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eLibrary > ASME A17.3 Safety Code for Existing Elevators and Escalators >

ASME A17.3 Safety Code for Existing Elevators and Escalators, 2017

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ASME A17.3 Safety Code for Existing Elevators and Escalators, 2017

CONTENTS
FOREWORD
ASME A17 ELEVATOR AND ESCALATOR COMMITTEE ROSTER
PREFACE
ASME A17.3-2017 SUMMARY OF CHANGES
Part I Introduction [Go to Page]
SECTION 1.1 SCOPE [Go to Page]
1.1.1 Equipment Covered by This Code
1.1.2 Equipment Not Covered by This Code
SECTION 1.2 APPLICATION OF CODE
SECTION 1.3 PURPOSE AND EXCEPTIONS [Go to Page]
1.3.1 Purpose
1.3.2 Exceptions
SECTION 1.4 DEFINITIONS
SECTION 1.5 ALTERATIONS, MAINTENANCE, ANDINSPECTIONS AND TESTS
SECTION 1.6 REFERENCE DOCUMENTS
Part II Hoistways and Related Construction for Electric Elevators [Go to Page]
SCOPE
SECTION 2.1 HOISTWAYS [Go to Page]
2.1.1 Hoistway Construction
2.1.2 Windows in Hoistway Enclosures
2.1.3 Projections in Hoistway
2.1.4 Pipes, Air Ducts, and Wiring
2.1.5 Counterweight Guards
SECTION 2.2 MACHINE ROOMS AND MACHINERY SPACES [Go to Page]
2.2.1 Enclosures
2.2.2 Access to Machine Rooms and Machinery Spaces
2.2.3 Lighting
2.2.4 Ventilation
2.2.5 Pipes, Air Ducts, and Wiring
2.2.6 Protection From Weather
SECTION 2.3 PITS [Go to Page]
2.3.1 Access to Pits
2.3.2 Drains
2.3.3 Stop Switch
SECTION 2.4 CLEARANCES AND RUNBYS [Go to Page]
2.4.1 Horizontal Car Clearances
2.4.2 Bottom Car Clearances
2.4.3 Bottom Car and Counterweight Runby
2.4.4 Top Car Clearance
2.4.5 Landing Sill Clearance
SECTION 2.5 PROTECTION OF SPACES BELOW HOISTWAYS
SECTION 2.6 HOISTWAY ENTRANCES [Go to Page]
2.6.1 Doors or Gates Required
2.6.2 Closing of Hoistway Doors
2.6.3 Hoistway-Door Vision Panels
2.6.4 Door Hangers
2.6.5 Nonshearing Astragals
2.6.6 Pull Straps
2.6.7 Bottom Guides
SECTION 2.7 HOISTWAY-DOOR LOCKING DEVICES, PARKINGDEVICES, AND ACCESS [Go to Page]
2.7.1 Hoistway-Door or Hoistway-Gate Locking Devices
2.7.2 Closed Position of Hoistway Doors
2.7.3 Elevator Parking Device
2.7.4 Access to Hoistway
2.7.5 Restricted Opening of Hoistway Doors and/or Car Doors on Passenger Elevators
2.7.6 Hoistway Emergency Door Contacts
SECTION 2.8 POWER OPERATION OF DOORS AND GATES [Go to Page]
2.8.1 Kinetic Energy and Force Limitations for Power-Operated Horizontally Sliding Doors
2.8.2 Reopening Device for Power-Operated Car Doors or Gates
Part III Machinery and Equipment for Electric Elevators [Go to Page]
SCOPE
SECTION 3.1 BUFFERS AND BUMPERS
SECTION 3.2 COUNTERWEIGHTS
SECTION 3.3 CAR FRAMES AND PLATFORMS [Go to Page]
3.3.1 Car Platforms
3.3.2 Platform Guards (Aprons)
3.3.3 Hinged Platform Sills
3.3.4 Floating (Movable) Platforms
3.3.5 Protection of Platforms Against Fire
SECTION 3.4 CAR ENCLOSURES [Go to Page]
3.4.1 Car Enclosures
3.4.2 Car Doors and Gates
3.4.3 Location of Car Doors and Gates in Relation to Hoistway Door
3.4.4 Emergency Exits
3.4.5 Car Illumination
3.4.6 Protection of Light Bulbs and Tubes
SECTION 3.5 SAFETIES [Go to Page]
