Loading (50 kb)...'
(continued)
s 3085.1. Hoistways and Hoistway Enclosures [Rule 1500.1].
(a) Hoistways adjacent to and within 4 ft. (1.22 m) of areas permitting passage of people (e.g., passageways, stairwells, elevator landings) shall be enclosed to a height of not less than 8 ft. (2.44 m) above the floor or stair treads. The enclosure shall be of sufficient strength to prevent contact between the enclosure material and the car or counterweight when the enclosure is subjected to a force of 250 lbs (113 kg) applied at right angles at any point over an area of 4 in. (102 mm) by 4 in. (102 mm). Openwork enclosures may be used and shall reject a ball 1 in. (25 mm) in diameter and shall be so located as to provide at least 4 in. (102 mm) between the outside of the enclosure and the closest member of any moving object inside the enclosure. Enclosures within 4 in. (102 mm) of moving equipment shall have no openings exceeding 1/2 in. (13 mm) in diameter.
(b) The Division shall be provided with engineering details and drawings approved by a California registered engineer, competent in this field, showing the adequacy of the supporting members, foundations and building attachments to safely withstand the forces generated during normal operation and safety tests. The installation of the elevator shall be in conformance with these plans and details.
(Title 24, Part 7, Section 7-3085.1)
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
Group II regulations apply to existing elevators installed prior to October 25, 1998. Italicized paragraphs, sentences, or phrases apply to all existing elevators while non-italicized apply to elevators installed after 1970 or after the date the regulation was adopted.
s 3085.2. Electric Wiring, Pipes and Ducts.
Electric wiring, pipes and ducts shall comply with the requirements of CCR, Title 24, Part 3, Article 620.
Exception: to Section 3085.2: Main feeders supplying power for the elevator.
(Title 24, Part 7, Section 7-3085.2)
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
s 3085.3. Horizontal Car and Counterweight Clearances [Rule 1500.2].
(a) Horizontal car and counterweight clearances shall conform to the requirements of Section 3018 and subsection 3085.6(a).
(b) Where the distance between the car sill and the facia, where provided, or the building structure exceeds 7 in. (178 mm), the car door or gate shall be equipped with an interlock or contact lock.
(Title 24, Part 7, Section 7-3085.3)
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
s 3085.4. Pits, Runby, and Top Clearances [Rule 1500.3].
(a) Pits.
(1) A pit shall be provided for every elevator. In every pit a stop switch conforming to the requirements of subsection 3040(b)(7) shall be provided. [1500.3a]
(2) Access to pits over 3 ft. (.91 m) above or below the pit access door shall comply with the requirements of subsection 3016(d)(4) and (5).
(3) Pits shall be equipped and maintained to comply with the requirements of subsections 3016(e), (f) and (g), except that the light may be omitted if the elevator is exterior to the building.
(4) Where necessary because liquid can collect, design and construction of pits shall comply with the requirements of subsection 3016(b).
(b) Protection of spaces below hoistways not extending to the lowest level of the structure shall conform to the applicable requirements of Section 3019. [1500.3b]
(c) Bottom runby shall conform to the requirements of subsections 3017(a), (b), (c) and (d). [1500.3c]
(d) There shall be a clearance of not less than 30 in. (762 mm) from the highest projection of the car top and/or the crosshead and the nearest part of the overhead structure, when the counterweight is resting on its fully compressed buffer. For rack and pinion elevators without counterweights, there shall be a clearance of not less than 30 in. (762 mm) from the highest projection of the car top and the nearest part of the overhead structure, when the car has reached the uppermost limit of its travel. [1500.3d]
(e) A floor conforming to the requirements of subsection 3010(d) shall be provided at the top of the hoistway. [1500.3e]
(Title 24, Part 7, Section 7-3085.4)
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
s 3085.5. Overhead Machinery Beams and Supports [Rule 1500.4].
(a) All machinery and sheaves shall be so supported and secured as to effectively prevent any part from becoming loose or displaced.
(b) If bolts in tension are used, the bolts shall be provided with lock nuts (double nutted) and a cotter pin at the end.
(c) Beams directly supporting machinery shall be of steel or reinforced concrete.
(d) Machinery or equipment shall be secured to and supported on, or from the top of overhead beams or floors.
EXCEPTIONS to subsection 3085.5(d):
1. Secondary or deflecting sheaves of traction elevators.
2. Devices and their accessories for limiting or retarding car speed.
3. Driving machines on the car.
(e) Cast iron in tension shall not be used for supporting members for sheaves where they are hung beneath beams. [1500.4a]
(f) The total load on overhead beams shall be equal to the weight of all apparatus resting on the beams plus twice the maximum load suspended from the beams. [1500.4b]
Note: The object in doubling the suspended load is to allow for impact, accelerating stresses, etc.
(1) The load resting on the beams shall include the complete weights of the driving machine, sheaves, controller, etc.
(2) The load suspended from the beams shall include the sum of the tensions in all ropes suspended from the beams.
