(a) machinery spaces outside the hoistway
(b) machine rooms
(c) control spaces outside the hoistway
(d) control rooms
that have a fire-resistance rating, shall be of noncombustible solid or openwork construction that meets the requirements of 22.214.171.124.2(d)(l), (2), and (3). Partitions of solid construction shall be permitted to have openings essential for ropes, drums, sheaves, and other elevator equipment.
Openwork construction shall reject a ball 25 mm (1 in.) in diameter, except where there are openings essential for ropes, drums, sheaves, and other elevator equipment.
(a) Enclosures and doors shall be unperforated to a height of 2 000 mm (79 in.) above each floor or landing and above the treads of adjacent stairways. The enclosure shall be unperforated, adjacent to, and for 150 mm (6 in.) on either side of any moving equipment that is within 100 mm (4 in.) of the enclosure.
(b) Partitions between hoistways and
(1) machinery spaces outside the hoistway
(2) machine rooms
(3) control spaces outside the hoistway
(4) control rooms
shall be of solid or openwork construction that meets the requirements of 126.96.36.199.2(d)(l), (2), and (3). Partitions of solid construction shall be permitted to have openings essential for ropes, drums, sheaves, and other elevator equipment. Openwork construction shall reject a ball 25 mm (1 in.) in diameter, except where there are openings for ropes, drums, sheaves, and other elevator equipment.
(c) Openwork enclosures, where used above the 2 000 mm (79 in.) level, shall reject a ball 25 mm (1 in.) in diameter.
(d) Openwork enclosures shall be
(1) at least 2.2 mm (0.087 in.) thick wire, if of steel wire grille
(2) at least 2.2 mm (0.087 in.) thick, if of expanded metal
(3) so supported and braced as to deflect not over 15 mm (0.6 in.) when subjected to a force of 450 N (100 lbf) applied horizontally at any point
(e) Enclosures shall be permitted to be glass, provided it is laminated glass conforming to ANSl Z97.1, 16 CFR Part 1201, or CAN/CGSB-12.1, whichever is applicable (see Part 9). Markings as specified in the applicable standard shall be on each separate piece of glass and shall remain visible after installation.
(b) the part of the load transmitted due to the application of the car safety, or where applicable, the counterweight safety
(c) compensation up-pull load where compensation tie-down is applied (see 188.8.131.52)
(d) the loads imposed by a driving machine where applicable (see 2.9)
(e) any other elevator-related loads that are transmitted to the pit floor
(a) where a machine room or control room is located above the hoistway
(b) below overhead sheaves and other equipment that are located over the hoistway and means of access conforming to 184.108.40.206.3 are not provided
(a) If of bar-type grating, the openings between bars shall reject a ball 20 mm (0.8 in.) in diameter.
(b) If of perforated sheet metal or of fabricated openwork construction, the openings shall reject a ball 25 mm (1 in.) in diameter.
When required by the building code, hoistways shall be provided with means to prevent the accumulation of smoke and hot gases.
Where hoistway pressurization is provided, it shall be designed, installed, and maintained so as not to impede elevator operation.
NOTE (2.1.4): Excessive pressurization could prevent doors, complying with 2.13.4, from closing. Air introduced into the hoistway could cause erratic operation by impingement of traveling cables, selector tapes, governor ropes, compensating ropes, and other components sensitive to excessive movement or deflection.
(a) beams, floor slabs, or other building construction making an angle less than 75 deg with the horizontal shall not project more than 100 mm (4 in.) inside the hoistway enclosure unless the top surface of the projection is beveled at an angle not less than 75 deg with the horizontal
(b) separator beams between adjacent elevators are not required to have bevels
(c) where recesses or setbacks exceeding 100 mm (4 in.) occur in the enclosure wall, the top of the recess or setback shall be beveled at an angle of not less than 75 deg with the horizontal
(d) bevels are not required if the projections, recesses, and setbacks are covered with material conforming to the following:
(1) it shall be equal to or stronger than 1.110 mm (0.0437 in.) wire
(2) it shall have openings not exceeding 25 mm (1 in.)