3.5.1 Car Safeties
3.5.2 Counterweight Safeties
3.5.3 Safeties to Stop Ascending Cars or Counterweights Prohibited
3.5.4 Application and Release of Safeties
3.5.5 Maximum Permissible Movement of Governor Rope to Operate the Safety Mechanism
3.5.6 Rail Lubricants and Lubrication Plate
3.5.7 Overall Length of Guide Rails
SECTION 3.6 SPEED GOVERNORS [Go to Page]
3.6.1 Speed Governor Overspeed and Car Safety Mechanism Switches
3.6.2 Governor Ropes
SECTION 3.7 CAPACITY AND LOADING [Go to Page]
3.7.1 Minimum Rated Load for Passenger Elevators
3.7.2 Use of Partitions for Reducing Inside Net Platform Area
3.7.3 Minimum Rated Load for Freight Elevators
3.7.4 Capacity Plates
3.7.5 Signs on Freight Elevators
SECTION 3.8 DRIVING MACHINES AND SHEAVES [Go to Page]
3.8.1 General Requirements
3.8.2 Winding Drum Machines
3.8.3 Indirect-Drive Machines
3.8.4 Brakes
SECTION 3.9 TERMINAL STOPPING DEVICES [Go to Page]
3.9.1 Normal Terminal Stopping Devices
3.9.2 Final Terminal Stopping Devices
SECTION 3.10 OPERATING DEVICES AND CONTROL EQUIPMENT [Go to Page]
3.10.1 Types of Operating Devices
3.10.2 Car-Switch Operation Elevators
3.10.3 Top-of-Car Operating Devices
3.10.4 Electrical Protective Devices
3.10.5 Power Supply Line Disconnecting Means
3.10.6 Phase Reversal and Failure Protection
3.10.7 Operating of the Driving Machine With a Hoistway Door Unlocked or a Hoistway Door or a Car Door Not in the Closed Position
3.10.8 Release and Application of Driving Machine Brakes
3.10.9 Control and Operating Circuit Requirements
3.10.10 Absorption of Regenerated Power
3.10.11 Reserved for Future Use
3.10.12 System to Monitor and Prevent Automatic Operation of the Elevator With Faulty Door Contact Circuits
SECTION 3.11 EMERGENCY OPERATION AND SIGNALING DEVICES [Go to Page]
3.11.1 Car Emergency Signaling Devices
3.11.2 Operations of Elevators Under Standby (Emergency) Power
3.11.3 Firefighters’ Service
SECTION 3.12 SUSPENSION MEANS AND THEIR CONNECTIONS [Go to Page]
3.12.1 Suspension Means
3.12.2 Rope Data Tag
3.12.3 Factor of Safety
3.12.4 Minimum Number and Diameter of Suspension Ropes
3.12.5 Suspension Rope Equalizers
3.12.6 Securing of Suspension Wire Ropes to Winding Drums
3.12.7 Spare Rope Turns on Winding Drums
3.12.8 Suspension Rope Fastenings
3.12.9 Auxiliary Rope Fastening Devices
Part IV Hydraulic Elevators [Go to Page]
SCOPE
SECTION 4.1 HOISTWAY, HOISTWAY ENCLOSURES, AND RELATED CONSTRUCTION
SECTION 4.2 MECHANICAL EQUIPMENT [Go to Page]
4.2.1 Buffers and Bumpers
4.2.2 Car Frames and Platforms
4.2.3 Car Enclosures
4.2.4 Capacity and Loading
SECTION 4.3 DRIVING MACHINES [Go to Page]
4.3.1 Connection to Driving Machine
4.3.2 Plunger Stops
4.3.3 Hydraulic Elevators
SECTION 4.4 VALVES, SUPPLY PIPING, AND FITTINGS [Go to Page]
4.4.1 Pump Relief Valve
4.4.2 Check Valve
4.4.3 Mechanically Controlled Operating Valves
4.4.4 Supply Piping and Fittings
SECTION 4.5 TANKS [Go to Page]
4.5.1 General Requirements
4.5.2 Pressure Tanks
SECTION 4.6 TERMINAL STOPPING DEVICES
SECTION 4.7 OPERATING DEVICES AND CONTROL EQUIPMENT [Go to Page]
