Oil Buffers 2.22.3.1 Minimum Spring Buffer Stroke
123	2.22.4.1 Minimum Oil Buffer Strokes
124	SECTION 2.23 CAR AND COUNTERWEIGHT GUIDE RAILS, GUIDE-RAIL SUPPORTS, AND FASTENINGS 2.23.1 Guide Rails Required 2.23.2 Material
125	Fig. 2.23.3 Elevator Guide Rails 2.23.3 Rail Section 2.23.4 Maximum Load on Rails in Relation to the Bracket Spacing 2.23.3 Elevator Guide Rails
126	2.23.5 Stresses and Deflections 2.23.6 Guide- Rail Surfaces 2.23.7 Rail Joints and Fishplates 2.23.3 T-Section Guide-Rail Dimensions
127	2.23.4.1-1 Maximum Weight of a Car With Rated Load or of Counterweight With Safety Device for a Pairof Guide Rails as Specified in 2.23.4.1
128	2.23.4.1-2 Minimum Moment of Inertia About x-x Axis for a Single Guide Rail With Its Reinforcement
131	2.23.4.2 Load Multiplying Factor forDuplex Safeties
132	2.23.8 Overall Length of Guide Rails 2.23.9 Guide- Rail Brackets and Building Supports 2.23.4.3.1 Guide Rails for Counterweight Without Safeties 2.23.4.3.3 Intermediate Tie Brackets
133	2.23.10 Fastening of Guide Rails to Rail Brackets 2.24 DRIVING MACHINES AND SHEAVES 2.24.1 Type of Driving Machines 2.24.2 Sheaves and Drums 2.23.7.2.1 Minimum Thickness of Fishplates and Minimum Diameter of Fastening Bolts 2.23.10.2 Minimum Size of Rail-Fastening Bolts
134	2.24.3 Factor of Safety for Driving Machines, Sheaves, and Drums
135	2.24.4 Fasteners Transmitting Load 2.24.5 Shaft Fillets and Keys 2.24.6 Cast- Iron Worms and Worm Gears 2.24.7 Friction Gearing and Clutches 2.24.8 Braking System and Driving- Machine Brakes ( See Nonmandatory Appendix F, Table F- 1) 2.24.9 Indirect Driving Machines
136	2.24.10 Means for Inspection of Gears 2.25 TERMINAL STOPPING DEVICES 2.25.1 General Requirements 2.25.2 Normal Terminal Stopping Devices
137	2.25.3 Final Terminal Stopping Devices 2.25.4 Emergency Terminal Stopping Means
138	2.26 OPERATING DEVICES AND CONTROL EQUIPMENT 2.26.1 Operation and Operating Devices
141	2.26.2 Electrical Protective Devices
143	2.26.3 Contactors and Relays for Use in Critical Operating Circuits 2.26.4 Electrical Equipment and Wiring 2.26.5 System to Monitor and Prevent Automatic Operation of the Elevator With Faulty Door Contact Circuits 2.26.6 Phase Protection of Motors
144	2.26.4.3.2 SIL for Electrical Protective Devices and Other Electrical Safety Functions
145	2.26.7 Installation of Capacitors or Other Devices to Make Electrical Protective Devices Ineffective 2.26.8 Release and Application of Driving- Machine Brakes
146	2.26.9 Control and Operating Circuits
147	2.26.10 Absorption of Regenerated Power 2.26.11 Car Platform to Hoistway Door Sills Vertical Distance 2.26.12 Symbols
148	2.26.12.1 Symbol Identification
149	2.27 EMERGENCY OPERATION AND SIGNALING DEVICES 2.27.1 Car Emergency Signaling Devices
150	2.27.2 Emergency or Standby Power System
151	2.27.3 Firefighters’ Emergency Operation: Automatic Elevators
153	Fig. 2.27.3.1.6( h) Visual Signal 2.27.3.1.6(h) Visual Signal
156	Fig. 2.27.3.3.7 Panel Layout 2.27.3.3.7 Panel Layout
157	2.27.4 Firefighters’ Emergency Operation: Nonautomatic Elevators
158	2.27.5 Firefighters’ Emergency Operation: Automatic Elevators With Designated- Attendant Operation Fig. 2.27.7.1 Phase I Emergency Recall Operation Instructions 2.27.6 Firefighters’ Emergency Operation: Inspection Operation 2.27.7 Firefighters’ Emergency Operation: Operating Procedures 2.27.7.1 Phase I Emergency Recall OperationInstructions
