CCLME.ORG - DIVISION 1. DEPARTMENT OF INDUSTRIAL RELATIONS CHAPTERS 1 through 6

(continued)
2. Manually operated, even though self-closing, doors of the horizontally sliding type or vertically sliding types except at landings where car position indicators are provided.
(B) Vision panels are required in one section only of multiple section doors, but may be provided in all sections. Vision panels may be provided for any type of hoistway door irrespective of the type of operation of the elevator.
(C) Hoistway doors installed before June 5, 1947, need not be altered to provide vision panels, but a clear section conforming to Section 3020(b)(18)(D)(1), Section 3020(b)(18)(D)(5) and Section 3020(b)(18)(D)(6) shall be provided in cases where existing manually operated grillwork or glass paneled doors are altered by covering or painting.
(D) Vision panels shall conform to the following:
1. The area of any single vision panel shall be not less than 25 in 2 (161cm 2), and the total area of one or more vision panels in any hoistway door shall be not more than 100 in 2 (648cm 2).
2. Each clear panel opening shall reject a ball 6 in. (152mm) in diameter.
EXCEPTIONS to subsection 3020(b)(18)(D)2:
Elevators installed before June 5, 1947.
3. Muntins used between panel sections shall be of substantial construction.
4. Vision panel openings shall be glazed with clear wired glass not less than 1/4 in. (6.3mm) thick.
EXCEPTION to subsection 3020(b)(18)(D)4:

Existing vision panels glazed with safety glass.
5. The center of the panel shall be located not less than 54 in. (1.37m) nor more than 66 in. (1.68m) above the landing; except that for vertically sliding, biparting doors, it shall be located to conform with the dimensions specified herein insofar as the door design will permit.
6. Vision panels in horizontally swinging doors shall be located for convenient vision when opening the door from the car side.
7. Glass panels in power-operated doors shall be substantially flush with the landing side surface of the door.
(19) Hoistway Door Counterweight Guides and Enclosure. Hoistway door counterweights, where used, shall run in guides or shall be boxed in. The bottom of the guides or boxes shall be so constructed as to retain the counterweight if the counterweight suspension means breaks.
(c) Hoistway Gates.
(1) Use of Hoistway Gates Limited by Building Codes. Freight elevator hoistway entrances may be equipped with gates instead of doors where permissible under governing building codes.
(2) Types of Hoistway Gates. Hoistway gates shall be one of the following types.
(A) Vertically sliding, single or multisection, excluding biparting.
(B) Horizontally sliding, single or multisection.
(C) Where structural conditions preclude the use of vertically sliding or horizontally sliding gates, horizontally swinging or horizontally sliding collapsible gates may be used.
(3) Size of Hoistway Gates. Gates shall fill the entire width of the opening and shall conform to the following:
(A) On new installations gates shall be not less than 6 ft (1.83m) high.
(B) Existing gates shall be not less than 66 in. (1.68m) high; or,

(C) Gates at the top terminal landings of existing elevators, where structural conditions make 66-in. (1.68m) -high gates impractical, may be not less than 41 in. (1.04m) nor more than 45 in. (1.14m) high.
(4) Construction of Hoistway Gates.
(A) Hoistway gates shall be constructed and maintained as to withstand a constant force of 100 lbf (445 N) applied at right angles to and at approximately the center of the gate without deflecting the gate past the line of the threshold or a constant force of 250 lbf (1112 N) similarly applied without forcing the gate from its guides or breaking the gate.
(B) Hoistway gates shall be constructed with slats having spaces between the slats not exceeding 2 in. (51mm), or of openwork steel which will reject a ball 2 in. (51mm) in diameter. A 1-in. (25mm) space is permissible between the bottom of the gate and the floor.
EXCEPTION to subsection 3020(c)(4)(B):
Existing shipper rope controlled elevators operated from the landings may have access openings in the gates 5 in. (127mm) wide and 36 in. (914mm) high, located with the bottom of the opening approximately 30 in. (762mm) from the floor. Where a two-section gate is used, the access slot need not be over 26 in. (661mm) high.
(C) Horizontally sliding, collapsible gates shall be constructed so as to use as few collapsible members as possible, but no gate opening shall be over 3 in. (76mm) in width. Alternate vertical members shall act as guiding members at both top and bottom.
(5) Location of Hoistway Gates.
(A) Collapsible gates shall be installed so that the distance from the inside of the gate and the line of the edge of the car platform shall be not less than 4 in. (102mm) nor more than 5 in. (127mm).
(B) 41-in. (1.04m) to 45-in. (1.14m) high gates at the top landing of elevators having a car top or a meat track shall be maintained so that the distance from the inside of the gate and the hoistway edge of the landing threshold shall be not less than 4 in. (102mm) nor more than 6 in. (152mm).
(C) The distance from the hoistway side of the gate to the hoistway edge of the landing threshold shall be not more than 4 inches, nor less than 2 in. (51mm), except as specified in Section 3020(c)(5)(B).
(D) The space between the bottom of the gate and the floor shall not exceed 1 in. (25mm).
EXCEPTION to subsection 3020(c)(5)(D):
Existing gates installed on elevators before June 5, 1947, may have a space not to exceed 4 in. (102mm).
(6) Operation of Hoistway Gates. Hoistway gates shall be opened and closed manually or by power from a source in no way derived from the motion of the elevator car.
(7) Requirements for Gates Less Than 66 In. (1.68m) High. On existing installations, where gates less than 66 in. (1.68m) high have been installed, the car top, where provided, shall be hinged back at least 18 in. (457mm) from the landing threshold, and no rigid horizontal or projecting member between the vertical sides of the car enclosure shall extend closer than 12 in. (305mm) from the landing thresholds.