4.7.1 Operating Devices
4.7.2 Top-of-Car Operating Devices
4.7.3 Anticreep Leveling Devices
4.7.4 Electrical Protective Devices
4.7.5 Power Supply Line Disconnecting Means
4.7.6 Devices for Making Hoistway-Door Interlocks or Electric Contacts, or Car Door or Gate Electric Contacts Inoperative
4.7.7 Control and Operating Circuit Requirements
4.7.8 Emergency Operation and Signaling Devices
SECTION 4.8 ADDITIONAL REQUIREMENTS FOR COUNTERWEIGHTED HYDRAULIC ELEVATORS
SECTION 4.9 ADDITIONAL REQUIREMENTS FOR ROPED-HYDRAULIC ELEVATORS [Go to Page]
4.9.1 Top Car Clearance
4.9.2 Top Counterweight Clearance and Bottom Counterweight Runby
4.9.3 Protection of Spaces Below Hoistway
4.9.4 Piston Stops
4.9.5 Piston Connections
4.9.6 Car Safety Devices
4.9.7 Speed Governors
4.9.8 Sheaves
4.9.9 Slack-Rope Device
4.9.10 Suspension Ropes and Their Connections
Part V Escalators [Go to Page]
SCOPE
SECTION 5.1 CONSTRUCTION [Go to Page]
5.1.1 Balustrades
5.1.2 Clearance Between Skirt and Step
5.1.3 Guards at Ceiling or Soffit Intersections
5.1.4 Antislide Device
5.1.5 Handrails
5.1.6 Handrail Guards
5.1.7 Step Risers
5.1.8 Slotting of Step Treads
5.1.9 Combplates
5.1.10 Deck Barricades
5.1.11 Step/Skirt Performance Index
SECTION 5.2 BRAKES [Go to Page]
5.2.1 General Requirements
5.2.2 Main Drive Shaft Brake
SECTION 5.3 OPERATING AND SAFETY DEVICES [Go to Page]
5.3.1 Starting Switches
5.3.2 Emergency Stop Buttons
5.3.3 Speed Governor
5.3.4 Broken Step-Chain Device
5.3.5 Application of Brake
5.3.6 Broken Drive-Chain Device
5.3.7 Skirt Obstruction Device
5.3.8 Rolling Shutter Device
5.3.9 Reversal Stop Device
5.3.10 Tandem Operation
5.3.11 Caution Signs
5.3.12 Escalator Smoke Detectors
SECTION 5.4 LIGHTING OF ESCALATORS
SECTION 5.5 ENTRANCE AND EGRESS ENDS [Go to Page]
5.5.1 Combplates
5.5.2 Distinction Between Comb and Step
5.5.3 Adjacent Floor Surfaces
5.5.4 Safety Zone
5.5.5 Landing Access Plates
Part VI Dumbwaiters [Go to Page]
SCOPE
SECTION 6.1 HOISTWAY, HOISTWAY ENCLOSURES, AND RELATED CONSTRUCTION [Go to Page]
6.1.1 Machine Rooms and Machinery Spaces
6.1.2 Clearances and Runbys
6.1.3 Doors or Gates Required
6.1.4 Closing of Hoistway Doors
6.1.5 Hoistway-Door Vision Panels
6.1.6 Hoistway-Door or Gate Locking Devices
6.1.7 Parking Devices
6.1.8 Access to Hoistway
6.1.9 Kinetic Energy and Force Limitations for Power-Operated Vertically Sliding Doors
6.1.10 Reopening Devices for Power-Operated Car Doors or Gates
SECTION 6.2 MACHINERY AND EQUIPMENT FOR HAND AND ELECTRIC DUMBWAITERS [Go to Page]
6.2.1 Buffers and Bumpers
6.2.2 Car Frames and Platforms
6.2.3 Car Enclosures
6.2.4 Car Doors and Gates
6.2.5 Emergency Exits
6.2.6 Car Illumination
6.2.7 Safeties
6.2.8 Capacity and Loading
6.2.9 Driving Machines and Sheaves
6.2.10 Normal Terminal Stopping Devices
6.2.11 Final Terminal Stopping Devices
6.2.12 Operating Devices and Control Equipment
6.2.13 Emergency Operation and Signaling Devices
6.2.14 Suspension Means
6.2.15 Chain Data
6.2.16 Factor of Safety
6.2.17 Minimum Number and Diameter of Suspension Ropes
