§ 7.116. Platform construction.
(a) The platforms of stage, orchestra, organ console and lumber elevators shall be of steel frame construction designed with a factor of safety of not less than six based on the rated load, uniformly distributed. Other parts of the equipment shall have a safety factor as required by this chapter.
(b) When orchestra and organ console elevators are installed in the same shaftway, the adjacent sides shall be provided with aprons of substantial construction or railings and toeboards, or all if necessary, to avoid a shearing hazard.
(c) When the travel of a stage, orchestra or organ console elevator extends above the top of the shaftway enclosure, aprons of substantial construction shall be provided on the platform of sufficient depth to enclose the space between the top of the shaftway enclosure and the underside of the platform when the platform is at its limit of travel.
(d) When the travel of a lumber elevator extends above the top of the surrounding floor level, an apron of substantial construction shall be provided on all sides of the platform of a sufficient depth to enclose the space between the floor level and the underside of the platform when the platform is at its limit of travel.
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