EXCEPTIONS to subsection 3020(c)(7):
1. Elevators equipped with car doors or gates.
2. Existing meat tracks but not meat track supports.
(8) Hoistway Gate Counterweights and Suspension Means.
(A) Gate counterweights shall run in guides or in weight boxes and be arranged to retain the weight in the box or in the guides in case of the breaking of the counterweight suspension means.
(B) Vertically sliding hoistway gates shall be so counterweighted or counterbalanced that they will not open or close by gravity.
(Title 24, Part 7, Section 7-3020.)
SCOPE
This Article applies to electric cabled elevators of a conventional type and to other types of elevators or lifts only as referenced in their respective Articles.

Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.

s 3021. Hoistway Door and Gate-Locking Devices.
(a) Required on Passenger Elevator Hoistway Doors. All passenger elevator hoistway doors shall be equipped with approved hoistway-unit-system hoistway door interlocks.
Exceptions to Subsection 3021(a):
Exceptions:
1. Existing manually operated hoistway doors of elevators having a rated speed of not more than 150 fpm (0.76 m/s) and a rise of not more than 20 ft (6.10 m) which are provided with interlocks and zone switches as described for doors in section 3021(d)(1)(D).
2. Manually operated doors at the lowest landing, or at the ground floor of elevators with only one floor below the ground floor, provided that no other entrances are in line on floors above or below and the doors are equipped with interlocks and zone switches as described for doors in section 3021(d)(1)(D).
3. Existing basement doors provided with interlocks and zone switches as described for doors in section 3021(d)(1)(D).
(b) Required on Freight Elevator Hoistway Doors. All freight elevator hoistway doors shall be equipped with approved hoistway-unit-system hoistway door interlocks.
Exceptions to Subsection 3021(b):
1. Manually operated hoistway doors for freight elevators having a rated speed of not more than 150 fpm (0.76 m/s) and a rise of not more than 20 ft (6.10 m) which are provided with interlocks and zone switches as described for doors in section 3021(d)(1)(D).
2. Manually operated doors at the lowest landing, or at the ground floor of elevators with only one floor below the ground floor, provided that no other entrances are in line above or below and the doors are equipped with interlocks and zone switches as described for doors in section 3021(d)(1)(D).
3. Existing installations, completed before June 5, 1947, of interlocks or contact locks which approximately fulfill the functions required for approved interlocks or contact locks.
(c) Required on Freight Elevator Hoistway Gates.
(1) All existing freight elevator hoistway gates shall be equipped with either approved hoistway-unit-system interlocks or with approved combination mechanical locks and electric contacts (contact locks).
(2) All new freight elevator hoistway gates shall be equipped with approved hoistway-unit-system interlocks.
Exceptions to Subsection 3021(c)(2):
1. Manually operated hoistway gates for freight elevators having a rated speed of not more than 150 fpm (0.76 m/s) and a rise of not more than 20 ft (6.10 m) which are provided with interlocks and zone switches as described for doors in section 3021(d)(1)(D).
2. Manually operated gates at the lowest landing, or at the ground floor of elevators with only one floor below the ground floor, provided that no other entrances are in line above or below and the gates are equipped with interlocks and zone switches as described for doors in section 3021(d)(1)(D).
3. Existing installations, completed before June 5, 1947 of interlocks or contact locks which approximately fulfill the functions required for approved interlocks or contact locks.
(d) Hoistway Door Interlocks and Operating Cams.
(1) Operation of the driving machine when a hoistway door is unlocked is permissible only under the following conditions:
(A) By a car-leveling or truck-zoning device.
(B) By a combination hoistway access switch and operating device on constant-pressure or car-switch type elevators.
(C) When a hoistway access switch is operated.
(D) Those manually operated doors specified in Exceptions No. 1 and No. 2, section 3021(a), and in Exceptions No. 1 and No. 2, section 3021(b), may be equipped with interlocks that are unlocked by a stationary cam on the car, provided the circuits are so arranged that the power will be cut off the machine and the brake applied, if the door is not closed or if the car travels more than one foot away from the floor before the door is locked.
(E) When the elevator is equipped with an advance start or pulse start feature that allows the building up of the starting motor torque while the doors are in the last phase of the closing operation and may result in the car moving a short distance away from the floor if the closing of the doors is interrupted. This feature will be allowed only after written approval has been granted by the division.
(F) Existing elevators equipped with emergency release buttons permitted by the exception to section 3021(i).
(G) Elevators which can be started from the car only may be provided with an auxiliary lock at the lowest landing used in connection with the unlocking means for the lowest landing door so arranged that the car can leave the landing with the auxiliary lock in the unlocked position provided the circuits are so arranged that the power will be cut off and the brake applied should the car travel more than one foot away from the landing before the auxiliary lock locks.
(2) Interlocks shall conform to the following requirements:
(A) Interlock contacts shall be positively opened by the locking member or by a member connected to and mechanically operated by the locking member, and the contacts shall be maintained in the open position by the action of gravity or by means of the opening member.
(B) The interlock shall hold the door in the locked position by means of gravity or by a restrained compression spring on a rod or in a tube, or by both, or by means of the opening member.
(C) The interlock shall lock the door in the closed position before the driving machine can be operated by the normal operating device.
Devices which permit operation of the driving machine by the normal operating device before the door is closed, or when the door is closed but before it is locked, are not interlocks and are not permitted where interlocks are required by these regulations.
Exception to Subsection 3021(d)(2)(C):
As provided in section 3021(d)(1).
(D) Elevator hoistway doors or gates shall not be arranged to be unlocked from outside the hoistway except where the unlocking means is of a type which cannot function unless the elevator car is at or within 30 in. (762 mm) of the landing.
Exception to Subsection 3021(d)(2)(D):
Doors or gates at the lowest landing that are equipped with auxiliary locks zoned so the power will be cut off the machine and the brake applied if the door is not closed or if the car travels more than one ft (305 mm) away from the floor, before the door is locked.
(E) Interlocks used with multi-section doors shall conform to the following requirements:
1. They shall lock all sections of the door, but may be applied to only one section of the door, provided the device to interconnect the door sections is so arranged that the locking of one section insures that all sections are closed and cannot be opened.
Exceptions to Subsection 3021(d)(2)(E):
1. Existing swing sections with auxiliary contacts on the section held closed by an overlapping astragal on the door equippedwith an interlock.
2. Vertically sliding bi-parting doors installed before June 5, 1947.
2. Where used with vertically sliding biparting counterbalanced doors, they shall be so arranged that the interlock contacts are mechanically held in the open position by the door or devices attached thereto unless the door is in the closed position.
3. Where used with center-opening horizontally swinging doors, both door sections shall be equipped with interlocks.
4. Where a door-closer, used with a combination sliding and swinging door, is arranged to be disconnected to allow the sliding panel to swing, it shall be so designed and installed that it shall not make the interlock contact when disconnected and released.
(F) Interlock systems employing a single master switch for more than one door are prohibited.
(3) Retiring cams used to actuate an interlock shall exert a force at least double the average force required to operate the interlock and shall have a movement at least 1/2 in. (13 mm) more than the average movement required to operate the interlock. An interlock retiring cam shall be permanently marked by the manufacturer with:
(A) Its rated horizontal force.
(B) Its rated horizontal movement.
(4) The vertical face of any retiring cam, used for operating an interlock shall not exceed 18 in. (457 mm) in length unless the elevator is arranged to level automatically and is equipped with power-opened landing doors.
Exceptions to Subsection 3021(d)(4):
1. Elevators equipped with a truck-loading device.
2. Cams installed on elevators before June 5, 1947.
(5) Interlocks shall be so located that they are not accessible from the landing side when the hoistway doors are closed.

