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ASME A18.1 2014

ASME A18.1 2014

$98.04

ASME A18.1 Safety Standard for Platform Lifts and Stairway Chairlifts

Published By Publication Date Number of Pages
ASME 2014 80
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The ASME A18.1 Safety Standard for Platform Lifts and Stairway Chairlifts presents certain guides for the design, construction, installation, operation, inspection, testing, maintenance, and repair of inclined stairway chairlifts, and inclined and vertical platform lifts. It covers devices intended for transportation of a mobility-impaired person only—typically within household applications. Key changes to this edition include revising the definition of “building code.” New provisions were added under Section 2.1.6 for prevention of water accumulation in pits. Also a new Section 9.9 was added for engineering tests. The ultimate goal of this Standard is to help protect public safety, while reflecting best-practices of industry. A18.1 offers essential guidance to both public and private sectors: • For public sectors, it serves as the basis for state, municipal, and other jurisdictional authorities in drafting regulations governing the installation, testing, inspection, maintenance, alteration, and repair of stairway chairlifts and platform lifts. • For private sectors, A18.1 provides a standard reference of safety requirements for architects, engineers, insurance companies, manufacturers, and contractors, while delivering safety practices for owners and managers of structures where equipment covered in the Scope of this Standard is used.

PDF Catalog