6.2.18 Suspension Rope Fastenings
SECTION 6.3 MACHINERY AND EQUIPMENT FOR HYDRAULIC DUMBWAITERS [Go to Page]
6.3.1 Car Buffers or Bumpers
6.3.2 Counterweights
6.3.3 Car Frames and Platforms
6.3.4 Car Enclosures, Car Doors and Gates, and Car Illumination
6.3.5 Car Safeties
6.3.6 Counterweight Safeties
6.3.7 Capacity and Loading
6.3.8 Driving Machines, Valves, Supply Piping, Fittings, and Tanks
6.3.9 Terminal Stopping Devices
6.3.10 Operating Devices and Control Equipment
6.3.11 Additional Requirements for Counterweighted Hydraulic Dumbwaiters
Part VII Hand Elevators [Go to Page]
SCOPE
SECTION 7.1 HOISTWAY, HOISTWAY ENCLOSURES, AND RELATED CONSTRUCTION [Go to Page]
7.1.1 Enclosures for Machines and Control Equipment
7.1.2 Access to Machines and Sheaves
7.1.3 Pit
7.1.4 Clearances and Runbys
7.1.5 Hoistway Entrances: Type of Entrances
7.1.6 Hoistway Gates for Landing Openings of Hand Elevators
7.1.7 Closing of Hoistway Doors
7.1.8 Hoistway-Door Vision Panel
7.1.9 Hoistway-Door Locking Devices for Hand Elevator
SECTION 7.2 MACHINERY AND EQUIPMENT [Go to Page]
7.2.1 Buffers and Bumpers
7.2.2 Counterweights
7.2.3 Car Frames and Platforms
7.2.4 Car Enclosures
7.2.5 Emergency Exit
7.2.6 Illumination of Cars and Lighting Fixtures
7.2.7 Car Safety Devices
7.2.8 Capacity and Loading
7.2.9 Use of Partitions for Reducing Inside Net Platform Area
7.2.10 Driving-Machine Brakes
7.2.11 Power Attachments Not Permitted
7.2.12 Machinery and Sheave Beams, Supports for Hand Elevators
7.2.13 Suspension Means: Type and Number Required
7.2.14 Factor of Safety
7.2.15 Length of Suspension Members
7.2.16 Capacity Plate
7.2.17 Suspension Member Data
Part VIII Sidewalk Elevators [Go to Page]
SCOPE
SECTION 8.1 HOISTWAY, HOISTWAY ENCLOSURES, AND MACHINE ROOMS [Go to Page]
8.1.1 Hoistway, Hoistway Enclosures, and Machine Rooms
8.1.2 Location of Hoistway and Top-Landing Opening
8.1.3 Maximum Size of Opening Permitted in Sidewalk
8.1.4 Protection of Horizontal Openings in Sidewalks or Other Exterior Areas
8.1.5 Hinged-Type Swinging Doors
8.1.6 Vertically Lifting Covers
SECTION 8.2 MACHINERY AND EQUIPMENT [Go to Page]
8.2.1 General Requirements
8.2.2 Buffers and Bumpers
8.2.3 Counterweights
8.2.4 Car Frames and Platforms
8.2.5 Bow-Irons and Stanchions
8.2.6 Car Enclosures and Car Doors and Gates
8.2.7 Car and Counterweight Safeties and Governors
8.2.8 Capacity and Loading
8.2.9 Driving Machines and Sheaves
8.2.10 Terminal Stopping Devices
8.2.11 Locking Devices for Hinged Swinging Doors or Vertically Lifting Covers in Sidewalks or Other Areas Exterior to the Building
8.2.12 Requirements for Electrical Wiring and Electrical Equipment
8.2.13 Clearance Between Loading Side of Car Platforms and Hoistway Enclosures
8.2.14 Operating Devices and Control Equipment of Sidewalk Elevator
Part IX Moving Walks [Go to Page]
SCOPE
SECTION 9.1 PROTECTION OF FLOOR OPENINGS [Go to Page]
9.1.1 Protection Required
SECTION 9.2 PROTECTION OF SUPPORTS AND MACHINE SPACES AGAINST FIRE [Go to Page]
9.2.2 Protection Required
SECTION 9.3 CONSTRUCTION REQUIREMENTS [Go to Page]