(e) Hoistway Gate Combination Mechanical Locks and Electric Contacts (Contact Locks).
(1) Hoistway gate combination mechanical locks and electric contacts are permitted for hoistway gates of existing freight elevators only.
(2) Operation of the driving machine when a hoistway gate is not in the closed position is not permissible.
Exception to Subsection 3021(e)(2):
By a car-leveling or truck-zoning device.
(3) Contact locks shall conform to the following requirements.
(A) Contact locks, except existing locks installed before 1947, shall be so designed and installed that the locking member and the electric contact are in a single unit. They shall be so installed and adjusted that the electric contact cannot close until the gate is in the closed position and so that the locking member is in a position to lock the gate when or before the contact closes.
(B) The electric contact shall be positively opened by the locking bar of the mechanical lock, or by a lever or other device attached to and operated by the gate, and the contact shall be maintained in the open position by means other than depending solely on the operation of a spring or springs.
(C) The function of a contact lock to hold a gate in the locked position shall not depend solely on a spring or springs, except that a coil (helical) spring in compression may be used if retained on a rod or in a tube to prevent separation in case of failure.
(D) Contact locks used with multisection gates shall conform to the following requirement.
1. They shall lock all sections of the gate, but may be applied to only one section provided the device used to interconnect the gate sections is so arranged that the locking of one section insures that all sections are closed and cannot be opened.
(4) The vertical face of any cam used for operating a contact lock shall not exceed 18 in. (457 mm) in length.
Exception to Subsection 3021(e)(4):
Elevators equipped with a truck-loading device.
(f) Tests and Approvals.
(1) Each type and make of hoistway door interlock and hoistway gate combination lock and electric contact (contact lock) shall be approved by the Division of Occupational Safety and Health. See Design section 3110.
(2) Approved devices shall be marked for identification. The marking shall be permanent and shall include the following:
(A) Manufacturer's name or trademark.
(B) Type of style letter or number.
(C) Rated Voltage.