PDF Pages PDF Title
5 CONTENTS
6 FOREWORD
7 ASME A18 COMMITTEE ROSTER
8 CORRESPONDENCE WITH THE A18 COMMITTEE
9 SUMMARY OF CHANGES
11 1 INTRODUCTION
1.1 Scope
1.1.1 Equipment Covered by This Standard.
1.1.2 Equipment Not Covered by This Standard.
1.1.3 Application.
1.1.4 Effective Date.
1.2 Purpose and Exceptions
1.3 Definitions
15 1.4 Metric SI Units
1.5 Reference Codes, Standards, and Specifications
16 Tables
Table 1.5-1 Reference Documents
18 Table 1.5-2 Procurement Information
19 2 VERTICAL PLATFORM LIFTS1
2.1 Runways
2.1.1 Runway Enclosure Provided
2.1.1.1
2.1.1.2
2.1.1.3
2.1.1.4
2.1.1.4.1
2.1.1.5
2.1.1.6
2.1.1.7
2.1.1.8
20 2.1.2 Partial Runway Enclosure Provided
2.1.2.1
2.1.2.1.1
2.1.2.2
2.1.2.3
2.1.2.4
2.1.2.5
2.1.2.5.1
2.1.2.6
2.1.2.7
2.1.2.8
21 2.1.3 Runway Enclosure Not Provided
2.1.3.1
2.1.3.2
2.1.3.3
2.1.3.4
2.1.3.4.1
2.1.3.4.2
2.1.3.5
22 2.1.3.6
2.1.3.6.1
2.1.3.6.2
2.1.3.6.3
2.1.3.7
2.1.3.8
2.1.3.8.1
2.1.3.9
2.1.3.10
2.1.4 Courtroom Lifts
2.1.4.1
2.1.4.2
23 2.1.4.2.1
2.1.4.2.2
2.1.4.3
2.1.4.4
2.1.4.5
2.1.4.6
2.1.4.7
2.1.4.7.1
2.1.5 Pipes in Runway Vicinity.
2.1.6 Lower Level Access Ramps and Pits.
2.1.6.1
2.1.6.2
2.1.6.3
24 2.1.6.4
2.1.6.5
2.1.6.5.1
2.1.6.5.2
2.1.6.6
2.1.7 Electrical Equipment and Wiring
2.1.7.1
2.1.7.2
2.1.8 Structural Support.
2.1.9 Headroom Clearance.
2.2 Guide Rails
2.2.1 Material.
25 2.2.2 Requirements for Steel, Where Used
2.2.2.1
2.2.2.2
2.2.2.3
2.2.3 Requirements for Metals Other Than Steel.
2.2.4 Stresses and Deflections
2.2.4.1 Guide Rails.
2.2.4.2 Brackets, Fastenings, and Supports.
2.2.5 Guide-Rail Surfaces.
2.2.6 Overall Length of Guide Rails.
2.2.7 Design and Strength of Brackets and Supports.2
2.2.8 Bracket Fastenings.
2.2.9 Fastening of Guide Rails to Rail Brackets.
2.3 Driving Means and Sheaves
2.3.1 General Requirements
2.3.1.1
2.3.1.2
26 2.3.1.3
2.3.1.4
2.3.1.5
2.3.1.6
2.3.2 Hydraulic Driving Machines.
2.3.3 Screw Machines.
2.3.4 Friction Machines.
2.3.5 Machine Framework and Base.
2.3.6 Guarding of Guiding Members.
2.3.7 Machinery Beams and Supports
2.3.7.1
2.3.7.2
2.3.7.3
2.3.7.4
2.3.8 Guarding of Driving Machines and Suspension Means.
2.3.9 Indirect-Drive Machines.
2.3.9.1 General Requirements.
27 2.3.9.2 Monitoring and Brake Location.
2.3.9.3 Replacement of Belts or Chains.
2.4 Driving Machine Brakes
2.4.1
2.4.2
2.4.3
2.5 Suspension and Support Means
2.5.1 General Requirements
2.5.1.1
2.5.1.2
2.5.1.3
2.5.1.4
2.5.2 Factors of Safety.
2.5.3 Arc of Contact of Suspension Means on Sheaves and Sprockets.
2.5.4 Spare Rope Turns on Winding Drums.
2.5.5 Securing Suspension Ropes to Winding Drums.
2.5.6 Lengthening, Splicing, Repairing, or Replacing Suspension Means.
2.5.7 Fastening of Rope Suspension Means to Platform.
28 2.5.8 Guarding.
2.6 Platforms
2.6.1 Frame and Floor.
2.6.2 Securing of Enclosures.
2.6.3 Strength and Deflection of Enclosure Walls.
2.6.4 Use of Cast Iron.
2.6.5 Floor Area.
2.6.6 Illumination
2.6.6.1
2.6.6.2
2.6.6.3
2.6.7 Protection of Platforms Against Fire.
2.6.7.1
2.6.8
2.6.8.1
2.7 Capacity, Speed, and Travel
2.7.1 Limitation of Load, Speed, and Travel.
29 2.7.2 Capacity Plates.
2.7.3 Data Plates.
2.7.4 Restriction Sign.
2.8 Safeties and Speed Governors
2.8.1 Screw Drive Machines.
Figures

Fig. 2.6.7 Platform Lift Corridor Call Station Pictograph
30 2.8.1.1
2.8.1.2
2.8.1.3
2.8.2 Minimum Factors of Safety and Stresses of Safety Parts and Rope Connections
2.8.2.1
2.8.2.2
2.8.2.3
2.8.2.4
2.8.2.5
2.8.2.6
2.8.3 Material and Factor of Safety.
2.8.4 Type A Instantaneous Safeties.
2.8.5 Means of Application.
2.8.6 Level of Platform Floor on Safety Application.
2.8.7 Release.
2.8.8 Platform Safety Exceptions.
2.9 Terminal Stopping Devices
2.9.1
31 2.9.2
2.9.3
2.9.4
2.9.5
2.9.6
2.9.7
2.10 Operating Devices and Control Equipment
2.10.1 Operation.
2.10.2 Attendant Operation
2.10.2.1
2.10.2.2
2.10.2.3
2.10.3 Control and Operating Circuit Requirements.
2.10.3.1
2.10.3.2
2.10.3.3
2.10.4 Motor Reversal Protection.
2.10.5 Phase Reversal and Failure Protection.
32 2.10.6 Emergency Stop Switch.
