524 CMR, § 29.12 - Safety Factor and Hoistway Requirements
(1)
Elevator Platform Construction. The platform shall be
of steel frame construction designed with a safety factor of not less than six
based on the rated load, uniformly distributed. All other parts of the
equipment shall have a safety factor as required by
524 CMR 35.00: Safety
Code for Elevators and Escalators A17.1-2013 and the Massachusetts
Modifications of That Code.
(2)
Installations in the Same
Hoistway. When installations are in the same hoistway the adjacent
sides shall be provided with solid dividing wall partitions with not less than
% hour fire resistive construction.
(3) When travel extends above the top of the
hoistway enclosure, aprons of substantial construction shall be provided on the
platform of sufficient depth to enclose the space between the top of the
hoistway enclosure and the underside of the platform plus three inches when the
platform is at its limit of travel.
(4) The lower edge of the aprons shall be
beveled at an angle of at least 75 with the horizontal.
Notes
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