(D) Rated test force and test movement on installations requiring a retiring cam.
(g) Closed Position of Hoistway Doors. Hoistway doors shall be considered to be in the closed position under the following conditions:
(1) For horizontally sliding or swinging doors, when the leading edge of the door is within 3/8 in. (9.5 mm) of the nearest jamb or when the panels of horizontally sliding center-opening doors are within 3/8 in. (9.5 mm) of contact with each other.
Exception to Subsection 3021(g)(1):
The doors shall be considered to be in the closed position at 4 in. (102 mm) from the jamb on existing elevators provided:
1. The elevator can be started from the car only.
2. The doors are provided with closers to fully close and lock the door after the car has started.
3. The doors cannot be reopened from the landing side within the 4 in. (102 mm) zone.
4. If such elevators can be converted to collective operation for night service, the closed position shall be not more than 2 in. (51 mm) when on the automatic operation.
(2) For vertically sliding biparting counterbalanced doors, when the closing doors are not more than 3/4 in. (19 mm) from their stopped position. See section 3020(b)(6)(C).
Exception to Subsection 3021(g)(2):
This distance may be increased to 1 1/4 in. (31 mm) when new safety astragals are installed to replace existing solid astragals.
(h) Closed Position of Hoistway Gates. Hoistway gates shall be considered to be in the closed position under the following conditions.
(1) For vertically sliding, counterbalanced gates, when the space between the bottom of the gate and the sill is not more than 2 in. (51 mm).

(2) For horizontally sliding or swinging gates, when the space between the edge of the gate and the nearest face of the strike jamb does not exceed 2 in. (51 mm).
(i) Interlock By-Pass Switch (Emergency Release). No emergency release switch shall be provided in or on any elevator to render the hoistway door interlocking circuit or the car door or gate contact circuit inoperative.
Exception to Subsection 3021(i):
Existing elevators which can be started from the car only that are provided with a constant pressure key switch or a constant pressure button requiring a pressure of at least 10 lbf (44.5 N) to operate. This device shall be located above the normal operating device not less than 6 ft (1.83 m) above the car floor.
(j) Elevator Parking Device. An elevator parking device shall be provided on car switch elevators at one landing, and may be provided at other landings, except on elevators having hoistway doors which are automatically unlocked when the car is within the landing zone.

Parking devices shall conform to the following requirements:
(1) They shall be mechanically or electrically operated.
(2) They shall be so designed and installed that friction or the breaking of any spring used in the device will not permit opening or unlocking a door when the car is outside the landing zone of that floor.
(3) Springs, where used, shall be of the restrained compression type which will prevent separation of parts in case the spring breaks.
(k) Hoistway Access Switches.
(1) Elevators equipped with power-operated hoistway doors or elevators equipped with manually operated vertical biparting doors shall be provided with access switches at one upper landing to permit access to the top of the car, and at the lowest landing to permit access to the pit if this landing is the normal point of access to the pit.
Exception to Subsection 3021(k)(1):

Access to the top of elevators with a travel 15 ft (4.57 m) or less.
(A) Observation elevators with manually operated hoistway doors shall be provided with access switches at one upper landing to permit access to the top of the car.
(2) Hoistway access switches shall conform to the following:
(A) The switch shall be installed only at access landings.
(B) The switch shall be installed in the hoistway entrance frame or within 12 in. (305 mm) of the entrance frame of the elevator with which it is identified, and not less than 3 ft (914 mm) nor more than 78 in. (1.98 m) above floor level.
(C) The switch shall be of the continuous-pressure, spring return type, and shall be operated by a cylinder type lock having not less than a 5-pin or 5- disc combination with the key removable only when the switch is in the off position. The lock shall not be operable by any key which will operate locks or devices used for other purposes in the building except where locks are provided in the car top emergency exit covers the key may also unlock the exit cover. The key shall be available to and used only by elevator inspectors, maintenance men, and repairmen.
(3) The operation of the switch at either access landing shall permit, and may initiate and maintain, movement of the car with the hoistway door at this landing unlocked or not in the closed position; and with the car door or gate not in the closed position, subject to the following:
(A) The operation of the switch shall not render ineffective the hoistway door interlock at any other landing.
(B) The car cannot be operated at a speed greater than 150 fpm (0.76 m/s).
(C) For automatic and continuous pressure operation elevators, provided:
1. Landing operating devices of continuous pressure operation elevators, and car and landing operating devices of automatic operation elevators, shall first be made inoperative by means other than the access switch. This means shall be located in the car and shall be key operated or located behind a locked cover.
2. Power operation of the hoistway door and the car door or gate is inoperative.
(D) Automatic operation by a car-leveling device is inoperative.
(E) The top-of-car operating device is inoperative.
(F) The movement of the car initiated and maintained by the top access switch shall be limited in the down direction to a travel not greater than the height of the car crosshead above the car platform, and limited in the up direction above the access landing to the distance the car apron extends below the car platform.
(4) Where electrically operated switches, relays, or contractors are used to render inoperative the hoistway door interlock or the car door or gate contact, the control circuits shall be arranged to conform to the requirements of section 3040(f)(3); and, in addition, to render the normal car and hall operation ineffective if any such switch, relay, or contractor fails to function in its intended manner.
( l) Passenger elevators installed after January 1, 1989 shall have the hoistway and/or car doors arranged as follows:
(1) When a car is outside the unlocking zone, the hoistway doors or car doors shall be so arranged that the hoistway doors or car doors cannot be opened more than 4 in. (102 mm) from inside the car.
(2) When the car doors are so arranged that they cannot be opened when the car is outside the unlocking zone, the car doors shall be openable from outside the car without the use of special tools.
(3) The unlocking zone shall extend from the landing floor level to a point no greater than 18 in. (457 mm) above or below the landing floor level.
(4) The arrangement required by subsection 3021( l)(1) shall not restrict the opening to the extent that the floor numbers required by subsection 3041(c)(5) cannot be located and observed.
(5) The arrangement required by subsection 3021( l)(2) shall not constitute a violation of subsection 3022(c)(5) if the doors can be opened sufficiently to determine the numbers required by subsection 3041(c)(5).