2.10.7 Slack-Rope and Slack-Chain Devices for Winding Drum and Roller-Chain-Type Driving Machines.
2.10.8 Release and Application of Driving-Machine Brake.
2.10.9 Electrical Equipment and Wiring
2.10.9.1
2.10.9.2
2.10.10 Manual Operations.
2.11 Emergency Signals
2.11.1
2.11.2
2.11.3
2.12 Standby Power
2.12.1 Standby Power Source.
2.12.2 Operation.
2.12.3 Transfer.
2.13 Code Data Plate
33 3 INCLINED PLATFORM LIFTS3
3.1 Runways
3.1.1 Means of Egress.
3.1.2 Clearances.
3.1.2.1
3.1.2.2
3.1.2.3
3.1.3 Pipes in Runway Vicinity.
3.1.4 Lower Level Access Ramps and Pits.
3.1.4.1
3.1.4.2
3.1.5 Structural Support.
3.1.6 Electrical Equipment and Wiring
3.1.6.1
3.1.6.2
3.2 Guide Rails and Tracks
3.2.1 Material.
3.2.1.1 Requirements for Steel, Where Used.
3.2.1.2 Requirements for Metals Other Than Steel.
3.2.1.3 Guide-Rail Surfaces.
3.2.2 Location.
34 3.2.3 Stresses and Deflections of Guide Rails and Their Brackets
3.2.3.1 Guide Rails.
3.2.3.2 Brackets, Fastenings, and Supports.
3.2.4 Factor of Safety.
3.2.5 Anchoring.
3.3 Driving Means and Sheaves
3.3.1 General Requirements
3.3.1.1
3.3.1.2
3.3.1.3
3.3.1.4
3.3.1.5
3.3.1.6
3.3.2 Hydraulic Driving Machines.
3.3.3 Screw Machines.
3.3.4 Friction Machines.
3.3.5 Location of Power Unit and Alignment and Guarding of Sheaves and Sprockets.
35 3.3.6 Indirect-Drive Machines.
3.3.6.1 General Requirements.
3.3.6.2 Monitoring and Brake Location.
3.4 Driving-Machine Brakes
3.4.1
3.4.2
3.5 Suspension and Support Means
3.5.1 General Requirements
3.5.1.1
3.5.1.2
3.5.1.3
3.5.2 Factors of Safety.
3.5.3 Arc of Contact of Suspension Means on Sheaves and Sprockets.
3.5.4 Spare Rope Turns on Winding Drums.
3.5.5 Securing Suspension Ropes to Winding Drums.
3.5.6 Lengthening, Splicing, Repairing, or Replacing Suspension Means.
36 3.5.7 Fastening of Rope Suspension Means to Platform.
3.5.8 Guarding.
3.6 Platforms
3.6.1 Frame and Floor.
3.6.2 Securing of Enclosure.
3.6.3 Strength and Deflection of Enclosure Walls.
3.6.4 Floor Area.
3.6.5 Material.
3.6.6 Glass on Platforms.
3.6.6.1
3.6.6.2
3.6.6.3
3.6.6.4
3.6.7 Platform Truck and Guides.
3.6.8 Platform Guarding.
3.6.8.1 Platform With Enclosure.
3.6.8.1.1
37 3.6.8.2 Platform With Passenger Restraining Arms.
3.6.8.2.1
3.6.8.2.2
3.6.8.2.3
3.6.8.2.4
3.6.8.2.5
3.6.9 Obstruction Devices.
3.6.10
3.7 Capacity, Load, Speed, and Angle of Inclination
3.7.1 Limitations of Capacity, Load, and Speed.
3.7.2 Limitation of Angle.
3.7.3 Capacity Plate.
38 3.7.4 Data Plates.
3.7.5 Restriction Sign.
3.8 Safeties and Speed Governors
3.8.1 Minimum Factors of Safety and Stresses of Safety Parts and Rope Connections
3.8.1.1
3.8.1.2
3.8.1.3
3.8.1.4
3.8.1.5
3.8.1.6
3.8.2 Material and Factor of Safety.
3.8.3 Means of Application.
3.8.3.1 Level of Platform Floor on Safety Application.
3.8.3.2 Release.
3.9 Terminal Stopping Devices
3.9.1
3.9.2
39 3.9.3
3.9.4
3.9.5
3.9.6
3.10 Operating Devices and Control Equipment
3.10.1 Operation.
3.10.2 Attendant Operation
3.10.2.1
3.10.2.2
3.10.2.3
3.10.2.4
3.10.3 Control and Operating Circuit Requirements.
3.10.3.1
3.10.3.2
3.10.3.3
3.10.4 Motor Reversal Protection.
3.10.5 Phase Reversal and Failure Protection.
3.10.6 Emergency Stop Switch.
40 3.10.7 Slack-Rope and Slack-Chain Devices for Winding Drum and Roller-Chain-Type Driving Machines.
