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

Current through Vol. 24-12, July 15, 2024
Rule 1531.
(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.