34 Pa. Code § 7.57 - Elevator cars
(a) Elevator cars
shall be constructed according to the following:
(1)
Existing installations.
Passenger elevator cars shall be completely enclosed, except at the door or
gate openings. The tops and sides of such elevator cars may be of grillework or
other open construction, if the places opposite moving parts which are within 4
inches of the car are covered with a wire screen having a mesh of not more than
3/8 inch to a height of at least 6 feet.
(2)
New installations. The
cars of passenger elevators shall be enclosed, except at door or gate openings.
Such enclosures shall be of solid construction, to a height of not less than 6
feet above the car floor. Above the solid panel and extending to the top frame
of the car, open work may be used, if the spacing between the members does not
exceed 1 inch. That portion of the car enclosure bordering on the counterweight
runways shall be of solid construction to its full height, or of wire mesh not
less than No. 10 standard steel wire gauge or .135 inch diameter. Expanded
metal, when used, shall not be less than No. 18 U.S. gauge or .05 inch in size,
which will reject a ball 3/8 inch in diameter. Car frames shall be constructed
of wrought iron or steel. The tops of passenger elevator cars shall be
constructed to sustain a concentrated load of 150 pounds at any point. Any
material used for insulating, padding, sound-deadening, decorative purposes, or
any material used for light diffusion in passenger elevator cars shall conform
to Rule 204.2, Subparagraph 2 including exception of ANSI A17.1-1971.
(b) Car openings shall conform to
the following:
(1) The cars of passenger
elevators shall not have door or gate openings on more than two sides. Such
openings shall have sliding or rolling doors or collapsing gates. When
collapsing gates are used, the openings in the fully expanded gates shall not
exceed 3 inches.
(2) Doors or gates
shall be equipped with an electrical or mechanical device so constructed and
installed that the car will be immovable when the doors or gates are
open.
(3) When collapsible car
gates on automatic or double-button-controlled passenger elevators are opened
by power, approved curtains or other approved devices shall be provided.
Curtains are required only on power-operated collapsible car gates when the
opening movement of the gate is sufficient to cause a shearing hazard. When
curtains are used they shall be at least 4 feet in height and extend from
approximately 1 foot of the car platform to 5 feet from the car
platform.
(4) When self-leveling or
floor-finding devices are installed on elevators, the car gate may be open
while the elevator is leveling without interference with the operating circuit,
if the shaftway is flush and the car is provided with an apron which exceeds
the length of the leveling zone.
(5) When the requirements of this rule are
not met on existing elevators the continued use of such elevators is subject to
the approval of the Board.
(c) Emergency exits for elevator cars shall
be provided as follows:
(1) The cars of
passenger elevators shall have trapdoors located in the top enclosure of such
size as to afford an easy means of egress for passengers. Such exits shall not
contain fans or light fixtures. Such trap doors shall be installed so that they
may be opened from the outside of the car enclosure only.
(2) When two or more cars operate in
contiguous shaftways, and the distance between car platforms does not exceed 2
feet 6 inches, and when there are no intervening shaftway partitions,
counterweights, or any fixed obstructions between the car, additional means of
egress shall be provided in the sides of the cars. If such elevators are not
permitted to have side exits, each elevator shall be treated as though it were
in a single shaftway. Plunger oil hydraulic elevators are excluded, provided
that all shaftway doors are equipped with emergency key-ways.
(3) Side exits shall be located so that they
are not obstructed by car frame members, and, if possible, traveling cables and
other hoistway equipment shall not be located in line with or so as to obstruct
the exit. Exits from adjacent cars shall be directly opposite each other to
allow easy transfer of passengers. Such exit doors shall be installed so that
they may be opened from the inside and the outside of the car
enclosure.
(4) Emergency trap doors
and side exits shall be equipped with electric contacts to prevent the
operation of the car when the panel or trap door is opened or
removed.
(5) The cars of existing
passenger elevators shall have trapdoors located in the top enclosure of such
size to afford an easy means of egress for passengers. When two or more cars
are operated in contiguous shaftways, additional means of egress may be
provided in the sides of the cars.
(d) When double-deck elevators are installed,
operating, emergency, and door safety equipment shall be installed in each cab
or compartment in accordance with this chapter.
(e) No device shall be installed in elevator
cars for the purpose of operating car doors or gates unless approved by the
Board.
Notes
This section cited in 34 Pa. Code § 7.71 (relating to conflicts).
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