3.10.8 Release and Application of Driving-Machine Brake.
3.10.9 Electrical Equipment and Wiring
3.10.9.1
3.10.9.2
3.10.10 Manual Operations.
3.11 Emergency Signal
3.11.1
3.11.2
3.12 Standby Power
3.12.1 Standby Power Source.
3.12.2 Operation.
3.12.3 Transfer.
3.13 Code Data Plate
4 INCLINED STAIRWAY CHAIRLIFTS4
41 4.1 Runways
4.1.1
4.1.2
4.1.3
4.1.4
4.2 Guide Rails and Tracks
4.3 Driving Means and Sheaves
4.3.1 General Requirements
4.3.1.1
4.3.1.2
4.3.1.3
4.3.2 Hydraulic Driving Machines.
4.3.3 Screw Machines.
4.3.4 Friction Machines.
4.3.5 Location of Power Unit and Alignment and Guarding of Sheaves and Sprockets.
4.3.6 Indirect-Drive Machines.
4.3.6.1 General Requirements.
4.3.6.2 Monitoring and Brake Location.
42 4.3.6.3 Replacement of Belts or Chains.
4.4 Driving-Machine Brakes
4.4.1
4.4.2
4.5 Suspension and Support Means
4.5.1 General Requirements
4.5.1.1
4.5.1.2
4.5.2 Factors of Safety.
4.5.3 Replacement of Chains and Sprockets.
4.6 Chairs and Seats
4.6.1 Chair Truck and Guides.
4.6.2 Factors of Safety.
4.6.3 Footrest Obstruction Device.
4.6.4 Footrest Clearance.
4.7 Capacity, Speed, and Angle of Inclination
4.7.1 Limitations of Capacity, Load, and Speed.
4.7.2 Limitation of Angle.
4.7.3 Capacity Plate.
4.7.4 Data Plates.
43 4.8 Safeties and Speed Governors
4.8.1 Minimum Factors of Safety and Stresses of Safety Parts and Rope Connections
4.8.1.1
4.8.1.2
4.8.1.3
4.8.1.4
4.8.1.5
4.8.1.6
4.8.2 Material and Factor of Safety.
4.8.3 Means of Application.
4.8.3.1 Level of Chair on Safety Application.
4.8.3.2 Release.
4.9 Terminal Stopping Devices
4.9.1
4.9.2
4.9.3
4.9.4
44 4.9.5
4.9.6
4.10 Operating Devices and Control Equipment
4.10.1 Operation.
4.10.2 Motor Reversal Protection.
4.10.3 Electrical Equipment and Wiring
4.10.3.1
4.10.3.2
4.10.3.3
4.10.4 Phase Reversal and Failure Protection.
4.10.5 Release and Application of Driving-Machine Brake.
4.10.6 Control and Operating Circuits.
4.10.6.1
4.10.6.2
4.10.7 Slack-Rope and Slack-Chain Devices for Winding Drum and Roller-Chain-Type Driving Machines.
4.11 Code Data Plate
45 5 PRIVATE RESIDENCE VERTICAL PLATFORM LIFTS5
5.1 Runways
5.1.1 Guarding
5.1.1.1
5.1.1.1.1
5.1.1.2
5.1.1.3
5.1.1.4
5.1.1.5
5.1.1.6
5.1.1.7
5.1.1.7.1
5.1.1.7.2
46 5.1.1.7.3
5.1.1.8
5.1.2 Pipes in Runway Vicinity.
5.1.3 Lower Level Access Ramps.
5.1.4 Electrical Equipment and Wiring
5.1.4.1
5.1.4.2
5.1.5 Structural Support.
5.1.6 Headroom Clearance.
5.2 Guide Rails
5.2.1 Material.
5.2.1.1 Requirements for Steel, Where Used.
5.2.1.2 Requirements for Metals Other Than Steel.
5.2.2 Stresses and Deflections
5.2.2.1 Guide Rails.
5.2.2.2 Brackets, Fastenings, and Supports.
5.2.3 Guide-Rail Surfaces.
5.2.4 Overall Length of Guide Rails.
47 5.2.5 Design and Strength of Brackets and Supports.