Title 24, part 7, section 7-3021
SCOPE
This Article applies to electric cabled elevators of a conventional type and to other types of elevators or lifts only as referenced in their respective Articles.

Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code; and Section 18943, Health and Safety Code.

s 3022. Power Operation of Doors and Gates.
(a) Types of doors and gates permitted.

(1) Where both a hoistway door and a car door or gate are opened and/or closed by power, the hoistway door and the car door or gate shall:
(A) Both be of the horizontally sliding type or
(B) Both be of the vertically sliding type.
(b) Power Opening.
(1) Power opening of a car door or gate shall be subjected to the following:
(A) Power opening shall occur only when the car is at rest at the landing or is leveling except that on elevators with static control, power shall not be applied to open car doors until the car is within 12 in. (305 mm) of the landing.
(B) Collapsible-type car gates shall not be power opened to a distance exceeding 1/3 the clear gate opening, and in no case more than 10 inches.
(C) Existing power-operated, collapsible car gates shall be provided with a means to prevent shear.

(2) Power opening of a hoistway door shall conform to the following:
(A) Power opening shall occur only at that landing where the car is stopping, is leveling, or is at rest; and shall start only when the car is within the landing zone or is within 30 in. (762 mm) above or 30 in. (762 mm) below the landing where an automatic car leveling device is provided, except that on static control elevators, opening shall not begin until the car is within 12 in. (305 mm) of the landing.
(B) Power opening may be initiated automatically through control circuits provided that when stopping under normal operating conditions, the car shall be at rest or substantially level with the landings before the hoistway door is in the fully open position.
(C) Sequence opening of a vertically sliding, biparting hoistway door and adjacent car gate shall be provided where required by section 3022(e)(1).
(c) Power Closing.
(1) Where a car door or gate is closed by power, or is of the automatically released, self-closing type and faces a manually operated or self-closing hoistway door, the closing of the car door or gate shall not be initiated unless the hoistway door is in the closed position.
Exception to Subsection 3022(c)(1):
Where a car door or gate is closed by power through continuous pressure of a door closing switch, or of the car operating device, and where the release of the closing switch or operating device will cause the car door or gate to stop or to stop and reopen.
(A) The closing mechanism shall be so designed that the force necessary to prevent closing of a horizontally sliding door or gate from the rest shall be not more than 30 lbf (133 N).
(2) Horizontally sliding or vertically sliding biparting hoistway doors may be closed by continuous pressure means subject to the following:
(A) The release of the closing means shall cause the hoistway door and a power-operated or power-closed car door or gate to stop or to stop and reopen.

(B) The operation of the closing means at any landing shall not close the hoistway door at any other landing nor the car door or gate when the elevator is at any other landing.
(C) For elevators having more than one hoistway opening at any landing level, a separate closing means shall be provided in the car for each car door or gate and its adjacent hoistway door. Any closing means at a landing shall close only that hoistway door and the car door or gate at the side where such means is located.
Exception to Subsection 3022(c)(2)(C):
A separate closing means need not be furnished in the car for a horizontally sliding hoistway door and adjacent car door or gate which conform to the requirements of section 3022(c).
(D) Sequence closing of a vertically sliding, biparting hoistway door and adjacent car gate shall be provided where required by section 3022(f).
(E) Vertically sliding biparting hoistway doors shall be used only in conjunction with a vertically sliding car gate that is closed by similar means.

(3) Power closing by momentary pressure or by automatic means of horizontally sliding hoistway doors or car doors or gates shall be permitted only for automatic or constant-pressure operation elevators. The closing of the doors or gates shall be subject to the following:
(A) It shall conform to the requirements of section 3022(d).
(B) A momentary pressure switch shall be provided in the car, the operation of which shall cause the doors to stop or to stop and reopen.
(4) Power closing of vertically sliding, biparting hoistway doors by momentary pressure or by automatic means shall be subject to the following:
(A) Only in conjunction with a vertically sliding car door or gate that is closed by a similar means.
(B) A warning bell or other audible signal shall be provided on the car which will start to sound at least 5 seconds before the car door or gate starts to close and shall continue to sound until the hoistway door is substantially closed.

