This information is provided free of charge by the Department of Industrial Relations
from its web site at www.dir.ca.gov. These regulations are for the
convenience of the user and no representation or warranty is made that the information
is current or accurate. See full disclaimer at https://www.dir.ca.gov/od_pub/disclaimer.html.
Subchapter 6. Elevator Safety Orders
Article 6. Definitions
(a) Scope. The elevator industry and the material handling industry, both of which are subject to these orders, use many words and terms that have meanings unique to their respective endeavors. Definitions are included to standardize nomenclature and improve communication between inspectors, mechanics, architects, engineers, and owners. Oral and written interchanges are enhanced when both parties understand a given term or word to have a specific meaning.
(b) List of Definitions. The following definitions shall be accepted as the meaning of the various terms as used in these regulations:
Acceleration. The operation of advancing the elevator drive motor speed from zero to normal operating speed.
Alteration. Any change or addition to the equipment other than ordinary repairs or replacements.
Alternate Level. See Level, Alternate.
Angle of Contact. That portion of a sheave contacted by a rope. Measured in degrees of contact. Sometimes referred to as angle of wrap or arc of contact.
Applied Frame Entrance. A wraparound or partial addition to an existing entrance frame used to improve the appearance or to provide the required clearance.
Annunciator, Car. An electrical device in the car which indicates visually the landings at which an elevator landing signal registering device has been actuated.
Approved Device. An approved device is one on which a written approval for use in the State of California has been issued by the Division of Industrial Safety.
Apron. See Platform Guard.
Astragal. A molding on the leading edge of hoistway and car doors. Usually a rubber molding extending the full height on center opening doors, and either metal or rubber running the full width of the upper panel on biparting freight type doors. It is furnished to reduce the effects of injury, should something get caught between door panels and quiet the operation of the doors.
Authorized Personnel. Persons who have been instructed in the operation and/or maintenance of the equipment and designated by the owner to use or maintain the equipment.
Automated People Mover. A guided transit mode with fully automated operation, featuring vehicles that operate on guideways with exclusive right-of-way.
Automatic Transfer Device. See under Material Handling Devices.
Backlash. Excessive clearance between the teeth of the worm and worm gear of a geared machine; it permits a rocking action of the drive sheave or gear when the worm is held stationary.
Basic Safety Circuit. A portion of the elevator control wiring that includes a number of mechanical switch contacts and relay contacts in series. Usually includes the final limits, emergency stop button, governor contacts and a safety-operated switch. The cause of operation of any one of these contacts constitutes a possible hazardous operation of the elevator and therefore stops all elevator operation. Also called the emergency circuit.
Buffer. A device designed to stop a descending car or counterweight beyond its normal limit of travel by storing or by absorbing and dissipating the kinetic energy of the car or counterweight.
(A) Oil Buffer. A buffer using oil as a medium which absorbs and dissipates the kinetic energy of the descending car or counterweight.
(B) Gas Spring-Return Oil Buffer. An oil buffer utilizing the pressure of a compressed gas to return the buffer plunger or piston to its fully extended position.
(C) Mechanical Spring-Return Oil Buffer. An oil buffer utilizing the force of the compressed mechanical spring or springs to return the buffer plunger or piston to its fully extended position.
(D) Oil Buffer Stroke. The oil-displacing movement of the buffer plunger or piston, excluding the travel of the buffer-plunger accelerating device.
(E) Spring Buffer. A buffer which stores in a spring the kinetic energy of the descending car or counterweight.
(F) Spring-Buffer Load Rating. The load required to compress the spring an amount equal to its stroke.
(G) Spring-Buffer Stroke. The distance the contact end of the spring can move under a compressive load until all coils are essentially in contact or until a fixed stop is reached.
Bumper. A device, other than an oil or spring buffer, designed to stop a descending car or counterweight beyond its normal limit of travel by absorbing the impact.
Cam. A steel angle beveled at both ends and fastened to the guide rails to operate terminal switches mounted on the car. A steel angle beveled at both ends fastened to the car to operate terminal switches in the hoistway. A steel angle mounted on the car to operate a hoistway floor selector. A movable steel bar or angle mounted on a car to unlock hoistway door interlocks. A device for converting regular rotary motion into irregular rotary motion or reciprocating motion.
Car, Elevator. The load-carrying unit, including its platform, car frame, enclosure, and car door or gate.
Car, Material Lift. See under Material Handling Devices.
Car Door or Gate Electric Contact. An electrical device, the function of which is to prevent the operation of the driving machine by the normal operating device unless the car door or gate is in the closed position.
Car Door or Gate Power Closer. A device or assembly of devices which closes a manually opened car door or gate by power other than by hand, gravity, springs, or the movement of the car.
Car Door or Gate. Power Closed. A door or gate which is closed by a door or gate power operator.
Car Enclosure. The top and the walls of the car resting on and attached to the car platform.
Car Frame (Sling). The supporting frame to which the car platform, upper and lower sets of guide shoes, car safety and hoisting ropes or rope sheaves of a cable elevator are usually attached or the plunger or cylinder of a direct plunger elevator are attached.
Car Frame, Overslung. A car frame to which the hoisting rope fastenings or hoisting rope sheaves are attached to the crosshead or top member of the car frame.
Car Frame, Underslung. A car frame to which the hoisting rope fastenings or hoisting rope sheaves are attached at or below the car platform.
Car Frame, Sub-Post. A car frame, all of whose members are located below the car platform.
Car Frame, Offset. A car frame sufficiently offset from the center of the platform to require special design and construction not covered by the formulas in Article 18.
Car Gate. The movable portion(s) of the car entrance which closes the opening, providing access to the car or landings. In contrast to a car door, the car gate is not a solid panel. It consists of one of the following:
(A) Horizontally Sliding Collapsible Gate. A series of horizontally sliding vertical bars, jointed by a scissor-like linkage that allows the assembly to collapse (normally to less 25% of the closed width). The collapsing gate is subject to horizontal deflection.
(B) Horizontally Sliding Safety or Tubular gate. A non-collapsible series of horizontally sliding vertical tubes. This gate may travel past the stationary car panel to the side of the enclosure when in the open position.
(C) Vertically Lifting Gate. A counterweight (counterbalanced) assembly, consisting of one or more sections that are guided in the vertical direction to open or close. The gate may be of wood or metal construction. Wood gates may consist of either horizontal or vertical slats. Metal gates are usually constructed of perforated or expanded metal.
Car, Material Lift. The load-carrying unit including the car frame, enclosure, and transfer device.
Car Platform. The structure which forms the floor of the car and which directly supports the load.
Car Platform, Laminated. A self-supporting platform constructed of plywood with a bonded steel sheet facing on both top and bottom surfaces.
Car Platform Frame. A structure frame, composed of interconnecting members, which supports the car platform floor.
Car Stop Switch. A device located in the car which, when manually operated, causes the electric power to be removed from the driving machine motor and brake of an electric elevator or from the electrically operated valves and pump motor of a hydraulic elevator.
C.C.R. The California Code of Regulations.
Ceramic Permanent Magnet. A magnet of the type which has a force that does not deteriorate with time.
Certified Competent Conveyance Inspector (CCCI). Any person who has been determined by the Division to have the qualifications and ability of a competent conveyance inspector and is certified as a CCCI by the Division.
Certified Competent Conveyance Mechanic (CCCM). Any person who has been determined by the Division to have the qualifications and ability of a competent journey-level elevator mechanic and is certified as a CCCM by the Division.