(g) The factor of safety for overhead beams and their supports shall be not less than 5 for steel and 6 for reinforced concrete. [1500.4c]
(h) Overhead beams and supports shall conform to the requirements of Section 3015. [1500.4d]
(Title 24, Part 7, Section 7-3085.5)
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
s 3085.6. Counterweights [Rule 1500.5].
(a) Where a counterweight runway is not in the same hoistway as the car, an enclosure meeting the requirements of Section 3085.1 shall be provided.
(b) Access shall be provided for inspection, maintenance and repair of an enclosed counterweight and its ropes. Doors in the counterweight enclosures shall be self-closing and shall be provided with:
(1) An electric contact, the opening of which will remove power from the elevator driving machine motor and brake; and
(2) A self-locking keyed tumbler lock. [1500.5b]
(c) When the counterweight is in the same hoistway as the car, a guard meeting the requirements of subsection 3013(b) shall be provided.
(Title 24, Part 7, Section 7-3085.6)
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
Group II regulations apply to existing elevators installed prior to October 25, 1998. Italicized paragraphs, sentences, or phrases apply to all existing elevators while non-italicized apply to elevators installed after 1970 or after the date the regulation was adopted.
s 3085.7. Hoistway Doors and Gates [1500.6].
(a) Where hoistway doors or gates are required, the full width of each landing opening shall be protected to its full height, or 8 ft (2.44 m), whichever is less, by doors or gates. The entire entrance assembly shall be capable of withstanding a force of 250 lbs (113 kg) applied on the landing site at right angles to, and approximately at, the center of a panel. This force shall be distributed over an area of 4 in. (102 mm) by 4 in. (102 mm). There shall be no permanent displacement or deformation of any parts of the entrance assembly resulting from this test. Openwork entrances shall reject a ball 1 in. (25 mm) in diameter. [1500.6a]
(b) The hoistway face of the landing doors or gates shall not project into the hoistway beyond the landing sill. No hardware, except that required for door locking devices or contacts, signals or door-operating devices, shall project into the hoistway beyond the line of the landing sill. [1500.6B]
(c) Hoistway doors or gates shall be so arranged that it will not be necessary to reach behind any panel or jamb to operate them. [1500.6d]
(d) Hangers conforming to the requirements of subsection 3020(b)(17) shall be provided. [1500.6e]
(e) The distance between the hoistway doors or gates and the hoistway edge of the landing sill shall not exceed 21/4 in. (57 mm). The distance between the hoistway faces of the landing door or gate and the car door or gate shall not exceed 51/4 in. (133 mm). [1500.6f]
(f) Power operated hoistway entrance doors shall be unperforated and shall meet the requirements of Section 3022.
(Title 24, Part 7, Section 7-3085.7)
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
s 3085.8. Operating Devices and Control Equipment [Section 1501].
(a) Operating devices and control equipment shall conform to the requirements of Section 3040 except subsection 3040(a)(4), top of car operating devices.
(b) A top of car operating station may be provided and, if provided, shall conform to the requirements of subsection 3040(a)(4).
(Title 24, Part 7, Section 7-3085.8)
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
Group II regulations apply to existing elevators installed prior to October 25, 1998. Italicized paragraphs, sentences, or phrases apply to all existing elevators while non-italicized apply to elevators installed after 1970 or after the date the regulation was adopted.
s 3085.9. Locking Devices for Hoistway Doors or Gates [Rule 1501.2].
Hoistway doors or gates shall be provided with approved hoistway-door interlocks complying with Section 3021.
Exception to Section 3085.9(a): Stationary cam, zoned interlocks may be used on two landing, two opening installations where permitted by the Division.
(Title 24, Part 7, Section 7-3085.9)
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
Group II regulations apply to existing elevators installed prior to October 25, 1998. Italicized paragraphs, sentences, or phrases apply to all existing elevators while non-italicized apply to elevators installed after 1970 or after the date the regulation was adopted.
s 3085.10. Operation [Rule 1501.3].
Operation shall be one of the following:
(1) Continuous-pressure.
(2) Momentary-pressure with up-down, or call-send, buttons or switches in the car and at each landing.
(3) Single-automatic push button.
(4) Selective-collective. [1501.3a]
(Title 24, Part 7, Section 7-3085.10)
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
Group II regulations apply to existing elevators installed prior to October 25, 1998. Italicized paragraphs, sentences, or phrases apply to all existing elevators while non-italicized apply to elevators installed after 1970 or after the date the regulation was adopted.
s 3085.11. Car Guide Rails and Guide Rail Fastenings [Rule 1502.1].
(a) Guide rails and guide rail fastenings shall be of steel. [1502.1a]
Exception to Subsection 3085.11(a): Where steel may present a hazard, as in chemical or explosive atmospheres, guide rails may be of selected wood or other suitable non-ferrous materials.
(b) Guide rails shall be securely fastened, shall not deflect more than 1/4 in. (6 mm) under normal operation and shall have their joints well fitted and strongly secured. Guide rails, and their joints and fastenings shall withstand, without failure, the application of the car safety when stopping the car with its rated load. [1502.1b]
(c) Guide rails shall extend from the bottom of the hoistway to a sufficient height above the top landing to prevent the guide shoes from running off the rails when the car or counterweight is at its extreme upper position. [1502.1c]
(d) For rack and pinion elevators adequate provisions shall be made to prevent an ascending car from running off the guides and mast to prevent disengagement of the safety pinion from the rack where a rack and pinion car holding safety is used.