159	Fig. 2.27.7.2 Phase II Emergency In- Car Operation 2.27.8 Switch Keys 2.27.9 Elevator Corridor Call Station Pictograph 2.28 LAYOUT DRAWINGS 2.28.1 Information Required on Layout Drawings 2.27.7.2 Phase II Emergency In-Car Operation
160	2.29 IDENTIFICATION 2.29.1 Identification of Equipment 2.29.2 Identification of Floors
161	2.27.9 Elevator Corridor Call Station Pictograph
162	Part 3 Hydraulic Elevators 3.1 CONSTRUCTION OF HOISTWAYS AND HOISTWAY ENCLOSURES 3.1.1 Strength of Pit Floor 3.1.2 Floors Over Hoistways 3.2 PITS 3.2.1 Minimum Pit Depths Required 3.3 LOCATION AND GUARDING OF COUNTERWEIGHTS 3.4 BOTTOM AND TOP CLEARANCES AND RUNBYS FOR CARS AND COUNTERWEIGHTS 3.4.1 Bottom Car Clearance
163	3.4.2 Minimum Bottom and Top Car Runby 3.4.3 Car Top and Bottom Maximum Runby 3.4.4 Maximum Upward Movement 3.4.5 Top of Car Clearances 3.4.6 Top Clearance and Bottom Runby of Counterweight 3.4.7 Equipment on Top of Car Not Permitted to Strike Overhead Structure 3.4.8 Clearances Above Hydraulic Jack Projecting Above the Car 3.5 HORIZONTAL CAR AND COUNTERWEIGHT CLEARANCES 3.6 PROTECTION OF SPACES BELOW HOISTWAY
164	3.6.1 Jack- Supporting Structure 3.6.2 Counterweight Safety Actuation 3.6.3 Buffer Types 3.6.4 Buffer Supports 3.7 MACHINERY SPACES, MACHINE ROOMS, CONTROL SPACES, AND CONTROL ROOMS 3.7.1 3.8 ELECTRICAL EQUIPMENT, WIRING, PIPES, AND DUCTS IN HOISTWAY, MACHINERY SPACES, MACHINE ROOMS, CONTROL SPACES, AND CONTROL ROOMS 3.9 MACHINERY AND SHEAVE BEAMS, SUPPORTS, AND FOUNDATIONS 3.10 GUARDING OF EXPOSED AUXILIARY EQUIPMENT
165	3.11 PROTECTION OF HOISTWAY LANDING OPENINGS 3.11.1 Emergency Doors 3.12 HOISTWAY DOOR LOCKING DEVICES, CAR DOOR OR GATE ELECTRIC CONTACTS, AND HOISTWAY ACCESS SWITCHES 3.12.1 Hoistway Door Locking Devices and Electric Contacts, and Hoistway Access Switches 3.12.2 Car Door or Gate Electric Contacts and Car Door Interlocks 3.13 POWER OPERATION, POWER OPENING, AND POWER CLOSING OF HOISTWAY DOORS AND CAR DOORS OR GATES 3.14 CAR ENCLOSURES, CAR DOORS AND GATES, AND CAR ILLUMINATION 3.15 CAR FRAMES AND PLATFORMS 3.15.1 Requirements 3.15.2 Maximum Allowable Stresses and Deflections in Car Frame and Platform Members 3.15.3 Calculations of Stresses and Deflections in Car Frame and Platform Members
166	3.16 CAPACITY AND LOADING 3.16.1 Minimum Rated Load for Passenger Elevators 3.16.2 Minimum Rated Load for Freight Elevators 3.16.3 Capacity and Data Plates 3.16.4 Carrying of Passengers on Freight Elevators 3.16.5 Signs Required in Freight Elevators 3.16.6 Overloading of Freight Elevators 3.16.7 One- Piece Loads Exceeding the Rated Load 3.16.8 Additional Requirements for Passenger Overload 3.16.9 Special Loading Means 3.17 CAR SAFETIES, COUNTERWEIGHT SAFETIES, PLUNGER GRIPPER, AND GOVERNORS 3.17.1 Car Safeties 3.17.2 Counterweight Safeties 3.17.3 Plunger Gripper
168	3.17.4 Governors 3.18 HYDRAULIC JACKS 3.18.1 Hydraulic Jack and Connections 3.18.2 Plungers
169	3.18.3 Cylinders
170	3.18.4 Plunger Stops 3.18.5 Welding 3.18.6 Marking of Hydraulic Jack 3.19 VALVES, PRESSURE PIPING, AND FITTINGS 3.19.1 Materials and Working Pressures
171	3.19.2 Pressure Piping 3.19.3 Connections and Fittings 3.19.4 Valves
173	3.19.5 Piping Buried in the Ground 3.19.6 Welding 3.19.7 Electrical Requirements 3.20 ROPES AND ROPE CONNECTIONS 3.21 COUNTERWEIGHTS 3.21.1 Counterweights 3.21.2 Counterweight Sheaves 3.22 BUFFERS AND BUMPERS 3.22.1 Car Buffers or Bumpers
174	3.22.2 Counterweight Buffers 3.23 GUIDE RAILS, GUIDE- RAIL SUPPORTS, AND FASTENINGS 3.23.1 Direct- Acting Hydraulic Elevators 3.23.2 Roped- Hydraulic Elevators 3.24 HYDRAULIC MACHINES AND TANKS 3.24.1 Hydraulic Machines ( Power Units) 3.24.2 Tanks 3.24.3 Atmosphere Storage and Discharge Tanks 3.24.4 Welding 3.25 TERMINAL STOPPING DEVICES 3.25.1 Normal Terminal Stopping Devices
