Michigan Administrative Code
Department - Labor and Economic Opportunity
MIOSHA
General Industry and Construction Safety and Occupational Health Standards
Construction Safety and Health Standard
Part 15 - EXCAVATORS, HOISTS, ELEVATORS, HELICOPTERS, AND CONVEYORS
HOISTS AND ELEVATORS
Section R. 408.41531 - Definitions

(1) "Audible signal" means a signal made by a distinct sound or series of sounds. Examples include, but are not limited to, sounds made by a bell, horn, or whistle.

(2) "Base" means the mounting flanges or feet for attachment of a hoist to the machine's supporting structure or foundation.

(3) "Base-mounted drum hoist" means a self-contained lifting unit that has a motor, a drum to receive the lifting cable, and mounting flanges for anchoring.

(4) "Crosshead" means an overhead structural member that supports the hoist platform to which the hoisting or load cables are attached.

(5) "Elevator" means, for the purposes of this standard, a permanently installed or existing passenger or freight elevator used for construction operations.

(6) "Hoist" means a system of power driven drums, gears, cables, chains, or hydraulic cylinders capable of lifting and lowering loads.

(7) "Hoist car" means the load-carrying unit, including its platform, car frame, car enclosure, and car door or gate.

(8) "Hoist tower" means a vertical structure used to support or house the platform and cab of an elevator or hoist.

(9) "Hoisting" means the act of raising, lowering, or otherwise moving a load in the air with equipment covered by this standard. As used in this standard, "hoisting" can be done by means other than wire rope/hoist drum equipment.

(10) "Lockout device" means a positive mechanical method for disconnecting the power supply.

(11) "Material hoist" means a mechanism for use in the hoisting or lowering of construction or demolition material only. A material hoist is equipped with a platform, car, cage, or bucket that moves vertically on guide members.

(12) "Personnel hoist" means a mechanism and its hoistway that is used for raising or lowering personnel or materials, or both, during construction operations, and is equipped with a car that moves vertically on guide members.

(13) "Rated load" for material hoists, personnel hoists, and elevators means the maximum load permitted by the manufacturer's specifications and by sections 1 to 24 of 1967 PA 227, MCL 408.82 1 to 408.824, and sections 1 to 10 of 1976 PA 333, MCL 338.2151 to 338.2160, respectively.

(14) "Running rope" means a rope that travels around sheaves or drums.

(15) "Signal system" means an audible or visual method of communication between the equipment operator and the persons on the landing or floors.

(16) "Standing rope" including guy rope, means a supporting rope that maintains a constant distance between the points of attachment to the 2 components connected by the rope.

(17) "Tie-in" means a rigid device used to affix the hoist tower to the structure.

(18) "Wire rope" means a flexible rope constructed by laying steel wires into various patterns of multi-wired strands around a core system to produce a helically wound rope.