(Title 24, Part 7, Section 7-3085.11)
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
s 3085.12. Car and Counterweight Buffers [Rule 1502.2].
(a) Car and counterweight buffers shall be provided and shall conform to the applicable requirements of Section 3031.
(b) For rack and pinion elevators, spring buffers, where used, shall be so designed and installed that they will not be fully compressed when struck by the car with its rated load at governor tripping speed where the safety is governor operated, or at 125% of rated speed where the safety is not governor operated. Kinetic energy from the drive unit shall be taken into account in the design calculations. The effect of the counterweight, where used, may also be taken into account in the design calculations.
(Title 24, Part 7, Section 7-3085.12)
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
Group II regulations apply to existing elevators installed prior to October 25, 1998. Italicized paragraphs, sentences, or phrases apply to all existing elevators while non-italicized apply to elevators installed after 1970 or after the date the regulation was adopted.
s 3085.13. Counterweight Guiding and Construction [Rule 1502.3].
(a) Counterweights shall be guided to prevent horizontal movement. Guide rails, where used, shall conform to the requirements of Section 3085.11. [1502.3a]
(b) A car counterweight on drum machines shall not be of sufficient weight to cause slackening of any car hoisting rope during acceleration or retardation of the car. [1502.3b]
(c) Types of Counterweight Construction [1502.3c]
(1) One-piece solid or laminated steel counterweights may be used.
(2) The counterweight sections, if sections are used, whether carried in a frame or not, shall be fastened together by at least two tie rods which shall pass through all weight sections. Tie rods shall be provided with lock nuts (double nutted) and cotter pins at each end.
EXCEPTION to subsection 3085.13(c): Tie rods are not required were other means are provided to retain weight sections in place if they become broken.
(Title 24, Part 7, Section 7-3085.13)
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
s 3085.14. Car Construction [Rule 1502.4].
(a) Elevator car frames shall be constructed of metal. Elevator car platforms shall be constructed of metal or a combination metal and wood. Where wood is used, the platform shall conform to the requirements of subsection 3033(f). Car frames and platforms shall have a factor of safety of not less than 5, based on the rated load. [1502.4a]
(b) Cast iron shall not be used in the construction of any member of the car frame or platform other than for guide shoes and guide-shoe brackets. [1502.4b]
(c) Glass except for glass meeting the requirements of subsection 3034(a)(7), shall not be used inside elevator cars except for the car light and accessories necessary for the operation of the car or for car door vision panels which, if provided, shall conform to the requirements of subsection 3034(b)(4). [1502.4c]
(d) The car shall not have more than one compartment unless approved by the Division prior to installation. [1502.4d]
(e) All material or personnel to be transported shall be totally within the car compartment and a suitable sign to this effect shall be posted.
(Title 24, Part 7, Section 7-3085.14)
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
Group II regulations apply to existing elevators installed prior to October 25, 1998. Italicized paragraphs, sentences, or phrases apply to all existing elevators while non-italicized apply to elevators installed after 1970 or after the date the regulation was adopted.
s 3085.15. Car Enclosures [Rule 1502.5].
(a) Except at the entrance, cars shall be fully enclosed with metal at sides and top. The enclosure at the sides shall be solid or of openwork which will reject a ball of 1 in. (25 mm) in diameter. Glass, or other transparent materials, if used as part of the enclosure, shall comply with the requirements of subsection 3034(b)(5). The minimum clear height inside the car shall be 78 in. (1.98 m). [1502.5a]
(b) The car enclosure shall be secured to the platform in such a manner that it cannot work loose or become displaced in regular service. [1502.5b]
(c) Each car shall be provided with an electric light and a light control switch. The light shall provide illumination of at least 2 1/2 foot candles (27 1x) at the landing edge of the car platform. Car lights and convenience outlets shall be fed from a separate branch circuit, independent of the motor circuit power feeders. [1502.5c]
(d) When car size and construction permit, an emergency exit with a cover shall be provided in the top of the elevator car enclosure conforming to the following requirements:
(1) The exit opening shall have an area of not less than 352 in. 2 (0.227 m 2), and shall not measure less than 16 in. (406 mm) on any side.
(2) The exit shall be so located as to provide a clear passageway unobstructed by fixed elevator equipment located in, or on top of, the car.
(3) The exit shall open outward and shall be hinged, or otherwise attached, to the car top.
(4) The exit cover shall be equipped with a switch or contact that, when opened, will cause a device to remove power from the machine motor and brake. The exit cover switch or contact shall be of a manual reset type. [1502.5d]
(e) Where the machine or control panel are located on the car top, the following shall be provided:
(1) Standard guardrails and toeboard;
(2) Worklight, light switch and convenience outlet; and
(3) Car top operating station conforming to subsection 3040(a)(4).
