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ASME A17.1S 2005

ASME A17.1S 2005

$98.04

ASME A17.1S-2005 Supplement to Safety Code for Elevators and Escalators

Published By Publication Date Number of Pages
ASME 2005 136
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PDF Catalog

PDF Pages PDF Title
5 CONTENTS
6 Figures
Tables
7 Nonmandatory Appendices
8 APPLICATION OF THIS SUPPLEMENT
9 Part 1 General
SECTION 1.1 SCOPE
SECTION 1.3 DEFINITIONS
10 Part 2 Electric Elevators
SECTION 2.1 CONSTRUCTION OF HOISTWAYS AND HOISTWAY ENCLOSURES
2.1.1 Hoistway Enclosures
11 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
12 2.1.6 Projections, Recesses, and Setbacks in Hoistway Enclosures
SECTION 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 Access to Pits
13 2.2.5 Illumination of Pits
2.2.6 Stop Switch in Pits
2.2.7 Minimum Pit Depths Required
2.2.8 Access to Underside of Car
SECTION 2.3 LOCATION AND GUARDING OF COUNTERWElGHTS
2.3.1 Location of Counterweights
14 2.3.2 Counterweight Guards
2.3.3 Remote Counterweight Hoistways
2.3.4 Counterweight Runway Enclosures
15 SECTION 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
2.4.3 Minimum Bottom Runby for Uncounterweighted Elevators
2.4.4 Maximum Bottom Runby
2.4.5 Counterweight Runby Data Plate
2.4.2.2 Minimum Bottom Runby for Counterweight Elevators With Spring Buffers or Solid Bumpers and Rheostatic Control or Single-Speed AC Control
16 2.4.6 Top Car Clearances for Counterweighted Elevators
2.4.7 Top Car Clearance for Uncounterweighted Elevators
2.4.8 Vertical Clearances With Underslung Car Frames
2.4.9 Top Counterweight Clearances
2.4.10 Overhead Clearances Where Overhead Beams Are Not Over Car Crosshead
17 2.4.11 Equipment on Top of Car Not Permitted to Strike Overhead Structure
2.4.12 Refuge Space on Top of Car Enclosure
SECTION 2.5 HORIZONTAL CAR AND COUNTERWEIGHT CLEARANCES
2.5.1 Clearances Between Cars, Counterweights, and Hoistway Enclosures
SECTION 2.6 PROTECTION OF SPACE BELOW HOlSTWAYS
18 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
SECTION 2.7 MACHINERY SPACES, MACHINE ROOMS, CONTROL SPACES, AND CONTROL ROOMS
2.7.1 Enclosure of Rooms and Spaces
2.7.2 Maintenance Path and Clearance
19 2.7.3 Access to Machinery Spaces, Machine Rooms, Control Spaces, and Control Rooms
20 2.7.4 Headroom in Machinery Spaces, Machine Rooms, Control Spaces, and Control Rooms
2.7.5 Working Areas Inside the Hoistway and in the Pit
23 2.7.6 Location of Machinery Spaces, Machine Rooms, Control Spaces, Control Rooms, and Equipment
24 2.7.7 Machine Rooms and Control Rooms Underneath the Hoistway
25 2.7.8 Remote Machine Rooms and Control Rooms
2.7.9 Lighting, Temperature, and Humidity in Machinery Spaces, Machine Rooms, Control Spaces, and Control Rooms
SECTION 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
26 2.8.3 Pipes, Ducts, Tanks, and Sprinklers
2.8.4 Electrical Heaters
2.8.5 Air Conditioning
27 2.8.6 Miscellaneous Equipment
SECTION 2.9 MACHINERY AND SHEAVE BEAMS, SUPPORTS, AND FOUNDATIONS
2.9.1 Supports Required
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
28 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