5.2.6 Bracket Fastenings.
5.2.7 Type of Fastenings.
5.3 Driving Means and Sheaves
5.3.1 General Requirements
5.3.1.1
5.3.1.2
5.3.1.3
5.3.1.4
5.3.1.5
5.3.1.6
5.3.2 Hydraulic Driving Machines.
5.3.3 Screw Machines.
5.3.4 Friction Machines.
5.3.5 Machine Framework and Base.
48 5.3.6 Guiding Member Enclosures.
5.3.7 Machinery Beams and Supports
5.3.7.1
5.3.7.2
5.3.7.3
5.3.7.4
5.3.8 Guarding of Driving Machines and Suspension Means.
5.3.9 Indirect-Drive Machines.
5.3.9.1 General Requirements.
5.3.9.2 Monitoring and Brake Location.
5.3.9.3 Replacement of Belts or Chains.
5.4 Driving-Machine Brakes
5.4.1
5.4.2
5.4.3
5.5 Suspension and Support Means
5.5.1 General Requirements
5.5.1.1
49 5.5.1.2
5.5.1.3
5.5.1.4
5.5.2 Factors of Safety.
5.5.3 Arc of Contact of Suspension Means on Sheaves and Sprockets.
5.5.4 Spare Rope Turns on Winding Drums.
5.5.5 Securing Suspension Ropes to Winding Drums.
5.5.6 Lengthening, Splicing, Repairing, or Replacing Suspension Means.
5.5.7 Fastening of Rope Suspension Means to Platform.
5.5.8 Guarding.
5.6 Platforms
5.6.1 Frame and Floor.
5.6.2 Securing of Enclosures.
5.6.3 Strength and Deflection of Enclosure Walls.
5.6.4 Use of Cast Iron.
5.6.5 Floor Size.
5.6.6 Illumination.
50 5.7 Capacity, Speed, and Travel
5.7.1 Limitation of Load, Speed, and Travel.
5.7.2 Capacity Plates.
5.7.3 Data Plates.
5.8 Safeties and Speed Governors
5.8.1 Screw Drive Alternate Safety.
5.8.2 Minimum Factors of Safety and Stresses of Safety Parts and Rope Connections
5.8.2.1
5.8.2.2
5.8.2.3
5.8.2.4
5.8.2.5
5.8.2.6
5.8.3 Material and Factor of Safety.
5.8.4 Type A Instantaneous Safeties.
51 5.8.5 Means of Application.