(Title 24, Part 7, Section 7-3085.15)
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
s 3085.16. Car Doors or Gates [Rule 1502.6].
(a) A car door or gate shall be provided at each entrance to the car which, when closed, shall guard the opening to its full height. Car doors may be of solid or openwork construction which will reject a ball 1 in. (25 mm) in diameter. Collapsible car gates shall comply with subsection 3034(e)(5).
(b) A car door or gate contact meeting the requirements of subsection 3034(d)(2) shall be provided.
(Title 24, Part 7, Section 7-3085.16)
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
Group II regulations apply to existing elevators installed prior to October 25, 1998. Italicized paragraphs, sentences, or phrases apply to all existing elevators while non-italicized apply to elevators installed after 1970 or after the date the regulation was adopted.
s 3085.17. Car Safeties and Governors [Rule 1502.7].
(a) Traction and drum type elevators suspended by wire ropes shall be provided with an approved car safety capable of stopping and sustaining the car with rated load. Safeties, testing, and marking plates shall comply to the requirements of Section 3035. [1502.7a]
(b) The car safety shall be actuated by an approved speed governor. The governor, governor rope, and operation shall conform to the requirements of Section 3036.
(c) The speed governor shall be located where it cannot be struck by the car or counterweight in case of overtravel and where there is sufficient space for full movement of the governor parts.
(d) Rack and pinion-type elevators shall be provided with one or more safeties acceptable to the Division. The safeties shall be attached to the car frame or supporting structure. All car safeties shall be mounted on a single car frame and shall operate on one pair of guide members or on one vertical rack. [1500.7b]
(1) Stopping Distances. The travel of the car, measured from the point at which the governor trips to the point of full stop shall not exceed the following values: (for higher speeds see Section 3085.19 exception)
(A) For car safeties: 64 in. (1.63 m).
(B) For counterweight: 78 in. (1.98 m).
(2) A metal plate shall be securely attached to each safety so as to be readily visible and shall comply with the requirements of subsection 3035(n).
(3) Governor ropes shall conform to the requirements of subsection 3036(e), when applicable.
(e) The motor-control circuit and the brake-control circuit shall be opened before, or at the time, the safety applies. [1502.7c]
(f) A car safety device which depends upon the completion or maintenance of an electric circuit for the application of the safety shall not be used. Car safeties shall be applied mechanically. [1502.7d]
(g) The minimum factors of safety and stresses of safety parts and any associated rope connections shall comply with subsection 3035(1). [1502.7e]
(Title 24, Part 7, Section 7-3085.17)
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
Group II regulations apply to existing elevators installed prior to October 25, 1998. Italicized paragraphs, sentences, or phrases apply to all existing elevators while non-italicized apply to elevators installed after 1970 or after the date the regulation was adopted.
s 3085.18. Capacity and Data Plates [Rule 1502.8].
(a) Capacity and data plates, conforming to the requirements of subsection 3037(c), shall be provided.
Exception to subsection 3085.18(a): For cars having no crosshead, the data plate shall be located inside the car.
(b) A conspicuous sign shall be posted that will convey the message that use of the elevator is limited to authorized personnel only.
(Title 24, Part 7, Section 7-3085.18)
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
Group II regulations apply to existing elevators installed prior to October 25, 1998. Italicized paragraphs, sentences, or phrases apply to all existing elevators while non-italicized apply to elevators installed after 1970 or after the date the regulation was adopted.
s 3085.19. Limitation of Load, Speed and Platform Area [Rule 1502.9].
(a) The rated load shall not exceed 650 lbs (294 kg).
(b) The inside net platform area shall not exceed nine (9) ft 2 (0.84 m 2).
(c) The minimum rated load shall not be less than that based on 70 lb/ft 2 (3.35 kPa) of inside net platform area or 250 lbs (113 kg) whichever is greater.
(d) The rated speed shall not exceed 100 fpm (0.51 m/s).
Exception to Section 3085.19: The capacity and/or speed may increased if the Division approves and the approval shall be based on data submitted before installation or alteration indicating compliance with the applicable requirements of subsection 3000(h), Major Alterations. For rack and pinion type elevators the data submitted shall include engineering details and calculations where applicable.
(Title 24, Part 7, Section 7-3085.19)
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
Group II regulations apply to existing elevators installed prior to October 25, 1998. Italicized paragraphs, sentences, or phrases apply to all existing elevators while non-italicized apply to elevators installed after 1970 or after the date the regulation was adopted.
s 3085.20. Driving Machines and Sheaves [Rule 1502.10].
(a) Driving machines shall be of the traction, drum, screw, or rack and pinion type. The installation of belt-drive and chain-drive machines is prohibited. [1502.10a]
(1) Screw machines shall conform to the requirements of Section 3088.
(2) The rack and pinion drive shall consist of one or more power-driven rotating pinions mounted on the car and arranged to travel on a stationary vertical rack mounted in the hoistway. The drive shall have at least one pinion, one rack, and two backup rollers. The pinion and rack shall be of steel with a minimum safety factor of eight for the pinion and the rack. Driving machines located within the car shall be fully enclosed with solid or openwork metal which shall reject a ball 1/2 in. (13 mm) in diameter and which shall be locked.