175	3.25.2 Terminal Speed Reducing Devices 3.25.3 Final Terminal Stopping Devices SECTION 3.26 OPERATING DEVICES AND CONTROL EQUIPMENT 3.26.1 Operating Devices and Control Equipment
176	3.26.2 Inspection Operation 3.26.3 Anticreep and Leveling Operation 3.26.4 Electrical Protective Devices 3.26.5 Phase Reversal and Failure Protection 3.26.6 Control and Operating Circuits
177	3.26.7 Recycling Operation for Multiple or Telescopic Plungers 3.26.8 Pressure Switch 3.26.9 Low Oil Protection 3.26.10 Auxiliary Power Lowering Operation
178	3.27 EMERGENCY OPERATION AND SIGNALING DEVICES 3.27.1 Phase I Emergency Recall Operation After Device Actuation 3.27.2 Phase I Emergency Recall Operation Prior to Device Actuation 3.27.3 Device Actuation at Recall Level 3.27.4 Device Actuation With Phase II Emergency In- Car Operation in Effect 3.28 LAYOUT DATA 3.28.1 Information Required on Layout Drawing
179	3.29 IDENTIFICATION
180	Part 4 Elevators With Other Types of Driving Machines 4.1 RACK- AND- PINION ELEVATORS 4.1.1 Hoistways, Hoistway Enclosures, and Related Construction 4.1.2 Machine Rooms and Machinery Spaces 4.1.3 Equipment in Hoistways or Machine Rooms 4.1.4 Supports and Foundations 4.1.5 Emergency Doors 4.1.6 Car Enclosures, Car Doors and Gates, and Car Illumination 4.1.7 Car Frames and Platforms
181	4.1.8 Capacity and Loading 4.1.9 Car Safeties and Speed Governor 4.1.10 Counterweights 4.1.11 Car Buffers 4.1.12 Guide Rails, Guide- Rail Supports, and Fastenings 4.1.13 Rack- and- Pinion Driving Machine 4.1.14 Terminal Stopping Devices 4.1.15 Operating Devices and Control Equipment
182	4.1.16 Emergency Operation and Signal Devices 4.1.17 Layout Drawings 4.1.18 Welding SECTION 4.2 SCREW- COLUMN ELEVATORS 4.2.1 Hoistways, Hoistway Enclosures, and Related Construction 4.1.9.1 Maximum and Minimum Stopping Distances for Rack-and-Pinion Safeties With Rated Load
183	4.2.2 Vertical Clearance and Runby for Cars 4.2.3 Horizontal Car Clearance 4.2.4 Protection of Spaces Below Hoistway 4.2.5 Machine Rooms and Machinery Spaces 4.2.6 Equipment in Hoistways and Machine Rooms 4.2.7 Supports and Foundations
184	4.2.8 Car Enclosures, Car Doors and Gates, and Car Illumination 4.2.9 Car Frames and Platforms 4.2.10 Capacity and Loading 4.2.11 Car Safeties and Speed Governor 4.2.12 Safety Nut and Data Tag 4.2.13 Car Buffers 4.2.14 Guide Rails, Guide- Rail Supports, and Fastenings 4.2.15 Driving Machine and Screw Column
185	4.2.16 Terminal Stopping Devices 4.2.17 Operating Devices and Control Equipment
186	4.2.18 Emergency Operation and Signaling Devices 4.2.19 Layout Drawings SECTION 4.3 HAND ELEVATORS 4.3.1 Hoistways, Hoistway Enclosures, and Related Construction 4.3.2 Pits 4.3.3 Top Clearances 4.3.4 Enclosures for Machines and Control Equipment 4.3.5 Overhead Beams and Supports, and Access to Machines and Sheaves 4.3.6 Hoistway Entrances
187	4.3.7 Hoistway Gates for Landing Openings 4.3.8 Hoistway Door and Hoistway Gate Locking Devices 4.3.9 Car Enclosures 4.3.10 Use of Glass in Cars 4.3.11 Car Frames and Platforms 4.3.12 Car Compartments 4.3.13 Cars Counterbalancing One Another 4.3.14 Capacity and Loading
188	4.3.15 Car Safeties 4.3.16 Suspension Means 4.3.17 Counterweights 4.3.18 Guide Rails and Fastenings 4.3.19 Driving Machines and Sheaves 4.3.20 Power Attachments 4.3.21 Layout Data 4.3.22 Inspections and Tests
