Mich. Admin. Code R. 408.7092 - Frames, enclosures, platforms, capacity, and final limits
Rule 92.
(1) A
car frame and platform shall be of metal. Frame members shall be securely
bolted and braced. The factor of safety shall not be less than 4 with a
uniformly distributed rated load.
(2) The car shall be enclosed to the extent
necessary to afford reasonable protection.
(3) The platform area shall not exceed 5
square feet.
(4) The rated capacity
shall be not less than 300 pounds.
(5) The limit of travel for the elevator
shall be not more than 50 feet.
Notes
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