Exception to Subsection 3022(b)(4)(B):
The 5-second time interval may be omitted when the doors are closed by a switch in the car.
(C) Sequence closing of the hoistway door and the adjacent car gate shall be provided and shall conform to the requirements of section 3022(f).
(D) The car gate shall be equipped with a reopening device conforming with the requirements of section 3022(e).
(E) A momentary-pressure type switch shall be provided in the car and at each landing which, when operated, shall cause the hoistway doors and the car gate to stop or to stop and reopen.
(F) The average closing speed shall not exceed 1 fps (0.305 m/s) for each panel of a biparting, counterbalanced hoistway door and shall not exceed 2 fps (0.62 m/s) for a vertically sliding, counterweighted car gate.
(5) Car doors shall be arranged to be opened manually from inside the car in the event the power supply to the elevator is disconnected.
(d) Kinetic Energy and Force Limitations for Power Door Operators Used With Horizontally Sliding Hoistway Doors and Horizontally Sliding Car Doors or Gates. Where a power-operated, horizontally sliding hoistway door is closed by momentary pressure or by automatic means or is closed simultaneously with another door from one continuous pressure means, the closing mechanism shall be designed and installed to conform to the following requirements:
(1) The kinetic energy of the hoistway door and all parts rigidly connected thereto, computed for the average closing speed, shall not exceed 7 ft-lbs (9.49 J) where a reopening device for the power-operated car door or gate conforming to the requirements of section 3022(e) is used, and shall not exceed 2 1/2 ft-lbf (3.39 J) where such door reopening device is not used.
Where the hoistway door and the car door or gate are closed in such a manner that stopping either one manually will stop both, the sum of the hoistway and the car door weights, as well as all parts connected rigidly thereto, shall be used to compute the kinetic energy.
The average closing speed shall be determined by timing the closing door as follows:
(A) With single-slide and two-speed doors, determine the time required for the leading edge of the door to travel from a point 2 in. (51 mm) away from the open jamb to a point 2 (51 mm) away from the opposite jamb.
(B) With center-opening or two-speed center-opening doors, determine the time required for the leading edge of the door to travel from a point 1 in. (25 mm) away from the open jamb to a point 1 in. (25 mm) from the center meeting point of the doors.
(2) The force necessary to prevent closing of the hoistway door (or the car door or gate if self-closing or power-operated) from rest shall be not more than 30 lbf (133 N). This force shall be measured on the leading edge of the door with the door at any point between one-third and two-thirds of its travel.
(3) The weight of the doors and all parts rigidly connected thereto shall be submitted to the Division of Occupational Safety and Health.
(e) Reopening Device for Power Operated Car Doors or Gates. Where required by section 3022(c)(4)(D) or section 3022(d)(1), a power-operated car door or gate shall be provided with a reopening device which will function to stop and reopen a car door or gate and the adjacent hoistway door in the event that the car door or gate is obstructed while closing.
For center-opening doors, the reopening device shall be so designed and installed that the obstruction of either door panel, when closing, will cause the reopening device to function.
(f) Sequence Operation for Power Operated Hoistway Doors With Car Doors or Gates.
(1) Sequence operation shall be provided under the following conditions:
(A) Sequence opening and closing shall be provided for power-operated vertically sliding biparting counterbalanced doors where used on passenger elevators in conjunction with a power-operated vertically sliding car gate.
(B) Sequence closing shall be provided for power-operated, vertically sliding biparting hoistway doors and vertically sliding car gates which are closed by momentary pressure or by a timing device.

(2) The sequence operation of a vertically sliding, biparting hoistway door and adjacent power-operated vertically sliding car gate shall conform to the following:
(A) In opening, the hoistway door shall be opened at least 2/3 of its travel before the car gate can start to open.
(B) In closing, the car gate shall be closed at least 2/3 of its travel before the hoistway door can start to close.
Title 24, part 7, section 7-3022.
SCOPE
This Article applies to electric cabled elevators of a conventional type and to other types of elevators or lifts only as referenced in their respective Articles.

Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code; and Section 18943, Health and Safety Code.

s 3030. Car and Counterweight Guide Rails, Rail Supports, and Fastenings.
(a) Guide Rails Required. All elevators and their counterweights shall be provided with guide rails.
Exception: Existing counterweights running in boxes.
(b) Material. Guide rails, guide rail brackets, rail clips, fishplates, and their fastenings shall be of steel or other metals conforming to the requirements of this section.
Exceptions:
1. Where steel may present an accident hazard, as in chemical or explosive plants, guide rails may be of selected wood or other suitable nonmetallic materials provided the rated speed of the car does not exceed 150 feet per minute.
2. Existing elevators originally installed with wood guide rails.
(c) Requirements for Steel. Steel where used, shall conform to the requirements of Design Section 3109(b).
(d) Requirements for Metals Other Than Steel. Metals, other than steel, may be used provided the factor of safety is not less than, and the deflections not more than, the values specified in Design Section 3109, and provided that cast iron is not used.
(e) Rail Section.

(1) Guide rails shall be T-section, conforming to the nominal weights and dimensions shown in Figure No. 3030 E1 and Table 3030 E1.
Exception:
Other approved shapes may be used subject to the requirements of Design Section 3109(c).
(2) The cross section of existing or replacement wood guides shall be not less than those given in Table 3030 E2. The guides shall be of clear grain maple or its equivalent.
TABLE 3030 E1 -STEEL GUIDE RAILS

Nominal Wt.
Per Foot ................... Nominal Dimension in Inches
in Lbs......... A ....... B ...... C D E
8.............. 2 7/16 .. 3 1/2 .. 5/8 1 1/4 5/16
11............. 3 1/2 ... 4 1/2 .. 5/8 1 1/2 5/16
12............. 3 1/2 ... 5 ...... 5/8 1 3/4 5/16
15............. 3 1/2 ... 5 ...... 5/8 1 31/32 1/2
18 1/2......... 4 1/4 ... 5 1/2 .. 3/4 1 31/32 1/2
22 1/2......... 4 3/64 .. 5 1/2 .. 1 1/8 2 9/16
30............. 5 ...... 5 1/2 .. 1 1/4 2 1/4 11/16

TABLE 3030 E2 -WOOD GUIDE RAILS

Maximum Total ... Cross Section of
Weight Per Pair .. Each Guide Rail
of Guide Rails ... in Inches
3,000............. 1 1/2 x 1 3/4
5,000............. 1 7/8 x 2 1/4