189	Part 5 Special Application Elevators 5.1 INCLINED ELEVATORS 5.1.1 General Requirements 5.1.2 Construction of Hoistway and Hoistway Enclosures 5.1.3 Pits and Work Spaces
190	5.1.4 Counterweight Pit Guards 5.1.5 Clearances for Cars and Counterweights 5.1.6 Protection of Spaces in Line With the Direction of Travel 5.1.7 Equipment in Hoistways and Machine Rooms 5.1.8 Protection of Hoistway Openings 5.1.9 Restricted Opening of Hoistway or Car Doors 5.1.10 Access to Hoistways for Inspection, Maintenance, and Repairs 5.1.11 Car Enclosures
191	5.1.12 Car Frames and Platforms 5.1.13 Capacity and Loading 5.1.14 Car and Counterweight Safeties
192	5.1.14.2 Minimum and Maximum Stopping Distances at Given Angles From Horizontal
193	5.1.15 Speed Governor Drive 5.1.16 Suspension Ropes and Their Connections 5.1.17 Car and Counterweight Buffers 5.1.18 Car and Counterweight Guide Rails, Guide- Rail Supports, and Fastenings 5.1.17.3 Vertical and Horizontal Components ofVelocity 5.1.17.2 Spring Buffer Stroke
194	5.1.19 Driving Machines 5.1.20 Operating Devices and Control Equipment 5.1.21 Emergency Operations and Signaling Devices 5.1.17.4.4 Minimum Oil Buffer Strokes at Given Angle From Horizontal
195	5.1.22 End- Loading Inclined Elevators 5.1.23 Special Requirements for Inclined Elevator Layout Drawings 5.2 LIMITED- USE/ LIMITED- APPLICATION ELEVATORS 5.2.1 Electric Limited- Use/ Limited- Application Elevators
199	5.2.2 Hydraulic Limited- Use/ Limited- Application Elevators
200	5.3 PRIVATE RESIDENCE ELEVATORS 5.3.1 Private Residence Electric Elevators
207	5.3.2 Private Residence Hydraulic Elevators SECTION 5.4 PRIVATE RESIDENCE INCLINED ELEVATORS 5.4.1 Runway Protection
208	5.4.2 Landing Enclosures and Gates ( Where Required) 5.4.3 Machinery Beams and Supports 5.4.4 Car Enclosures, Car Doors, and Gates
209	5.4.5 Car and Chassis Construction 5.4.6 Capacity 5.4.7 Safeties and Governors
210	5.4.8 Suspension Means 5.4.9 Counterweight Guiding and Construction 5.4.10 Bumpers and Buffers 5.4.11 Car and Counterweight Guide and Track Supports and Fastenings
211	5.4.12 Track( s)/ Guide( s) Supporting Structure 5.4.13 Driving Machines and Sheaves 5.4.14 Terminal Stopping Devices 5.4.15 Operating Devices and Control Equipment
212	5.4.16 Marking Plates 5.5 POWER SIDEWALK ELEVATORS 5.5.1 Electric Sidewalk Elevators
215	5.5.2 Direct- Plunger Hydraulic Sidewalk Elevators
216	5.6 ROOFTOP ELEVATORS 5.6.1 Electric Rooftop Elevators
219	5.6.2 Direct- Plunger Hydraulic Rooftop Elevators 5.7 SPECIAL PURPOSE PERSONNEL ELEVATORS 5.7.1 Construction of Hoistways and Hoistway Enclosures
220	5.7.2 Pits 5.7.3 Location and Enclosing of Counterweights 5.7.4 Vertical Clearances and Runby 5.7.5 Horizontal Car and Counterweight Clearances 5.7.6 Protection of Spaces Below Hoistway 5.7.7 Overhead Machinery Beams and Supports 5.7.8 Hoistway Doors and Gates
221	5.7.9 Locking Devices for Hoistway Doors or Gates 5.7.10 Car Enclosures, Car Doors and Gates, and Car Illumination 5.7.11 Car Construction
222	5.7.12 Capacity and Loading 5.7.13 Car Safeties and Governors 5.7.14 Suspension Ropes
223	5.7.15 Counterweight Guiding and Construction 5.7.16 Car and Counterweight Buffers 5.7.17 Car Guide Rails and Guide- Rail Fastenings 5.7.18 Driving Machines and Sheaves
224	5.7.19 Operating Devices and Control Equipment 5.7.20 Operation 5.7.21 Emergency Signal and/ or Communication 5.7.22 Layout Drawings 5.7.23 Welding 5.8 MARINE ELEVATORS 5.8.1 Electric Marine Elevators
225	5.8.2 Hydraulic Shipboard Elevators