(b) Winding drums, traction sheaves and overhead and deflecting sheaves shall be of cast iron or steel and of a pitch diameter or not less than 30 times the diameter of the wire suspension ropes. The rope grooves shall be machined. [1502.10b]
Exception to subsection 3085.20(b): Where 8 x 19 steel ropes are used on a drum type machine installation, the pitch diameter of drums and sheaves may be reduced to 21 times the diameter of the rope.
(c) The factor of safety for driving machines and sheaves shall conform to the requirements of subsection 3038(c). [1502.10c]
(d) Bolts transmitting torque and set screws shall conform to the requirements of subsection 3038(d). [1502.10d]
(e) Friction-gearing or clutch mechanisms shall not be used for connecting the drum or sheaves to the main driving mechanism. [1502.10e]
(f) Worms and worm gears made of cast iron shall not be used. [1502.10f]
(g) Driving machines shall be equipped with brakes meeting the requirements of subsection 3038(h). [1502.10g]
(h) A single ground or short circuit, a counter-voltage or a motor field discharge shall not prevent the brake magnet from allowing the brake to set when the operating device is placed in the stop position. [1502.10h]
(i) A permanent, safe and convenient means of access to elevator machine rooms and overhead machinery spaces shall be provided for authorized personnel. [1502.10i]
(Title 24, Part 7, Section 7-3085.20)
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
Group II regulations apply to existing elevators installed prior to October 25, 1998. Italicized paragraphs, sentences, or phrases apply to all existing elevators while non-italicized apply to elevators installed after 1970 or after the date the regulation was adopted.
s 3085.21. Suspension Means [Rule 1502.11].
(a) Suspension means shall consist of not less than two wire ropes. Only iron (low-carbon steel) or steel wire ropes having the commercial classification "Elevator Wire Rope," or wire rope specifically constructed for elevator use, shall be used for the suspension of elevator cars and for the suspension of counterweights. The wire material for ropes shall be manufactured by the open-hearth or electric furnace process or their equivalent. [1502.11a]
(b) The minimum diameter of any suspension rope shall be not less than 3/8 in. (9.5 mm). [1502.11b]
(c) Rope data shall be indicated on the crosshead data plate as required by subsection 3042(b).
(d) A rope data tag shall be provided that meets the requirements of subsection 3042(c).
(e) The factor of safety of the suspension means shall conform to subsection 3042(e) passenger elevators. [1502.11c]
(f) The arc of contact of a wire rope on a traction sheave and the shape of the grooves shall be sufficient to produce adequate traction under all load conditions. [1502.11d]
(g) All wire ropes anchored to a winding drum shall have not less than one full turn of rope on the drum when the car or counterweight has reached its limit of possible over-travel, including a fully compressed buffer. Each turn of the wire rope on the winding drum shall be in a separate groove on the drum. [1502.11e]
(h) No car or counterweight rope shall be lengthened or repaired by splicing. If one wire rope of a set is worn or damaged and requires replacement, the entire set of ropes shall be replaced. [1502.11f]
(i) The winding-drum ends of car and counterweight wire ropes shall be secured by clamps on the inside of the drum or by one of the methods specified in subsection 3085.20(h) for fastening wire ropes to car or counterweight. [1502.11g]
(j) The car or counterweight ends of wire ropes shall be fastened as required by Section 3042.
(Title 24, Part 7, Section 7-3085.21)
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
Group II regulations apply to existing elevators installed prior to October 25, 1998. Italicized paragraphs, sentences, or phrases apply to all existing elevators while non-italicized apply to elevators installed after 1970 or after the date the regulation was adopted.
s 3085.22. Emergency Signal and/or Communication. [Rule 1502.12].
Each elevator shall be equipped with an alarm button or switch in the car operating station and an alarm device mounted in a location which shall be readily available to a person who is normally situated in the vicinity when the elevator is in use, or a means of voice communication with a receiving station which is always attended when the installation is in use. If the alarm device or means of voice communication is normally activated by utility power supply, it shall be backed up by a manual or battery operated device.
(Title 24, Part 7, Section 7-3085.22)
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
Group II regulations apply to existing elevators installed prior to October 25, 1998. Italicized paragraphs, sentences, or phrases apply to all existing elevators while non-italicized apply to elevators installed after 1970 or after the date the regulation was adopted.
s 3087. Application.
(a) This Article applies to the design, construction, installation, use, operation, maintenance and inspection of vertical or inclined reciprocating conveyors equipped with a platform or carrier and intended for moving inanimate objects and/or material only.
(b) The orders of this Article establish minimum requirements and take precedence over any other safety orders with which they are inconsistent. Machines, equipment and operations not specifically covered by these orders shall be governed by applicable General Industry Safety Orders.
Note: Corresponding paragraph references to ASME B20.1-1990 are shown in brackets. All references apply strictly to vertical or inclined reciprocating conveyors. All automated systems associated with conveyors are excluded from this Article.