8,000............. 2 1/4 x 2 1/4
10,000............ 2 5/8 x 2 3/4
14,000............ 4 x 5 1/4
16,000............ 5 x 7

(f) Maximum Load on Rails in Relation to the Bracket Spacing. The maximum load on rails in relation to the bracket spacing shall be the smallest of the two values established by Sections 3030(f) (1), 3030(f) (2), and 3030(f) (3).
(1) Where a single car or counterweight safety is used, the maximum suspended weight of the car and its rated load, or the maximum suspended weight of the counterweight, including the weight of any compensating ropes or chains and of any traveling cables suspended therefrom, per pair of guide rails, shall not exceed the maximum specified in Figure No. 3030 F1 for the size of rail and the bracket spacing used.
Exception: The bracket spacing may exceed the values specified in Figure 3030 F1 for a counterweight with a safety device or for a given weight of car plus its rated load per pair of guide rails, provided:

1. The guide rail is reinforced; and
2. The moment of inertia of a single reinforced rail, about an axis (I-I) parallel to the base of the rail, shall be not less than that required by Figure 3109 D for the total weight per pair of guide rails at the bracket spacing used.
(2) Where the car or counterweight is provided with two safety devices (duplex safety), the loads specified in Figure No. 3030 F1 may be increased by the factors specified in Table No. 3030 F2.
(3) The weight of the counterweight and the bracket spacing for each rail size shall not exceed the values determined from Figures 3030 F3 A, 3030 F3 B, and 3030 F3 C or for a counterweight with a safety the values determined from Figure 3030 F1, whichever is most restrictive. In no case shall bracket spacing exceed 16 feet.
FIGURE 3030 F1

Maximum Weight of Car with Rated Load or of Counterweight with Safety for a
Pair of Guide Rails as specified in Section 3030(f)(1).

FIGURE 3030 F2

Load Mulitiplying Factor for Duplex SafetiesIMGID
0068.I4eef5d68732a11da9ac0740042049591

(4) Where the spacing between counterweight rail brackets tied to the building exceeds 10 feet, intermediate tie brackets, not required to be tied to the structure, shall be added so the distance between adjacent brackets is not more than 7 feet.
Exceptions:
(1) Existing elevators in which the counterweight rail guiding system complies with Section 200 of ANSI A17.1-1971.
(2) A period of seven years from October 6, 1975 will be allowed for counterweight rails existing on this date to comply with the requirements of Section 3030(f)(4).
(5) The maximum bracket height and minimum section modulus of the supporting leg of counterweight rail support brackets shall be determined from Figure 3030(F)(4) using the weight of the counterweight.
(A) Where gussets or diagonal struts are used, the bracket height shall be considered as the unsupported length of the bracket leg measured from the centerline of the rail.

(B) Where tie rods are used to tie the legs of the brackets together to increase the effective section modulus, the tie rods that are located across the outer ends of the brackets shall be guarded unless located more than 7 inches from the edge of the car top.
(6) The maximum bracket height and minimum section modulus of intermediate tie brackets for counterweight rails shall be determined from figure 3030(F)(4) using 1/3 the weight of the counterweight.
Exception: The counterweight guide systems of elevators need not comply with Section 3030(f)(3), Section 3030(f)(4), Section 3030(f)(5) and Section 3030(f)(6) where proper certification to the Division of Industrial Safety has been made by an engineer qualified under the Civil and Professional Engineers Act that the guide system has been designed and built to withstand the seismic forces for which the building was designed.
(g) Stresses and Deflections. The stresses and deflections in a guide rail or in a rail and its reinforcement shall not exceed those specified in Design Section 3109(a)(1), nor shall the deflections in the brackets and fastenings exceed those specified in Design Section 3109(a)(2).

(h) Guide Rail Guiding Surfaces. Guide rails shall have finished guiding surfaces.
(i) Rail Joints and Fishplates.
(1) Metal guide rails shall be joined together by fishplates of such design and strength as to withstand the forces specified in Design Section 3109(a) within the deflection limits specified.
(2) The joints of metal guide rails shall conform to the following requirements:
(A) The ends of the rails shall be accurately machined with a tongue and matching groove centrally located in the web.
(B) The backs of the rail flanges shall be accurately machined, in relation to the rail guiding surfaces, to a uniform distance front to back of the rails to form a flat surface for the finished fishplates.
(C) The ends of each rail shall be bolted to the fishplates with not fewer than 4 bolts.
(D) The width of the fishplate shall be not less than the width of the back of the rail.
(E) The thickness of the fishplates and the diameter of the bolts for each size of guide rail shall be not less than specified in Table No. 3030 I2.
(F) The diameter of bolt holes shall not exceed the diameter of the bolts by more than 1/16 inch for guide rails nor 1/8inch for fishplates.
TABLE NO. 3030 I2 Minimum Thickness of Fishplates and Minimum Diameter of
Fastening Bolts

Nominal Weight ............. Minimum Thickness .. Minimum Diameter
of Guide Rail in ............ of Fishplates ...... Of Bolts
Pounds Per Foot ............. In Inches .......... In Inches
8.................. 9/16 ... 1/2
11................. 11/16 .. 5/8
12................. 11/16 .. 5/8