226	5.8.3 Rack- and- Pinion Shipboard Elevators 5.9 MINE ELEVATORS 5.9.1 Construction of Hoistways and Hoistway Enclosures 5.9.2 Pits 5.9.3 Location and Guarding of Counterweights 5.9.4 Vertical Clearances and Runbys for Cars and Counterweights 5.9.5 Horizontal Car and Counterweight Clearances 5.9.6 Protection of Space Below Hoistways
227	5.9.7 Machine Rooms and Machinery Spaces 5.9.8 Equipment in Hoistways and Machine Rooms 5.9.9 Machinery and Sheave Beams, Supports, and Foundations 5.9.10 Guarding 5.9.11 Protection of Hoistway Openings 5.9.12 Hoistway Door Locking Devices and Electric Contacts, and Hoistway Access Switches 5.9.13 Power Operation of Hoistway Doors and Car Doors 5.9.14 Car Enclosures, Car Doors and Gates, and Car Illumination
228	5.9.15 Car Frames and Platforms 5.9.16 Capacity and Loading 5.9.17 Car and Counterweight Safeties 5.9.18 Speed Governors 5.9.19 Ascending Car Overspeed and Unintended Car Movement Protection 5.9.20 Suspension Ropes and Their Connections 5.9.21 Counterweights 5.9.22 Buffers and Bumpers 5.9.23 Car and Counterweight Guide Rails, Guide- Rail Supports, and Fastenings 5.9.24 Driving Machines and Sheaves 5.9.25 Terminal Stopping Devices 5.9.26 Operating Devices and Control Equipment
229	5.9.27 Emergency Operations and Signaling Devices 5.9.28 Layout Drawings 5.9.29 Identification 5.9.30 Welding 5.10 ELEVATORS USED FOR CONSTRUCTION 5.10.1 Electric Elevators Used for Construction
233	5.10.2 Hydraulic Elevators Used for Construction
234	Part 6 Escalators and Moving Walks 6.1 ESCALATORS 6.1.1 Protection of Floor Openings 6.1.2 Protection of Trusses and Machine Spaces Against Fire 6.1.3 Construction Requirements
236	6.1.3.3.10 Dimensions
239	6.1.4 Rated Speed
240	6.1.5 Driving Machine, Motor, and Brake
241	6.1.6 Operating and Safety Devices
244	6.1.6.9.1 Caution Sign
245	6.1.7 Lighting, Access, and Electrical Work
246	6.1.8 Outdoor Escalators 6.2 MOVING WALKS 6.2.1 Protection of Floor Openings 6.2.2 Protection of Supports and Machine Spaces Against Fire
247	6.2.3 Construction Requirements
249	6.2.3.7 Treadway Width
251	6.2.4 Rated Speed 6.2.4 Treadway Speed
252	6.2.5 Driving Machine, Motor, and Brake 6.2.6 Operating and Safety Devices
256	6.2.7 Lighting, Access, and Electrical Work
257	6.2.8 Outdoor Moving Walks
258	Part 7 Dumbwaiters and Material Lifts 7.1 POWER AND HAND DUMBWAITERS WITHOUT AUTOMATIC TRANSFER DEVICES 7.1.1 Construction of Hoistways and Hoistway Enclosures 7.1.2 Pits 7.1.3 Location and Guarding of Counterweights 7.1.4 Vertical Car Clearances and Runbys for Cars and Counterweights
259	7.1.5 Horizontal Car and Counterweight Clearances 7.1.6 Protection of Spaces Below Hoistway 7.1.7 Machinery Spaces, Machine Rooms, Control Spaces, and Control Rooms 7.1.8 Electrical Equipment, Wiring, Pipes, Ducts, and HVAC in Hoistways and Machine Rooms
260	7.1.9 Machinery and Sheave Beams, Supports, and Foundations 7.1.10 Guarding of Equipment 7.1.11 Protection of Hoistway Openings
261	7.1.12 Hoistway Door Locking Devices, Access Switches, and Unlocking Devices
262	7.1.13 Power Operation of Hoistway Doors and Car Doors or Gates 7.1.14 Identification 7.2 ELECTRIC AND HAND DUMBWAITERS WITHOUT AUTOMATIC TRANSFER DEVICES 7.2.1 Car Enclosures, Car Doors and Gates, and Car Illumination
263	7.2.2 Car Frames and Platforms
264	7.2.3 Capacity and Loading 7.2.4 Car and Counterweight Safeties
265	7.2.5 Speed Governors 7.2.6 Suspension Means 7.2.6.4 Factors of Safety for Wire Rope andChains