Certified Qualified Conveyance Company (CQCC). Any person, firm, or corporation that, (1) possesses a valid elevator contractor's license if required by Chapter 9 (commencing with Section 7000) of Division 3 of the Business and Professions Code, and (2) is certified as a CQCC by the Division.
Clearance, Bottom Car. The clear vertical distance from the pit floor to the lowest structural or mechanical part, equipment or device installed beneath the car platform, except guide shoes or rollers, safety jaw assemblies and platform aprons or guards, or other equipment located within 12 inches horizontally from the edge of the platform, when the car rests on its fully compressed buffer.
Clearance, Top Car. The shortest vertical distance between the top of the car crosshead, or between the top of the car which ever is higher, and the nearest part of the overhead structure or any other obstruction when the car floor is level with the top terminal landing.
Clearance, Top Counterweight. The shortest vertical distance between any part of the counterweight structure and the nearest part of the overhead structure or any other obstruction when the car floor is level with the bottom terminal landing.
Collision Switch. See under Earthquake Protection Devices.
Compensating Rope Sheave Switch. A device which automatically causes the electric power to be removed from the elevator motor and brake when the compensating sheave approaches its upper or lower limit of travel.
Component Rated Pressure. The pressure to which a hydraulic component can be subjected.
Control. The system governing the starting, stopping, direction of motion, acceleration, speed, and retardation of the moving member. See also definition of control motion, control operation, and control system in Section 3 of ASME A17.1-1996.
(A) DC Motor Control. A control system which uses a DC motor to drive the machine.
(1) Generator-Field Control. A system of control which is accomplished by the use of an individual generator for each elevator or dumbwaiter wherein the voltage applied to the driving-machine motor is adjusted by varying the strength and direction of the generator field.
(2) Multivoltage Control. A system of control which is accomplished by impressing successively on the armature of the driving-machine motor a number of substantially fixed voltages such as may be obtained from multicommutator generators common to a group of elevators.
(3) Rheostatic Control. A system of control which is accomplished by varying resistance or reactance, or both, in the armature or field circuit, or both, of the driving-machine motor.
(4) Dual Bridge Thyristor Converter Control. A control system for a DC motor which supplies the armature with variable voltage of either polarity, and is capable of current flow in both directions.
(5) Single Bridge Thyristor Converter Control. A control system for a DC motor which supplies the armature with variable voltage of fixed polarity. The field is reversed to control direction and to cause regeneration.
(B) AC Motor Control. A control system which uses an alternating current motor machine.
(1) Single-Speed Alternating Current Control. A control for a driving-machine induction motor which is arranged to run at a single speed.
(2) Two-Speed Alternating Current Control. A control for a two-speed driving-machine induction motor which is arranged to run at two different synchronous speeds by connecting the motor windings so as to obtain different numbers of poles.
(3) Variable Frequency Control. A control system which changes the magnitude and frequency of the voltage applied to the motor.
(4) Variable Voltage AC Control. A control system for an AC motor which varies the amount and direction of output torque by controlling the magnitude and phase sequence of the voltage to the motor.
(5) Variable Voltage AC, DC Injection Control. A control system for an AC motor which produces retardation torque by injecting a DC current into either a stator winding of the motor or a separate eddy-current brake.
Control, Static. A control system in which control functions are performed by solid state devices.
Controller. A device, or group of devices, which serves to control in some predetermined manner the apparatus to which it is connected. See also definition of controller motion, controller motor, and controller operation in Section 3 of ASME A17.1-1996.
Conveyance. Any elevator, dumbwaiter, escalator, moving platform lift, stairway chairlift, material lift or dumbwaiter with automatic transfer device, automated people mover, or other equipment subject to this chapter.
Conveyor, Reciprocating. See under Material Handling Devices.
Derailment Switch. See under Earthquake Protection Devices.
Designated Level. See Level, Designated.
Designated Attendant. Where elevator operation is controlled from inside the car (attendant service, independent, hospital service, and other similar operations), it shall be considered as being operated by a designated attendant.
Dispatching Device, Elevator Automatic. A device, the principal function of which is to operate a signal in the car to indicate when the car should leave a designated landing, or to actuate its starting mechanism when the car is at a designated landing.
Displacement Switch. A device actuated by the displacement of the counterweight, at any point in the hoistway, to provide a signal that the counterweight has moved from its normal plane of travel or has left its guide rails.
Door or Gate, Car or Hoistway. The sliding portion of the car or the hinged or sliding portion in the hoistway enclosure which closes the opening giving access to the car or to the landing.
(A) Biparting Door. A vertically sliding door, consisting of two or more sections so arranged that the sections or groups of sections open away from each other and so interconnected that all sections operate simultaneously.
(B) Center-Opening Door. A horizontally sliding or horizontally swinging door consisting of two or more sections so arranged that the sections or groups of sections open away from each other. Horizontally sliding center-opening doors are interconnected so that all sections operate simultaneously.
Door or Gate Closer. A device which closes a hoistway door or a car door or gate by means of a spring or by gravity.
Door or Gate, Power-Operated. A hoistway door or a car door or gate which is opened and closed by a door or gate power operator.
Door or Gate Power Operator. A device or assembly of devices which opens a hoistway door or a car door or gate or both by power other than by hand, gravity, springs, or the movement of the car; and which closes them by power other than by hand, gravity, or the movement of the car.
Door or Gate, Self-Closing. A manually opened hoistway door or a car door or gate which closes when released.
Door or Gate, Manually Operated. A door or gate which is opened and closed by hand.
Door or Gate, Semiautomatic. A door or gate which is opened manually and which closes automatically as the car leaves the landing.
Door or Gate, Full Automatic. A door or gate which is opened automatically by the action of the elevator car approaching the landing and closed by gravity as the car leaves the landing.
Doors, Sidewalk. Sidewalk doors are two section center-opening panels hinged to the sidewalk or other approximately horizontal surface that the sidewalk elevator penetrates and that cover or close the entire opening of the hoistway.
Dormant Elevator, Dumbwaiter, or Escalator. An elevator, dumbwaiter, or escalator placed out of service as specified in ASME A17.1-2004 and ASME A18.1-2003.
Dumbwaiter. See under Material Handling Devices.
Undercounter Dumbwaiter. See under Material Handling Devices.
Earthquake Protection Devices. A device or group of devices which serve to regulate the operation of an elevator in a predetermined manner during or after an earthquake, consisting of:
(A) Collision Switch. A device actuated by the car or counterweight to provide information to the control that a collision between the car and the counterweight is imminent.
(B) Derailment Switch. A device actuated by the derailment of the counterweight at any point in the hoistway to provide information to the control that the counterweight has left its guides.
(C) Seismic Switch. A device activated by ground movement to provide information to the control system that a potentially damaging earthquake is imminent.
Elevator. A hoisting and lowering mechanism which moves a car or platform in fixed guides in a substantially vertical direction and which is designed to carry passengers or freight, or both, between two or more fixed landings.
A hoisting mechanism, such as a portable hoist or a tiering machine, used to elevate or lower material between two or more fixed landings and used or fixed in a permanent location will be classed as an elevator.
A hydraulic hoisting mechanism used to elevate or lower material between two or more fixed landings and used or fixed in a permanent location will be classed as an elevator.
Elevators are classified by the following types:
(A) Auxiliary Power Elevator. An auxiliary power elevator is one having a source of mechanical power, such as shafting, in common with other machinery.