5.8.6 Level of Platform on Safety Application.
5.8.7 Release.
5.8.8 Platform Safety Exceptions.
5.9 Terminal Stopping Devices
5.9.1
5.9.2
5.9.3
5.9.4
5.9.5
5.9.6
5.9.7
5.10 Operating Devices and Control Equipment
5.10.1 Operation.
5.10.2 Attendant Operation.
5.10.2.1
52 5.10.2.2
5.10.3 Control and Operating Circuit Requirements.
5.10.3.1
5.10.3.2
5.10.3.3
5.10.4 Motor Reversal Protection.
5.10.5 Phase Reversal and Failure Protection.
5.10.6 Emergency Stop Switch.
5.10.7 Slack-Rope and Slack-Chain Devices for Winding Drum and Roller-Chain-Type Driving Machines.
5.10.8 Release and Application of Driving-Machine Brake.
5.10.9 Electrical Equipment and Wiring
5.10.9.1
5.10.9.2
5.10.10 Manual Operations.
5.11 Code Data Plate
6 PRIVATE RESIDENCE INCLINED PLATFORM LIFTS6
53 6.1 Runways
6.1.1 Clearances.
6.1.2 Pits and Ramps.
6.1.3 Pipes in Runway Vicinity.
6.1.4 Structural Support.
6.1.5 Electrical Equipment and Wiring
6.1.5.1
6.1.5.2
6.2 Guide Rails and Tracks
6.2.1 Material.
6.2.1.1 Requirements for Steel, Where Used.
6.2.1.2 Requirements for Metals Other Than Steel.
6.2.1.3 Guide-Rail Surfaces.
6.2.2 Location.
6.2.3 Stresses and Deflections.
6.2.3.1 Guide Rails.
6.2.3.2 Brackets, Fastening, and Supports.
6.2.4 Factor of Safety.
6.2.5 Anchoring.
6.3 Driving Means and Sheaves
6.3.1 General Requirements
6.3.1.1
54 6.3.1.2
6.3.1.3
6.3.1.4
6.3.1.5
6.3.1.6
6.3.2 Hydraulic Driving Machines.
6.3.3 Screw Machines.
6.3.4 Friction Machines.
6.3.5 Location of Power Unit and Alignment and Guarding of Sheaves and Sprockets.
6.3.6 Indirect-Drive Machines.
6.3.6.1 General Requirements.
6.3.6.2 Monitoring and Brake Location.
6.4 Driving-Machine Brakes
6.4.1
6.4.2
55 6.5 Suspension and Support Means
6.5.1 General Requirements
6.5.1.1
6.5.1.2
6.5.1.3
6.5.2 Factors of Safety.
6.5.3 Arc of Contact of Suspension Means on Sheaves and Sprockets.
6.5.4 Spare Rope Turns on Winding Drums.
6.5.5 Securing Suspension Ropes to Winding Drums.
6.5.6 Lengthening, Splicing, Repairing, or Replacing Suspension Means.
6.5.7 Fastening of Rope Suspension Means to Platform.
6.5.8 Guarding.
6.6 Platforms
6.6.1 Frame and Floor.
6.6.1.1 Securing of Enclosures.
6.6.1.2 Strength and Deflection of Enclosure Walls.
6.6.2 Floor Area.
6.6.3 Material.
6.6.4 Glass on Platforms.
56 6.6.4.1
6.6.4.2
6.6.4.3
6.6.4.4
6.6.5 Platform Truck and Guides.
6.6.6 Platform Guarding.
6.6.7 Seats.
6.6.8 Obstruction Devices.
6.7 Capacity, Load, and Speed
6.7.1 Limitations of Capacity, Load, and Speed.
6.7.2 Capacity Plate.
6.7.3 Data Plates.
6.8 Safeties and Governors
57 6.8.1 Minimum Factors of Safety and Stresses of Safety Parts and Rope Connections
6.8.1.1
6.8.1.2
6.8.1.3
6.8.1.4
6.8.1.5
6.8.1.6
6.8.2 Material and Factor of Safety.
6.8.3 Means of Application.
6.8.4 Level of Platform on Safety Application.
6.8.5 Release.
6.9 Terminal Stopping Devices
6.9.1
6.9.2
6.9.3
6.9.4
6.9.5
58 6.9.6
6.10 Operating Devices and Control Equipment
6.10.1 Operation.
6.10.2 Attendant Operation.
6.10.2.1
6.10.2.2
6.10.2.3
6.10.3 Control and Operating Circuit Requirements.
6.10.3.1
6.10.3.2
6.10.3.3
6.10.4 Motor Reversal Protection.
6.10.5 Phase Reversal and Failure Protection.
6.10.6 Electrical Equipment and Wiring
6.10.6.1
6.10.6.2
6.10.7 Slack-Rope and Slack-Chain Devices for Winding Drum and Roller-Chain-Type Driving Machines.
6.10.8 Emergency Stop Switch.
59 6.10.9 Release and Application of Driving-Machine Brake.
6.10.10 Manual Operations.
6.11 Code Data Plate
7 PRIVATE RESIDENCE INCLINED STAIRWAY CHAIRLIFTS7
7.1 Runways
7.1.1
7.1.2
7.1.3
7.2 Guide Rails and Tracks
7.3 Driving Means and Sheaves
7.3.1 General Requirements
7.3.1.1
7.3.1.2
7.3.1.3
7.3.2 Hydraulic Driving Machines.
7.3.3 Screw Machines.
7.3.4 Friction Machines.
7.3.5 Location of Power Unit and Alignment and Guarding of Sheaves and Sprockets.
7.3.6 Indirect-Drive Machines.
60 7.3.6.1 General Requirements.