266	7.2.7 Counterweights 7.2.8 Buffers and Bumpers 7.2.9 Car and Counterweight Guide Rails, Guide- Rail Supports and Fastenings 7.2.10 Driving Machines and Sheaves 7.2.8.1 Minimum Spring Buffer Strokes 7.2.8.2 Minimum Oil Buffer Strokes
267	7.2.11 Terminal Stopping Devices 7.2.12 Operating Devices and Control Equipment
268	7.2.13 Layout Data 7.2.14 Welding for Dumbwaiters 7.3 HYDRAULIC DUMBWAITERS WITHOUT AUTOMATIC TRANSFER DEVICES 7.3.1 Car Enclosures, Car Doors and Gates, and Car Illumination 7.3.2 Car Frames and Platforms 7.3.3 Capacity and Loading 7.3.4 Car and Counterweight Safeties 7.3.5 Hydraulic Driving Machines 7.3.6 Rope, Rope Connections, and Sheaves 7.3.7 Counterweights
269	7.3.8 Buffers and Bumpers 7.3.9 Guide Rails, Guide- Rail Supports, and Fastenings 7.3.10 Terminal Stopping Devices 7.3.11 Operating Devices and Control Equipment 7.3.12 Layout Data
270	7.4 MATERIAL LIFTS WITHOUT AUTOMATIC TRANSFER DEVICES 7.4.1 General Requirement 7.4.2 Classification 7.4.3 Construction of Hoistways and Hoistway Enclosures 7.4.4 Pits 7.4.5 Location and Guarding of Counterweights 7.4.6 Vertical Clearances and Runbys for Cars and Counterweights
271	7.4.3 Type B Material Lifts
272	7.4.7 Horizontal Car and Counterweight Clearances 7.4.8 Protection of Spaces Below Hoistways 7.4.9 Machinery Spaces, Machine Rooms, Control Spaces, and Control Rooms 7.4.10 Equipment in Hoistways and Machine Rooms 7.4.11 Machinery and Sheave Beams, Supports, and Foundations 7.4.12 Guarding of Equipment and Standard Railing 7.4.13 Protection of Hoistway Landing Openings
273	7.4.14 Hoistway Door Locking Devices and Electric Contacts, and Hoistway Access Switches 7.4.15 Power Operation of Hoistway Doors and Car Doors and Gates
274	7.4.16 Identification of Equipment 7.5 ELECTRIC MATERIAL LIFTS WITHOUT AUTOMATIC TRANSFER DEVICES 7.5.1 Car Enclosures, Car Doors and Gates, and Car Illumination
275	7.5.2 Car Frames and Platforms 7.5.3 Capacity and Loading 7.5.4 Car and Counterweight Safeties
276	7.5.5 Speed Governors 7.5.6 Suspension Ropes and Their Connections 7.5.7 Counterweights 7.5.8 Buffers and Bumpers 7.5.9 Car and Counterweight Guide Rails, Guide- Rail Supports, and Fastenings
277	7.5.10 Driving Machine and Sheaves 7.5.11 Terminal Stopping Devices 7.5.12 Operating Devices and Control Equipment
279	7.5.13 Layout Data 7.5.14 Welding 7.6 HYDRAULIC MATERIAL LIFTS WITHOUT AUTOMATIC TRANSFER DEVICES 7.6.1 Hoistways, Hoistway Enclosures, and Related Construction 7.6.2 Mechanical Equipment
280	7.6.3 Hydraulic Driving Machines 7.6.4 Valves, Pressure Pipings, and Fittings 7.6.5 Counterweight Ropes, Rope Connections, and Sheaves 7.6.6 Hydraulic Machines and Tanks 7.6.7 Terminal Stopping Device 7.6.8 Operating Devices and Control Equipment
281	7.6.9 Layout Data 7.7 AUTOMATIC TRANSFER DEVICES 7.7.1 General 7.7.2 Clearances 7.7.3 Guarding 7.7.4 Floor Level 7.8 POWER DUMBWAITERS WITH AUTOMATIC TRANSFER DEVICES 7.8.1 Requirements 7.8.2 Safety Devices 7.8.3 Emergency Stop Switch 7.8.4 Structural Capacity Load 7.9 ELECTRIC MATERIAL LIFTS WITH AUTOMATIC TRANSFER DEVICES
282	7.9.1 Hoistways, Hoistway Enclosures, and Related Construction 7.9.2 Machinery and Equipment
283	7.10 HYDRAULIC MATERIAL LIFTS WITH AUTOMATIC TRANSFER DEVICES 7.11 MATERIAL LIFTS WITH OBSCURED TRANSFER DEVICES 7.9.2.13 Minimum Spring Buffer Strokes 7.9.2.14 Minimum Oil Buffer Strokes
284	Part 8 General Requirements 8.1 SECURITY 8.1.1 General 8.1.2 Group 1: Restricted 8.1.3 Group 2: Authorized Personnel 8.1.4 Group 3: Emergency Operation