(B) Carriage Type Elevator. A carriage type elevator is a hand freight elevator with a platform having no suspension sling frame, but which is raised by cables dropping from winding drums or sheaves over the wellway and connected to the platform at four or more points.
(C) Double Belt Elevator. A double belt elevator is an elevator in which the source of power is connected to the machine by a double belt system employing idling pulleys and a belt shifter, and in which the reversal of direction of the elevator is accomplished by shifting the belts without reversing the prime mover.
(D) Electric Elevator. A power elevator in which the motion of the car is obtained through an electric motor applied to the elevator without an intervening hydraulic system.
(E) Gravity Elevator. An elevator utilizing gravity to move the car.
(F) Hand Elevator. An elevator utilizing manual energy to move the car.
(G) Hand Power Man Platform Elevator. A hand power man platform elevator is a counter balanced car in guides, so arranged that a man on the platform may, by holding the brake in the off position, pull himself and the car up or down by means of a rope secured at the top and bottom of the hoistway.
(H) Hatchway Type Elevator. A hatchway type elevator is an elevator running through floor openings provided with hatch covers, each of which is opened automatically as the car approaches the landing and is closed automatically as the car leaves the landing.
(I) Hydraulic Elevator. A power elevator where the energy is applied by means of liquid under pressure to a cylinder or plunger.
1. Direct-Plunger Elevator. A hydraulic elevator where the cylinder or plunger acts directly on the platform or car frame without intermediate linkage.
2. Hydraulic Maintained-Pressure Elevator. A hydraulic elevator where liquid under pressure is available at all times for transfer into the cylinder.
3. Hydraulic Telescopic Plunger Elevator. A direct-plunger hydraulic elevator having a set of co-axial plungers.
4. Hydro-Electric or Electro-Hydraulic Elevator. A hydraulic elevator where liquid is pumped under pressure directly into the cylinder by a pump driven by an electric motor.
5. Indirect Plunger Elevator. See Roped Hydraulic Elevator.
6. Roped Hydraulic Elevator. a.k.a. “Indirect Plunger Hydraulic Elevator.” A hydraulic elevator having its piston connected to the car with wire ropes.
(J) Inclined Elevator. An elevator which travels at an angle of inclination of 70 degrees or less from the horizontal.
(K) Multideck Elevator. An elevator having two or more compartments located one immediately above the other.
(L) Observation Type Elevator. An observation type elevator is an elevator designed and arranged to travel in a hoistway that is less than fully enclosed. These elevators are typically arranged to provide a view.
(M) Platform Type Elevator. A platform type elevator is an elevator in which the platform is directly supported at three or more points by suspension members which are relied upon to maintain the platform substantially level.
(N) Power Elevator. An elevator utilizing energy other than gravitational or manual to move the car.
(O) Rack and Pinion Elevator. A rack and pinion elevator is an elevator raised and lowered by means of a rack and pinion.
(P) Screw Column Type Elevator. A screw column type elevator is an elevator raised and lowered by means of a threaded nut revolving on a spiral worm or the worm revolving inside the nut or both.
(Q) Single Belt Elevator. A single belt elevator is an elevator in which the prime mover is connected to the machine by a single belt or multiple belt, all parts of which act together, and in which the reversal of direction of the elevator is accomplished by reversing the prime mover.
(R) Steam Elevator. A steam elevator is an elevator in which the motion of the car is obtained from a steam engine directly applied to the elevator machinery.
Elevator, Construction. An elevator, used temporarily during construction, alteration or demolition of buildings or structures, for use by workers or persons connected with or related to the building project.
Elevator, Freight. An elevator used exclusively for carrying freight and on which only the operator and the persons necessary for unloading and loading the freight are permitted to ride.
Elevator, Passenger. An elevator used primarily to carry persons.
Elevator, Private Residence. See Elevator, Special Access.
Elevator, Sidewalk. A freight elevator which operates through an area (usually the sidewalk) exterior to the building or structure and floor levels below. The exterior area (sidewalk) is protected by sidewalk doors that are opened by the car as it ascends. Sidewalk elevators without sidewalk doors are permissible (See Section 3075) only where the top landing is at ground level.
Elevator, Special Access. A passenger elevator that is limited in size, capacity, rise, and speed; installed as a means of access for persons with disabilities.
Elevator, Special Purpose Personnel. A special purpose personnel elevator is an elevator for use by authorized personnel and their tools or equipment only, and where location, structure and limited usage are the determining factors.
Elevator, Stairway. See Inclined Stairway Chairlift.
Emergency Stop Switch. See Car Stop Switch.
Entrance, Elevator and Dumbwaiter. The protective assembly which closes the openings in the hoistway enclosure normally used for loading and unloading.
(A) Horizontally Sliding. An entrance in which the panel(s) or door(s) slides horizontally.
(B) Swing. An entrance in which the panel(s) or door(s) swings around vertical hinges.
(C) Vertical Sliding. An entrance in which the panel(s) or door(s) slides vertically.
Entrance Hardware. All components of an entrance exclusive of the frame, door panels, and interlocks, that are necessary to maintain the position of the panels within the assembly.
Entrance Locked Out of Service. An entrance in which the hoistway door is mechanically locked by means other than the interlock to prevent the door being opened from the car side without keys or special equipment.
Escalator or Electric Stairway. A moving, inclined, continuous stairway used for raising or lowering passengers.
(A) Conventional Escalator. An escalator on which the running gear is driven by a single drive shaft at a terminal.
(B) Modular Escalator. An escalator on which the running gear along the incline is driven by one or more drive units.
The following definitions are applicable to escalators only.
1. Balustrade. The side of an escalator extending above the steps. It includes skirt panels, interior panels, decks and handrails.
2. Deck. The transverse members of the balustrade. A high deck is located immediately below the handrail stand. A low deck is located immediately above the skirt panel, having an interior or exterior section, or both.
3. Exterior Escalator Panel. The panel enclosing the exterior side of the balustrade.
4. Interior Escalator Panel. The panel located between the skirt and the handrail stand.
5. Molding. The connecting seams between the various portions of the balustrade.
6. Newel. The balustrade termination at the landing.
7. Newel Base. The panel located immediately under the newel.
8. Skirt. The panels located immediately adjacent to the steps or treadway.
9. Tandem Operation. Escalator used in series with common intermediate landings.
Factor of Safety. The ratio of the ultimate strength to the working stress of a member under maximum static loading, unless otherwise specified in a particular Rule.
Fire Endurance. A measure of the elapsed time during which a material or assembly continues to exhibit fire resistance under specified conditions of test and performance.
Fire Resistance. The property of a material or assembly to withstand fire or give protection from it. As applied to elements of buildings, it is characterized by the ability to confine a fire or to continue to perform a given structural function or both.
Fire-Resistive. Having fire resistance (see definition).
Flat Steps. The distance, expressed in step lengths, that the leading edge of the escalator step travels after emerging from the comb before moving vertically.
Freight Platform Hoist. A freight platform hoist is a freight type hoist having no car enclosure, no hoistway enclosure and a rise of not more than 5 feet (1.52 m) in or adjacent to a loading platform or similar landing and serving two permanent landings.
Gate, Semi-automatic. A gate which is opened manually and which closes automatically as the car leaves the landing.
Governor Pull-Through Tension (Force). The magnitude of the tensile load developed in the moving governor rope after the governor rope-retarding means is actuated.
