R 408.10564 Design of installation; equipment.

Rule 564. (1) The requirements of this rule apply to equipment that is part of a powered platform installation, such as any of the following: (a) Platforms. (b) Stabilizing components. (c) Carriages. (d) Outriggers. (e) Hoisting machines. (f) Wire ropes. (g) Electrical components. (2) Equipment installations shall be designed by, or under the direction of, a registered professional engineer who is experienced in such design. (3) The design shall provide for a minimum live load of 250 pounds (113.6 kg) for each occupant of a suspended or supported platform. (4) Equipment that is exposed to wind when not in service shall be designed to withstand forces generated by winds that have a velocity of at least 100 miles per hour (44.7 m/s) at 30 feet (9.2 m) above grade. (5) Equipment that is exposed to wind when in service shall be designed to withstand forces generated by winds that have a velocity of at least 50 miles per hour (22.4 m/s) for all elevations. (6) Bolted connections shall be self-locking or shall otherwise be secured to prevent the loss of the connections by vibration.