(3) it shall be supported and braced such that it will not deflect more than 25 mm (1 in.) when subjected to a force of 4.79 kPa (100 lbf/ft 2) applied horizontally at any point
(a) trenches or depressions shall be permitted for the installation of buffers, compensating sheaves and frames, and vertically sliding biparting hoistway doors, where structural conditions make such trenches or depressions necessary
(b) in existing buildings, where new elevators are installed or existing elevators are altered, existing foundation footings extending above the general level of the pit floor shall be permitted to remain in place, provided that the maximum encroachment of such footings does not exceed 15% of the cubic content of the pit, and further provided that it is impracticable to remove the footing
(a) the force(s) required to extend a retractable ladder from the fully retracted position to the extended and mechanically secured position shall not exceed 220 N (50 lbf)
(b) after being extended and mechanically secured, a retractable ladder shall remain secured in the extended position when subjected to a horizontal force not to exceed 2 220 N (500 lbf)
(c) the force(s) required to retract a retractable ladder from its extended position to its fully retracted position, after being unsecured, shall not exceed 220 N (50 lbf)
(d) the ladder shall be mechanically secured when in the retracted position
(a) If the door swings into the pit, it shall be located so that it does not interfere with moving equipment.
(b) If the door swings out, and the lowest structural or mechanical part, equipment, or device installed beneath the car platform, except guide shoes or rollers or safety jaw assemblies, projects below the top of the separate pit access door opening when the car is level with the bottom terminal landing
(2) the door shall be provided with a vision panel(s) that is glazed with clear wired glass not less than 6 mm (0.25 in.) thick, will reject a ball 150 mm (6 in.) in diameter, and have an area of not more than 0.03 m2 (47 in.2)
(c) The door shall provide a minimum opening of 750 mm (29.5 in.) in width and 1 825 mm (72 in.) in height.
(e) The door shall be self-closing and provided with a spring-type lock arranged to permit the door to be opened from inside of the pit without a key. Such doors shall be kept closed and locked. A key shall be required to unlock the lock from outside the hoistway. The key shall be of Group 1 Security (see 8.1).
(a) when no pit ladder is provided, not more than 1 825 mm (72 in.) vertically above the pit floor, or
(b) when a pit ladder is provided, not more than 1 825 mm (72 in.) vertically above a rung, cleat, or step. The minimum distance from the top rung, cleat, or step to the top of the pit ladder or handhold shall not be less than 1 200 mm (48 in.) (see 220.127.116.11.1 and Nonmandatory Appendix J, Fig. J-1), and
(c) with the door in the closed position, in a plane not more than 1 000 mm (39 in.) horizontally from a rung, cleat, or step of the pit ladder (see Nonmandatory Appendix J, Fig. J-1).
Where the distance from the pit floor to the underside of the plank channels or slings exceeds 2 100 mm (83 in.), with the car at the lowest landing, a means shall be permanently installed or permanently stored in the pit to provide access to the equipment on the underside of the car. When access is provided by means of a working platform it shall conform to the requirements of 18.104.22.168.2 through 22.214.171.124.6.