7.3.6.2 Monitoring and Brake Location.
7.3.6.3 Replacement of Belts or Chains.
7.4 Driving-Machine Brakes
7.4.1
7.4.2
7.5 Suspension and Support Means
7.5.1 General Requirements
7.5.1.1
7.5.1.2
7.5.2 Factors of Safety.
7.5.3 Replacement of Chains and Sprockets.
7.6 Chairs and Seats
7.6.1 Chair Truck and Guides.
7.6.2 Factors of Safety.
7.6.3 Footrest Obstruction Device.
7.6.4 Footrest Clearance.
61 7.7 Capacity, Speed, and Angle of Inclination
7.7.1 Limitations of Capacity, Load, and Speed.
7.7.2 Limitation of Angle of Inclination.
7.7.3 Capacity Plate.
7.7.4 Data Plates.
7.8 Safeties and Governors
7.8.1 Minimum Factors of Safety and Stresses of Safety Parts and Rope Connections
7.8.1.1
7.8.1.2
7.8.1.3
7.8.1.4
7.8.1.5
7.8.1.6
7.8.2 Material and Factor of Safety.
7.8.3 Means of Application.
7.8.4 Level of Chair on Safety Application.
7.8.5 Release.
7.9 Terminal Stopping Devices
7.9.1
62 7.9.2
7.9.3
7.9.4
7.9.5
7.9.6
7.10 Operating Devices and Control Equipment
7.10.1 Operation.
7.10.2 Motor Reversal Protection.
7.10.3 Electrical Equipment and Wiring
7.10.3.1
7.10.3.2
7.10.3.3
7.10.4 Phase Reversal and Failure Protection.
7.10.5 Release and Application of Driving-Machine Brake.
7.10.6 Control and Operating Circuits.
7.10.6.1
7.10.6.2
63 7.10.7 Slack-Rope and Slack-Chain Devices for Winding Drum and Roller-Chain-Type Driving Machines.
7.11 Code Data Plate
8 DRIVING MEANS
8.1 Hydraulic Driving Means
8.1.1 Hydraulic Jack and Connections.
8.1.1.1 Direct-Acting Hydraulic Lifts.
8.1.2 Roped-Hydraulic Lift
8.1.2.1
8.1.2.2
8.1.2.3
8.1.2.4
8.1.2.5
8.1.2.6
8.1.2.7
8.1.3 Plungers
8.1.3.1 Material.
64 8.1.3.2 Plunger Design.
8.1.3.3 Plunger Connection.
8.1.3.4 Plunger Joints.
8.1.3.5 Plungers Subject to External Pressure.
8.1.3.6 Plunger Heads Subject to Fluid Pressure.
8.1.3.7 Plunger-Follower Guide.
8.1.4 Cylinders
8.1.4.1 Material.
8.1.4.2 Cylinder Design.
8.1.4.3 Clearance at Bottom of Cylinder.
8.1.4.4 Safety Bulkhead.
8.1.4.5 Cylinder Packing Heads.
8.1.4.6 Closed Cylinder and Plunger Heads.
8.1.4.7 Collection of Oil Leakage.
65 8.1.4.8 Installation Below Ground.
