- Industry: Mining
- Number of terms: 33118
- Number of blossaries: 0
- Company Profile:
The U.S. Bureau of Mines (USBM) was the primary United States Government agency conducting scientific research and disseminating information on the extraction, processing, use, and conservation of mineral resources.
Founded on May 16, 1910, through the Organic Act (Public Law 179), USBM's missions ...
In mining, a person who operates the hoisting engine that serves the shaft in which only workers are raised from and lowered into a mine.
Industry:Mining
In mining, a stationary piece of enclosed apparatus from which one or more electric circuits for supplying mining equipment are connected through overcurrent protective devices to an incoming feeder circuit.
Industry:Mining
In mining, effective grounding means that the path to ground from circuits, equipment, or conductor enclosures is permanent and continuous and has carrying capacity ample to conduct safely any currents liable to be imposed upon it. The path to ground associated with high-voltage alternating-current systems will have impedance low enough to limit potential above ground to a maximum of 100 V during the flow of ground fault current and to facilitate operation of the circuit protective devices. On low-voltage systems the sustained voltage above ground, appearing on the frames of power utilizing equipment during existence of a ground fault, will not be greater than 35 V; except when ground circuit check systems requiring higher voltage are used, a maximum of 100 V for a duration of 0.2 s is permissible. When bonded or mechanically connected track is available, such track is considered the grounding medium for direct current equipment only.
Industry:Mining
In mining, mandatory training given the miners having no previous mining experience; includes instruction in the statutory rights of miners and their representatives, use of selfrescue devices and respiratory devices where appropriate, hazard recognition, emergency procedures, electrical hazards, first aid, walk around training, and other health and safety aspects of the tasks to which the person will be assigned. Compare: refresher training; task training.
Industry:Mining
In mining, means that the law imposes upon every person the duty of using ordinary care for his or her own protection against injury. It is not synonymous with assumption of risk.
Industry:Mining
In mining, scraper-loader used to gather and transport severed rock. Cables pull a boxsided hoe over the loose ore, which is gathered and dragged (slushed) to the delivery point.
Industry:Mining