9.3.1 Angle of Inclination
9.3.2 Geometry
9.3.3 Balustrades
9.3.4 Handrails
9.3.5 Pallet-Type Treadway
9.3.6 Belt-Type Treadway
9.3.7 Width
SECTION 9.4 ENTRANCE AND EGRESS ENDS [Go to Page]
9.4.1 Combplates
9.4.2 Distinction Between Comb and Step
9.4.3 Adjacent Floor Surfaces
SECTION 9.5 DRIVING MACHINE, MOTOR, AND BRAKE [Go to Page]
9.5.1 Brakes
SECTION 9.6 OPERATING AND SAFETY DEVICES [Go to Page]
9.6.1 General
9.6.2 Starting Switch
9.6.3 Emergency Stop Buttons
9.6.4 Speed Governor
9.6.5 Application of an Electrically Released Brake
9.6.6 Broken Drive-Chain Switch
9.6.7 Rolling Shutter Device
9.6.8 Reversal Stop Device
9.6.9 Tandem Operation
9.6.10 Disconnected Motor Safety Device
9.6.11 Signs
9.6.12 Broken Treadway Device
9.6.13 Moving Walk Smoke Detectors
SECTION 9.7 LIGHTING AND ACCESS [Go to Page]
9.7.1 Lighting of Treadway
9.7.2 Access to Interior
Part X Private Residence Elevators [Go to Page]
SCOPE
SECTION 10.1 HOISTWAY, HOISTWAY ENCLOSURES, AND RELATED CONSTRUCTION [Go to Page]
10.1.1 Hoistway Enclosure Construction
10.1.2 Pits
10.1.3 Top Car Clearance
10.1.4 Protection of Hoistway Openings
10.1.5 Pipes in Hoistways
10.1.6 Horizontal Car Clearances
10.1.7 Guarding of Suspension Means
SECTION 10.2 CARS [Go to Page]
10.2.1 Car Frames and Platforms
10.2.2 Car Enclosure
10.2.3 Number of Compartments
10.2.4 Car Doors and Gates
10.2.5 Light in Car
SECTION 10.3 COUNTERWEIGHTS [Go to Page]
10.3.1 General Requirements
10.3.2 Location and Guarding of Counterweights
SECTION 10.4 SAFETIES AND GOVERNORS [Go to Page]
10.4.1 Safeties Required
10.4.2 Operation of Safeties
10.4.3 Application of Safeties
10.4.4 Location of Speed Governor
10.4.5 Opening of the Brake Circuit on Safety Application
10.4.6 Governor Ropes
SECTION 10.5 CAR AND COUNTERWEIGHT GUIDE RAILS AND FASTENINGS [Go to Page]
10.5.1 Material
10.5.2 Fastenings, Deflections, and Joints
10.5.3 Extension of Guide Rails at Top and Bottom of Hoistway
SECTION 10.6 CAR AND COUNTERWEIGHT BUFFERS [Go to Page]
10.6.1 Buffers and Buffer Supports
SECTION 10.7 DRIVING MACHINES, SHEAVES, AND THEIR SUPPORTS [Go to Page]
10.7.1 Overhead Machinery Beams and Supports
10.7.2 Material for Sheaves and Drums and Minimum Diameter
10.7.3 Fastening of Driving Machines and Sheaves to Underside of Overhead Beams
10.7.4 Factor of Safety for Overhead Beams and Supports
10.7.5 Hydraulic Driving Machine
10.7.6 Screw Machines
10.7.7 Rack-and-Pinion Machine
10.7.8 Set Screw Fastenings
10.7.9 Friction Gearing, Clutch Mechanisms, or Couplings
10.7.10 Use of Cast Iron in Gears
10.7.11 Driving-Machine Roller Chains and Sprockets
10.7.12 Driving-Machine Brakes
10.7.13 Emergency Operation (Manual)
SECTION 10.8 TERMINAL STOPPING DEVICES [Go to Page]
10.8.1 Stopping Devices Required
10.8.2 Operation of Stopping Devices
SECTION 10.9 OPERATING DEVICES AND CONTROL EQUIPMENT [Go to Page]
10.9.1 Type of Operation
10.9.2 Control and Operating Circuit Requirements
10.9.3 Key-Operated Switches
10.9.4 Phase Reversal and Failure Protection
10.9.5 Emergency Stop Switch