(a) the guard, or portion thereof, is not required on the side facing the car where there is no space greater than 500 mm (20 in.) between any adjacent combination of compensation means, suspension means, counterweight rails, and guard(s) that blocks the access to the counterweight runway
(b) where pit-mounted buffers are used, the guard is not required where the bottom of the counterweight resting on its compressed buffer is 2 130 mm (84 in.) or more above the pit floor, or above the machine or control room floor if located underneath the hoistway
(a) extend from the lowest part of the counterweight assembly when the counterweight is resting on the fully compressed buffer to a point not less than 2 100 mm (83 in.) and not more than 2 450 mm (96 in.) above the pit floor
(b) be the full width of the area being guarded
(c) not prevent determination of the counterweight runby
(d) be fastened to a metal frame reinforced and braced to be at least equal in strength and stiffness to 2 mm (0.074 in.) thick sheet steel
(e) if perforated, reject a ball 25 mm (1 in.) in diameter
(a) any equipment on the car within 300 mm (12 in.) horizontally from any side of the car platform
(b) any equipment located on or traveling with the car located within 300 mm (12 in.) horizontally from either side of the car frame centerline parallel to the plane of the guide rails
(c) any equipment mounted in or on the pit floor located within 300 mm (12 in.) horizontally from either side of the car frame centerline parallel to the guide rail
(a) conform to the requirements of ANSI Z535.4 or CAN/CSA-Z321 (see Part 9)
(b) be made of durable material and shall be securely fastened
(a) where practical difficulties prevent a sufficient pit depth or where a top clearance cannot be provided to obtain the runby specified, it shall be permitted to be reduced
(b) where spring-return-type oil buffers are used, the runby shall be permitted to be eliminated so that the buffers are compressed by amounts not exceeding those permitted by 126.96.36.199, when the car floor is level with the terminal landings
|Rated Speed, m/s (ft/min)||Runby, mm (in.)|
|Not over 0.13 (not over 25)||75 (3)|
|Over 0.13 to 0.25 (over 25 to 50)||150 (6)|
|Over 0.25 to 0.50 (over 50 to 100)||225 (9)|
|Over 0.50 to 1.0 (over 100 to 200)||300 (12)|
In no case shall the maximum bottom runby exceed
(a) 600 mm (24 in.) for cars
(b) 900 mm (35 in.) for counterweights
(a) the designed maximum bottom counterweight runby [see 2.4.4(b)]
(b) the stroke of the counterweight buffer, determined as follows:
(c) one-half of the gravity stopping distance, based on
(1) 115% of the rated speed where oil buffers are used, or 115% of the reduced striking speed when emergency terminal speed-limiting devices meeting the requirements of 2.25.4 are used and no compensating rope tie-down device in conformance with 188.8.131.52 is provided (see 8.2.4 for gravity stopping distances); or
(d) the distance to which the compensating rope tie-down device, if provided (see 184.108.40.206), limits the jump of the car when the counterweight strikes the buffers at speeds specified in 220.127.116.11.1(c) plus the distance to account for the amount of compensation rope stretch.
(a) 600 mm (24 in.) above the car crosshead assembly except as permitted in 18.104.22.168(b) when the crosshead is located over the car enclosure top or the distance which any sheave assembly mounted in or on the crosshead projects above the top of the car crosshead, whichever is greater, but in no case shall there be less than 150 mm (6 in.) clearance above the sheave assembly.
(b) 300 mm (12 in.) above the car crosshead assembly where the crosshead is adjacent to the car enclosure top. The crosshead shall not overlap the car enclosure top by more than 100 mm (4 in.) horizontally.
(c) 600 mm (24 in.) above equipment attached to and projecting above the car enclosure top, exclusive of
(1) standard railings (see also 22.214.171.124.2)
(2) areas outside of the standard railing, the vertical clearance shall be not less than 100 mm (4 in.)
(3) roller and sliding guide assemblies (see also 2.4.9)
(4) gatepost(s) for vertically sliding gates (see also 2.4.9). Spreader bars between gateposts with horizontal and vertical clearances not in compliance with 126.96.36.199.2 shall have yellow and black diagonal stripes of not less than 25 mm (1 in.) wide along the length of the spreader bar, mounted at a location visible from the car top
(a) conform to the requirements of ANSI Z535.4 or CAN/CSA-Z321 (see Part 9)
(b) be made of durable material and shall be securely fastened
NOTE (2.4.7): See Nonmandatory Appendix G.
The top of counterweight clearance shall be not less than the sum of the following items:
(a) the bottom car runby (see 2.4.2)
(c) 150 mm (6 in.)
(d) one-half of the gravity stopping distance based on
(1) 115% of the rated speed where oil buffers are used, or 115% of the reduced striking speed when emergency terminal speed-limiting devices meeting the requirements of 2.25.4 are used and no provision is made to prevent the jump of the car at counterweight buffer engagement; or
(e) the distance to which the compensating rope tie-down device, if provided (see 188.8.131.52), limits the jump of the counterweight when the car strikes the buffers at speeds specified in 2.4.8(d) plus the distance to account for the amount of compensation rope stretch
(a) where car side guides are used
(2) 20 mm (0.8 in.) for freight elevators
(b) where car corner guides are used, 20 mm (0.8 in.) The maximum clearance shall be not more than 32 mm (1.25 in.).