Governor Rope-Retarding Means. A mechanical means of developing a sufficient force in the governor rope to activate the car or counterweight safeties or to trip the governor rope releasing carrier, where used. Such mechanical means include, but are not limited to, rope-gripping jaws, clutch mechanisms, and traction arrangements.
Gurney Lift. See under Special Access Lifts.
Hand Power Man Platform. See under Elevators.
Hatch, Hatchway. See Hoistway. In early elevator usage a hatch or hatchway was a framed opening in a floor with a hinged or removable cover. Now incorrectly used to describe or designate an elevator hoistway.
Hoistway Access Switch. A switch located at a landing, the function of which is to permit operation of the car with the hoistway door at this landing and the car door or gate open, in order to permit access to the top of the car or to the pit.
Hoistway, Elevator or Dumbwaiter. A shaftway for the travel of one or more elevators or dumbwaiters. It includes the pit and terminates at the underside of the overhead machinery space floor or grating, or at the underside of the roof where there is no machinery over the hoistway.
(A) Blind Hoistway. The portion of a hoistway (shaft) where normal landing entrances are not provided.
(B) Multiple Hoistway. A hoistway (shaft) with more than one elevator, dumbwaiter, or material lift.
(C) Single Hoistway. A hoistway (shaft) with a single elevator, dumbwaiter, or material lift.
Hoistway Enclosure. A fixed structure, consisting of vertical walls or partitions, which isolates the hoistway from all other parts of the building or from an adjacent hoistway and in which the hoistway doors and door assemblies are installed.
Hoistway Door or Gate Locking Device. See hoistway door interlock or contact lock.
Hoistway Unit System. A series of hoistway door interlocks, hoistway door electric contacts, or hoistway door combination mechanical locks and electric contacts, or a combination thereof, the function of which is to prevent operation of the driving machine by the normal operating device unless all hoistway doors are in the closed position and, where so required by these regulations, are locked in the closed position.
(A) Hoistway Door Interlock. A device having two related and interdependent functions which prevent the operation of the driving machine by the normal operating device unless the hoistway door is locked in the closed position, and prevent the opening of the hoistway door from the landing side unless the car is within the landing zone and is either stopped or being stopped.
(B) Contact Lock or Combination Mechanical Lock and Electric Contact. A combination mechanical and electrical device the two related, but entirely independent, functions of which prevent operation of the driving machine by the normal operating device unless the hoistway gate is in the closed position, and lock the hoistway gate in the closed position and prevent it from being opened from the landing side unless the car is within the landing zone.
Hoistway Door or Gate Electric Contact. An electrical device, the function of which is to prevent operation of the driving machine by the normal operating device unless the hoistway door is in the closed position.
Hoistway Gate Separate Mechanical Lock. A mechanical device, the function of which is to lock a hoistway gate in the closed position after the car leaves a landing and prevent the gate from being opened from the landing side unless the car is within the landing zone.
Hoistway Door Interlock Retiring Cam Device. A hoistway door interlock retiring cam is a device which actuates the locking mechanism of a type of hoistway door interlock by the action of a retractable cam.
Idler Sheave: A grooved sheave used to guide or apply tension to a rope or cord.
Inclined Lift. See Inclined Elevator under Elevator.
Inclined Stairway Chairlift. a.k.a. “Stairway Elevator.” See under Special Access Lifts.
Inclined Wheelchair Lift. See under Special Access Lifts.
Jamb. Any one of the three members constituting an elevator entrance frame, head jamb, strike jamb, and return jamb.
Kinetic Energy. The kind of energy a body has by virtue of its motion.
L. C. means the California Labor Code.
Labeled. Equipment or materials to which has been attached a label, symbol, or other identifying mark of an independent certifying organization concerned with product evaluation, that maintains periodic inspection of production of labeled equipment or materials and by whose labeling the manufacturer indicates compliance with appropriate standards or performance in a specified manner.
Landing, Elevator. That portion of a floor, balcony, or platform used to receive and discharge passengers or freight. Although the vertical level is normally fixed, there are instances where the landing is arranged to vary vertically to satisfy given conditions.
Landing, Bottom Terminal. The lowest landing served by the elevator which is equipped with a hoistway door and hoistway door locking device which permits egress from the hoistway side.
Landing, Top Terminal. The highest landing served by the elevator which is equipped with a hoistway door and hoistway door locking device which permits egress from the hoistway side.
Landing, Unenclosed. A landing which is open to the atmosphere or is open to an interior court of a building.
Landing, Escalator or Moving Walk. The stationary area at the entrance to or exit from an escalator, a moving walk, or moving walk system.
Landing Zone. A zone extending from a point 18 in. (457 mm) below an elevator or material lift landing to a point 18 in. (457 mm) above the landing.
Level, Alternate. The floor or landing selected as the one to which the elevator(s) are to be dispatched by activation of the sensing device permitted by section 3041(c)(1)(B)(2).
Level, Designated. The floor or landing selected as the one to which the elevator(s) are to be dispatched by the on position of the switch required by section 3041(c)(1)(A) and the landing where the switch is intended to be located.
Leveling Device, Elevator Car. Any mechanism which will either automatically or under control of the operator move the car within the leveling zone toward the landing only, and automatically stop it at the landing.
Leveling Device, One-Way Automatic. A device which corrects the car level only in case of under-run of the car but will not maintain the level during loading and unloading.
Leveling Device, Two-Way Automatic Maintaining. A device which corrects the car level on both under-run and over-run and maintains the level during loading and unloading.
Leveling Device, Two-Way Automatic Nonmaintaining. A device which corrects the car level on both under-run and over-run but will not maintain the level during loading and unloading.
Leveling Zone. The limited distance above or below an elevator landing within which the leveling device may cause movement of the car toward the landing independently of the hoistway door interlock or car door or gate contact.
Listed. Equipment or materials included in a list published by an independent certifying organization concerned with product evaluation that maintains periodic inspection of production of listed equipment or materials and whose listing states whether that equipment or material meets appropriate standards or has been tested and found suitable for use in a specified manner.
Machine and Control Rooms, Remote. Rooms that do not share a common wall, floor, or ceiling with the hoistway.
Machine, Driving. The power unit which applies the energy necessary to raise and lower an elevator or dumbwaiter car or to drive an escalator, moving walk, or an inclined lift.
(A) Chain-Drive Machine. An indirect-drive machine having a chain as the connecting means.
(B) Direct-Drive Machine. An electric driving machine, the motor of which is directly connected mechanically to the driving sheave, drum, or shaft without the use of belts or chain, either with or without intermediate gears.
(C) Electric Driving Machine. One where the energy is applied by an electric motor. It includes the motor and brake and the driving sheave or drum, together with its connecting gearing, belt or chain, if any.
(D) Geared-Drive Machine. A direct drive machine in which the energy is transmitted from the motor to the driving sheave, drum, or shaft through gearing.
(E) Hydraulic Driving Machine. One in which the energy is applied by means of a liquid under pressure to a cylinder equipped with a plunger or piston.
(F) Hydroelectric Driving Machine. One in which the liquid is pumped under pressure directly into the cylinder by a pump driven by an electric motor without an intervening accumulator between the pump and the cylinder.
(G) Direct Plunger Driving Machine. A hydraulic driving machine in which the plunger or cylinder is directly attached to the car frame or platform.
(H) Indirect-Drive Machine. An electric driving machine, the motor of which is connected indirectly to the drive sheave, drum, or shaft by means of a belt or chain through intermediate gears.