(Title 24, Part 7, 7-3087)
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code; and Section 18943, Health and Safety Code.
s 3087.1. Definitions. [4]
Actuator. A manually operated device that initiates the action of controls or controllers.
Antirunaway (Safety Stop). A safety device to stop and hold the uncontrolled descent of a platform or carrier.
Backstop. A mechanical device to prevent reversal of a loaded vertical or inclined reciprocating conveyor under action of gravity when upward travel is interrupted.
Bracing. Structural members used to stabilize the supporting structure.
Brake. A friction device for slowing down conveyor components, bringing conveyor equipment to a controlled stop, holding traveling equipment at a selected landing, preventing reverse travel, and controlling overspeed due to the action of gravity.
Carrier or Platform. The moving part of a vertical or inclined reciprocating conveyor that supports the load.
Control. The system governing the starting, stopping, direction of motion, acceleration, speed, retardation identification, and function of the moving member in a predetermined manner.
Controller. An electromechanical device or assembly of devices for starting, stopping, accelerating, or decelerating a drive, or serving to govern in the predetermined manner the power delivered to the drive.
Conveyor Vertical or Inclined. A hydraulically or mechanically powered reciprocating device exclusively designed for moving freight (not to carry passengers or an operator) vertically or on an incline between two or more landings and/or between different levels on a single floor.
Counterweight. Weights in a structural frame used to balance or impose a load.
Drive. An assembly of the necessary structural, mechanical, and electrical parts that provides the motive power.
Emergency Stop. A stop resulting from a sudden and unexpected need, and not as part of the normal operation.
Emergency Stop Switch. A device that must be actuated in an emergency situation to stop a conveyor.
Enclosed. Describes the 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.
Guard. A covering or barricade to prevent entry into operating components such as gear, chain, or nip points.
Guarded. Shielded, fenced, enclosed, or otherwise protected by means of suitable enclosure, covers, casing shields, troughs, railings, or by nature of location as to reduce forseeable injury.
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 forseeable risk of accidental contact by persons or objects.
Nip point. A point at which moving or rotating machinery components may entrap persons or objects by nipping, pinching, or squeezing.
(Title 24, Part 7, Section 7-3087.1)
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code; and Section 18943, Health and Safety Code.
s 3087.2. Safety Considerations.
(a) Vertical or inclined reciprocating conveyor equipment shall be used to convey materials within the manufacturer's capacity and speed. [5.1]
(b) Means shall be provided to prevent injury to persons in the event of mechanical or electrical failure, where the effect of gravity will allow uncontrollable lowering of the load and where this load will cause a hazard to persons. [5.5 and 6.6.1]
(c) Riding vertical or inclined reciprocating conveyors shall be forbidden to all persons. [6.6.1]
(1) Warning signs to this effect shall be conspicuously and securely posted at each point of access to platform or carrier.
(2) Lettering shall be not less than 2 in. (51 mm) high on a contrasting background.
(Title 24, Part 7, Section 7-3087.2)
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code; and Section 18943, Health and Safety Code.
s 3087.3. Electrical Code.
All electrical installations and wiring shall conform to the California Code of Regulations. Title 24, Part 3, California Electrical Code.
(Title 24, Part 7, Section 7-3087.3)
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code; and Section 18943, Health and Safety Code.
s 3087.4. Controls.
(a) Controls shall be remotely installed so as to be inaccessible from the platform or carrier. [6.6.1 and 6.21.2(e)]
(b) Control stations shall be provided for each landing or located near the access point to the platform or carrier.
(c) The area around the starting and stopping devices shall be kept free of obstruction to permit ready access.
(1) Whenever a solid access door is used, audible or visible means shall be provided at each landing to indicate the platform or carrier arrival.
(2) The area around the control stations shall be kept free of obstruction to permit ready access. [5.12(b)]
(Title 24, Part 7, Section 7-3087.4)
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code; and Section 18943, Health and Safety Code.
s 3087.5. Operation.
(a) Only persons authorized by the owner shall be permitted to operate vertical or inclined reciprocating conveyors. [5.12]
(Title 24, Part 7, Section 7-3087.5)
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code; and Section 18943, Health and Safety Code.
s 3087.6. Guarding.
(a) Vertical or inclined reciprocating conveyors shall be guarded so as to prevent injury from inadvertent physical contact. The enclosure shall be not less than 8 ft (2.44 m) high and constructed of a metal mesh that will reject a ball 2 in. (51 mm) in diameter. [6.6.2]
(b) Vertical or inclined reciprocating conveyor enclosures shall be equipped with doors or gates or equivalent device at each manual loading and unloading station, interlocked so that they can be opened only when the platform or carrier has stopped at that level and the platform or carrier cannot be moved until they are closed. [6.21.2]
(c) Where the application requires that personnel walk onto the platform or carrier to load or unload, the platform or carrier shall be provided with standard railings with midrail kickplate and snap chains across operating ends or equivalent guarding. [6.21.2(d)]
(Titile 24, Part 7, Section 7-3087.6)
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code; and Section 18943, Health and Safety Code.
s 3087.7. Counterweights.