Where the space is underneath the counterweight and/or its guides
(a) the counterweight shall be provided with a counterweight safety conforming to 2.17.4
(a) Machine rooms and control rooms shall be enclosed with noncombustible material to a height of not less than 2 000 mm (79 in.).
(b) Machinery spaces shall be enclosed with noncombustible material to a height of not less than 2 000 mm (79 in.), or to the height of the machinery space if it is less than 2 000 mm (79 in.).
(c) Control spaces shall be enclosed with noncombustible material to a height of not less than 2 000 mm (79 in.).
(a) machine rooms and control rooms
(b) machinery spaces and control spaces outside the hoistway
(c) machinery spaces and control spaces inside the hoistway that do not have a means of access to the space as specified in 184.108.40.206.2.
(a) machine rooms, control rooms, and machinery spaces and control spaces outside the hoistway, and machinery spaces and control spaces inside the hoistway that do not have a means of access to the space as specified in 220.127.116.11.2
(b) between different floor levels in machine rooms, in control rooms, and in machinery spaces or control spaces outside the hoistway
(c) from within machine rooms or control rooms to machinery spaces and control spaces
(a) Railings conforming to 2.10.2 shall be provided on each open side.
(b) The floor of the platform shall be at the level of not more than 200 mm (8 in.) below the level of the access-door sill.
(c) The depth of the platform shall be not less than 750 mm (29.5 in.), and the width not less than the width of the door.
(a) Railings conforming to 2.10.2 shall be provided on each open side.
(b) The floor of the platform shall be located below the level of the access-door sill by a vertical distance of not more than 200 mm (8 in.) where full bodily entry is required, and by a vertical distance of not more than 900 mm (35 in.) where full bodily entry is not required.
(c) The depth of the platform shall be not less than 915 mm (36 in.) and the width not less than the width of the door or a minimum of 915 mm (36 in.), whichever is greater.
(e) The ladder or handgrips shall extend a minimum of 1 220 mm (48 in.) above the platform floor level and shall be located on the access door/panel strike jamb side of the platform.
(f) The railing on the access side shall be provided with a hinged section not less than 600 mm (24 in.) wide with a latchable end adjacent to the ladder.
(a) located to permit the required maintenance and inspection
(b) of maximum width of 600 mm (24 in.) and a maximum height of 600 mm (24 in.). These dimensions shall be permitted to be increased, provided that any resultant opening through the access opening into the hoistway shall reject a 300 mm (12 in.) diameter ball.
(a) spaces containing motor-generators, 2 130 mm (84 in.)
(b) spaces containing only overhead, secondary, or deflecting sheaves, 1 070 mm (42 in.)
(c) spaces containing overhead, secondary, or deflecting sheaves, and governors, signal machines, or other equipment, 1 350 mm (53 in.)
(a) spaces containing motor-generators, the headroom shall be not less than 2 130 mm (84 in.)
(b) spaces containing only overhead, secondary, or deflecting sheaves, the headroom shall be not less than 1 070 mm (42 in.)
(c) spaces containing overhead, secondary, or deflecting sheaves, and governors, signal machines, or other equipment, the headroom shall be not less than 1 350 mm (53 in.)
(d) as permitted in 18.104.22.168
(b) in no case be less than 1 350 mm (53 in.)
(b) support not less than the unbalanced weight of the system with no load and up to rated load (see also 2.16.8) in the car and all suspension ropes in place. The minimum factor of safety shall be not less than 3.5, and the materials used shall not have an elongation of less than 15% in a length of 50 mm (2 in.) when tested in accordance with ASTM E8.