(I) Rack and Pinion Driving Machine. An electric driving machine in which the motion of the car is obtained by power-driven rotating pinion(s) mounted on the car, traveling on a stationary rack mounted in the hoistway.
(J) Roped Hydraulic Driving Machine. One in which the energy is applied by a piston connected to the car with wire ropes, which operates in a cylinder under hydraulic pressure. It includes the cylinder, the piston, and multiplying sheaves, if any, and their guides.
(K) Screw Machine. An electric driving machine, the motor of which drives a nut on a vertical screw or rotates a vertical screw to raise or lower an elevator car.
(L) Traction Machine. A direct-drive machine in which the motion of the car is obtained through friction between the suspension ropes and a traction sheave.
1. Geared-Traction Machine. A geared-drive traction machine.
2. Gearless-Traction Machine. A traction machine, without intermediate gearing, which has the traction sheave and the brake drum mounted directly on the motor shaft.
(M) Winding-Drum Machine. A geared-drive machine in which the hoisting ropes are fastened to and wind on a drum.
(N) Worm-Geared Machine. A direct-drive machine in which the energy from the motor is transmitted to the driving sheave or drum through worm gearing.
Main Floor. The floor providing normal egress from the building.
Maintenance. A process of routine examination, lubrication, cleaning, adjustment, and replacement of parts for the purpose of ensuring performance in accordance with the applicable Code requirements.
Manlift. A device consisting of a power driven endless belt moving in one direction only, and provided with steps or platforms and handholds attached to it for the transportation of personnel from floor to floor.
Manlift, Handhold (handgrip). A handhold is a device attached to a belt which can be grasped by the passenger to provide a means of maintaining balance.
(A) Open type. One which has a handgrip surface fully exposed and capable of being encircled by the passenger's fingers.
(B) Closed type. A cup-shaped device, open at the top in the direction of travel of the step for which it is to be used, and closed at the bottom, into which the passenger may place his fingers.
Manlift, Limit switch. A device the purpose of which is to cut off the power to the motor and apply the brake to stop the carrier in the event that a loaded step passes the terminal landing.
Manlift, Rated speed. Rated speed is the speed for which the device is designed and installed.
Manlift, Split-rail switch. An electric limit switch operated mechanically by the rollers on the manlift steps. It consists of an additional hinged or “split” rail, mounted on the regular guide rail, over which the step rollers pass. It is spring loaded in the “split” position. If the step supports no load, the rollers will “bump” over the switch; if a loaded step should pass over the section, the split rail will be forced straight, tripping the switch and opening the electrical circuit.
Manlift, Step (platform). A step is a passenger carrying unit.
Manlift, Travel. The travel is the distance between the centers of the top and bottom pulleys.
Manual Reset, Escalator and Moving Walk. A means, not accessible to the general public, requiring personal intervention by an authorized person prior to restarting the escalator or moving walk.
Masonry. Build-up construction or combination of buildings units or materials of clay, shale, concrete, glass, gypsum, stone, or other approved units bonded together with mortar or monolithic concrete. Reinforced concrete is not classed as masonry.
Material Handling Devices. A hoisting or lowering mechanism which moves a car or platform in guides between two or more fixed landings and which is designed to carry inanimate objects only. Material Handling Devices are classified by the following types:
(A) Dumbwaiter. A dumbwaiter is an elevator, the floor area of which does not exceed 9 square feet, whose total inside height, whether or not provided with fixed or removable shelves, does not exceed 4 feet, the capacity of which does not exceed 500 pounds, and which is used exclusively for carrying materials.
1. Undercounter Dumbwaiter. One which has its top terminal landing located underneath a counter and which serves only this landing and the bottom terminal landing.
(B) Material Lift. A hoisting and lowering mechanism which would normally be classified as an elevator but with modifications to adapt it for the automatic movement of material by means of an integrally mounted automatic transfer device.
1. Automatic Transfer Device. A mechanism which automatically moves a load consisting of a cart, tote box, pallet, wheeled vehicle, box or similar object to and from the platform of the lift.
2. Restricted Area (Applicable to article 12.1). An area through which the loads carried by the material lift travel by automatic means. The area shall extend in front of the entrance to the lift a distance not less than that equal to the length of the load plus 4 feet and separated from the unrestricted area by a standard guardrail or equivalent barrier. The end of the restricted area where not guarded shall be marked with a yellow line on the floor.
3. Car, Material Lift. The load carrying unit including the car frame, enclosure and transfer device.
(C) Reciprocating Conveyor. A conveyor where the carrier pusher moves forward and back, or up and down in the same place.
1. Inclined Reciprocating Conveyer. A reciprocating power or gravity actuated unit (not designed to carry passengers or an operator) that receives only inanimate objects on a carrier. These units operate on inclines generally in the range of 30 deg. to 70 deg. from the horizontal.
2. Vertical Reciprocating Conveyor. A reciprocating power or gravity actuated unit (not designed to carry passengers or an operator) that receives only inanimate objects on a carrier and transmits these objects vertically from one elevation to another.
(D) The following definitions are applicable to conveyors only.
1. Actuator -A device that initiates the action of controls or controllers and is manually operated. The actuator may be a push button, toggle switch, foot pedal, hand lever, hand set timer, or any other device that performs the described function.
a. A device attached to or hung from trolleys to support the load.
b. The receptacle in which objects are placed for transmittal through a conveying system.
c. The moving part of a vertical or inclined reciprocating conveyor that supports the load.
3. Control(s) -The system governing the starting, stopping, direction of motion, acceleration, speed, retardation, identification, and function of the moving member in a predetermined manner.
4. Controller -An electromechanical device or assembly of devices for starting, stopping, accelerating, or decelerating a drive, or serving to govern in some predetermined manner the power delivered to the drive.
5. Drive -An assembly of the necessary structural, mechanical, and electrical parts that provide the motive power for a conveyer.
6. Emergency Stop -A stop arising from a sudden and unexpected need, and not as a part of the normal operation.
7. Emergency Stop Device -A device that must be actuated in an emergency situation to stop a conveyor.
8. Enclosed -Describes guarding of moving parts in such a manner that physical contact by parts of the body is precluded as long as the guard remains in place. The guarding may make use of hinged, sliding, or removable doors for inspection or lubrication.
9. Guard -A covering or barricade to prevent entry into operating components such as gear, chain, and nip guards; a structure mounted below an overhead mounted conveyor to protect personnel from falling materials.
10. Guarded -Shielded, fenced, enclosed, or otherwise protected by means of suitable enclosure, covers, casing, shields, troughs, railings, or by nature of location so as to reduce foreseeable risk of personal injury.
11. Guarded By Location -Describes moving parts so protected by their remoteness from the floor, platform, walkway, or other working level, or by their location with reference to frame, foundation, or structure as to reduce the foreseeable risk of accidental contact by persons or objects. Remoteness from foreseeable, regular, or frequent presence of public or employed personnel may in reasonable circumstance constitute guarding by location.
12. Nip Point -A point at which a machine element moving in line meets a rotating element in such a manner that it is possible to nip, pinch, squeeze, or entrap a person or objects coming into contact with one of the two members. The same definition holds for the similar point with respect to two rotating parts or two converging parts in linear movement.
13. Operator's Station -Location at which actuators are placed for the purpose of starting, stopping, reversing, or otherwise controlling the conveyor or system of conveyors in the course of normal operation.
14. Overload Device -A mechanical or electrical device designed to disconnect the driven equipment from the driving equipment in event of an overload on the conveyor.
