R 408.10504
R 408.10504 Definitions; E to L.
Cite as Mich. Admin. Code R 408.10504
Rule 504. (1) “Equivalent” means alternative designs, materials, or methods that the
employer can demonstrate will provide an equal or greater degree of safety for employees
than the methods, materials, or designs specified in the standard.
(2) “Ground rigging” means a method of suspending a working platform starting
from a safe surface to a point of suspension above the safe surface.
(3) “Ground rigged davit” means a davit that cannot be used to raise a suspended
working platform above the building face being serviced.
(4) “Guide button” means a building face anchor designed to engage a guide track
mounted on a platform.
(5) “Guide roller” means a rotating cylindrical member, operating separately or as
part of a guide assembly, designed to provide continuous engagement between the
platform and the building guides or guideways.
(6) “Guide shoe” means a device attached to the platform designed to provide a
sliding contact between the platform and the building guides.
(7) “Hoisting machine” means a device intended to raise and lower a suspended or
supported unit.
(8) “Hoist rated load” means the hoist manufacturer's maximum allowable operating
load.
(9) “Installation” means all the equipment and all affected parts of a building that are
associated with the performance of building maintenance using powered platforms.
(10) “Interlock” means a device designed to ensure that operations or motions occur
in proper sequence.
(11) “Intermittent stabilization” means a method of platform stabilization in which
the angulated suspension wire rope or ropes are secured to regularly spaced building
anchors.
(12) “Lanyard” means a flexible line of rope, wire rope, or strap that is used to
secure the body belt or body harness to a deceleration device, lifeline, or anchorage.
(13) “Lifeline” means a component consisting of a flexible line for connection to an
anchorage at 1 end to hang vertically, vertical lifeline, or for connection to anchorages at
both ends to stretch horizontally, horizontal lifeline, and which serves as a means for
connecting other components of a personal fall arrest system to the anchorage.
(14) “Live load” means the total static weight of workers, tools, parts, and supplies
that the equipment is designed to support.