(d) not cause stresses and deflections that exceed the applicable requirements for the structure(s) to which the means transmits load based on 100% of the static unbalanced weight of the system (see also 2.16.8)
(e) have a sign in conformance with the requirements of ANSI Z535.2 or CAN/CSA-Z321, whichever is applicable, that shall be prominently posted in the work area stating: "WARNING! Engage '_______' before maintaining or inspecting brake, emergency brake, or controller. Follow manufacturers instructions for use of '_______'" (see 22.214.171.124). Unless the means has been designed to support not less than the unsuspended car with rated load (see also 2.16.8), it shall also contain the following wording: "Elevator suspension means must be in place during use."
NOTE: Substitute name of actual means for "_______" in the above signage.
(f) be so designed as to prevent accidental disengagement
(g) when engaged, not require electrical power or the completion or maintenance of an electrical circuit to remain engaged.
The use of the car top emergency exit for egress and re-entry is permitted subject to the following:
(a) all edges of the exit opening are smooth and free of burrs
(b) means shall be provided to descend safely to the floor of the car, and subsequently ascend safely to the car top
(c) the means required in 126.96.36.199.1 shall not be arranged to be engaged at a position that would permit a vertical gap between the bottom of the vertical face of the platform guard and the elevator landing sill.
(a) a key-operated lock capable of being locked without a key
(c) a key that shall be Group 1 Security (see 8.1)
The access panels shall be kept closed and locked, shall not be self-closing, and shall be self-locking.
(b) a mechanical device shall be provided to stop vertical car movement to create a vertical clearance as required by 188.8.131.52 between the floor of the working area and the lowest part of the car, and between the floor of the working area and the counterweight where a counterweight guard in conformance with 2.3.2 is not provided.
(1) The mechanical device shall be able to stop vertical car movement at up to and including 115% of rated speed with rated load. The retardation shall not exceed that required by 2.22.3 or 2.22.4, as applicable.
(2) The mechanical device shall be permitted to be moved into the active position manually or automatically.
(3) When the mechanical device is in the active position, it shall operate an electrical contact, which when in the open position, shall permit the car to move only on inspection operation [see 184.108.40.206.1 and 220.127.116.11(d)]. The electrical contact shall be positively opened mechanically and its opening shall not depend solely on springs.
(4) A sign in conformance with the requirements of ANSI 2535.2 or CAN/CSA-2321, whichever is applicable, shall be prominently posted in the work area stating: "WARNING! Position '_______' before maintaining or inspecting brake, emergency brake, or controller. Follow manufacturers instructions for use of '_______'" (see 18.104.22.168).
NOTE: Substitute name of actual device for "_______" in the above signage.
(5) The mechanical device shall be designed to prevent accidental movement from the active position.
(6) The mechanical device shall not require electrical power or the completion or maintenance of an electrical circuit to be maintained in the active position.
(a) Where the egress is through the landing door
(1) the landing door shall be openable from the hoistway side
(2) the means shall be arranged to provide vertical clearance of not less than 1 220 mm (48 in.) between the bottom edge of the platform guard and the elevator landing
(a) where retractable stops are provided and the car is
(1) below the platform, the travel of the elevator shall be limited by a retractable stop(s) in such a manner that the car shall be stopped below the platform at least the distance required for car top refuge space (see 22.214.171.124)
(2) above the platform, the travel of the elevator shall be limited by a retractable stop(s) in such a manner that the car shall be stopped above the platform at least the distance required in 126.96.36.199; or
(a) be equipped with a retractable stop electrical device(s) (see 188.8.131.52), that shall cause the power to be removed from the elevator driving-machine motor and brake, unless the stops are completely in the retracted position.
(b) be permitted to be equipped with an electrical device(s) that permits operation of the car only on inspection operation when the platform is in the operating position and the stops are in the fully extended position. When provided with such an electrical device and the stop(s) is in the extended position, an additional stopping device conforming to 184.108.40.206 and 220.127.116.11 through 18.104.22.168 shall cause the car to stop before it strikes the movable stop(s). This additional stopping device shall be rendered ineffective when the stop(s) is in the retracted position. Any electrical device(s) used to render the additional stopping device ineffective shall be in conformance with 22.214.171.124, 126.96.36.199.1(a), 188.8.131.52.2, and 184.108.40.206.