285	8.1.5 Group 4: Other 8.2 DESIGN DATA AND FORMULAS 8.2.1 Minimum Rated Load for Passenger Elevators 8.2.2 Electric Elevator Car Frame and Platform Stresses and Deflections
286	8.2.1.2 Minimum Rated Load for Passenger Elevators
288	8.2.3 Impact on Buffer Supports 8.2.2.5.1 Turning Moment Based on Class of Loading
289	8.2.4 Gravity Stopping Distances 8.2.5 Governor Tripping Speeds 8.2.6 Stopping Distances for Car and Counterweight Safeties 8.2.7 Factors of Safety for Suspension Wire Ropes for Power Elevators 8.2.8 Hydraulic Jack and Piping
290	8.2.4 Gravity Stopping Distances
291	8.2.5 Maximum Governor Tripping Speeds
293	8.2.6 Stopping Distances for Type B Car and Counterweight Safeties
296	8.2.7 Minimum Factors of Safety of Suspension Members of Power Passenger and Freight Elevators
298	8.2.8.1.1 Allowable Gross Loads
300	8.2.9 Hydraulic Elevator Car Frame and Platform Stresses and Deflections
301	8.2.9.1.3 Load Distribution
302	8.2.10 Minimum Oil Buffer Strokes: Inclined Elevators 8.2.11 Stopping Distances for Car and Counterweight Safeties for Inclined Elevators
303	8.2.12 Material Lifts With Automatic Transfer Devices, Design Data, and Formulas 8.3 ENGINEERING TESTS, TYPE TESTS, AND CERTIFICATION 8.3.1 General Requirements for Tests and Certification
304	8.3.2 Type Tests of Car and Counterweight Oil Buffers
306	8.3.3 Type Tests of Interlocks, Combination Mechanical Locks and Electric Contacts, and Door or Gate Electric Contacts
308	8.3.4 Entrance Fire Type Tests 8.3.5 Type Tests for Hydraulic Control Valves
309	8.3.6 Escalator Brake Type Test 8.3.7 Vertical Burn Engineering Test
310	8.3.8 Test Method for Evaluating Room Fire Growth Contribution of Textile Wall Covering 8.3.9 Engineering Tests for Hydraulic Overspeed Valves 8.3.10 Engineering Tests: Safety Nut and Speed Limiting Devices of Screw- Column Elevators 8.3.11 Step and Pallet Fatigue Engineering Test
311	8.3.12 Suspension- Member Tests 8.4 ELEVATOR SAFETY REQUIREMENTS FOR SEISMIC RISK ZONE 2 OR GREATER
312	8.4.1 Horizontal Car and Counterweight Clearances 8.4.2 Machinery and Sheave Beams, Supports, and Foundations 8.4.3 Guarding of Equipment 8.4.3.1.3 Arc of Contact
313	8.4.4 Car Enclosures, Car Doors and Gates, and Car Illumination 8.4.5 Guiding Members and Position Restraints 8.4.6 Car and Counterweight Safeties 8.4.7 Counterweights
314	8.4.8 Car and Counterweight Guide Rail Systems
315	8.4.8.2-1 12 kg/m (8 lb/ft) Guide-Rail Bracket Spacing
316	8.4.8.2-2 16.5 kg/m (11 lb/ft) Guide-Rail Bracket Spacing
317	8.4.8.2-3 18 kg/m (12 lb/ft) Guide-Rail Bracket Spacing
318	8.4.8.2-4 22.5 kg/m (15 lb/ft) Guide-Rail Bracket Spacing
319	8.4.8.2-5 27.5 kg/m (18.5 lb/ft) Guide-Rail Bracket Spacing
320	8.4.8.2-6 33.5 kg/m (22.5 lb/ft) Guide-Rail Bracket Spacing
321	8.4.8.2-7 44.5 kg/m (30 lb/ft) Guide-Rail Bracket Spacing
322	8.4.8.2-8 Car and Counterweight Load Factor
324	8.4.8.7 Stresses and Deflections of Guide-Rail Brackets and Supports
325	8.4.9 Driving Machines and Sheaves 8.4.10 Emergency Operation and Signaling Devices 8.4.8.9 Guide-Rail Axes
326	8.4.10.1.1 Earthquake Elevator Equipment Requirements Diagrammatic Representation
327	8.4.11 Hydraulic Elevators
328	8.4.10.1.3 Earthquake Emergency Operation Diagrammatic Representation
329	8.4.11.13 Pipe Support Spacing
333	8.5 ESCALATOR AND MOVING WALK SAFETY REQUIREMENT FOR SEISMIC RISK ZONE 2 OR GREATER 8.5.1 Balustrade Construction 8.5.2 Truss Members 8.4.12.2.2 Maximum Allowable Deflection