15. Qualified Person -A person who, by profession of a recognized degree, certificate, or professional standing, or who by extensive knowledge, training, and experience has successfully demonstrated his ability to solve problems relating to the subject matter and work.
16. Rated Capacity -Rated capacity shall mean the capacity at the rated speed, as established by the manufacturer or a qualified person, at which safe and satisfactory service can be expected.
17. Rated Speed -Rated speed shall mean the speed of the conveyor, as established by the manufacturer or a qualified person, at which safe and satisfactory service can be expected.
18. Remote Control -Any system of controls in which the actuator is situated in a remote location.
19. Remote Location -Any location, with respect to the conveyor, from which the presence or position of personnel relative to the conveyor cannot be readily determined from the operator's station.
20. Safety Device -A mechanism or an arrangement placed in use for the specific purposes of preventing an unsafe condition, preventing the continuation of an unsafe condition, warning of an unsafe condition, or limiting or eliminating the unsafe effects of a possible condition.
21. Walkway -An elevated passageway for persons above the surrounding floor or ground level. Included in this definition are catwalks, footwalks, runways, and elevated walkways.
(E) Operation, Material Handling Device. Operation of a material handling device shall mean the loading, unloading and actuation of the control.
(F) Operator, Material Handling Device. The operator of a material handling device shall mean the individual trained in safe operation of the particular device.
Material Lift. See under Material Handling Devices.
May. The term “may” where used shall be construed as permissive.
Modernization. See alteration, maintenance, repair, and replacement.
Module. The increment of rise in a modular escalator that one drive unit is capable of powering.
Moving Walk. A type of passenger-carrying device on which passengers stand or walk, and in which the passenger-carrying surface remains parallel to its direction of motion and is uninterrupted.
Moving Walks are classified by the following types:
(A) Belt Type. A moving walk with a power driven continuous belt treadway.
(B) Belt Pallet Type. A moving walk with a series of connected and power driven pallets to which a continuous belt treadway is fastened.
(C) Edge-Supported Belt Type. A moving walk with the treadway supported near its edge by a succession of rollers.
(D) Pallet Type. A moving walk with a series of connected and power driven pallets which together constitute the treadway.
(E) Roller-Bed Type. A moving walk with the treadway supported throughout its width by a succession of rollers.
(F) Slider-Bed Type. A moving walk with the treadway sliding upon a supporting surface.
Next Available Landing. The first landing, in the direction of travel, that the elevator is electrically and mechanically capable of serving during the program in effect.
Nonstop Switch, Elevator. A switch which, when operated, will prevent the elevator from making registered landing stops.
Non-Interference. A feature of an elevator which gives preference to a passenger on the elevator for direction of travel and of the stops, over passengers waiting at the landings.
Operating Device. The car switch, pushbutton, lever, key, or toggle switches, or other manual device used to actuate the control.
Operation. The method of actuating the control.
(A) Automatic Operation. Operation wherein the starting of the elevator car is effected in response to the momentary actuation of operating devices at the landing, or of operating devices in the car identified with the landings, or in response to an automatic starting mechanism, and wherein the car is stopped automatically at the landings.
1. Group Automatic Operation. Automatic operation of two or more nonattendant elevators equipped with power-operated car and hoistway doors. The operation of the cars is coordinated by a supervisory control system, including automatic dispatching means, whereby selected cars at designated dispatching points automatically close their doors and proceed on their trips in a regulated manner. It includes one button in each car for each landing served and up-and-down buttons at each landing (single buttons at terminal landings). The stops set up by the momentary actuation of the car buttons are made automatically in succession as a car reaches the corresponding landings irrespective of its direction of travel or the sequence in which the buttons are actuated. The stops set up by the momentary actuation of the landing buttons may be accomplished by any elevator in the group, and are made automatically by the first available car that approaches the landing in the corresponding direction.
2. Nonselective Collective Automatic Operation. Automatic operation by means of one button in the car for each landing level served and one button at each landing, wherein all stops registered by the momentary actuation of landing or car buttons are made irrespective of the number of buttons actuated or of the sequence in which the buttons are actuated. With this type of operation the car stops at all landings for which buttons have been actuated, making the stops in the order in which the landings are reached after the buttons have been actuated, but irrespective of its direction of travel.
3. Selective Collective Automatic Operation. Automatic operation by means of one button in the car for each landing level served and by up-and-down buttons at the landings, wherein all stops registered by the momentary actuation of the car buttons are made as defined under nonselective collective automatic operation, but wherein the stops registered by the momentary actuation of the landing buttons are made in the order in which the landings are reached in each direction of travel after the buttons have been actuated. With this type of operation, all “up” landing calls are answered when the car is traveling in the up direction and all “down” landing calls are answered when the car is traveling in the down direction.
4. Single Automatic Operation. Automatic operation by means of one button in the car for each landing level served and one button at each landing, so arranged that if any car or landing button has been actuated, the actuation of any other car or landing operating button will have no effect on the operation of the car until the response of the first button has been completed.
(B) Call and Send Operation. Operation in which buttons are provided at the landings both for calling the elevator to that landing or for dispatching the elevator to other landings.
(C) Car-Switch Operation. Operation wherein the movement and direction of travel of the car are directly and solely under the control of the operator by means of a manually operated car switch or of continuous-pressure buttons in the car.
(D) Car-Switch Automatic Floor-Stop Operation. Operation in which the stop is initiated by the operator from within the car with a definite reference to the landing at which it is desired to stop, after which the slowing down and stopping of the elevator is effected automatically.
(E) Continuous-Pressure Operation. Operation by means of buttons or switches in the car and at the landings, any one of which may be used to control the movement of the car as long as the button or switch is manually maintained in the actuating position.
(F) Preregister Operation. Operation in which signals to stop are registered in advance by buttons in the car and at the landings. At the proper point in the car travel, the operator in the car is notified by a signal (visual, audible, or otherwise) to initiate the stop, after which the landing stop is automatic.
(G) Signal Operation. Operation by means of single buttons or switches, or both, in the car, and up-or-down direction buttons, or both, at the landings, by which predetermined landing stops may be set up or registered for an elevator or for a group of elevators. The stops set up by momentary actuation of the car buttons are made automatically in succession as the car reaches those landings, irrespective of its direction of travel or the sequence in which the buttons are actuated. The stops set up by the momentary actuation of the up-and-down buttons at the landing are made automatically by the first available car in the group approaching the landing in the corresponding direction, irrespective of the sequence in which the buttons are actuated. With this type of operation, the car can be started only by means of a starting switch or button in the car.
Operation, Inspection. A special case of continuous-pressure operation used for troubleshooting, maintenance, repair, adjustment, rescue, and inspection.
Overhead Structure. All of the structural members, platforms, etc., supporting the elevator machinery, sheaves, and equipment at the top of the hoistway.
Pallet, Moving Walk. One of a series of rigid platforms which together form an articulated treadway or the support for a continuous treadway.
Parking Device, Elevator. An electrical or mechanical device, the function of which is to permit the opening from the landing side of the hoistway door at any landing when the car is within the landing zone of that landing. The device may also be used to close the door.
Penetrate a Floor. To pass through or pierce a floor in such a way that the opening has a continuous perimeter and is provided only to allow the equipment to pass through the floor.
Periodic Inspection. Annual re-inspection of conveyances covered by this chapter.
Phase I Emergency Recall Operation. The operation of an elevator wherein it is automatically or manually recalled to a specific landing and removed from normal service because of activation of firefighters' service.