(c) be operable from outside the hoistway or from the platform.
(e) be so designed as to prevent accidental disengagement.
NOTE: Inside the hoistway includes, but is not limited to, on or in the car, on the counterweight, or in the pit.
A motor controller shall be permitted to be located outside the specified spaces, provided it is enclosed in a locked cabinet. The locked cabinet shall be
(b) provided with cabinet door(s) or panel(s) that are not self-closing, that are self-locking, and that shall be kept closed and locked. Keys shall be Group 1 Security (see 8.1).
(c) lit by permanently installed electric lighting with a lighting intensity of at least 200 lx (19 fc) at the floor level.
(d) located in a space that is provided with natural or mechanical means to keep the ambient air temperature and humidity in the range specified by the elevator equipment manufacturer to ensure safe and normal operation of the elevator. The temperature and humidity range shall be permanently posted on the cabinet.
(a) the governor can be inspected and serviced from the top of the car or adjacent car, and the governor can be tripped for testing from the adjacent car or outside the hoistway; and means are furnished to prevent movement of the car when servicing the governor. A sign with the words "SECURE CAR AGAINST MOVEMENT BEFORE SERVICING THE GOVERNOR" shall be prominently posted and be visible from the governor. The sign shall conform to ANSI Z535.2 or CAN/CSA-Z321, whichever is applicable. The sign shall be of such material and construction that the letters and figures stamped, etched, cast, or otherwise applied to the face shall remain permanently and readily legible; and
(a) the direction of movement
(c) an indication of the speed
The display devices or the equivalent shall remain operable during a failure of the normal building power supply. The power source shall be capable of providing for the operation of the display devices or the equivalent for at least 4 h. Where batteries are used, a monitoring system shall be provided. In the event that during normal operation of the car, the monitoring indicates insufficient power to operate the display devices or the equivalent, the car shall not be permitted to restart after a normal stop at a landing.
(a) it shall not be dependent on the availability of normal power.
(b) it shall be accessible for operation by elevator personnel only with a key that is Group 1 Security (see 8.1).
(c) it shall allow the car to move only with continuous effort.
(d) if the car is moved manually, the effort required to move the car in the direction of load imbalance shall not exceed 400 N (90 lbf). If the means used is removable, it shall be stored outside the hoistway and access to the means shall be with a key that is Group 1 Security. It shall be suitably marked to indicate the machine for which it is intended.
(e) Where the manual effort required to move the car exceeds 400 N (90 lbf), a means of electrical operation shall be provided to allow the car to be moved. This means of electrical operation shall require constant pressure operating devices to move the car, and when activated, operation of the car by all other operating means shall be prevented. A failure of a single constant pressure operating device shall not permit the elevator to move or continue to move. Where batteries are used for this electrical operation, a monitoring system shall be provided. In the event that during normal operation of the car the monitoring system indicates insufficient power to move the car, the car shall not be permitted to restart after a normal stop at a landing.
(a) the devices necessary for the manual reset of the detection means for ascending car overspeed protection [see 220.127.116.11(a)(4)], and protection against unintended car movement [see 18.104.22.168(a)(4)], or
(b) the circuits of the following devices:
(1) the car-safety mechanism switch (see 22.214.171.124)
(b) have the required devices located behind a locked door or panel that does not open into the hoistway, that is not self-closing, that is self-locking, and that shall be kept closed and locked. Keys shall be of Group 1 Security (see 8.1).
(c) be provided with a stop switch, conforming to 126.96.36.199.
(d) be lit by permanently installed electric lighting with a lighting intensity of at least 200 lx (19 fc) at the floor level. A switch placed inside or close to the enclosure shall control lighting of the enclosure.
(e) include the display devices as required by 188.8.131.52.1.
(g) include the devices necessary for the manual reset of the detection means for ascending car overspeed protection [see 184.108.40.206(a)(4)], and protection against Unintended Car Movement [see 220.127.116.11(a)(4)] where these devices are not accessible from outside the hoistway.