29 2.9.5 Allowable Deflections of Machinery and Sheave Beams, Their Supports, and Any Support Members Loaded in Bending Which Transmit Load to Guide Rails or Structural Walls
2.9.6 Allowable Stresses Due to Emergency Braking
SECTION 2.10 GUARDING OF EQUIPMENT AND STANDARD RAILING
2.10.1 Guarding of Equipment
2.10.2 Standard Railing
SECTION 2.11 PROTECTION OF HOISTWAY OPENINGS
2.11.1 Entrances and Emergency Doors Required
30 2.11.2 Types of Entrances
2.11.3 Closing of Hoistway Doors
2.11.4 Location of Horizontally Sliding or Swinging Hoistway Doors
31 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
32 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
2.11.11 Entrances, Horizontal Slide Type
34 2.11.12 Entrances, Vertical Slide Type
35 2.11.13 Entrances, Swinging Type
36 2.11.14 Fire Tests
2.11.15 Marking
2.11.16 Factory Inspections
37 2.11.17 Transoms and Fixed Side Panels
2.11.18 Installation Instructions
2.11.19 Gasketing of Hoistway Entrances
SECTION 2.12 HOISTWAY DOOR LOCKING DEVICES AND ELECTRIC CONTACTS, AND HOISTWAY ACCESS SWITCHES
2.12.1 General
2.12.2 Interlocks
38 2.12.3 Hoistway Door Combination Mechanical Locks and Electric Contacts
39 2.12.4 Listing/ Certification Door Locking Devices and Door or Gate Electric Contacts
40 2.12.5 Restricted Opening of Hoistway or Car Doors
2.12.6 Hoistway Door Unlocking Devices
2.12.7 Hoistway Access Switches
41 SECTION 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
42 2.13.4 Closing Limitations for Power- Operated Horizontally Sliding Hoistway Doors and Horizontally Sliding Car Doors or Gates
43 2.13.5 Reopening Device for Power- Operated Car Doors or Gates
2.13.6 Sequence Operation for Power- Operated Hoistway Doors With Car Doors or Gates
44 SECTION 2.14 CAR ENCLOSURES, CAR DOORS AND GATES, AND CAR ILLUMINATION
2.14.1 Passenger and Freight Enclosures, General
46 2.14.2 Passenger- Car Enclosures
47 2.14.3 Freight- Car Enclosure
48 2.14.4 Passenger and Freight Car Doors and Gates, General Requirements
49 2.14.5 Passenger Car Doors
50 2.14.6 Freight Elevator Car Doors and Gates
51 2.14.7 Illumination of Cars and Lighting Fixtures
52 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
2.15.6 Materials for Car Frames and Platform Frames
53 2.15.7 Car Frame and Platform Connections
2.15.8 Protection of Platforms Against Fire
2.15.9 Platform Guards ( Aprons)
2.15.10 Maximum Allowable Stresses in Car Frame and Platform Members and Connections
54 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
2.15.10.1 Maximum Allowable Stresses in Car Frame and Platform Members and Connections, for Steels Specified in 2.15.6.2.1 and 2.15.6.2.2
55 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
SECTION 2.16 CAPACITY AND LOADING
2.16.1 Minimum Rated Load for Passenger Elevators
2.16.2 Minimum Rated Load for Freight Elevators
56 2.16.1.1 Inside Net Platform Areas for Passenger Elevators
2.16.1.1 Maximum Inside Net Platform Areas for the Various Rated Loads
57 2.16.3 Capacity and Data Plates
2.16.4 Carrying of Passengers on Freight Elevators
58 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