(a) Whenever counterweights are used to protect persons in the event of failure of the normal counterweight, support counterweights shall be confined in an enclosure to prevent the presence of persons beneath the counterweight, or the arrangement shall provide a means to restrain the failing counterweight. [5.8]
(Title 24, Part 7, Section 7-3087.7)
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code; and Section 18943, Health and Safety Code.
s 3087.8. Maintenance and Service.
(a) Maintenance and service shall be performed by qualified and trained personnel. [5.2(a)].
(b) Where the lack of maintenance or service would cause a hazardous condition, the user shall establish a maintenance program to ensure that conveyor components are maintained in a condition that does not constitute a hazard to personnel.
(c) Where a conveyor is stopped for maintenance or service, the starting devices, prime movers or power accessories shall be locked or tagged out in accordance with the procedures indicated in California Code of Regulations, Title 8, General Industry Safety Orders, Section 3314. [5.2(d)]
(Title 24, Part 7, Section 7-3087.8)
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code; and Section 18943, Health and Safety Code.
s 3088. Screw Type Elevators.
(a) Hoistways, Hoistway Enclosures and Related Construction. Hoistway, hoistway enclosures and related construction shall conform to the requirements of Article 7, except as the requirements for elevators with screw type hoisting means are modified by the following:
(1) Section 3010. (Hoistway Enclosures) Safe access to the hoist machines located on the car or in the pit shall be provided from the machine room at the lowest landing or pit level. The access door shall be electrically interlocked to prevent operation of the car when the door is not closed and locked.
(2) Section 3011. (Machine Room)
(A) Hoist motors, rotors, brakes and reduction gears may be located on the car top or in the pit provided.
1. Hoist machines located on the car top are permanently enclosed so they are inaccessible from the car top.
2. Access to drive machines mounted on the car or located in the pit is from the bottom level machine room only. An enclosure shall separate the drive unit on the car or in the pit from the machine room. Access doors shall comply with the requirements of Section 3088(a)(1).
(B) Screw fastenings, car lowering mechanisms and car overspeed governors may be housed in a removable enclosure secured against unauthorized access.
(C) Where the drive unit of a screw type elevator is located in the elevator pit, a permanent means shall be provided in the pit to support the car and platform during repairs or adjustments of the unit. Clear headroom under the platform shall be not less than 7 ' 0 " when the elevator is landed on the supports.
(3) Section 3017. (Top and bottom runbys and clearances)
(A) Elevator top and bottom clearances and runbys shall comply with Section 3017 for elevators with electric drive motors and Section 3054 for elevators with hydraulic drive motors.
(B) The bottom runby required by Section 3088(a)(3) may be eliminated where spring buffers complying with Section 3088(b)(1)(C) are provided and the speed of the elevator as it approaches the landing is not more than 10 feet per minute and the spring buffers are not compressed under normal operating conditions.
(4) Section 3018. Horizontal clearances shall comply with Section 3055.
(5) Section 3019. Protection of spaces below pits shall conform to the applicable portions of Section 3056.
(b) Machinery and Equipment. The machinery and equipment for elevators with screw type machines shall conform to the requirements of Article 8 except as sections are modified by the following:
(1) Section 3031. (Car buffers)
(A) Spring buffers used on elevators with screw type drive machines shall be so designed and installed that they will not be fully compressed when struck by the car with its rated load at governor tripping speed.
(B) Buffer design shall consider the energy of the rotating machinery and shall provide an average deceleration of not more than 1.0g for oil buffers and a maximum deceleration of 2.0g for spring buffers.
(C) Where recoil of the car upon impact with the spring buffers is detrimental to the screw, dampening shall be provided by means of a hydraulic or pneumatic device to eliminate any recoil.
(D) Calculations satisfactory to the Division shall be provided for each spring buffer design and rating.
(2) Section 3063. (Car frames and platforms) Car frames and platforms shall comply with Section 3063.
(3) Sections 3035 and 3036. Car safeties and overspeed governors. Screw elevators whose screws have not been shown to be capable of supporting 125% of the rated load and the car weight both in compression and tension shall be provided with car safety and overspeed devices of an approved type. Car safeties and governors shall comply with the requirements of Section 3035 for safeties and Section 3036 for governors.
(4) Section 3038. Screw machines shall comply with the requirements of Section 3068, Section 3104 and Section 3038 except subsections (a) and (b).
(A) In the design of screw machines, the load to be used in computing factors of safety shall be the maximum load imposed when lifting 125% of the rated load.
(B) For design purposes, screw machines shall include hoist and pump motors, gear boxes, sprockets, brakes, brake drums or discs, screws, screw supports and fastenings, rotors, lowering mechanisms, pumps, hoses, and other equipment necessary to raise and lower the elevator.
(C) The hoisting screws of screw machines shall have a factor of safety of not less than 15 based on combined tension and torsion stresses when lifting 125% of rated load and combined compression and torsion stresses when the screw is supporting 125% of rated load when used as a column.