(h) where the circuits of the devices in 18.104.22.168.1(b)(l) through (4) are not accessible from outside the hoistway, include landing inspection operation in conformance with 22.214.171.124.4, and that shall be permitted to render ineffective the following electrical protective devices, individually or as a group or groups, in conformance with the requirements of 126.96.36.199.1(a), 188.8.131.52.2, and 184.108.40.206:
(1) the car-safety mechanism switch (see 220.127.116.11)
(a) for machinery spaces and control spaces, and
(b) for machine rooms and control rooms, inside the room and where practicable on the lock-jamb side of the access door
(a) This means shall be independent of the elevator control and shall not be self-resetting.
(b) Heat detectors and sprinkler flow switches used to initiate main line elevator power shutdown shall comply with the requirements of NFPA 72.
Enclosed moving, rotating, hanging machinery, equipment, stationary decorative lighting, stationary signage or other stationary special effects devices, securely attached to either one or more of the car, counterweight, or hoistway shall be permitted, provided that the elevator, including the equipment and devices, conforms to 2.4, 2.5, 2.8.1, 18.104.22.168.1, 2.15.7, 22.214.171.124, and 126.96.36.199. Any unenclosed moving, rotating, or hanging machinery or equipment, attached to the exterior of the car or counterweight, interior of the hoistway, exterior of the car, or any other elevator equipment in the hoistway is prohibited unless it is used in conjunction with the designed use of the elevator.
Machines, machinery, sheaves, and hitches shall be supported by overhead beams, structural floors, structural walls, or guide rails.
(a) the load resting on the beams and supports, that shall include the complete weight of the machine, sheaves, controller, governor, and any other equipment, together with that portion, if any, of the machinery space, machine room, control space, or control room floor supported thereon
(b) two times the sum of the tensions in all wire ropes supported by the beams, floors, and their supports with rated load in the car
NOTE [188.8.131.52(b)]: These tensions are doubled to take care of accelerations and decelerations.
184.108.40.206 Foundations, Beams, and Floors for Machinery and Sheaves Not Located Directly Over the Hoistway
(a) secondary or deflecting sheaves of traction elevators
(b) devices and their accessories for limiting or retarding car speed
(a) Structural Steel. AISC Book No. S326 or CAN/CSA-S16.1, whichever is applicable (see Part 9).
2.9.5 Allowable Deflections of Machinery and Sheave Beams, Their Supports, and Any Support Members Loaded in Bending That Transmit Load to Guide Rails or Structural Walls
The allowable deflections of machinery and sheave beams, their immediate supports, and any support members loaded in bending that transmit load to guide rails or structural walls under static load shall not exceed 1/1666 of the span.
Machinery and sheave beams, supports, any support members that transmit load to guide rails or structural walls and any fastenings subject to forces due to the application of the emergency brake (see 2.19.4) shall be designed to withstand the maximum forces developed during the retardation phase of the emergency braking so that the resulting stresses due to the emergency braking and all other loading acting simultaneously, if applicable, shall not exceed those specified in 2.9.4.
In machinery spaces, machine rooms, control spaces, and control rooms, the following shall be guarded to protect against accidental contact:
(a) driving-machine sheaves and ropes whose vertical projection upon a horizontal plane extends beyond the base of the machine, unless the driving-machine sheave is so located as to minimize the possibility of contact
(c) exposed gears, sprockets, tape or rope sheaves, or drums of selectors, floor controllers, or signal machines, and their driving ropes, chains, or tapes
(d) keys, keyways, and screws in projecting shafts Handwinding wheels and flywheels that are not guarded shall have yellow markings.
A standard railing shall be substantially constructed of metal and shall consist of a top rail, intermediate rail or equivalent structural member or solid panel, and toe-board.
(a) a force of at least 890 N (200 lbf) applied in any lateral or downward vertical direction, at any point along the top rail.
(b) a force of at least 666 N (150 lbf) applied in any lateral or downward vertical direction at any point along the center of the intermediate rail, member, or panel. If the standard railing is a solid panel extending from the top rail to the toe-board, the application of the force specified in 220.127.116.11(a) shall be considered to meet the requirements of 18.104.22.168(b).
(c) a force of 225 N (50 lbf) applied in a lateral direction to the toe-board.
