Section R. 408.7031b - Guards between adjacent pitsRule 31b. Section 2.2.3 of the ASME A17.1 code is amended to read as follows:
2.2.3.1 Guards must be provided between adjacent pits. The guard must be of noncombustible material. The guard, if of openwork material, must reject a ball 25 mm (1 inch) in diameter. The guard must be supported such that when subjected to a force of 450 N (100 lbf) applied over an area of 100 mm by 100 mm (4 inches by 4 inches) at any location, the deflection must not reduce the clearance between the guard and the adjacent pit below 25 mm (1 inch). Guards must extend not less than 2000 mm (79 inches) above the level of the higher pit floor. Where a ladder is installed adjacent to a guard, the guard must extend not less than 2000 mm (79 inches) above the top rung or rungs used as handgrips. A single horizontal structural element at the top of a pit ladder, used to stabilize the vertical side rails, is not considered a rung or handgrip.2.2.3.2 Where access to pits of elevators in a multiple hoistway is by means of a separate pit access door (see 2.2.4.5) and not by a pit access ladder, adjacent pits must: (a) Be guarded as required by 2.2.3.1.(b)The guards may be omitted if the clearance between the bottom of the car or counterweight, including any equipment attached thereto, while resting on a fully compressed buffer and the bottom of the pit is not less than 2,130 mm (84 inches)Mich. Admin. Code R. 408.7031b
2023 MR 6, Eff. 3/29/2023