Phase II Emergency In-car Operation. The operation of an elevator by firefighters where the operation of the elevator is under their control.
Piston. Short cylindrical member which is provided with a sealing means which travels with the member within a hydraulic cylinder. Pistons may be coupled to the elevator by a coupling means which passes through a sealing means provided in the cylinder head.
Pit, Elevator. That portion of a hoistway extending from the threshold level of the lowest landing door to the floor at the bottom of the hoistway.
Platform Guard. A smooth metal panel extending below the car sill which eliminates the opening below the platform when the elevator is above the landing and in the leveling zone.
Plunger (Ram). A long cylindrical compression member which is directly or indirectly coupled to the car frame. This member is not provided with a sealing means. Where used in assembly with a cylinder, the sealing means is provided on the cylinder head. In the case of telescopic plungers and cylinders, a sealing means may be used in the moving plunger which is also a cylinder.
Position Indicator. A device that indicates the position of the elevator car in the hoistway. It is called a hall position indicator when placed at a landing, or a car position indicator when placed in the car.
Rated Load. The load which the elevator, dumbwaiter, escalator, moving walk, or inclined lift is designed and installed to lift or move at the rated speed.
Rated Speed. The speed at which the elevator, dumbwaiter, escalator, moving walk, manlift, or inclined lift is designed to operate under the following conditions:
1. Elevator or Dumbwaiter. The speed in the “up” direction with rated load in the car.
2. Escalator, Moving Walk, or Inclined Lift. The rate of travel of the steps, treadway, or carriage, measured along the angle of inclination, with rated load on the steps or carriage. In the case of a reversible escalator, the rated speed shall be the rate of travel of the steps in the “up” direction, measured along the angle of inclination, with rated load on the steps.
Recycling Operation, Telescopic Plunger. An operation for restoring the relative vertical positions of the multiple plungers in a telescoping plunger arrangement.
Rehabilitation. See alteration, maintenance, repair, and replacement.
Re-inspection. See periodic inspection.
Releasing Carrier, Governor Rope. A mechanical device to which the governor rope may be fastened, calibrated to control the activation of a safety at a predetermined tripping force.
Repairs. The word “repairs” where used herein shall mean only such work as is necessary to maintain present equipment in a safe and serviceable condition and to adjust or replace defective, broken, or worn parts with parts made of equivalent material, strength, and design, and where the replacing part performs the same function as the replaced part.
Replacement. The substitution of a device or component in its entirety with a new unit that is basically the same as the original for the purpose of ensuring performance in accordance with applicable Code requirements.
Restricted Area (Applicable to article 12.1). See under Material Handling Devices.
Rope, Car-Counterweight. Wire rope which does not pass over the driving means used to connect the car and counterweight.
Rope, Compensating. Wire rope used to counterbalance, or partially counterbalance, the weight of the suspension ropes.
Rope, Counterweight. Wire rope used to raise and lower the counterweight on an electric elevator having a winding drum machine or a hydraulic elevator equipped with a counterweight.
Rope, Governor. Wire rope with at least one end fastened to the safety activating means or governor rope releasing carrier, passing over and driving the governor sheave, and providing continuous information on the speed and direction of the car or counterweight.
Rope Suspension (Hoisting). Wire rope used to raise and lower an elevator car or its counterweight, or both.
Rope Equalizer, Suspension. A device installed on an elevator car or counterweight to equalize automatically the tensions in the hoisting wire ropes.
Rope-Fastening Device, Auxiliary. A device attached to the car or counterweight or to the overhead dead-end rope-hitch support which will function automatically to support the car or counterweight in case the regular wire rope fastening fails at the point of connection to the car or counterweight or at the overhead dead-end hitch.
Rope Sprocket Drive. A driving means consisting of wire rope with fixed links at constant intervals throughout its length. The links engage in slots on a grooved drive cog to provide a positive drive force.
Runby, Bottom Elevator Car. The distance between the car buffer striker plate and the striking surface of the car buffer when the car floor is level with the bottom terminal landing.
Runby, Bottom Elevator Counterweight. The distance between the counterweight buffer striker plate and the striking surface of the counterweight buffer when the car floor is level with the top terminal landing.
Runby, Top, Direct-Plunger Hydraulic Elevator. The distance the elevator car can run above its top terminal landing before the plunger strikes its mechanical stop.
Safety Bulkhead. A closure at the bottom of the cylinder located above the cylinder head and provided with an orifice for controlling the loss of fluid in the event of cylinder head failure.
Safety, Car or Counterweight. A mechanical device attached to the car frame or to an auxiliary frame, or to the counterweight frame, to stop and hold the car or counterweight in case of predetermined overspeed or free fall, or if the hoisting ropes slacken.
Screw Column. A vertical structural member provided with screw threads which supports the car of a screw column elevator. The screw column may be either in tension or compression.
Seismic Switch. See under Earthquake Protection Devices.
Shaft, Shaftway. See Hoistway.
Shall. The term “shall” where used shall be construed as mandatory.
Should. The term “should” where used shall be construed as advisory.
Sight Guard. A vertical member mounted on the hoistway side, leading edge of the hoistway door. It is used to reduce the opening between the leading edges of the hoistway door and the car door.
Signal Device, Elevator Car Flash. A device providing a signal light in the car, which is illuminated when the car approaches the landings at which a landing signal registering device has been actuated.
Signal Registering Device, Elevator Landing. A button or other device located at the elevator landing which when actuated by a waiting passenger, causes a stop signal to be registered by the car.
Signal System, Elevator Separate. A system consisting of buttons or other devices located at the landings which, when actuated by a waiting passenger, illuminate a flash signal or operate an annunciator in the car indicating floors at which stops are to be made.
Signal Transfer Device, Elevator Automatic. A device by means of which a signal registered in a car is automatically transferred to the next car following, in case the first car passes a floor for which a signal has been registered without making a stop.
Signal Transfer Switch, Elevator. A manually operated switch, located in the car, by means of which the operator can transfer a signal to the next car approaching in the same direction, when the operator desires to pass a floor at which a signal has been registered.
Slack-Rope Switch. A device which automatically causes the electric power to be removed from the elevator driving-machine motor and brake when the hoisting ropes of a winding-drum machine become slack.
Sleeving (Liner). The insertion of a smaller-diameter cylinder inside the existing cylinder of a hydraulic driving machine.
Slope, Moving Walk. The angle which the treadway makes with the horizontal.
Solid State Device. An element that can control current without moving parts.
Speed Governor (Governor). A continuous operating speed monitoring and detection device that at predetermined speeds, provides signals to the controller and imparts a retarding force to activate the car or counterweight safety.
Starter's Control Panel, Elevator. An assembly of devices by means of which the starter may control the manner in which an elevator or group of elevators function.
Special Access Lifts.
(A) Inclined Stairway Chairlift. a.k.a. “Stairway Elevator.” An inclined stairway chairlift is a seat(s) or chair(s) that travels on a stairway.
(B) Gurney Lift. A gurney lift is a hoisting and lowering mechanism, for use by a person(s) in a gurney, stretcher or similar device and an attendant(s) and possibly a support system. It consists of a platform with a minimal enclosure that moves through a fixed course either vertically or on an incline, and is used or fixed in a permanent location. The Division shall determine the specific lifts which are gurney lifts, for the purpose of these orders. This determination shall apply equally to all similar or identical lifts used in a similar manner.