59 2.16.8 Additional Requirements for Passenger Overload in the Down Direction
2.16.9 Special Loading Means
SECTION 2.17 CAR AND COUNTERWEIGHT SAFETIES
2.17.1 Where Required and Location
60 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 Safety Mechanism Switches Required
2.17.8 Limits of Use of Various Types of Safeties
61 2.17.3 Maximum and Minimum Stopping Distances for Type B Car Safeties With Rated Load and Type B Counterweight Safeties
62 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
2.17.13 Corrosion- Resistant Bearings in Safeties and Safety Operating Mechanisms
63 2.17.14 Marking Plates for Safeties
2.17.15 Governor- Rope Releasing Carriers
2.17.16 Rail Lubricants and Lubrication Plate
SECTION 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
2.18.4 Speed- Governor Overspeed Switch
64 2.18.2.1 Maximum Car Speeds at Which Speed Governor Trips and Governor Overspeed Switch Operates
65 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
66 2.18.8 Factors of Safety in Load- Bearing Parts of Speed Governor
2.18.9 Speed- Governor Marking Plate
SECTION 2.19 ASCENDING CAR OVERSPEED AND UNINTENDED CAR MOVEMENT PROTECTION
2.19.1 Ascending Car Overspeed Protection
2.19.2 Protection Against Unintended Car Movement
2.18.7.4 Multiplier for Determining Governor Sheave Pitch Diameter
67 2.19.3 Emergency Brake ( See Nonmandatory Appendix F)
68 2.19.4 Emergency Brake Supports
SECTION 2.20 SUSPENSION ROPES AND THEIR CONNECTIONS
2.20.1 Suspension Means
2.20.2 Wire Rope Data
2.20.3 Factor of Safety
2.20.4 Minimum Number and Diameter of Suspension Ropes
69 2.20.5 Suspension- Rope Equalizers
2.20.6 Securing of Suspension Wire Ropes to Winding Drums
2.20.7 Spare Rope Turns on Winding Drums
2.20.8 Reserved
2.20.9 Suspension-Rope Fastening
2.20.3 Minimum Factors of Safety for Suspension Wire Ropes
71 2.20.9.4 Tapered Rope Sockets
2.20.9.5 Wedge Rope Sockets
2.20.9.4.5 Relation of Rope Diameter to Diameter of the Small Socket Hole
74 2.20.10 Auxiliary Rope Fastening Devices
SECTION 2.21 COUNTERWEIGHTS
2.21.1 General Requirements
2.21.2 Design Requirements for Frames and Rods
75 2.21.3 Cars Counterbalancing One Another
2.21.4 Compensation Means
SECTION 2.22 BUFFERS AND BUMPERS
2.22.1 Type and Location
2.22.2 Solid Bumpers
2.22.3 Spring Buffers
76 2.22.4 Oil Buffers
2.22.3.1 Minimum Spring Buffer Stroke
77 2.22.4.1 Minimum Oil Buffer Strokes
78 SECTION 2.23 CAR AND COUNTERWEIGHT GUIDE RAILS, GUIDE-RAIL SUPPORTS, AND FASTENINGS
2.23.1 Guide Rails Required
2.23.2 Material
2.23.3 Rail Section
2.23.4 Maximum Load on Rails in Relation to the Bracket Spacing
2.23.3 Elevator Guide Rails
79 2.23.3 T-Section Guide-Rail Dimensions
80 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
81 2.23.4.1-2 Minimum Moment of Inertia About x-x Axis for a Single Guide Rail With Its Reinforcement
84 2.23.4.2 Load Multiplying Factor for Duplex Safeties
85 2.23.5 Stresses and Deflections
2.23.6 Guide- Rail Surfaces
2.23.7 Rail Joints and Fishplates
2.23.4.3.1 Guide Rails for Counterweight Without Safeties
2.23.4.3.3 Intermediate Tie Brackets
86 2.23.8 Overall Length of Guide Rails