15................. 11/16 .. 5/8
18 1/2............. 13/16 .. 3/4
22 1/2............. 13/16 .. 3/4
30................. 15/16 .. 3/4

(j) Overall Length of Guide Rails. The top and bottom ends of each run of guide rail shall be so located in relation to the extreme positions of travel of the car and counterweight that the car and counterweight guiding members cannot travel beyond the ends of the guide rails. This shall mean from the bottom of the pit to the underside of the overhead slab or beams.
(k) Guide Rail Brackets and Building Supports.
(1) The building construction forming the supports for the guide rail brackets shall be of such design as to:
(A) Safely withstand the application of the car or counterweight safety when stopping the car and its rated load or the counterweight.
(B) Withstand the forces specified in Design Section 3109(a) within the deflection limits specified.
Where necessary, the building construction shall be reinforced to provide adequate support for the guide rails.
Note: Hoistway enclosure walls of brick, terra cotta, and similar materials, used in buildings of steel and concrete construction, are usually insufficient in strength to form by themselves adequate supports for the guide rails.
(C) Withstand seismic forces created by accelerations of 0.5 g horizontally acting on the car and/or counterweight in their most adverse position in relation to any bracket without deflecting more than 1/4" and without exceeding 88% of the yield strength of the material used.
(2) Guide rail brackets shall be secured to their supporting structure by means of bolts, rivets, or by welding to withstand forces described in Section 3030(k)(1)(C). Fastening bolts and bolt holes in brackets and their supporting beams shall conform to the requirements of Section 3030(z). Welding shall conform to Section 3033(g).
(3) Bracket fastening to building structures designed to provide controlled movement between the brackets and the building shall be of a type acceptable to the Division and shall be of a design supported by engineering calculations.
(l) Fastening of Guide Rails to Rail Brackets.
(1) Guide rails shall be secured to their brackets by clips or by bolts.
(2) The size of bolts used for fastening the guide rails or rail clips to the brackets shall be not less than specified in Table No. 3030 L2.
TABLE NO. 3030 L2 Minimum size of Rail Fastening Bolts

Nominal Weight of Guide Rail .......... Minimum Diameter of Bolts
in Pounds Per Foot ..................... in Inches
8............................... 1/2
11.............................. 5/8
12.............................. 5/8
15.............................. 5/8
18 1/2.......................... 5/8
22 1/2.......................... 3/4

30.............................. 3/4

(3) The diameter of holes or the width of slots for fastening bolts shall not exceed the diameter of the bolt by more than 1/16inch. Where slots are used for adjustment of the distance between guide rails, the brackets shall be secured in their final position by a bolt not less than 3/8 inch diameter or by welding.

Note: Authority cited: Section 142.3, Labor Code.

s 3031. Car and Counterweight Buffers and Bumpers.
(a) Type Required.
(1) Buffers or bumpers shall be installed under the cars and counterweights of all cable-driven power elevators.
Exception: Counterweights of existing elevators which have never had bumpers or buffers.
(2) Spring buffers, oil buffers, or their equivalent, shall be used on all cable-driven power elevators.
Exception: Solid bumpers of rubber, wood, or other material having similar shock absorbing qualities may be used on:
1. Existing installations of solid bumpers.
2. Existing elevators having a rated speed of 50 feet per minute or less which have never had bumpers.
(3) Oil buffers or their equivalent shall be used where the rated speed is in excess of 200 feet per minute.
Exceptions:
1. Installations of bumpers or spring buffers made before June 5, 1947.
2. Where Type C safeties are used, solid bumpers may be used under the car.
(b) Location.
(1) Buffer or bumpers shall be located symmetrically with reference to the vertical centerline of the car frame or the counterweight frame, within the tolerance of 2 inches. The car bumpers or buffers shall be located so that the bottom runby does not exceed 24 inches.
(2) Buffers or bumpers shall be located in the pit.
Exceptions:
1. Oil buffers mounted on the counterweight.
2. Existing buffers mounted under the car.
(c) Stroke of Spring Buffers. Spring buffers shall be constructed so that the stroke of the buffer spring, as marked on its marking plate, shall be equal to or greater than the following:

Rated Car Speed ....... Stroke
Feet Per Minute .... In Inches
100 or less............. 1 1/2
101 to 150.............. 2 1/2
151 to 200.................. 4

(1) The spring buffer shall be mounted so that the spring will be compressed solid before the car or counterweight rests on the buffer support.
(d) Load Rating of Spring Buffers. Spring buffers for cars and counterweights shall:
(1) Be capable of supporting, without being compressed solid, a static load having a minimum of twice the total weight of:
(A) The car and its rated load for car buffers.
(B) The counterweight for counterweight buffers.
(2) Be compressed solid with a static load of 3 times the weight of:

(A) The car and its rated load for car buffers.
(B) The counterweight for counterweight buffers.
Exception: When Section 3019(a)(2) necessitates a greater load rating.
(e) Marking Plate for Spring Buffers. Each spring buffer shall have permanently attached to it a metal plate marked in a legible and permanent manner to show its stroke and load rating. (The load rating is the load required to compress the spring an amount equal to its stroke.)
(f) Stroke of Oil Buffers. The minimum stroke of oil buffers shall be based on the requirements outlined in Design Section 3108(a). Table 3031 F indicated the minimum buffer strokes for the most usual rated speeds. (continued)