(D) Where the rotor or nut travels with the elevator, the machine except for the screw, shall be inaccessible from the elevator car top and from outside the hoistway. Provisions shall be incorporated in the design of such a system for manually lowering the elevator, from the bottom machine room, to gain access to the machine. This manual control shall be failsafe and have a dead-man control. The lowering means shall be adjustable so the lowering speed is less than one-half rated speed with rated load on the car and shall stop and hold a load of 125% of rated load. This adjustment shall be set and sealed at the time of the initial inspection and at periods not exceeding 5 years.
(E) Machines in which the screw is stationary shall have the screw restrained at both the top and bottom ends to prevent the screw from rotating except when the car is being lowered as required by Section 3088(b)(3)(D).
(F) The screw shall be supported vertically and horizontally in such a way as to eliminate those forces or torques not taken into consideration in the design. Factors of safety required by Section 3104 shall be based on loads when lifting 125% of rated load.
(G) Drawings showing details of the entire screw machine and appropriate calculations by a California Registered Engineer shall be provided before the first machine of a kind and rating is installed and when requested by the Division. The calculations shall show the stress in all critical support members and major components of the machine. Where screws are spliced, the details of the splice shall be acceptable to the Division.
(H) The hoist machine brake shall be located so there is no coupling between the brake and screw or rotor.
(I) Belts and chains shall not be used except where multiple-link silent chain is enclosed in a transmission housing. When multiple-link silent chain is used, its wear shall be monitored with a chain switch to remove power from the drive machine motor and brake when chain wear or stretch becomes excessive.
(J) Hoist machine brakes shall be released electrically or hydraulically and applied by springs.
(K) A flexible hose supplying high pressure fluid to the hoisting rotor motor shall comply with requirements of Section 3068(a)(3)(B) except that where the failure of a hose will not result in lowering the car the hose shall have a bursting strength sufficient to withstand only 4 times the working pressure and shall be tested in the factory or in the field prior to installation of a pressure of at least 2 times the working pressure. Flexible hoses shall in addition to other criteria be designed to withstand the flexing to which they are subjected.
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
s 3089. Construction Requirements.
(a) Protection of Floor Openings. The protection of floor openings and the means of enclosing escalators, which may or may not be a part of the required egress system of the building, shall conform to governing building codes are not considered part of the Elevator Safety Orders.
(b) Angle of Inclination. The angle of inclination shall be not more than 30 degrees from the horizontal.
(c) Geometry.
(1) The width of the escalator shall be the width of the step tread (to the next whole inch).
(2) The handrail shall be a minimum of 4 in. (102 mm) horizontally and 1 in. (25 mm) vertically away from adjacent surfaces. The centerline of the handrail shall be not more than 10 in. (254 mm), measured horizontally, from the vertical plane through the edge of the exposed step.
(3) The following applies to escalators installed between April 16, 1970 and the effective date of subsections 3089(c), (1) and (2), unles they have been brought into compliance with subsections 3089(c)(1) and (2).
The width between balustrades shall be measured on the incline at a point 27 inches vertically above the nose line of the steps, and shall not be less than the width of the step. It shall not exceed the width of the step by more than 13 inches with a maximum of 61/2 inches on either side of the escalator. See Figure 3089B.
RELATIONSHIP OF ESCALATOR PARTS FIGURE 3089B
(d) Balustrades.
(1) A solid balustrade shall be provided on each side of the moving steps. The balustrade on the step side shall have no areas or moldings depressed or raised more than 1/4 inch from the parent surface, except when skirt deflection devices, such as brushes, are used per Section 3089(d)(6). Such areas or moldings shall have all boundary surfaces beveled unless parallel to the direction of travel.
(2) Safety glass or plastic panels, if used in balustrades, shall conform to the requirements of ANSI Z97.1, except that there shall be no requirement for the panels to be transparent.
Exception: Plastic material bonded to a basic supporting panel.
(3) The width between the balustrades in the direction of travel shall not be changed abruptly nor by more than 8 percent of the greatest width. In changing from the greater to the smaller width, the maximum allowable angle of change in the balustrading shall be 15 degrees from the line of travel.
(4) A solid guard shall be provided in the intersecting angle of the outside balustrade (deck board) and the ceiling or soffitt.
Exception: Where the intersection of the outside balustrade (deck board) and the ceiling or soffitt is more than 24 inches from the center line of the handrail.
(A) The vertical face of the guard shall project at least 14 inches horizontally from the apex of the angle. On existing installations the vertical face of the guard shall be not less than 6 inches.
(B) The exposed edge of the guard shall be rounded to eliminate shear hazard.Guards may be glass or plastic, provided they meet the requirements of Section 3089(d)(2).
(5) Existing escalators shall comply with the following:
(A) Skirt deflection devices to protect against the accidental entrapment of body parts, clothing, shoes, etc., shall be installed; or
(B) Clearances between the skirt and the step shall comply with ASME A17.1- 1996, Rule 802.3e, hereby incorporated by reference; and the skirt panel shall comply with ASME A17.1-1996, Rule 802.3f, hereby incorporated by reference. (continued)