(C) Platform (Wheelchair) Lift. A wheelchair lift is a hoisting and lowering mechanism for use by a person unable to use stairs. It consists of a platform with a minimal enclosure that moves through a fixed course either vertically or on an incline (which is often a stairway), and is used or fixed in a permanent location. The Division shall determine the specific lifts which are wheelchair lifts, for the purpose of these orders. This determination shall apply equally to all similar or identical lifts used in a similar or identical manner.
1. Inclined Platform (Wheelchair) Lift. An inclined wheelchair lift is a wheelchair lift designed to operate on an incline which is often a stairway.
2. Vertical Platform (Wheelchair) Lift. A vertical wheelchair lift is a wheelchair lift designed to operate vertically.
(D) The following definitions are applicable to Special Access Lift only.
1. Runway. For stairway chairlifts and wheelchair lifts, the space in which the car, platform, or seat moves.
2. Side Guard. The panels on the sides of the wheelchair lift platform not used for entrance. They are usually 42 in. (1.067m) high and are a form of car enclosure.
3. Toe Guard. Toe guard refers to the panels extending below the platform. They eliminate all accessible areas under the platform when it is above the lower landing. It may be a telescoping-type device.
Stage Lift. A stage lift is a hoisting and lowering mechanism with a platform that at some elevation is a stage or a part of a stage, such as an orchestra pit. The Division shall determine the specific lifts which are stage lifts, for the purpose of these orders. This determination shall apply equally to all similar or identical lifts used in a similar or identical manner.
Static Switching. Switching of circuits by means of solid state devices.
Stopping Devices, Normal. The automatic device used to actuate the control to slow and stop an elevator or dumbwaiter car at any landing.
Stopping Device, Elevator Landing. A button or other device located at an elevator landing which when activated causes the elevator car to stop at that floor.
Supply Piping. The piping for a hydraulic elevator between the control valves and the driving member of the driving machine.
Terminal Speed Limiting Device, Emergency. A device which automatically reduces the speed as a car approaches a terminal landing, independently of the functioning of the operating device, and the normal terminal stopping device, if the latter fails to slow down the car as intended.
Terminal Stopping Device, Emergency. A device which automatically causes the power to be removed from the electric elevator driving machine motor and brake, or from a hydraulic elevator machine, at a predetermined distance from the terminal landing, and independently of the functioning of the normal stopping device, the operating device and normal terminal stopping device, if the normal terminal stopping device does not slow down the car as intended.
Terminal Stopping Device, Final. A device which automatically causes the power to be removed from an electric elevator or dumbwaiter driving machine motor and brake, or from a hydraulic elevator or dumbwaiter machine, independently of the functioning of the normal terminal stopping device, the normal stopping device, the operating device, or any emergency terminal stopping device, after the car has passed a terminal landing.
Terminal Stopping Device, Machine Final. A final terminal stopping device operated directly by the driving machine.
Terminal Stopping Device, Normal. A device or devices used to slow down and stop an elevator or dumbwaiter car automatically at or near a terminal landing independently of the functioning of the normal stopping device or the operating device. The device includes the terminal stopping switch, together with such terminal slow-down switches necessary to stop the car at or near the terminal landing.
Threshold Comb, Moving Walk. The toothed portion of a threshold plate designed to mesh with a grooved treadway surface.
Threshold Plate, Moving Walk. That portion of the landing adjacent to the treadway consisting of one or more stationary or slightly movable plates.
Transom. A panel or panels used to close a hoistway enclosure opening above a hoistway entrance.
Travel or Rise. The vertical distance between the bottom terminal landing and the top terminal landing of an elevator, dumbwaiter, escalator, and inclined lift.
Traveling Cable. A cable made up of electric conductors which provides electrical connection between an elevator or dumbwaiter car and a fixed connection in the hoistway.
Treadway, Moving Walk. The passenger-carrying member of a moving walk.
Truck-Zoning Device, Elevator. A device which will permit the operator in the car to move a freight elevator within the truck zone with the car door or gate and a hoistway door or gate open.
Truck Zone, Elevator. The limited distance above an elevator landing within which the truck zoning device permits movement of the elevator car.
Unlocking Zone. A zone extending from the landing floor level to a point not less than 3 in. (76 mm) nor more than 18 in. (457 mm) above or below the landing.
U-Groove. A shape of groove used on the drive sheave of a double wrap traction machine, approximately a semicircle, with a radius approximately equal to the diameter of the hoist rope.
Undercutting. A process of removing, by sawing or scraping, part of the mica until it is below the surface of the copper of a commutator.
Undercut U-Groove. A modified V-groove which has the lower sides cut in the shape of a U.
Valley Break. A broken wire in a wire rope in which the outside wire of a strand breaks in the immediate vicinity of the point where it contacts a wire or wires of an adjacent strand, generally at a point not visible when the wire rope is examined externally. One end of the broken wire is long enough to reach from one valley to the next one and the other end of the broken wire generally cannot be seen.
Vane. (1) A thin piece of metal attached to a stationary structure in the hoistway to provide the actuating part of a magnetically operated switch assembly mounted on the car. These switches are used to perform several functions.
(2) A device mounted on a car door panel to transmit door operating power to the hoistway door.
Volatile Memory. Memory lost when operating power is removed.
V-Groove. One form of traction sheave groove which is contoured in the shape of a straight-sided, flat bottom V.
Vision Panel. A small glass panel located in entrance doors to permit the passengers or attendant to see when the car has reached the landing.
Waiting-Passenger Indicator. An indicator which shows at which landings and for which direction elevator hall stop-or-signal calls have been registered and are unanswered.
Weatherproof. So constructed or protected that exposure to the weather will not interfere with its successful operation.
Width, Moving Walk. The exposed width of the treadway.
Window. An assembly consisting of a surrounding frame and one or more sashes, ventilators, or fixed lights, or a combination of these, designed to be installed in a wall opening for the purpose of admitting light or air or both.
Working Pressure. The pressure measured at the cylinder of a hydraulic elevator when lifting car and its rated load at rated speed, or, with Class C-2 loading when leveling up with maximum static load.
Yield Strength. The tensile stress that is sufficient to produce a permanent deformation of 0.2%.
4. Change without regulatory effect filed 8-16-89 pursuant to Section 100, Title 1, California Code of Regulations (Register 89, No. 42).
5. Editorial correction of printing errors in subsection (b) (Register 91, No. 42).
6. Amendment of subsection (C) and Reference citation added; filed 7-1-91; operative 7-31-91 (Register 91, No. 43).
7. Change without regulatory effect amending definition of “Earthquake Protection Devices” (subsection (C)) and relocating definitions of “May” and “Material Lift” filed 8-3-98 pursuant to section 100, title 1, California Code of Regulations (Register 98, No. 32).
8. Amendment of section and Note filed 9-25-98; operative 10-25-98 (Register 98, No. 39).
9. Amendment of definition “Elevator, Private Residence” and new definition “Elevator, Special Access”filed 8-29-2001; operative 9-28-2001 (Register 2001, No. 35).
10. Amendment adding definitions of “Automated People Mover,” “Certified Competent Conveyance Inspector,” “Certified Competent Conveyance Mechanic,” “Certified Qualified Conveyance Company,” “Conveyance,” “Dormant Elevator, Dumbwaiter or Escalator,” “Periodic Inspection” and “Re-inspection” and amending definition of “Speed Governor” and Note filed 4-1-2008; operative 5-1-2008 (Register 2008, No. 14).