334	8.5.3 Supporting Connections Between the Truss and the Building 8.5.4 Earthquake Protective Devices 8.6 MAINTENANCE, REPAIR, REPLACEMENT, AND TESTING 8.6.1 General Requirements
336	8.6.2 Repairs
337	8.6.3 Replacements
338	8.6.4 Maintenance and Testing of Electric Elevators
343	8.6.5 Maintenance and Testing of Hydraulic Elevators 8.6.4.20.4 Brake Test Loads
345	8.6.6 Maintenance and Testing of Elevators With Other Types of Driving Machines 8.6.7 Maintenance and Testing of Special Application Elevators
347	8.6.8 Maintenance and Testing of Escalators and Moving Walks
350	8.6.9 Maintenance of Moving Walks 8.6.8.15.19(e)
351	8.6.10 Maintenance and Testing of Dumbwaiters and Material Lifts 8.6.11 Special Provisions
353	8.7 ALTERATIONS 8.7.1 General Requirements 8.7.2 Alterations to Electric Elevators
361	8.7.3 Alterations to Hydraulic Elevators
365	8.7.4 Alterations to Elevators With Other Types of Driving Machines 8.7.5 Alterations to Special Application Elevators
366	8.7.6 Alterations to Escalators and Moving Walks
368	8.7.7 Alterations to Dumbwaiters and Material Lifts 8.8 WELDING 8.8.1 Qualification of Welders 8.8.2 Welding Steel 8.8.3 Welding Metals Other Than Steel 8.9 CODE DATA PLATE 8.9.1 Required Information
369	8.9.2 Location 8.9.3 Material and Construction 8.10 ACCEPTANCE INSPECTIONS AND TESTS 8.10.1 General Requirements for Acceptance Inspections and Tests 8.10.2 Acceptance Inspection and Tests of Electric Elevators
376	8.10.3 Acceptance Inspection and Tests of Hydraulic Elevators
380	8.10.4 Acceptance Inspection and Tests of Escalators and Moving Walks
384	8.10.5 Acceptance Inspection and Tests of Other Equipment
385	8.11 PERIODIC INSPECTIONS AND WITNESSING OF TESTS 8.11.1 General Requirements for Periodic Inspections and Witnessing of Tests
386	8.11.2 Periodic Inspection of Electric Elevators
388	8.11.3 Periodic Inspection of Hydraulic Elevators
390	8.11.4 Periodic Inspection of Escalators and Moving Walks 8.11.5 Periodic Inspection of Other Equipment
391	8.12 FLOOD RESISTANCES 8.12.1 Flood- Resistant Design and Construction
392	Part 9 Reference Codes, Standards, and Specifications
393	9.1 Reference Documents
399	9.2 Procurement Information
401	NONMANDATORY APPENDICES A CONTROL SYSTEM
403	B DOOR LANDING AND UNLOCKING ZONES
404	C LOCATION OF TOP EMERGENCY EXIT
405	D RATED LOAD AND CAPACITY PLATES FOR PASSENGER ELEVATORS
406	E ELEVATOR REQUIREMENTS FOR PERSONS WITH PHYSICALDISABILITIES IN JURISDICTIONS ENFORCING NBCC
414	F ASCENDING CAR OVERSPEED AND UNINTENDED CAR MOVEMENT PROTECTION
418	G TOP OF CAR CLEARANCE
423	H PRIVATE RESIDENCE ELEVATOR GUARDING ( 5.3.1.6.2)
424	I ESCALATOR AND MOVING WALK DIAGRAMS
431	J RELATIONSHIP OF PIT LADDER TO HOISTWAY DOOR UNLOCKING MEANS
432	K BEVELING AND CLEARANCE REQUIREMENTS ( 7.4.7.4)
433	L INDEX OF ALTERATION REQUIREMENTS FOR ELECTRIC ELEVATORS, HYDRAULIC ELEVATORS, ESCALATORS, AND MOVING WALKS
438	M INERTIA APPLICATION FOR TYPE A SAFETY DEVICE LOCATION OF TEST WEIGHT [ 8.10.2.2.2( ii)( 2)]
439	N RECOMMENDED INSPECTION AND TEST INTERVALS IN ” MONTHS”
447	P PLUNGER GRIPPER STOPPING DISTANCES
448	Q EXPLANATORY FIGURES FOR THE DEFINITIONS OF ELEVATOR MACHINERY SPACE, MACHINE ROOM, CONTROL SPACE, CONTROL ROOM, REMOTE MACHINE ROOM, OR REMOTE CONTROL ROOM
451	R INSPECTION OPERATION AND HOISTWAY ACCESS SWITCH OPERATION HIERARCHY
453	S VERTICALLY SLIDING DOORS — ILLUSTRATIONS OF DETECTION ZONES ( 2.13.3.4)
466	T INSPECTION AND REPLACEMENT OF STEEL WIRE ROPES
468	U DESIGN REQUIREMENTS — TRACTION ELEVATOR SUSPENSION SYSTEM
469	INDEX
495	INTERPRETATIONS No. 31
497	NO. 31
527	INDEX