2.23.9 Guide- Rail Brackets and Building Supports
2.23.7.2.1 Minimum Thickness of Fishplates and Minimum Diameter of Fastening Bolts
87 2.23.10 Fastening of Guide Rails to Rail Brackets
SECTION 2.24 DRIVING MACHINES AND SHEAVES
2.24.1 Type of Driving Machines
2.24.2 Sheaves and Drums
2.24.3 Factor of Safety for Driving Machines and Sheaves
2.23.10.2 Minimum Size of Rail-Fastening Bolts
88 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 F1)
89 2.24.9 Indirect Driving Machines
2.24.10 Means for Inspection of Gears
SECTION 2.25 TERMINAL STOPPING DEVICES
2.25.1 General Requirements
2.25.2 Normal Terminal Stopping Devices
90 2.25.3 Final Terminal Stopping Devices
2.25.4 Emergency Terminal Stopping Means
91 SECTION 2.26 OPERATING DEVICES AND CONTROL EQUIPMENT
2.26.1 Operation and Operating Devices
94 2.26.2 Electrical Protective Devices
95 2.26.3 Contactors and Relays for Use in Critical Operating Circuits
2.26.4 Electrical Equipment and Wiring
96 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
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
2.26.9 Control and Operating Circuits
98 2.26.10 Absorption of Regenerated Power
2.26.11 Car Platform to Hoistway Door Sills Vertical Distance
2.26.12 Symbols
SECTION 2.27 EMERGENCY OPERATION AND SIGNALING DEVICES
2.27.1 Car Emergency Signaling Devices
99 2.26.12.1 Symbol Identification
100 2.27.2 Emergency or Standby Power System
2.27.3 Firefighters’ Emergency Operation: Automatic Elevators
102 2.27.3.1.6(h) Visual Signal
104 2.27.3.3.7 Panel Layout
105 2.27.4 Firefighters’ Emergency Operation: Nonautomatic Elevators
106 2.27.5 Firefighters’ Emergency Operation: Automatic Elevators With Designated- Attendant Operation
2.27.6 Firefighters’ Emergency Operation: Inspection Operation
2.27.7 Firefighters’ Emergency Operation: Operating Procedures
2.27.7.1 Phase I Emergency Recall Operation Instructions
107 2.27.8 Switch Keys
2.27.9 Elevator Corridor Call Station Pictograph
2.27.7.2 Phase II Emergency In-Car Operation
108 2.27.9 Elevator Corridor Call Station Pictograph
109 SECTION 2.28 LAYOUT DRAWINGS
2.28.1 Information Required on Layout Drawings
SECTION 2.29 IDENTIFICATION
2.29.1 Identification of Equipment
2.29.2 Identification of Floors
110 Part 3 Hydraulic Elevators
SECTION 3.1 CONSTRUCTION OF HOISTWAYS AND HOISTWAY ENCLOSURES
3.1.1 Strength of Pit Floor
3.1.2 Floors Over Hoistways
SECTION 3.2 PITS
3.2.1 Minimum Pit Depths Required
SECTION 3.3 LOCATION AND GUARDING OF COUNTERWEIGHTS
SECTION 3.4 BOTTOM AND TOP CLEARANCES AND RUNBYS FOR CARS AND COUNTERWEIGHTS
3.4.1 Bottom Car Clearance
111 3.4.2 Minimum Bottom and Top Car Runby
3.4.3 Car Top and Bottom Maximum Runby
3.4.4 Top Car Clearance
3.4.5 Equipment Projecting Above the Car Top
3.4.6 Top Clearance and Bottom Runby of Counterweight
3.4.7 Refuge Space on Top of Car Enclosure
3.4.8 Vertical Clearances With Underslung Car Frames
112 SECTION 3.5 HORIZONTAL CAR AND COUNTERWEIGHT CLEARANCES
SECTION 3.6 PROTECTION OF SPACES BELOW HOISTWAY
3.6.1 Jack- Supporting Structure
3.6.2 Counterweight Safety Actuation
3.6.3 Buffer Types
3.6.4 Buffer Supports