10.9.6 Slack-Rope and Slack-Chain Devices for Winding Drum and Roller-Chain-Type Driving Machines
SECTION 10.10 EMERGENCY SIGNAL DEVICES [Go to Page]
10.10.1 Emergency Signal
SECTION 10.11 LIMITATION OF LOAD, SPEED, AND RISE [Go to Page]
10.11.1 Capacity
10.11.2 Speed
10.11.3 Rise
SECTION 10.12 MARKING PLATES [Go to Page]
10.12.1 Capacity Plate
SECTION 10.13 SUSPENSION MEANS [Go to Page]
10.13.1 Types Permitted
10.13.2 Suspension Ropes
10.13.3 Factor of Safety of Suspension Means
10.13.4 Arc of Contact of Suspension Means on Sheaves and Sprockets
10.13.5 Spare Rope Turns on Winding Drums
10.13.6 Securing of Wire Suspension Ropes to Winding Drums
10.13.7 Splicing and Replacement of Suspension Ropes
10.13.8 Fastening of Wire Rope Suspension Means to the Car or to the Counterweight
10.13.9 Replacement of Chains and Sprockets
Figures [Go to Page]
Figure 3.7.1 Inside Net Platform Areas for Passenger Elevators
Figure 5.3.11 Caution Sign
Figure A-1 Distance Between Swinging Hoistway Doors and Car Doors and Gates
Figure A-2 Distance Between Sliding Hoistway Doors and Car Doors and Gates
Figure A-3 Typical Sliding Hoistway Door Space Guard and Sight Guard
Figure A-4 Typical Swinging Hoistway Door Space Guards
Figure A-5 Typical Space Guard for Swinging Doors With Cutout for Doorknob, Handle, or Pull Bar
Figure B-1 Pusher-Type Roped-Hydraulic Elevators
Figure B-2 Puller-Type Roped-Hydraulic Elevators
Tables [Go to Page]
Table 1.6(a) Reference Documents
Table 1.6(b) Procurement Information
Table 3.12.3 Minimum Factors of Safety for Suspension Wire Ropes
Table 3.7.1 Maximum Inside Net Platform Areas for the Various Rated Loads
NONMANDATORY APPENDIX A DISTANCES BETWEEN HOISTWAY DOORS AND CAR DOORS OR GATES
NONMANDATORY APPENDIX B TYPES OF ROPED-HYDRAULIC ELEVATORS
NONMANDATORY APPENDIX C A17.1-1987, Rules 211.3–211.8 [Go to Page]
Rule 211.3 Firefighters' Service — Automatic Elevators [Go to Page]
211.3a Phase I Emergency Recall Operation.
211.3b Smoke Detectors.
211.3c Phase II Emergency In-Car Operation.
211.3d Switch Keys.
211.3e Interruption of Power.
211.3f Multideck Elevators.
Rule 211.4 Firefighters’ Service — Designated Attendant Operated Elevators
Rule 211.5 Firefighters’ Service — Elevators Arranged for Dual Operation
Rule 211.6 Firefighters’ Service — Inspection Operation
Rule 211.7 Firefighters’ Service Operating Procedures
Rule 211.8 Standby (Emergency) Power
NONMANDATORY APPENDIX D RACK AND PINION MACHINES (A17.1-1987, Rules 208.3–208.9d, and Rule 1200.4e) [Go to Page]
Rule 208.3 Factor of Safety for Driving Machines and Sheaves
Rule 208.4 Fasteners Transmitting Load
Rule 208.5 Shaft Fillets and Keys
Rule 208.6 Cast-Iron Worms and Worm Gears
Rule 208.7 Friction Gearing and Clutches
Rule 208.8 Driving-Machine Brakes
Rule 208.9 Indirect-Drive Machines [Go to Page]
208.9a Belt and Chain Drives.
208.9b General Requirements.
208.9c Monitoring and Brake Location.
208.9d Replacement of Belts or Chains.
1200.4e Belts and Chains.
INTERPRETATIONS [Go to Page]

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