(a) The clear opening shall be at least 700 mm (28 in.) wide and 2 030 mm (80 in.) high.
(b) It shall be easily accessible and free from fixed obstructions.
(c) It shall be either of the horizontally sliding or swinging single-section type, irrespective of the type of door installed at other landings.
(d) It shall be self-closing and self-locking and shall be marked, in letters not less than 50 mm (2 in.) high, "DANGER, ELEVATOR HOISTWAY."
(f) It shall be unlocked from the landing side only through the use of a cylinder-type lock, having not less than five pins or five discs. The cylinder lock shall
(1) not be unlocked by any key that will open any other lock or device used for any purpose in the building
(2) be so designed that the key shall be removable only in the locked position
(g) It shall be openable from the hoistway side without the use of a key.
(h) The key shall be of Group 1 Security (see 8.1). This key shall also be made available to emergency personnel during an emergency.
(i) A hinged self-closing barrier independent of the door shall be installed horizontally across the entrance on the hoistway side at a height of 1 070 mm (42 in.). The barrier shall not open into the hoistway.
(a) horizontally sliding
(b) horizontally swinging, single-section
(c) combination horizontally sliding and swinging
(d) hand- or power-operated vertically sliding that slide up to open
(a) horizontally sliding
(b) swinging, single-section
(c) combination horizontally sliding and swinging
(e) vertically sliding biparting counterbalanced (see 2.16.4)
(f) vertically sliding counterweighted, single- or multisection
(a) for freight elevators that can be operated only from the car; or
(b) for freight elevators not accessible to the general public that can be operated from outside the hoistway, and that are located in factories, warehouses, garages, and similar industrial buildings.
(a) freight elevators not accessible to the general public, and that are located in factories, warehouses, garages, and similar industrial buildings are permitted to have single-section or center-opening two-section horizontally swinging doors conforming to 22.214.171.124; or
(b) for swinging doors used on elevators with automatic and continuous-pressure operation, the distance shall be permitted to be increased from 19 mm to 57 mm (0.75 in. to 2.25 in.) if such doors are emergency doors conforming to 2.11.1. (See also 126.96.36.199.)
(a) the top terminal landing
(b) the bottom terminal landing
(a) The building code.
(c) The additional door or device shall not interfere with the fire-resistance rating and operation of the hoistway entrance. Direct or mechanical attachment (i.e., welding, holes, bolts, or rivets) shall not be made to hoistway doors or frames, unless the additional door or device and the hoistway elevator entrance are listed as a complete assembly by a certifying organization.
(d) Additional doors or devices when in the closed position shall not prevent firefighters from visually observing the elevator landing (lobby) when the elevator hoistway door is no more than one-quarter open.
(e) Additional doors or devices shall be permitted to be deployed only at those hoistway openings of elevators where fire alarm initiating devices used to initiate Phase I Emergency Recall Operation associated with that elevator have been activated.
NOTE: It is recommended that all additional doors or devices deployed in front of hoistway doors shall be cleared (returned to open/standby position) by authorized or emergency personnel prior to removing the elevator from Phase I Emergency Recall Operation and returning to normal operation. It is recommended in the case of an unintended deployment, authorized personnel should return doors to the open or standby position.
(a) clear wire glass not less than 6 mm (0.25 in.)
(b) other transparent glazing material not less than 6 mm (0.25 in.) thick that meets the impact safety standard 16 CFR Part 1201 or CAN/CGSB-12.1, CAN/CGSB-12.11, or CAN/CGSB-12.12, whichever is applicable (see Part 9)
(a) Grilles shall be sized to fit within or over the vision panel frame and completely cover the vision panel opening in the hoistway door.
(b) Grilles shall be secured by means that deter removal by common tools.
(c) Grilles shall contain openings that shall be not larger than 19 mm × 19 mm (0.75 in. × 0.75 in.) in diameter. Such openings shall be spaced at 25 mm (1 in.) center-to-center.
(d) Grille edges shall be free of burrs and beveled.
(e) Grilles shall be installed on the hoistway side of the door.