8.1.4.9 Means for Relief of Air or Gas.
8.1.4.10
8.1.5 Stops
8.1.5.1 Metal Stops and/or Other Means.
8.1.5.2 Hydraulic System.
8.1.6 Welding.
8.1.7 Hydraulic Connections
8.1.7.1 Flexible Hose and Fittings.
8.1.7.2 Hydraulic Tubing and Fittings
8.1.7.2.1
8.1.7.3 Steel Piping.
8.2 Screw Machines
8.2.1
8.2.2
66 8.2.3
8.2.4
8.2.5
8.2.6
8.2.7
8.2.8
8.2.9
8.3 Friction Machines
8.3.1
8.3.2
8.3.3
8.3.4
8.3.5
9 ENGINEERING TYPE TESTING AND DESIGN
9.1 Welding
9.1.1 Qualification of Welders.
9.1.2 Welding Steel.
9.1.3 Welding Metals Other Than Steel.
9.2 Plunger Design
9.2.1 Plungers Not Subject to Eccentric Loading
9.2.1.1
67 9.2.1.2 8
9.2.1.3
9.2.1.4
9.2.2 Plungers Subject to Eccentric Loading.
9.2.3 Plungers Subjected to External Pressure.
9.2.3.1
9.2.3.2
9.2.4 Telescoping Plungers.
68 9.3 Cylinder Design
9.4 Cylinder and Plunger Heads
9.4.1
9.4.2
9.4.3
9.5 Safety Factor
9.5.1
9.5.2
9.6 Engineering Tests: Safety Nut and Speed Limiting Device of Screw Column Lifts
9.6.1 Test of Safety Nut.
9.6.2 Test of Speed Limiting Device.
69 9.7 Minimum Load to Sustain and Lower
9.8 Tapered Rope Sockets
9.8.1
9.8.2
9.8.3
9.8.4
9.8.5
9.8.6
9.8.6.1
9.8.6.2
9.8.6.2.1
Fig. 9.7 Minimum Loads to Sustain and Lower Based Upon Inside Net Platform Area
70 9.8.6.2.2
9.8.6.2.3
9.8.6.2.4
9.8.6.2.5
9.9 Engineering Tests
9.9.1 General Requirements.
9.9.2 Test of Combination Mechanical Locks and Electric Contacts
9.9.2.1 General.
9.9.2.2 Connections for and Test of Electrical Parts.
9.9.2.3 Tests of Combination Mechanical Locks and Electric Contact.
9.9.2.3.1 Endurance Test.
9.9.2.3.2 Current Interruption Test.
71 9.9.2.3.3 Test Without Lubricant.
9.9.2.3.4 Test in Moist Atmosphere.
9.9.2.3.5 Misalignment Test
9.9.2.3.6 Insulation Test.
9.9.2.3.7 Static Test.
10 ROUTINE, PERIODIC, AND ACCEPTANCE INSPECTIONS AND TESTS
10.1 General Requirements
10.1.1 Routine Inspections and Tests.
72 10.1.2 Periodic Inspections and Tests
10.1.2.1
10.1.2.2
10.1.2.3
10.1.3 Acceptance Inspections and Tests
10.1.3.1
10.1.3.2
10.1.3.3
10.1.4 Qualification of Inspectors.
10.1.5 Applicability of Inspection and Test Requirements.
10.1.6 Installation Placed Out of Service.
10.2 Routine Inspections and Tests
10.2.1 Inspection and Test Periods.
10.2.2 Inspection and Test Requirements.
10.2.2.1 Inside Platform Inspections
10.2.2.2 Machine Inspections
10.2.2.3 Inside Runway Inspections
73 10.2.2.4 Outside Runway Inspections
10.3 Periodic Inspections and Tests
10.3.1 One-Year Inspection and Test Requirements
10.3.1.1 Cylinders.
10.3.1.2 Safeties
10.3.1.2.1
10.3.1.2.2
10.3.1.3 Governors.
10.3.1.4 Slack-Rope Devices on Winding Drum Machines.
10.3.1.5 Normal and Final Terminal Stopping Devices.
10.3.1.6 Broken Rope, Tape, or Chain Switch.
10.3.1.7 Slack-Rope Device on Roped-Hydraulic Machines.
10.3.2 Three-Year Inspection and Test Requirements
10.3.2.1 Unexposed Portions of Pistons.
10.3.3 Five-Year Inspection and Test Requirements
10.3.3.1 Platform Safeties.
74 10.3.3.2 Governors
10.3.3.2.1
10.3.3.2.2
10.3.3.2.3
10.3.3.3 Brake.
10.3.3.4 Ropes.
10.3.3.5 Fastenings.
10.4 Acceptance Inspections and Tests
10.4.1 General Requirements for Types A, B, and C Safeties.
10.4.1.1
10.4.1.2
10.4.1.3
10.4.1.4
10.4.1.5
10.4.2 Type A Governor-Operated Safeties.
10.4.2.1
10.4.3 Type A Safeties Without Governors.
10.4.4 Types B and C Safeties
10.4.4.1
75 10.4.4.2
10.4.5 Normal Terminal Stopping Devices
10.4.5.1
10.4.5.2
10.4.6 Stop Ring.
10.4.7 Bottom Cylinder Clearance.
10.4.8 Speed.
10.5 Inspection and Test Requirements for Altered Installations

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