34 Pa. Code § 7.300 - Electric or oil-electric platform elevators
Special requirements for electric or oil-electric platform elevators are the following:
(1) The rise shall not exceed 20
feet.
(2) The capacity shall not
exceed 2,500 pounds.
(3) The speed
shall not exceed 30 feet per minute.
(4) The platform shall not exceed 36 square
feet in area.
(5) The winding drums
and sheaves shall not be less than 14 inches in diameter.
(6) The machine, motor and controller shall
not be placed in the pit, but drums may be placed in the pit under the elevator
car.
(7) Guide rails shall extend
from the pit to the top of the shaft and be constructed of steel or
iron.
(8) An elevator shall have at
least two cables of not less than 1/2 inch diameter.
(9) Platform elevators may be used from the
basement to the first floor only.
(10) Spring buffers shall be provided and so
placed that the car cannot rest on the drums or drum shaft.
(11) A pit shall be not less than four feet
deep, but is exempt from application of §
7.274 (relating to shaftway
clearances).
(12) Elevators may be
of the two-point suspension type, but not of the four-point suspension
type.
(13) Cars shall be provided
with a safety device of the broken rope or governor type.
(14) Machines shall be provided with
automatic terminal stops and shall have shaftway limit switches at the top and
bottom.
(15) Shaftway enclosure
gates or doors and locking devices shall comply with the requirements for
freight elevators, except that shaftway enclosures shall be flush from top to
bottom.
(16) Control shall be of
the car switch, double-button constant pressure or full automatic pushbutton
type. Hand rope control is prohibited.
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