SECTION 3.7 MACHINERY SPACES, MACHINE ROOMS, CONTROL SPACES, AND CONTROL ROOMS
3.7.1
113 SECTION 3.8 ELECTRICAL EQUIPMENT, WIRING, PIPES, AND DUCTS IN HOISTWAY, MACHINERY SPACES, MACHINE ROOMS, CONTROL SPACES, AND CONTROL ROOMS
SECTION 3.9 MACHINERY AND SHEAVE BEAMS, SUPPORTS, AND FOUNDATIONS
SECTION 3.10 GUARDING OF EXPOSED AUXILIARY EQUIPMENT
SECTION 3.11 PROTECTION OF HOISTWAY LANDING OPENINGS
3.11.1 Emergency Doors
SECTION 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
SECTION 3.13 POWER OPERATION, POWER OPENING, AND POWER CLOSING OF HOISTWAY DOORS AND CAR DOORS OR GATES
SECTION 3.14 CAR ENCLOSURES, CAR DOORS AND GATES, AND CAR ILLUMINATION
SECTION 3.15 CAR FRAMES AND PLATFORMS
3.15.1 Requirements
114 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
SECTION 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
SECTION 3.17 CAR AND COUNTERWEIGHT SAFETIES AND PLUNGER GRIPPER
3.17.1 Car Safeties
115 3.17.2 Counterweight Safeties
3.17.3 Plunger Gripper
116 SECTION 3.18 HYDRAULIC JACKS
3.18.1 Hydraulic Jack and Connections
3.18.2 Plungers
117 3.18.3 Cylinders
118 3.18.4 Plunger Stops
3.18.5 Welding
SECTION 3.19 VALVES, PRESSURE PIPING, AND FITTINGS
3.19.1 Materials and Working Pressures
119 3.19.2 Pressure Piping
3.19.3 Connections and Fittings
3.19.4 Valves
121 3.19.5 Piping Buried in the Ground
3.19.6 Welding
3.19.7 Electrical Requirements
SECTION 3.20 ROPES AND ROPE CONNECTIONS
SECTION 3.21 COUNTERWEIGHTS
3.21.1 Counterweights
3.21.2 Counterweight Sheaves
SECTION 3.22 BUFFERS AND BUMPERS
3.22.1 Car Buffers or Bumpers
122 3.22.2 Counterweight Buffers
SECTION 3.23 GUIDE RAILS, GUIDE- RAIL SUPPORTS, AND FASTENINGS
3.23.1 Direct- Acting Hydraulic Elevators
3.23.2 Roped- Hydraulic Elevators
SECTION 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
SECTION 3.25 TERMINAL STOPPING DEVICES
3.25.1 Normal Terminal Stopping Devices
123 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
3.26.2 Inspection Operation
3.26.3 Anticreep and Leveling Operation
124 3.26.4 Electrical Protective Devices
3.26.5 Phase Reversal and Failure Protection
3.26.6 Control and Operating Circuits
3.26.7 Recycling Operation for Multiple or Telescopic Plungers
3.26.8 Pressure Switch
3.26.9 Low Oil Protection
125 3.26.10 Auxiliary Power Lowering Operation
SECTION 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
126 3.27.4 Device Actuation With Phase II Emergency In- Car Operation in Effect
SECTION 3.28 LAYOUT DATA
3.28.1 Information Required on Layout Drawing
SECTION 3.29 IDENTIFICATION
127 Part 8 General Requirements
SECTION 8.1 SECURITY
8.1.2 Group 1: Restricted
8.1.3 Group 2: Authorized Personnel
SECTION 8.6 MAINTENANCE, REPAIR, AND REPLACEMENT
128 8.6.4 Maintenance of Electric Elevators
8.6.11 Special Provisions
129 Q EXPLANATORY FIGURES FOR THE DEFINITIONS OF ELEVATOR MACHINERY SPACE, MACHINE ROOM, CONTROL SPACE, CONTROL ROOM, REMOTE MACHINE ROOM, OR REMOTE CONTROL ROOM
Table
Q-1
Figures
130 Q-1
Q-2
Q-3
Q-4
131 Q-5
Q-6
132 R INSPECTION OPERATION AND HOISTWAY ACCESS SWITCH OPERATION HIERARCHY
133 Table
R-1 Inspection Operation and Hoistway Access Switch Operation Hierarchy
ASME A17.1S 2005
$98.04