California Code of Regulations
Title 8 - Industrial Relations
Division 1 - Department of Industrial Relations
Chapter 4 - Division of Industrial Safety
Subchapter 6 - Elevator Safety Orders
Group I - Administrative Regulations
Article 6 - Definitions
Section 3009 - Definitions
Current through Register 2024 Notice Reg. No. 38, September 20, 2024
(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.
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:
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.
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.
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:
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:
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.
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.
The following definitions are applicable to escalators only.
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.
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.
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.
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.
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:
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:
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.
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:
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.
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.
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%.
(Title 24, Part 7, Section 7-3009)
1. Amendment of subsection (b) filed 12-22-78; effective thirtieth day thereafter (Register 79, No. 1). For prior history, see Register 75, No. 36; 76, No. 22; 76, No. 48; 77, No. 26; and 78, No. 30.
2. Amendment of subsection (b) filed 9-29-82; effective thirtieth day thereafter (Register 82, No. 40).
3. Amendment filed 5-23-88; operative 6-22-88 (Register 88, No. 22).
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).
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
