Mich. Admin. Code R. 408.11803

Current through Vol. 24-21, December 1, 2024

Section R. 408.11803 - Definitions; B to D

Rule 1803.

(1) "Brake" means a device used for retarding or stopping motion by friction or power means.

(2) "Bridge" means that part of a crane consisting of girders, trucks, end ties, footwalks, and the driving mechanism which carries the trolley or trolleys.

(3) "Bumper" means an energy-absorbing device for reducing impact when a moving crane or trolley reaches the end of its permitted travel, or when 2 moving cranes or trolley come in contact.

(4) "Cab" means an operator compartment located on a crane bridge or trolley.

(5) "Cab operated crane" means a crane controlled by an operator in a cab located on the bridge or trolley.

(6) "Catwalk" means a walkway with handrail and toeboards which are attached to the bridge or trolley, or both, for access purposes.

(7) "Competent person" means a person who has the necessary experience of the crane and equipment used in the lifting operation to carry out the function satisfactorily, who is capable of identifying an existing or potential hazard in surroundings, or under working conditions, that are hazardous or dangerous to an employee, and who has the authority and knowledge to take prompt corrective measures to eliminate the hazards.

(8) "Collector shoe" means a contacting device for collecting current from runway or bridge conductors.

(9) "Conductors, bridge" means the electrical conductors located along the bridge structure of a crane to provide power to the trolley.

(10) "Conductors, runway" means the electrical conductors located along a crane runway to provide power to the crane.

(11) "Controller" means a device or group of devices that serves to govern, in a predetermined manner, the power delivered directly to the apparatus to which it is connected.

(12) "Crane" means a top running overhead or gantry crane.

(13) "Designated" means selected or assigned by the employer or the employer's representative as being qualified to perform specific duties.

(14) "Drag brake" means a brake that provides retarding force without external control.

Mich. Admin. Code R. 408.11803

1979 AC; 2002 AACS